2. Computers & electronics
  3. Software
  4. Dell
  5. PowerSwitch S4048T-ON
PowerSwitch S4048T-ON

Dell PowerSwitch S4048T-ON Owner's manual

  • Hello! I am an AI chatbot trained to assist you with the Dell PowerSwitch S4048T-ON Owner's manual. I’ve already reviewed the document and can help you find the information you need or explain it in simple terms. Just ask your questions, and providing more details will help me assist you more effectively!
Dell EMC Conguration Guide for the S4048T–
ON System
9.14.2.0
Notes, cautions, and warnings
NOTE: A NOTE indicates important information that helps you make better use of your product.
CAUTION: A CAUTION indicates either potential damage to hardware or loss of data and tells you how to avoid the problem.
WARNING: A WARNING indicates a potential for property damage, personal injury, or death.
© 2019 Dell Inc. or its subsidiaries. All rights reserved. Dell, EMC, and other trademarks are trademarks of Dell Inc. or its subsidiaries. Other trademarks
may be trademarks of their respective owners.
2019 - 04
Rev. A00
Contents
1 About this Guide...........................................................................................................................................37
Audience............................................................................................................................................................................37
Conventions...................................................................................................................................................................... 37
Related Documents..........................................................................................................................................................37
2 Conguration Fundamentals........................................................................................................................ 38
Accessing the Command Line........................................................................................................................................38
CLI Modes.........................................................................................................................................................................38
Navigating CLI Modes...............................................................................................................................................40
The do Command............................................................................................................................................................ 43
Undoing Commands........................................................................................................................................................ 43
Obtaining Help..................................................................................................................................................................44
Entering and Editing Commands....................................................................................................................................44
Command History............................................................................................................................................................45
Filtering show Command Outputs.................................................................................................................................45
Example of the grep Keyword.................................................................................................................................. 45
Multiple Users in Conguration Mode...........................................................................................................................46
3 Getting Started............................................................................................................................................47
Console Access................................................................................................................................................................48
Serial Console.............................................................................................................................................................48
Accessing the CLI Interface and Running Scripts Using SSH....................................................................................49
Entering CLI commands Using an SSH Connection..............................................................................................49
Executing Local CLI Scripts Using an SSH Connection........................................................................................49
Default Conguration...................................................................................................................................................... 50
Conguring a Host Name............................................................................................................................................... 50
Accessing the System Remotely................................................................................................................................... 50
Accessing the System Remotely............................................................................................................................. 50
Congure the Management Port IP Address.........................................................................................................50
Congure a Management Route...............................................................................................................................51
Conguring a Username and Password...................................................................................................................51
Conguring the Enable Password..................................................................................................................................52
Conguration File Management.....................................................................................................................................52
Copy Files to and from the System......................................................................................................................... 53
Mounting an NFS File System..................................................................................................................................53
Save the Running-Conguration............................................................................................................................. 55
Congure the Overload Bit for a Startup Scenario............................................................................................... 56
Viewing Files...............................................................................................................................................................56
Compressing Conguration Files..............................................................................................................................57
Managing the File System.............................................................................................................................................. 59
Enabling Software Features on Devices Using a Command Option......................................................................... 60
View Command History.................................................................................................................................................. 60
Contents
3
Upgrading Dell EMC Networking OS............................................................................................................................. 61
Verify Software Images Before Installation....................................................................................................................61
Using HTTP for File Transfers........................................................................................................................................ 62
4 Management................................................................................................................................................63
Conguring Privilege Levels............................................................................................................................................63
Creating a Custom Privilege Level...........................................................................................................................64
Removing a Command from EXEC Mode.............................................................................................................. 64
Moving a Command from EXEC Privilege Mode to EXEC Mode........................................................................64
Allowing Access to CONFIGURATION Mode Commands....................................................................................64
Allowing Access to Dierent Modes........................................................................................................................64
Applying a Privilege Level to a Username............................................................................................................... 66
Applying a Privilege Level to a Terminal Line.......................................................................................................... 66
Conguring Logging........................................................................................................................................................ 66
Audit and Security Logs............................................................................................................................................ 67
Conguring Logging Format ...................................................................................................................................69
Display the Logging Buer and the Logging Conguration..................................................................................69
Setting Up a Secure Connection to a Syslog Server.............................................................................................70
Sending System Messages to a Syslog Server.......................................................................................................71
Track Login Activity.......................................................................................................................................................... 71
Restrictions for Tracking Login Activity................................................................................................................... 71
Conguring Login Activity Tracking..........................................................................................................................71
Display Login Statistics..............................................................................................................................................72
Limit Concurrent Login Sessions....................................................................................................................................73
Restrictions for Limiting the Number of Concurrent Sessions.............................................................................73
Conguring Concurrent Session Limit.....................................................................................................................74
Enabling the System to Clear Existing Sessions.....................................................................................................74
Enabling Secured CLI Mode........................................................................................................................................... 75
Log Messages in the Internal Buer..............................................................................................................................75
Conguration Task List for System Log Management.......................................................................................... 75
Disabling System Logging............................................................................................................................................... 75
Sending System Messages to a Syslog Server............................................................................................................ 76
Conguring a UNIX System as a Syslog Server.....................................................................................................76
Changing System Logging Settings...............................................................................................................................76
Display the Logging Buer and the Logging Conguration........................................................................................ 77
Conguring a UNIX Logging Facility Level.................................................................................................................... 78
Synchronizing Log Messages......................................................................................................................................... 79
Enabling Timestamp on Syslog Messages.................................................................................................................... 79
File Transfer Services...................................................................................................................................................... 80
Conguration Task List for File Transfer Services..................................................................................................80
Enabling the FTP Server...........................................................................................................................................80
Conguring FTP Server Parameters....................................................................................................................... 80
Conguring FTP Client Parameters..........................................................................................................................81
Terminal Lines....................................................................................................................................................................81
Denying and Permitting Access to a Terminal Line................................................................................................82
Conguring Login Authentication for Terminal Lines.............................................................................................83
4
Contents
Setting Timeout for EXEC Privilege Mode................................................................................................................... 84
Using Telnet to get to Another Network Device..........................................................................................................84
Lock CONFIGURATION Mode.......................................................................................................................................85
Viewing the Conguration Lock Status...................................................................................................................85
LPC Bus Quality Degradation.........................................................................................................................................85
LBQA (LPC Bus Quality Analyzer) Failure Detection mode..................................................................................86
Restoring the Factory Default Settings........................................................................................................................ 86
Important Points to Remember................................................................................................................................86
Restoring Factory Default Environment Variables..................................................................................................87
Viewing the Reason for Last System Reboot...............................................................................................................88
5 802.1X......................................................................................................................................................... 89
Port-Authentication Process...........................................................................................................................................91
EAP over RADIUS.......................................................................................................................................................91
Conguring 802.1X...........................................................................................................................................................92
Related Conguration Tasks..................................................................................................................................... 92
Important Points to Remember......................................................................................................................................92
Enabling 802.1X................................................................................................................................................................ 93
Conguring Request Identity Re-Transmissions...........................................................................................................94
Conguring a Quiet Period after a Failed Authentication..................................................................................... 95
Forcibly Authorizing or Unauthorizing a Port............................................................................................................... 96
Re-Authenticating a Port................................................................................................................................................96
Conguring Timeouts...................................................................................................................................................... 97
Conguring Dynamic VLAN Assignment with Port Authentication...........................................................................98
Guest and Authentication-Fail VLANs.......................................................................................................................... 99
Conguring a Guest VLAN......................................................................................................................................100
Conguring an Authentication-Fail VLAN............................................................................................................. 100
6 Access Control List (ACL) VLAN Groups and Content Addressable Memory (CAM).................................. 102
Optimizing CAM Utilization During the Attachment of ACLs to VLANs................................................................. 102
Guidelines for Conguring ACL VLAN Groups........................................................................................................... 103
Conguring ACL VLAN Groups and Conguring FP Blocks for VLAN Parameters...............................................103
Conguring ACL VLAN Groups.............................................................................................................................. 103
Conguring FP Blocks for VLAN Parameters.......................................................................................................104
Viewing CAM Usage...................................................................................................................................................... 105
Allocating FP Blocks for VLAN Processes.................................................................................................................. 106
Unied Forwarding Table (UFT) Modes...................................................................................................................... 107
Conguring UFT Modes.......................................................................................................................................... 107
7 Access Control Lists (ACLs)....................................................................................................................... 108
IP Access Control Lists (ACLs).....................................................................................................................................109
CAM Usage................................................................................................................................................................110
Implementing ACLs on Dell EMC Networking OS................................................................................................ 110
Important Points to Remember.....................................................................................................................................112
Conguration Task List for Route Maps.................................................................................................................112
Conguring Match Routes.......................................................................................................................................114
Contents
5
Conguring Set Conditions......................................................................................................................................116
Congure a Route Map for Route Redistribution..................................................................................................117
Congure a Route Map for Route Tagging............................................................................................................ 117
Continue Clause........................................................................................................................................................ 118
IP Fragment Handling..................................................................................................................................................... 118
IP Fragments ACL Examples................................................................................................................................... 118
Layer 4 ACL Rules Examples................................................................................................................................... 119
Congure a Standard IP ACL.........................................................................................................................................119
Conguring a Standard IP ACL Filter..................................................................................................................... 120
Congure an Extended IP ACL......................................................................................................................................121
Conguring Filters with a Sequence Number........................................................................................................121
Conguring Filters Without a Sequence Number.................................................................................................123
Congure Layer 2 and Layer 3 ACLs............................................................................................................................123
Assign an IP ACL to an Interface..................................................................................................................................124
Applying an IP ACL.........................................................................................................................................................124
Counting ACL Hits....................................................................................................................................................125
Congure Ingress ACLs................................................................................................................................................. 125
Congure Egress ACLs.................................................................................................................................................. 126
Applying Egress Layer 3 ACLs (Control-Plane).....................................................................................................127
IP Prex Lists...................................................................................................................................................................127
Implementation Information.................................................................................................................................... 128
Conguration Task List for Prex Lists.................................................................................................................. 128
ACL Remarks................................................................................................................................................................... 131
Conguring a Remark............................................................................................................................................... 131
Deleting a Remark.................................................................................................................................................... 132
ACL Resequencing......................................................................................................................................................... 133
Resequencing an ACL or Prex List.......................................................................................................................133
Route Maps.....................................................................................................................................................................134
Implementation Information.................................................................................................................................... 134
Logging of ACL Processes............................................................................................................................................ 135
Guidelines for Conguring ACL Logging................................................................................................................136
Conguring ACL Logging.........................................................................................................................................136
Flow-Based Monitoring..................................................................................................................................................137
Behavior of Flow-Based Monitoring.......................................................................................................................137
Enabling Flow-Based Monitoring............................................................................................................................138
Conguring UDF ACL.................................................................................................................................................... 139
Conguring IP Mirror Access Group............................................................................................................................ 142
Sample Conguration...............................................................................................................................................143
Example of viewing IP mirror–access–group applied to an Interface................................................................143
8 Bidirectional Forwarding Detection (BFD).................................................................................................. 144
How BFD Works............................................................................................................................................................. 144
BFD Packet Format..................................................................................................................................................145
BFD Sessions............................................................................................................................................................ 146
BFD Three-Way Handshake.................................................................................................................................... 147
Session State Changes............................................................................................................................................149
6
Contents
Important Points to Remember.................................................................................................................................... 149
Congure BFD................................................................................................................................................................ 150
Congure BFD for Physical Ports.......................................................................................................................... 150
Congure BFD for Static Routes............................................................................................................................152
Congure BFD for IPv6 Static Routes...................................................................................................................155
Congure BFD for OSPF.........................................................................................................................................158
Congure BFD for OSPFv3.....................................................................................................................................163
Congure BFD for IS-IS...........................................................................................................................................166
Congure BFD for BGP...........................................................................................................................................168
Congure BFD for VRRP.........................................................................................................................................176
Conguring Protocol Liveness................................................................................................................................ 178
9 Border Gateway Protocol (BGP)................................................................................................................ 179
BGP IP version 4 (BGPv4) Overview.......................................................................................................................... 179
BGP Autonomous Systems..................................................................................................................................... 179
AS4 Number Representation................................................................................................................................... 181
Four-Byte AS Numbers............................................................................................................................................183
BGP router ID............................................................................................................................................................183
Sessions and Peers...................................................................................................................................................183
Establish a Session................................................................................................................................................... 184
BGP Attributes for selecting Best Path.................................................................................................................184
Multiprotocol BGP....................................................................................................................................................189
BGP global and address family conguration........................................................................................................190
Implement BGP with Dell EMC Networking OS...................................................................................................192
Conguration Information....................................................................................................................................... 195
Basic BGP conguration tasks..................................................................................................................................... 195
Prerequisite for conguring a BGP network......................................................................................................... 195
Restrictions............................................................................................................................................................... 196
Enabling BGP............................................................................................................................................................ 196
Enabling four-byte autonomous system numbers................................................................................................198
Changing a BGP router ID.......................................................................................................................................199
Conguring AS4 Number Representations...........................................................................................................199
Conguring a BGP peer...........................................................................................................................................201
Example-Conguring BGP routing between peers............................................................................................. 202
BGP peer group....................................................................................................................................................... 203
Advanced BGP conguration tasks.............................................................................................................................209
Route-refresh and Soft-reconguration................................................................................................................210
Aggregating Routes..................................................................................................................................................212
Filtering BGP.............................................................................................................................................................214
Conguring BGP Fast Fall-Over............................................................................................................................. 221
Conguring Passive Peering...................................................................................................................................222
Enabling Graceful Restart.......................................................................................................................................223
Redistributing Routes..............................................................................................................................................224
Redistributing iBGP Routes into IGP.....................................................................................................................225
Enabling Additional Paths........................................................................................................................................227
Conguring IP Community Lists............................................................................................................................ 228
Contents
7
Conguring an IP Extended Community List....................................................................................................... 229
Congure BGP attributes....................................................................................................................................... 230
Enabling Multipath...................................................................................................................................................234
Route Reectors......................................................................................................................................................235
Enabling Route Flap Dampening............................................................................................................................ 236
Changing BGP keepalive and hold timers.............................................................................................................239
Setting the extended timer.................................................................................................................................... 240
Enabling or disabling BGP neighbors.....................................................................................................................240
Route Map Continue................................................................................................................................................ 241
Conguring BGP Confederations.......................................................................................................................... 242
Conguring a BGP VRF address family.................................................................................................................243
Maintaining Existing AS Numbers During an AS Migration................................................................................ 244
Allowing an AS Number to Appear in its Own AS Path...................................................................................... 245
Enabling MBGP Congurations............................................................................................................................. 246
MBGP support for IPv6..........................................................................................................................................246
Conguring IPv6 MBGP between peers.............................................................................................................. 246
Example-Conguring IPv4 and IPv6 neighbors....................................................................................................247
Congure IPv6 NH Automatically for IPv6 Prex Advertised over IPv4 Neighbor......................................... 249
BGP Regular Expression Optimization...................................................................................................................251
Debugging BGP........................................................................................................................................................ 251
10 Content Addressable Memory (CAM).......................................................................................................254
CAM Allocation.............................................................................................................................................................. 254
Test CAM Usage............................................................................................................................................................256
View CAM-ACL Settings.............................................................................................................................................. 256
View CAM Usage...........................................................................................................................................................258
Conguring CAM Threshold and Silence Period........................................................................................................258
Setting CAM Threshold and Silence Period......................................................................................................... 259
CAM Optimization......................................................................................................................................................... 260
Troubleshoot CAM Proling..........................................................................................................................................260
QoS CAM Region Limitation...................................................................................................................................260
11 Control Plane Policing (CoPP)...................................................................................................................261
Congure Control Plane Policing................................................................................................................................. 262
Conguring CoPP for Protocols............................................................................................................................ 263
Conguring CoPP for CPU Queues...................................................................................................................... 265
CoPP for OSPFv3 Packets.....................................................................................................................................266
Conguring CoPP for OSPFv3.............................................................................................................................. 269
Displaying CoPP Conguration .............................................................................................................................269
12 Data Center Bridging (DCB)..................................................................................................................... 272
Ethernet Enhancements in Data Center Bridging......................................................................................................272
Priority-Based Flow Control....................................................................................................................................273
Enhanced Transmission Selection.......................................................................................................................... 274
Data Center Bridging Exchange Protocol (DCBx)...............................................................................................275
Data Center Bridging in a Trac Flow...................................................................................................................276
8
Contents
Enabling Data Center Bridging..................................................................................................................................... 276
DCB Maps and its Attributes.................................................................................................................................. 277
Data Center Bridging: Default Conguration..............................................................................................................278
Conguring Priority-Based Flow Control.................................................................................................................... 278
Conguring Lossless Queues..................................................................................................................................279
Conguring PFC in a DCB Map................................................................................................................................... 280
PFC Conguration Notes....................................................................................................................................... 280
PFC Prerequisites and Restrictions........................................................................................................................281
Applying a DCB Map on a Port.....................................................................................................................................281
Conguring PFC without a DCB Map.........................................................................................................................282
Conguring Lossless QueuesExample:..................................................................................................................282
Priority-Based Flow Control Using Dynamic Buer Method....................................................................................284
Pause and Resume of Trac..................................................................................................................................284
Buer Sizes for Lossless or PFC Packets.............................................................................................................284
Behavior of Tagged Packets.........................................................................................................................................285
Conguration Example for DSCP and PFC Priorities................................................................................................285
Using PFC to Manage Converged Ethernet Trac...................................................................................................286
Congure Enhanced Transmission Selection..............................................................................................................286
ETS Prerequisites and Restrictions........................................................................................................................287
Creating an ETS Priority Group..............................................................................................................................287
ETS Operation with DCBx......................................................................................................................................288
Conguring Bandwidth Allocation for DCBx CIN.................................................................................................288
Conguring ETS in a DCB Map..............................................................................................................................289
Hierarchical Scheduling in ETS Output Policies..........................................................................................................291
Using ETS to Manage Converged Ethernet Trac....................................................................................................291
Applying DCB Policies in a Switch Stack.....................................................................................................................291
Congure a DCBx Operation.........................................................................................................................................291
DCBx Operation....................................................................................................................................................... 292
DCBx Port Roles...................................................................................................................................................... 292
DCB Conguration Exchange................................................................................................................................ 293
Conguration Source Election................................................................................................................................294
Propagation of DCB Information............................................................................................................................294
Auto-Detection and Manual Conguration of the DCBx Version...................................................................... 295
DCBx Example......................................................................................................................................................... 295
DCBx Prerequisites and Restrictions.....................................................................................................................296
Conguring DCBx....................................................................................................................................................296
Verifying the DCB Conguration................................................................................................................................. 300
QoS dot1p Trac Classication and Queue Assignment..........................................................................................309
Conguring the Dynamic Buer Method.................................................................................................................... 310
Sample DCB Conguration............................................................................................................................................ 311
PFC and ETS Conguration Command Examples............................................................................................... 313
13 Dynamic Host Conguration Protocol (DHCP)..........................................................................................314
DHCP Packet Format and Options.............................................................................................................................. 314
Assign an IP Address using DHCP................................................................................................................................316
Implementation Information...........................................................................................................................................317
Contents
9
Congure the System to be a DHCP Server...............................................................................................................317
Conguring the Server for Automatic Address Allocation...................................................................................318
Specifying a Default Gateway.................................................................................................................................319
Congure a Method of Hostname Resolution..................................................................................................... 320
Using DNS for Address Resolution........................................................................................................................320
Using NetBIOS WINS for Address Resolution..................................................................................................... 320
Creating Manual Binding Entries............................................................................................................................320
Debugging the DHCP Server..................................................................................................................................321
Using DHCP Clear Commands............................................................................................................................... 321
Congure the System to be a Relay Agent................................................................................................................. 321
Congure the System to be a DHCP Client............................................................................................................... 323
Conguring the DHCP Client System................................................................................................................... 323
DHCP Client on a Management Interface............................................................................................................325
DHCP Client Operation with Other Features.......................................................................................................325
DHCP Relay When DHCP Server and Client are in Dierent VRFs........................................................................ 326
Conguring Route Leaking between VRFs on DHCP Relay Agent................................................................... 326
Non-default VRF conguration for DHCPv6 helper address................................................................................... 327
Conguring DHCP relay source interface...................................................................................................................328
Global DHCP relay source IPv4 or IPv6 conguration ....................................................................................... 328
Interface level DHCP relay source IPv4 or IPv6 conguration ..........................................................................328
Congure the System for User Port Stacking (Option 230)....................................................................................330
Congure Secure DHCP...............................................................................................................................................330
Option 82..................................................................................................................................................................330
DHCPv6 relay agent options...................................................................................................................................331
DHCP Snooping........................................................................................................................................................331
Drop DHCP Packets on Snooped VLANs Only....................................................................................................336
Dynamic ARP Inspection.........................................................................................................................................336
Conguring Dynamic ARP Inspection....................................................................................................................337
Source Address Validation............................................................................................................................................ 338
Enabling IP Source Address Validation.................................................................................................................. 338
DHCP MAC Source Address Validation................................................................................................................ 339
Enabling IP+MAC Source Address Validation.......................................................................................................339
Viewing the Number of SAV Dropped Packets................................................................................................... 340
Clearing the Number of SAV Dropped Packets...................................................................................................340
14 Equal Cost Multi-Path (ECMP).................................................................................................................341
ECMP for Flow-Based Anity......................................................................................................................................341
Conguring the Hash Algorithm............................................................................................................................. 341
Enabling Deterministic ECMP Next Hop............................................................................................................... 341
Conguring the Hash Algorithm Seed.................................................................................................................. 342
Link Bundle Monitoring................................................................................................................................................. 342
Managing ECMP Group Paths...............................................................................................................................343
Creating an ECMP Group Bundle.......................................................................................................................... 343
Modifying the ECMP Group Threshold.................................................................................................................343
RTAG7............................................................................................................................................................................. 344
Flow-based Hashing for ECMP................................................................................................................................... 345
10
Contents
15 FIP Snooping............................................................................................................................................348
Fibre Channel over Ethernet........................................................................................................................................ 348
Ensure Robustness in a Converged Ethernet Network............................................................................................ 348
FIP Snooping on Ethernet Bridges..............................................................................................................................350
FIP Snooping in a Switch Stack...................................................................................................................................352
Using FIP Snooping....................................................................................................................................................... 352
FIP Snooping Prerequisites.....................................................................................................................................352
Important Points to Remember............................................................................................................................. 352
Enabling the FCoE Transit Feature........................................................................................................................353
Enable FIP Snooping on VLANs.............................................................................................................................354
Congure the FC-MAP Value................................................................................................................................ 354
Congure a Port for a Bridge-to-Bridge Link.......................................................................................................354
Congure a Port for a Bridge-to-FCF Link...........................................................................................................354
Impact on Other Software Features..................................................................................................................... 354
FIP Snooping Restrictions...................................................................................................................................... 355
Conguring FIP Snooping.......................................................................................................................................355
Displaying FIP Snooping Information...........................................................................................................................356
FCoE Transit Conguration Example........................................................................................................................... 361
16 FIPS Cryptography...................................................................................................................................363
Conguration Tasks....................................................................................................................................................... 363
Preparing the System....................................................................................................................................................363
Enabling FIPS Mode...................................................................................................................................................... 364
Generating Host-Keys...................................................................................................................................................364
Monitoring FIPS Mode Status......................................................................................................................................364
Disabling FIPS Mode..................................................................................................................................................... 365
17 Force10 Resilient Ring Protocol (FRRP)................................................................................................... 366
Protocol Overview.........................................................................................................................................................366
Ring Status............................................................................................................................................................... 367
Multiple FRRP Rings................................................................................................................................................367
Important FRRP Points...........................................................................................................................................368
Important FRRP Concepts.....................................................................................................................................369
Implementing FRRP.......................................................................................................................................................370
FRRP Conguration.......................................................................................................................................................370
Creating the FRRP Group.......................................................................................................................................370
Conguring the Control VLAN................................................................................................................................371
Conguring and Adding the Member VLANs.......................................................................................................372
Setting the FRRP Timers........................................................................................................................................ 373
Clearing the FRRP Counters.................................................................................................................................. 373
Viewing the FRRP Conguration........................................................................................................................... 373
Viewing the FRRP Information...............................................................................................................................373
Troubleshooting FRRP...................................................................................................................................................374
Conguration Checks.............................................................................................................................................. 374
Sample Conguration and Topology............................................................................................................................ 374
Contents
11
FRRP Support on VLT...................................................................................................................................................375
Example Scenario.....................................................................................................................................................376
Important Points to Remember..............................................................................................................................377
18 GARP VLAN Registration Protocol (GVRP).............................................................................................. 378
Important Points to Remember....................................................................................................................................378
Congure GVRP.............................................................................................................................................................379
Related Conguration Tasks................................................................................................................................... 379
Enabling GVRP Globally................................................................................................................................................ 380
Enabling GVRP on a Layer 2 Interface........................................................................................................................380
Congure GVRP Registration...................................................................................................................................... 380
Congure a GARP Timer............................................................................................................................................... 381
RPM Redundancy...........................................................................................................................................................381
19 High Availability (HA)............................................................................................................................... 383
Component Redundancy.............................................................................................................................................. 383
Automatic and Manual Stack Unit Failover.......................................................................................................... 383
Synchronization between Management and Standby Units..............................................................................384
Forcing a Stack Unit Failover................................................................................................................................. 384
Disabling Auto-Reboot............................................................................................................................................ 385
Pre-Conguring a Stack Unit Slot............................................................................................................................... 385
Removing a Provisioned Logical Stack Unit............................................................................................................... 385
Hitless Behavior............................................................................................................................................................. 385
Graceful Restart.............................................................................................................................................................386
Software Resiliency....................................................................................................................................................... 386
Software Component Health Monitoring............................................................................................................. 386
System Health Monitoring......................................................................................................................................386
Failure and Event Logging...................................................................................................................................... 386
Hot-Lock Behavior.........................................................................................................................................................387
20 Internet Group Management Protocol (IGMP).........................................................................................388
IGMP Implementation Information.............................................................................................................................. 388
IGMP Protocol Overview..............................................................................................................................................388
IGMP Version 2........................................................................................................................................................ 388
IGMP Version 3........................................................................................................................................................390
Congure IGMP............................................................................................................................................................. 393
Related Conguration Tasks...................................................................................................................................393
Viewing IGMP Enabled Interfaces............................................................................................................................... 394
Selecting an IGMP Version...........................................................................................................................................394
Viewing IGMP Groups...................................................................................................................................................395
Adjusting Timers............................................................................................................................................................ 395
Adjusting Query and Response Timers................................................................................................................. 395
Preventing a Host from Joining a Group.................................................................................................................... 396
Enabling IGMP Immediate-Leave................................................................................................................................ 399
IGMP Snooping..............................................................................................................................................................399
IGMP Snooping Implementation Information.......................................................................................................399
12
Contents
Conguring IGMP Snooping...................................................................................................................................399
Removing a Group-Port Association.....................................................................................................................400
Disabling Multicast Flooding...................................................................................................................................400
Specifying a Port as Connected to a Multicast Router....................................................................................... 401
Conguring the Switch as Querier.........................................................................................................................401
Fast Convergence after MSTP Topology Changes...................................................................................................402
Egress Interface Selection (EIS) for HTTP and IGMP Applications........................................................................402
Protocol Separation.................................................................................................................................................402
Enabling and Disabling Management Egress Interface Selection...................................................................... 403
Handling of Management Route Conguration................................................................................................... 404
Handling of Switch-Initiated Trac.......................................................................................................................405
Handling of Switch-Destined Trac..................................................................................................................... 405
Handling of Transit Trac (Trac Separation).................................................................................................... 406
Mapping of Management Applications and Trac Type.....................................................................................406
Behavior of Various Applications for Switch-Initiated Trac ............................................................................ 407
Behavior of Various Applications for Switch-Destined Trac .......................................................................... 408
Interworking of EIS With Various Applications.....................................................................................................409
Designating a Multicast Router Interface...................................................................................................................409
21 Interfaces.................................................................................................................................................. 411
Basic Interface Conguration........................................................................................................................................ 411
Advanced Interface Conguration................................................................................................................................ 411
Interface Types................................................................................................................................................................412
View Basic Interface Information..................................................................................................................................412
Resetting an Interface to its Factory Default State................................................................................................... 414
Enabling a Physical Interface........................................................................................................................................ 415
Physical Interfaces......................................................................................................................................................... 415
Conguration Task List for Physical Interfaces.....................................................................................................415
Overview of Layer Modes....................................................................................................................................... 416
Conguring Layer 2 (Data Link) Mode.................................................................................................................. 416
Conguring Layer 2 (Interface) Mode................................................................................................................... 416
Conguring Layer 3 (Network) Mode....................................................................................................................417
Conguring Layer 3 (Interface) Mode................................................................................................................... 417
Automatic recovery of an Err-disabled interface........................................................................................................418
Conguring an automatic recovery for an Err-disabled interface...................................................................... 419
Egress Interface Selection (EIS)...................................................................................................................................419
Important Points to Remember.............................................................................................................................. 419
Conguring EIS........................................................................................................................................................ 420
Management Interfaces................................................................................................................................................420
Conguring Management Interfaces.....................................................................................................................420
Conguring a Management Interface on an Ethernet Port................................................................................422
VLAN Interfaces.............................................................................................................................................................422
Loopback Interfaces...................................................................................................................................................... 423
Null Interfaces................................................................................................................................................................ 424
Port Channel Interfaces................................................................................................................................................ 424
Port Channel Denition and Standards.................................................................................................................424
Contents
13
Port Channel Benets............................................................................................................................................. 424
Port Channel Implementation.................................................................................................................................424
Interfaces in Port Channels.................................................................................................................................... 425
Conguration Tasks for Port Channel Interfaces.................................................................................................425
Creating a Port Channel..........................................................................................................................................426
Adding a Physical Interface to a Port Channel.....................................................................................................426
Reassigning an Interface to a New Port Channel................................................................................................428
Conguring the Minimum Oper Up Links in a Port Channel.............................................................................. 428
Adding or Removing a Port Channel from a VLAN............................................................................................. 429
Assigning an IP Address to a Port Channel.......................................................................................................... 430
Deleting or Disabling a Port Channel.....................................................................................................................430
Load Balancing Through Port Channels................................................................................................................430
Changing the Hash Algorithm.................................................................................................................................431
Bulk Conguration.......................................................................................................................................................... 431
Interface Range........................................................................................................................................................ 431
Bulk Conguration Examples..................................................................................................................................432
Dening Interface Range Macros................................................................................................................................ 433
Dene the Interface Range.................................................................................................................................... 433
Choosing an Interface-Range Macro.................................................................................................................... 434
Monitoring and Maintaining Interfaces........................................................................................................................434
Maintenance Using TDR.........................................................................................................................................435
Non Dell-Qualied Transceivers................................................................................................................................... 435
Splitting 40G Ports without Reload.............................................................................................................................436
Splitting QSFP Ports to SFP+ Ports............................................................................................................................437
Converting a QSFP or QSFP+ Port to an SFP or SFP+ Port..................................................................................438
Important Points to Remember............................................................................................................................. 439
Example Scenarios...................................................................................................................................................439
Link Dampening..............................................................................................................................................................440
Important Points to Remember.............................................................................................................................. 441
Conguration Example of Link Dampening........................................................................................................... 441
Enabling Link Dampening........................................................................................................................................443
Link Bundle Monitoring................................................................................................................................................. 444
Using Ethernet Pause Frames for Flow Control........................................................................................................ 445
Enabling Pause Frames...........................................................................................................................................445
Congure the MTU Size on an Interface....................................................................................................................446
Port-Pipes.......................................................................................................................................................................447
Auto-Negotiation on Ethernet Interfaces................................................................................................................... 447
Setting the speed to 10/100/1000 Mbps on SFP-1G-T transceiver.................................................................. 447
Setting the Speed of Ethernet Interfaces............................................................................................................ 447
Set Auto-Negotiation Options................................................................................................................................449
View Advanced Interface Information.........................................................................................................................449
Conguring the Interface Sampling Size.............................................................................................................. 450
Conguring the Trac Sampling Size Globally........................................................................................................... 451
Dynamic Counters......................................................................................................................................................... 453
Clearing Interface Counters................................................................................................................................... 453
14
Contents
Discard Counters........................................................................................................................................................... 454
Display discard counters......................................................................................................................................... 454
22 Internet Protocol Security (IPSec).......................................................................................................... 456
Conguring IPSec .........................................................................................................................................................456
23 IPv4 Routing............................................................................................................................................458
IP Addresses...................................................................................................................................................................459
Implementation Information....................................................................................................................................459
Conguration Tasks for IP Addresses......................................................................................................................... 459
Assigning IP Addresses to an Interface.......................................................................................................................459
Conguring Static Routes............................................................................................................................................ 460
Congure Static Routes for the Management Interface...........................................................................................461
IPv4 Path MTU Discovery Overview.......................................................................................................................... 462
Packet handling during MTU mismatch................................................................................................................462
Using the Congured Source IP Address in ICMP Messages..................................................................................462
Conguring the ICMP Source Interface............................................................................................................... 462
Conguring the Duration to Establish a TCP Connection........................................................................................ 463
Enabling Directed Broadcast........................................................................................................................................ 463
Resolution of Host Names............................................................................................................................................464
Enabling Dynamic Resolution of Host Names............................................................................................................464
Specifying the Local System Domain and a List of Domains................................................................................... 464
Conguring DNS with Traceroute............................................................................................................................... 465
ARP................................................................................................................................................................................. 466
Conguration Tasks for ARP........................................................................................................................................ 466
Conguring Static ARP Entries....................................................................................................................................466
Enabling Proxy ARP.......................................................................................................................................................467
Clearing ARP Cache...................................................................................................................................................... 467
ARP Learning via Gratuitous ARP................................................................................................................................467
Enabling ARP Learning via Gratuitous ARP................................................................................................................467
ARP Learning via ARP Request................................................................................................................................... 468
Conguring ARP Retries...............................................................................................................................................468
ICMP............................................................................................................................................................................... 469
Conguration Tasks for ICMP......................................................................................................................................469
Enabling ICMP Unreachable Messages...................................................................................................................... 469
ICMP Redirects..............................................................................................................................................................469
UDP Helper......................................................................................................................................................................471
Congure UDP Helper............................................................................................................................................. 471
Important Points to Remember.............................................................................................................................. 471
Enabling UDP Helper......................................................................................................................................................471
Conguring a Broadcast Address................................................................................................................................. 471
Congurations Using UDP Helper................................................................................................................................472
UDP Helper with Broadcast-All Addresses.................................................................................................................472
UDP Helper with Subnet Broadcast Addresses.........................................................................................................473
UDP Helper with Congured Broadcast Addresses.................................................................................................. 473
UDP Helper with No Congured Broadcast Addresses............................................................................................ 474
Contents
15
Troubleshooting UDP Helper........................................................................................................................................ 474
24 IPv6 Routing............................................................................................................................................ 475
Protocol Overview......................................................................................................................................................... 475
Extended Address Space........................................................................................................................................476
Stateless Autoconguration....................................................................................................................................476
IPv6 Headers............................................................................................................................................................476
IPv6 Header Fields...................................................................................................................................................477
Extension Header Fields..........................................................................................................................................479
Addressing................................................................................................................................................................ 480
Implementing IPv6 with Dell EMC Networking OS....................................................................................................481
ICMPv6...........................................................................................................................................................................482
Path MTU discovery......................................................................................................................................................483
IPv6 Neighbor Discovery.............................................................................................................................................. 483
IPv6 Neighbor Discovery of MTU Packets...........................................................................................................484
Conguration Task List for IPv6 RDNSS.................................................................................................................... 484
Conguring the IPv6 Recursive DNS Server....................................................................................................... 484
Debugging IPv6 RDNSS Information Sent to the Host .....................................................................................485
Displaying IPv6 RDNSS Information......................................................................................................................486
Secure Shell (SSH) Over an IPv6 Transport.............................................................................................................. 486
Conguration Tasks for IPv6........................................................................................................................................ 487
Adjusting Your CAM-Prole.................................................................................................................................... 487
Assigning an IPv6 Address to an Interface...........................................................................................................488
Assigning a Static IPv6 Route................................................................................................................................488
Conguring Telnet with IPv6..................................................................................................................................489
SNMP over IPv6......................................................................................................................................................489
Displaying IPv6 Information....................................................................................................................................489
Displaying an IPv6 Interface Information.............................................................................................................. 490
Showing IPv6 Routes..............................................................................................................................................490
Showing the Running-Conguration for an Interface.........................................................................................492
Clearing IPv6 Routes...............................................................................................................................................492
Disabling ND Entry Timeout................................................................................................................................... 492
Conguring IPv6 RA Guard.......................................................................................................................................... 493
Conguring IPv6 RA Guard on an Interface.........................................................................................................494
Monitoring IPv6 RA Guard..................................................................................................................................... 495
25 iSCSI Optimization.................................................................................................................................. 496
iSCSI Optimization Overview.......................................................................................................................................496
Monitoring iSCSI Trac Flows...............................................................................................................................498
Application of Quality of Service to iSCSI Trac Flows..................................................................................... 498
Information Monitored in iSCSI Trac Flows.......................................................................................................498
Detection and Auto-Conguration for Dell EqualLogic Arrays...........................................................................499
Conguring Detection and Ports for Dell Compellent Arrays.............................................................................499
Synchronizing iSCSI Sessions Learned on VLT-Lags with VLT-Peer.................................................................500
Enable and Disable iSCSI Optimization.................................................................................................................500
Default iSCSI Optimization Values............................................................................................................................... 501
16
Contents
iSCSI Optimization Prerequisites..................................................................................................................................501
Conguring iSCSI Optimization.................................................................................................................................... 501
Displaying iSCSI Optimization Information................................................................................................................. 503
26 Intermediate System to Intermediate System.......................................................................................... 505
IS-IS Protocol Overview............................................................................................................................................... 505
IS-IS Addressing............................................................................................................................................................ 505
Multi-Topology IS-IS...................................................................................................................................................... 506
Transition Mode....................................................................................................................................................... 506
Interface Support.....................................................................................................................................................507
Adjacencies...............................................................................................................................................................507
Graceful Restart.............................................................................................................................................................507
Timers........................................................................................................................................................................507
Implementation Information..........................................................................................................................................507
Conguration Information.............................................................................................................................................508
Conguration Tasks for IS-IS................................................................................................................................. 509
Conguring the Distance of a Route......................................................................................................................516
Changing the IS-Type............................................................................................................................................... 517
Redistributing IPv4 Routes......................................................................................................................................519
Redistributing IPv6 Routes.....................................................................................................................................520
Conguring Authentication Passwords..................................................................................................................521
Setting the Overload Bit..........................................................................................................................................521
Debugging IS-IS....................................................................................................................................................... 522
IS-IS Metric Styles.........................................................................................................................................................523
Congure Metric Values................................................................................................................................................523
Maximum Values in the Routing Table.................................................................................................................. 523
Change the IS-IS Metric Style in One Level Only................................................................................................523
Leaks from One Level to Another..........................................................................................................................525
Sample Congurations..................................................................................................................................................526
27 Link Aggregation Control Protocol (LACP)...............................................................................................528
Introduction to Dynamic LAGs and LACP.................................................................................................................. 528
Important Points to Remember............................................................................................................................. 528
LACP Modes............................................................................................................................................................ 529
Conguring LACP Commands...............................................................................................................................529
LACP Conguration Tasks............................................................................................................................................530
Creating a LAG.........................................................................................................................................................530
Conguring the LAG Interfaces as Dynamic........................................................................................................530
Setting the LACP Long Timeout............................................................................................................................ 531
Monitoring and Debugging LACP...........................................................................................................................531
Shared LAG State Tracking.......................................................................................................................................... 532
Conguring Shared LAG State Tracking...............................................................................................................532
Important Points about Shared LAG State Tracking...........................................................................................534
LACP Basic Conguration Example............................................................................................................................ 534
Congure a LAG on ALPHA................................................................................................................................... 534
Contents
17
28 Layer 2.....................................................................................................................................................543
Manage the MAC Address Table................................................................................................................................. 543
Clearing the MAC Address Table........................................................................................................................... 543
Setting the Aging Time for Dynamic Entries........................................................................................................543
Conguring a Static MAC Address........................................................................................................................544
Displaying the MAC Address Table........................................................................................................................ 544
MAC Learning Limit.......................................................................................................................................................544
Setting the MAC Learning Limit............................................................................................................................ 545
mac learning-limit Dynamic.................................................................................................................................... 545
mac learning-limit mac-address-sticky................................................................................................................. 545
mac learning-limit station-move............................................................................................................................ 546
mac learning-limit no-station-move...................................................................................................................... 546
Learning Limit Violation Actions.............................................................................................................................546
Setting Station Move Violation Actions................................................................................................................ 547
Recovering from Learning Limit and Station Move Violations........................................................................... 547
Enabling port security............................................................................................................................................. 548
NIC Teaming................................................................................................................................................................... 548
Congure Redundant Pairs.......................................................................................................................................... 549
Important Points about Conguring Redundant Pairs.........................................................................................551
Far-End Failure Detection.............................................................................................................................................552
FEFD State Changes...............................................................................................................................................553
Conguring FEFD.................................................................................................................................................... 554
Enabling FEFD on an Interface.............................................................................................................................. 554
Debugging FEFD......................................................................................................................................................555
29 Link Layer Discovery Protocol (LLDP)..................................................................................................... 557
802.1AB (LLDP) Overview............................................................................................................................................557
Protocol Data Units................................................................................................................................................. 557
Optional TLVs.................................................................................................................................................................558
Management TLVs.................................................................................................................................................. 558
TIA-1057 (LLDP-MED) Overview................................................................................................................................ 560
TIA Organizationally Specic TLVs........................................................................................................................560
Congure LLDP............................................................................................................................................................. 564
Related Conguration Tasks...................................................................................................................................564
Important Points to Remember............................................................................................................................. 564
LLDP Compatibility..................................................................................................................................................565
CONFIGURATION versus INTERFACE Congurations............................................................................................565
Enabling LLDP................................................................................................................................................................565
Disabling and Undoing LLDP..................................................................................................................................566
Enabling LLDP on Management Ports........................................................................................................................566
Disabling and Undoing LLDP on Management Ports..........................................................................................566
Advertising TLVs............................................................................................................................................................566
Storing and Viewing Unrecognized LLDP TLVs.........................................................................................................568
Reserved Unrecognized LLDP TLVs..................................................................................................................... 568
Organizational Specic Unrecognized LLDP TLVs..............................................................................................568
18
Contents
Viewing Unrecognized LLDP TLVs........................................................................................................................568
Viewing the LLDP Conguration................................................................................................................................. 569
Viewing Information Advertised by Adjacent LLDP Neighbors................................................................................569
Examples of Viewing Information Advertised by Neighbors.............................................................................. 569
Conguring LLDPDU Intervals......................................................................................................................................571
Conguring LLDP Notication Interval....................................................................................................................... 572
Conguring LLDP Notication Interval....................................................................................................................... 572
Conguring Transmit and Receive Mode....................................................................................................................572
Conguring the Time to Live Value..............................................................................................................................573
Debugging LLDP............................................................................................................................................................ 574
Relevant Management Objects....................................................................................................................................575
30 Microsoft Network Load Balancing..........................................................................................................580
NLB Unicast Mode Scenario........................................................................................................................................580
NLB Multicast Mode Scenario.....................................................................................................................................580
Limitations of the NLB Feature.....................................................................................................................................581
Microsoft Clustering.......................................................................................................................................................581
Enable and Disable VLAN Flooding ............................................................................................................................. 581
Conguring a Switch for NLB ......................................................................................................................................581
Enabling a Switch for Multicast NLB.................................................................................................................... 582
31 Multicast Source Discovery Protocol (MSDP)..........................................................................................583
Protocol Overview.........................................................................................................................................................583
Anycast RP.....................................................................................................................................................................584
Implementation Information......................................................................................................................................... 585
Congure Multicast Source Discovery Protocol........................................................................................................585
Related Conguration Tasks...................................................................................................................................585
Enable MSDP.................................................................................................................................................................589
Manage the Source-Active Cache..............................................................................................................................590
Viewing the Source-Active Cache........................................................................................................................ 590
Limiting the Source-Active Cache.........................................................................................................................590
Clearing the Source-Active Cache.........................................................................................................................591
Enabling the Rejected Source-Active Cache........................................................................................................591
Accept Source-Active Messages that Fail the RFP Check...................................................................................... 591
Specifying Source-Active Messages...........................................................................................................................594
Limiting the Source-Active Messages from a Peer...................................................................................................595
Preventing MSDP from Caching a Local Source.......................................................................................................595
Preventing MSDP from Caching a Remote Source.................................................................................................. 596
Preventing MSDP from Advertising a Local Source................................................................................................. 596
Logging Changes in Peership States...........................................................................................................................597
Terminating a Peership..................................................................................................................................................597
Clearing Peer Statistics.................................................................................................................................................598
Debugging MSDP..........................................................................................................................................................598
MSDP with Anycast RP................................................................................................................................................599
Conguring Anycast RP............................................................................................................................................... 600
Reducing Source-Active Message Flooding......................................................................................................... 601
Contents
19
Specifying the RP Address Used in SA Messages...............................................................................................601
MSDP Sample Congurations......................................................................................................................................603
35 Multicast Listener Discovery Protocol..................................................................................................... 606
MLD Version 1................................................................................................................................................................ 606
MLD Querier Router......................................................................................................................................................606
Joining a Multicast Group............................................................................................................................................. 607
Leaving a Multicast Group............................................................................................................................................607
MLD version 2................................................................................................................................................................607
MLD timers.....................................................................................................................................................................609
Reducing Host Response Burstiness.....................................................................................................................610
Conguring MLD Version.............................................................................................................................................. 610
Clearing MLD groups..................................................................................................................................................... 610
Debugging MLD..............................................................................................................................................................610
Explicit Tracking..............................................................................................................................................................610
Reducing Leave Latency................................................................................................................................................ 611
Displaying MLD groups table......................................................................................................................................... 611
Displaying MLD Interfaces..............................................................................................................................................611
33 Multiple Spanning Tree Protocol (MSTP)................................................................................................. 612
Protocol Overview..........................................................................................................................................................612
Spanning Tree Variations............................................................................................................................................... 613
Implementation Information.................................................................................................................................... 613
Congure Multiple Spanning Tree Protocol.................................................................................................................613
Related Conguration Tasks....................................................................................................................................614
Enable Multiple Spanning Tree Globally....................................................................................................................... 614
Adding and Removing Interfaces..................................................................................................................................614
Creating Multiple Spanning Tree Instances.................................................................................................................615
Inuencing MSTP Root Selection................................................................................................................................ 616
Interoperate with Non-Dell Bridges..............................................................................................................................616
Changing the Region Name or Revision...................................................................................................................... 617
Modifying Global Parameters........................................................................................................................................617
Modifying the Interface Parameters............................................................................................................................ 618
Setting STP path cost as constant..............................................................................................................................619
Conguring an EdgePort.............................................................................................................................................. 620
Flush MAC Addresses after a Topology Change....................................................................................................... 620
MSTP Sample Congurations.......................................................................................................................................621
Router 1 Running-CongurationRouter 2 Running-CongurationRouter 3 Running-
CongurationSFTOS Example Running-Conguration........................................................................................621
Debugging and Verifying MSTP Congurations........................................................................................................ 624
34 Multicast Features................................................................................................................................... 626
Enabling IP Multicast.....................................................................................................................................................626
Implementation Information..........................................................................................................................................626
Multicast Policies........................................................................................................................................................... 627
IPv4 Multicast Policies............................................................................................................................................ 627
20
Contents
/