Catalyst 3560CX-12PC-S Switch

Cisco Catalyst 3560CX-12PC-S Switch , Catalyst 2960-CX Series Switches, Catalyst 2960CX-8PC-L Switch , Catalyst 2960CX-8TC-L Switch , Catalyst 3560-CX Series Switches, Catalyst 3560CX-12PD-S Switch , Catalyst 3560CX-12TC-S Switch , Catalyst 3560CX-8PC-S Switch , Catalyst 3560CX-8PT-S Switch , Catalyst 3560CX-8TC-S Switch , Catalyst 3560CX-8XPD-S Switch Configuration Guide

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Consolidated Platform Configuration Guide, Cisco IOS Release 15.2(7)Ex
(Catalyst 3560-CX and 2960-CX Switches)
First Published: 2019-03-27
Last Modified: 2020-09-15
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CONTENTS
Interface and Hardware 85
PART I
Configuring Interface Characteristics 1
CHAPTER 1
Information About Configuring Interface Characteristics 1
Interface Types 1
Port-Based VLANs 1
Switch Ports 2
Switch Virtual Interfaces 2
EtherChannel Port Groups 3
Power over Ethernet Ports 4
Using the Switch USB Ports 4
USB Mini-Type B Console Port 4
USB Type A Ports 5
Interface Connections 5
Interface Configuration Mode 6
Default Ethernet Interface Configuration 6
Interface Speed and Duplex Mode 7
Speed and Duplex Configuration Guidelines 7
IEEE 802.3x Flow Control 8
How to Configure Interface Characteristics 9
Configuring Interfaces 9
Adding a Description for an Interface 10
Configuring a Range of Interfaces 11
Configuring and Using Interface Range Macros 12
Configuring Ethernet Interfaces 14
Setting the Interface Speed and Duplex Parameters 14
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Configuring IEEE 802.3x Flow Control 15
Configuring SVI Autostate Exclude 16
Shutting Down and Restarting the Interface 17
Configuring the Console Media Type 19
Configuring the USB Inactivity Timeout 20
Monitoring Interface Characteristics 21
Monitoring Interface Status 21
Clearing and Resetting Interfaces and Counters 22
Configuration Examples for Interface Characteristics 22
Configuring a Range of Interfaces: Examples 22
Configuring and Using Interface Range Macros: Examples 23
Setting Interface Speed and Duplex Mode: Example 23
Configuring the Console Media Type: Example 23
Configuring the USB Inactivity Timeout: Example 24
Configuring Auto-MDIX 25
CHAPTER 2
Prerequisites for Auto-MDIX 25
Restrictions for Auto-MDIX 25
Information About Configuring Auto-MDIX 25
Auto-MDIX on an Interface 25
How to Configure Auto-MDIX 26
Configuring Auto-MDIX on an Interface 26
Example for Configuring Auto-MDIX 27
Configuring LLDP, LLDP-MED, and Wired Location Service 29
CHAPTER 3
Information About LLDP, LLDP-MED, and Wired Location Service 29
LLDP 29
LLDP Supported TLVs 29
LLDP and Cisco Medianet 30
LLDP-MED 30
LLDP-MED Supported TLVs 30
Wired Location Service 31
Default LLDP Configuration 32
Restrictions for LLDP 33
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How to Configure LLDP, LLDP-MED, and Wired Location Service 33
Enabling LLDP 33
Configuring LLDP Characteristics 35
Configuring LLDP-MED TLVs 37
Configuring Network-Policy TLV 38
Configuring Location TLV and Wired Location Service 40
Enabling Wired Location Service on the Device 43
Configuration Examples for LLDP, LLDP-MED, and Wired Location Service 44
Configuring Network-Policy TLV: Examples 44
Monitoring and Maintaining LLDP, LLDP-MED, and Wired Location Service 45
Configuring MultiGigabit Ports on WS-C3560CX-8PD-S 47
CHAPTER 4
Finding Feature Information 47
Overview of MultiGigabit Ports 47
Restrictions for MultiGigabit Ports 48
Supported Cable Types and Maximum Length 48
Setting the Interface Speed 48
Examples: Setting the Interface Speed 49
Configuring System MTU 51
CHAPTER 5
Information About the MTU 51
System MTU Guidelines 51
How to Configure MTU 51
Configuring the System MTU 51
Configuration Examples for System MTU 52
Configuring Boot Fast 53
CHAPTER 6
Configuring Boot Fast on the switch 53
Enabling Boot Fast 53
Disabling Boot Fast 54
Configuring Power over Ethernet 57
CHAPTER 7
Information About PoE 57
Power over Ethernet Ports 57
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PoE and PoE Pass-Through Ports on Catalyst WS-C3560CX-8PT-S 57
Example: Configuring PoE and PoE Pass-Through Ports on WS-C3560CX-8PT-S 58
Supported Protocols and Standards 59
Powered-Device Detection and Initial Power Allocation 59
Power Management Modes 60
How to Configure PoE 63
Configuring a Power Management Mode on a PoE Port 63
Configuring PoE and PoE Pass-Through Ports on Catalyst WS-C3560CX-8PT-S 65
Perpetual POE 65
Fast POE 65
Configuring Persistent and Fast PoE 66
Budgeting Power for Devices Connected to a PoE Port 67
Budgeting Power to All PoE ports 67
Budgeting Power to a Specific PoE Port 68
Configuring Power Policing 69
Monitoring Power Status 72
Configuration Examples for Configuring PoE 72
Budgeting Power: Example 72
Configuring 2-event Classification 73
CHAPTER 8
Information about 2-event Classification 73
Configuring 2-event Classification 73
Example: Configuring 2-Event Classification 74
Configuring EEE 75
CHAPTER 9
Restrictions for EEE 75
Information About EEE 75
EEE Overview 75
Default EEE Configuration 75
How to Configure EEE 75
Enabling or Disabling EEE 76
Monitoring EEE 77
Configuration Examples for Configuring EEE 77
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IP Multicast Routing 79
PART II
IP Multicast Routing Technology Overview 81
CHAPTER 10
Information About IP Multicast Technology 81
Role of IP Multicast in Information Delivery 81
IP Multicast Routing Protocols 81
Multicast Group Transmission Scheme 81
IP Multicast Boundary 82
IP Multicast Group Addressing 83
IP Class D Addresses 83
IP Multicast Address Scoping 83
Layer 2 Multicast Addresses 85
IP Multicast Delivery Modes 85
Source Specific Multicast 85
Configuring Basic IP Multicast Routing 87
CHAPTER 11
Prerequisites for Basic IP Multicast Routing 87
Restrictions for Basic IP Multicast Routing 87
Information About Basic IP Multicast Routing 87
Default IP Multicast Routing Configuration 88
sdr Listener Support 88
How to Configure Basic IP Multicast Routing 89
Configuring Basic IP Multicast Routing 89
Configuring Optional IP Multicast Routing Features 91
Defining the IP Multicast Boundary 91
Configuring Multicast VRFs 92
Advertising Multicast Multimedia Sessions Using SAP Listener 94
Monitoring and Maintaining Basic IP Multicast Routing 96
Clearing Caches, Tables, and Databases 96
Displaying System and Network Statistics 96
Configuring IGMP 99
CHAPTER 12
Prerequisites for IGMP 99
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Restrictions for Configuring IGMP 99
Information About IGMP 100
Role of the Internet Group Management Protocol 100
IGMP Multicast Addresses 100
IGMP Versions 100
IGMP Version 1 101
IGMP Version 2 101
IGMP Version 3 101
IGMPv3 Host Signalling 101
IGMP Versions Differences 101
IGMP Join and Leave Process 103
IGMP Join Process 103
IGMP Leave Process 104
Default IGMP Configuration 104
How to Configure IGMP 105
Configuring the Device as a Member of a Group 105
Controlling Access to IP Multicast Group 106
Changing the IGMP Version 108
Modifying the IGMP Host-Query Message Interval 110
Changing the IGMP Query Timeout for IGMPv2 111
Changing the Maximum Query Response Time for IGMPv2 113
Configuring the Device as a Statically Connected Member 114
Monitoring IGMP 115
Configuration Examples for IGMP 116
Example: Configuring the Device as a Member of a Multicast Group 116
Example: Controlling Access to IP Multicast Groups 116
Configuring IGMP Snooping and Multicast VLAN Registration 119
CHAPTER 13
Prerequisites for Configuring IGMP Snooping and MVR 119
Prerequisites for IGMP Snooping 119
Prerequisites for MVR 120
Restrictions for Configuring IGMP Snooping and MVR 120
Restrictions for IGMP Snooping 120
Restrictions for MVR 120
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Information About IGMP Snooping and MVR 121
IGMP Snooping 121
IGMP Versions 122
Joining a Multicast Group 122
Leaving a Multicast Group 124
Immediate Leave 125
IGMP Configurable-Leave Timer 125
IGMP Report Suppression 125
Default IGMP Snooping Configuration 125
Multicast VLAN Registration 126
MVR and IGMP 126
Modes of Operation 126
MVR in a Multicast Television Application 127
Default MVR Configuration 129
IGMP Filtering and Throttling 129
Default IGMP Filtering and Throttling Configuration 130
How to Configure IGMP Snooping and MVR 130
Enabling or Disabling IGMP Snooping on a Device 130
Enabling or Disabling IGMP Snooping on a VLAN Interface 131
Setting the Snooping Method 132
Configuring a Multicast Router Port 134
Configuring a Host Statically to Join a Group 135
Enabling IGMP Immediate Leave 137
Configuring the IGMP Leave Timer 138
Configuring TCN-Related Commands 139
Controlling the Multicast Flooding Time After a TCN Event 139
Recovering from Flood Mode 141
Disabling Multicast Flooding During a TCN Event 142
Configuring the IGMP Snooping Querier 143
Disabling IGMP Report Suppression 145
Configuring MVR Global Parameters 146
Configuring MVR Interfaces 149
Configuring IGMP Profiles 151
Applying IGMP Profiles 153
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Setting the Maximum Number of IGMP Groups 154
Configuring the IGMP Throttling Action 156
Monitoring IGMP Snooping and MVR 158
Monitoring IGMP Snooping Information 158
Monitoring MVR 159
Monitoring IGMP Filtering and Throttling Configuration 160
Configuration Examples for IGMP Snooping and MVR 161
Example: Configuring IGMP Snooping Using CGMP Packets 161
Example: Enabling a Static Connection to a Multicast Router 161
Example: Configuring a Host Statically to Join a Group 161
Example: Enabling IGMP Immediate Leave 161
Example: Setting the IGMP Snooping Querier Source Address 161
Example: Setting the IGMP Snooping Querier Maximum Response Time 161
Example: Setting the IGMP Snooping Querier Timeout 162
Example: Setting the IGMP Snooping Querier Feature 162
Example: Configuring IGMP Profiles 162
Example: Applying IGMP Profile 162
Example: Setting the Maximum Number of IGMP Groups 162
Example: Configuring MVR Global Parameters 163
Example: Configuring MVR Interfaces 163
Configuring CGMP 165
CHAPTER 14
Finding Feature Information 165
Prerequisites for Configuring CGMP 165
Restrictions for CGMP 165
Information About CGMP 166
Enabling CGMP Server Support 166
Monitoring CGMP 168
Configuring Protocol Independent Multicast (PIM) 171
CHAPTER 15
Prerequisites for PIM 171
Restrictions for PIM 172
PIMv1 and PIMv2 Interoperability 172
Restrictions for Configuring PIM Stub Routing 172
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Restrictions for Configuring Auto-RP and BSR 173
Information About PIM 174
Protocol Independent Multicast 174
PIM Dense Mode 174
PIM Sparse Mode 175
Sparse-Dense Mode 175
PIM Versions 176
PIM Stub Routing 176
IGMP Helper 177
Rendezvous Points 178
Auto-RP 178
Sparse-Dense Mode for Auto-RP 179
Bootstrap Router 179
PIM Domain Border 180
Multicast Forwarding 180
Multicast Distribution Source Tree 180
Multicast Distribution Shared Tree 181
Source Tree Advantage 182
Shared Tree Advantage 182
PIM Shared Tree and Source Tree 183
Reverse Path Forwarding 184
RPF Check 185
Default PIM Routing Configuration 186
How to Configure PIM 186
Enabling PIM Stub Routing 186
Configuring a Rendezvous Point 188
Manually Assigning an RP to Multicast Groups 188
Setting Up Auto-RP in a New Internetwork 190
Adding Auto-RP to an Existing Sparse-Mode Cloud 193
Configuring Sparse Mode with a Single Static RP(CLI) 196
Preventing Join Messages to False RPs 198
Filtering Incoming RP Announcement Messages 198
Configuring PIMv2 BSR 200
Defining the PIM Domain Border 200
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Defining the IP Multicast Boundary 202
Configuring Candidate BSRs 203
Configuring the Candidate RPs 205
Delaying the Use of PIM Shortest-Path Tree 207
Modifying the PIM Router-Query Message Interval 209
Verifying PIM Operations 210
Verifying IP Multicast Operation in a PIM-SM or a PIM-SSM Network 210
Using PIM-Enabled Routers to Test IP Multicast Reachability 216
Monitoring and Troubleshooting PIM 218
Monitoring PIM Information 218
Monitoring the RP Mapping and BSR Information 218
Troubleshooting PIMv1 and PIMv2 Interoperability Problems 218
Configuration Examples for PIM 219
Example: Enabling PIM Stub Routing 219
Example: Verifying PIM Stub Routing 219
Example: Manually Assigning an RP to Multicast Groups 219
Example: Configuring Auto-RP 220
Example: Defining the IP Multicast Boundary to Deny Auto-RP Information 220
Example: Filtering Incoming RP Announcement Messages 220
Example: Preventing Join Messages to False RPs 220
Example: Configuring Candidate BSRs 221
Example: Configuring Candidate RPs 221
Configuring HSRP Aware PIM 223
CHAPTER 16
HSRP Aware PIM 223
Restrictions for HSRP Aware PIM 223
Information About HSRP Aware PIM 223
HSRP 223
HSRP Aware PIM 224
How to Configure HSRP Aware PIM 225
Configuring an HSRP Group on an Interface 225
Configuring PIM Redundancy 227
Configuration Examples for HSRP Aware PIM 228
Example: Configuring an HSRP Group on an Interface 228
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Example: Configuring PIM Redundancy 228
Configuring VRRP Aware PIM 229
CHAPTER 17
VRRP Aware PIM 229
Restrictions for VRRP Aware PIM 229
Information About VRRP Aware PIM 229
Overview of VRRP Aware PIM 229
How to Configure VRRP Aware PIM 230
Configuring VRRP Aware PIM 230
Configuration Examples for VRRP Aware PIM 232
Example: VRRP Aware PIM 232
Configuring SSM 233
CHAPTER 18
Prerequisites for Configuring SSM 233
Restrictions for Configuring SSM 233
Information About SSM and SSM Mapping 235
SSM Components 235
How SSM Differs from Internet Standard Multicast 235
SSM Operations 236
IGMPv3 Host Signaling 236
Benefits of 236
SSM Mapping Overview 238
Static SSM Mapping 238
DNS-Based SSM Mapping 238
SSM Mapping Benefits 240
How to Configure SSM and SSM Mapping 240
Configuring SSM 240
Configuring SSM Mapping 242
Configuring Static SSM Mapping 242
Configuring DNS-Based SSM Mapping (CLI) 243
Configuring Static Traffic Forwarding with SSM Mapping 245
Verifying SSM Mapping Configuration and Operation 246
Monitoring SSM and SSM Mapping 248
Monitoring SSM 248
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Monitoring SSM Mapping 249
Configuration Examples for SSM and SSM Mapping 249
SSM with IGMPv3 Example 249
SSM Filtering Example 250
SSM Mapping Example 250
DNS Server Configuration Example 253
Configuring MSDP 255
CHAPTER 19
Prerequisites for MSDP 255
Information About Multicast Source Discovery Protocol 255
255
MSDP Benefits 257
Default MSDP Peers 257
MSDP Mesh Groups 258
Benefits of MSDP Mesh Groups 259
SA Origination Filters 259
Use of Outgoing Filter Lists in MSDP 259
Use of Incoming Filter Lists in MSDP 260
TTL Thresholds in MSDP 261
MSDP Message Types 261
SA Messages 261
SA Request Messages 262
SA Response Messages 262
Keepalive Messages 262
Default MSDP Configuration 262
How to Configure MSDP 262
Configuring a Default MSDP Peer 262
Caching Source-Active State 264
Requesting Source Information from an MSDP Peer 265
Controlling Source Information that Your Switch Originates 266
Redistributing Sources 267
Filtering Source-Active Request Messages 269
Controlling Source Information that Your Switch Forwards 270
Using a Filter 270
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Using TTL to Limit the Multicast Data Sent in SA Messages 272
Controlling Source Information that Your Switch Receives 273
Configuring an MSDP Mesh Group 275
Shutting Down an MSDP Peer 277
Including a Bordering PIM Dense-Mode Region in MSDP 278
Configuring an Originating Address other than the RP Address 279
Monitoring and Maintaining MSDP 280
Monitoring MSDP 280
Clearing MSDP Connections Statistics and SA Cache Entries 283
Configuration Examples for Configuring MSDP 284
Configuring a Default MSDP Peer: Example 284
Caching Source-Active State: Example 284
Requesting Source Information from an MSDP Peer: Example 284
Controlling Source Information that Your Switch Originates: Example 285
Controlling Source Information that Your Switch Forwards: Example 285
Controlling Source Information that Your Switch Receives: Example 285
Example: Configuring MSDP Mesh Groups 285
Requesting Source Information from an MSDP Peer: Example 286
IPv6 287
PART III
Configuring MLD Snooping 289
CHAPTER 20
Finding Feature Information 289
Information About Configuring IPv6 MLD Snooping 289
Understanding MLD Snooping 289
MLD Messages 290
MLD Queries 290
Multicast Client Aging Robustness 291
Multicast Router Discovery 291
MLD Reports 291
MLD Done Messages and Immediate-Leave 292
Topology Change Notification Processing 292
MLD Snooping in Switch Stacks 292
How to Configure IPv6 MLD Snooping 293
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Default MLD Snooping Configuration 293
MLD Snooping Configuration Guidelines 293
Enabling or Disabling MLD Snooping on the Switch 294
Enabling or Disabling MLD Snooping on a VLAN 295
Configuring a Static Multicast Group 296
Configuring a Multicast Router Port 297
Enabling MLD Immediate Leave 297
Configuring MLD Snooping Queries 298
Disabling MLD Listener Message Suppression 300
Displaying MLD Snooping Information 300
Configuration Examples for Configuring MLD Snooping 301
Configuring a Static Multicast Group: Example 301
Configuring a Multicast Router Port: Example 302
Enabling MLD Immediate Leave: Example 302
Configuring MLD Snooping Queries: Example 302
Configuring IPv6 Unicast Routing 303
CHAPTER 21
Finding Feature Information 303
Information About Configuring IPv6 Unicast Routing 303
Understanding IPv6 303
IPv6 Addresses 304
Supported IPv6 Unicast Routing Features 304
Unsupported IPv6 Unicast Routing Features 309
IPv6 Feature Limitations 309
Configuring IPv6 309
Default IPv6 Configuration 309
Configuring IPv6 Addressing and Enabling IPv6 Routing 310
Configuring First Hop Security in IPv6 312
Configuring Default Router Preference 323
Configuring IPv6 ICMP Rate Limiting 324
Configuring Cisco Express Forwarding and distributed Cisco Express Forwarding for IPv6 325
Configuring Static Routing for IPv6 325
Configuring RIP for IPv6 327
Configuring OSPF for IPv6 329
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Tuning LSA and SPF Timers for OSPFv3 Fast Convergence 332
Configuring LSA and SPF Throttling for OSPFv3 Fast Convergence 333
Configuring EIGRP for IPv6 334
Configuring HSRP for IPv6 334
Enabling HSRP Version 2 334
Enabling an HSRP Group for IPv6 335
Configuring Multi-VRF CE 337
Default Multi-VRF CE Configuration 337
Configuring VRFs 337
Configuring VRF-Aware Services 339
Configuring VRF-Aware Services for Neighbor Discovery 339
Configuring VRF-Aware Services for PING 340
Configuring VRF-Aware Services for HSRP 340
Configuring VRF-Aware Services for Traceroute 341
Configuring VRF-Aware Services for FTP and TFTP 341
Configuring a VPN Routing Session 342
Configuring BGP PE to CE Routing Sessions 344
Multi-VRF CE Configuration Example 345
Displaying Multi-VRF CE Status 348
Displaying IPv6 348
Configuring DHCP for IPv6 Address Assignment 349
Default DHCPv6 Address Assignment Configuration 349
DHCPv6 Address Assignment Configuration Guidelines 349
Enabling DHCPv6 Server Function (CLI) 350
Enabling DHCPv6 Client Function 352
Configuration Examples for IPv6 Unicast Routing 353
Configuring IPv6 Addressing and Enabling IPv6 Routing: Example 353
Configuring Default Router Preference: Example 354
Enabling an HSRP Group for IPv6: Example 354
Enabling DHCPv6 Server Function: Example 354
Enabling DHCPv6 Client Function: Example 355
Configuring IPv6 ICMP Rate Limiting: Example 355
Configuring Static Routing for IPv6: Example 355
Configuring RIP for IPv6: Example 355
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Displaying IPv6: Example 356
Implementing IPv6 Multicast 357
CHAPTER 22
Finding Feature Information 357
Information About Implementing IPv6 Multicast Routing 357
IPv6 Multicast Overview 357
IPv6 Multicast Routing Implementation 358
MLD Access Group 358
Explicit Tracking of Receivers 358
IPv6 Multicast User Authentication and Profile Support 358
IPV6 MLD Proxy 359
Protocol Independent Multicast 359
PIM-Sparse Mode 359
IPv6 BSR: Configure RP Mapping 361
PIM-Source Specific Multicast 362
Routable Address Hello Option 364
Bidirectional PIM 364
Static Mroutes 364
MRIB 365
MFIB 365
IPv6 Multicast VRF Lite 365
IPv6 Multicast Process Switching and Fast Switching 365
Multiprotocol BGP for the IPv6 Multicast Address Family 366
NSF and SSO Support In IPv6 Multicast 366
Bandwidth-Based CAC for IPv6 Multicast 367
Implementing IPv6 Multicast 367
Enabling IPv6 Multicast Routing 367
Customizing and Verifying the MLD Protocol 367
Customizing and Verifying MLD on an Interface 367
Implementing MLD Group Limits 369
Configuring Explicit Tracking of Receivers to Track Host Behavior 371
Configuring Multicast User Authentication and Profile Support 371
Enabling MLD Proxy in IPv6 373
Resetting the MLD Traffic Counters 374
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Clearing the MLD Interface Counters 375
Configuring PIM 375
Configuring PIM-SM and Displaying PIM-SM Information for a Group Range 375
Configuring PIM Options 377
Configuring Bidirectional PIM and Displaying Bidirectional PIM Information 378
Resetting the PIM Traffic Counters 379
Clearing the PIM Topology Table to Reset the MRIB Connection 380
Configuring a BSR 381
Configuring a BSR and Verifying BSR Information 381
Sending PIM RP Advertisements to the BSR 382
Configuring BSR for Use Within Scoped Zones 383
Configuring BSR Switches to Announce Scope-to-RP Mappings 384
Configuring SSM Mapping 385
Configuring Static Mroutes 386
Using MFIB in IPv6 Multicast 387
Verifying MFIB Operation in IPv6 Multicast 387
Resetting MFIB Traffic Counters 388
Layer 2 391
PART IV
Configuring IEEE 802.1Q and Layer 2 Protocol Tunneling 393
CHAPTER 23
Finding Feature Information 393
Prerequisites for Configuring Tunneling 393
IEEE 802.1Q Tunneling 393
Layer 2 Protocol Tunneling 394
Layer 2 Tunneling for EtherChannels 395
Information about Tunneling 395
IEEE 802.1Q and Layer 2 Protocol Overview 395
IEEE 802.1Q Tunneling 396
IEEE 802.1Q Tunneling Configuration Guidelines 398
Native VLANs 398
System MTU 399
Default IEEE 802.1Q Tunneling Configuration 399
Layer 2 Protocol Tunneling Overview 399
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Layer 2 Protocol Tunneling on Ports 401
Default Layer 2 Protocol Tunneling Configuration 402
How to Configure Tunneling 403
Configuring an IEEE 802.1Q Tunneling Port 403
Configuring Layer 2 Protocol Tunneling 405
Configuring the SP Edge Switch 408
Configuring the Customer Device 411
Configuration Examples for IEEE 802.1Q and Layer 2 Protocol Tunneling 413
Example: Configuring an IEEE 802.1Q Tunneling Port 413
Example: Configuring Layer 2 Protocol Tunneling 414
Examples: Configuring the SP Edge and Customer Switches 414
Monitoring Tunneling Status 416
Where to Go Next 416
Configuring Spanning Tree Protocol 417
CHAPTER 24
Finding Feature Information 417
Restrictions for STP 417
Information About Spanning Tree Protocol 418
Spanning Tree Protocol 418
Spanning-Tree Topology and BPDUs 418
Bridge ID, Device Priority, and Extended System ID 420
Port Priority Versus Path Cost 420
Spanning-Tree Interface States 421
How a Device or Port Becomes the Root Device or Root Port 424
Spanning Tree and Redundant Connectivity 424
Spanning-Tree Address Management 425
Accelerated Aging to Retain Connectivity 425
Spanning-Tree Modes and Protocols 425
Supported Spanning-Tree Instances 426
Spanning-Tree Interoperability and Backward Compatibility 426
STP and IEEE 802.1Q Trunks 427
VLAN-Bridge Spanning Tree 427
Default Spanning-Tree Configuration 427
How to Configure Spanning-Tree Features 428
Consolidated Platform Configuration Guide, Cisco IOS Release 15.2(7)Ex (Catalyst 3560-CX and 2960-CX Switches)
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Contents
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