D-Link xStack DGS-3324SRi User manual
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- Network switches
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- User manual
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xStack Stackable Gigabit Layer 3 Switch Manual
D-Link ™ xStack
Release IV
High Density Layer 3 Stackable Gigabit Switch
Manual
xStack Stackable Gigabit Layer 3 Switch Manual
_________________________________________________________________________________
Information in this document is subject to change without notice.
© 2004 D-Link Computer Corporation. All rights reserved.
Reproduction in any manner whatsoever without the written permission of D-Link Computer Corporation is strictly forbidden.
Trademarks used in this text: D-Link and the D-LINK logo are trademarks of D-Link Computer Corporation; Microsoft and Windows are registered
trademarks of Microsoft Corporation.
Other trademarks and trade names may be used in this document to refer to either the entities claiming the marks and names or their products. D-Link
Computer Corporation disclaims any proprietary interest in trademarks and trade names other than its own.
July 2004 P/N 6XSTACK…01
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Table of Contents
Preface.....................................................................................................................................................9
Intended Readers...................................................................................................................................................................................10
Typographical Conventions................................................................................................................................................................10
Notes, Notices, and Cautions..............................................................................................................................................................10
Safety Instructions.................................................................................................................................................................................11
Safety Cautions...................................................................................................................................................................................11
General Precautions for Rack-Mountable Products............................................................................................................................12
Protecting Against Electrostatic Discharge.........................................................................................................................................13
Introduction..........................................................................................................................................14
Ethernet Technology.............................................................................................................................................................................14
Fast Ethernet.......................................................................................................................................................................................14
Gigabit Ethernet Technology ..............................................................................................................................................................14
Switching Technology ........................................................................................................................................................................15
Switch Description..............................................................................................................................................................................15
Features...............................................................................................................................................................................................16
Ports....................................................................................................................................................................................................17
Installing the SFP ports..................................................................................................................................................................18
Front-Panel Components.....................................................................................................................................................................18
LED Indicators....................................................................................................................................................................................19
Rear Panel Description........................................................................................................................................................................20
Side Panel Description........................................................................................................................................................................21
Installation............................................................................................................................................22
Package Contents................................................................................................................................................................................22
Before You Connect to the Network...................................................................................................................................................22
Installing the Switch without the Rack...............................................................................................................................................23
Installing the Switch in a Rack ...........................................................................................................................................................23
Mounting the Switch in a Standard 19" Rack................................................................................................................................24
Power On.......................................................................................................................................................................................24
Power Failure.................................................................................................................................................................................24
The Optional Module..........................................................................................................................................................................24
The Media Accessory..........................................................................................................................................................................26
External Redundant Power System...............................................................................................................................................26
Connecting the Switch.........................................................................................................................28
Switch to End Node............................................................................................................................................................................28
Switch to Hub or Switch.....................................................................................................................................................................28
Connecting To Network Backbone or Server.....................................................................................................................................29
Stacking and the xStack......................................................................................................................................................................30
Stacking Limitations Utilizing a Ring or Star Topology...............................................................................................................33
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Stacking In a Star Topology ..........................................................................................................................................................35
Introduction to Switch Management..................................................................................................36
Management Options............................................................................................................................................................................36
Web-based Management Interface......................................................................................................................................................36
SNMP-Based Management .................................................................................................................................................................36
Command Line Console Interface through the Serial Port.................................................................................................................36
Connecting the Console Port (RS-232 DCE) ................................................................................................................................36
First Time Connecting to the Switch..................................................................................................................................................38
Password Protection............................................................................................................................................................................39
SNMP Settings....................................................................................................................................................................................40
Traps..............................................................................................................................................................................................41
MIBs..............................................................................................................................................................................................41
IP Address Assignment.......................................................................................................................................................................41
Connecting Devices to the Switch......................................................................................................................................................43
Introduction to Web-based Switch Configuration............................................................................44
Introduction............................................................................................................................................................................................44
Logging on to the Web Manager ........................................................................................................................................................44
Web-based User Interface...................................................................................................................................................................45
Areas of the User Interface............................................................................................................................................................45
Web Pages...........................................................................................................................................................................................47
Configuring the Switch........................................................................................................................48
Switch Information...............................................................................................................................................................................48
IP Address..............................................................................................................................................................................................50
Setting the Switch's IP Address using the Console Interface........................................................................................................52
Advanced Settings.................................................................................................................................................................................53
Box Information....................................................................................................................................................................................55
Port Configurations...............................................................................................................................................................................56
Port Description.....................................................................................................................................................................................58
Port Mirroring........................................................................................................................................................................................59
Link Aggregation..................................................................................................................................................................................60
Understanding Port Trunk Groups.................................................................................................................................................60
LACP Port Setting ................................................................................................................................................................................63
MAC Notification.................................................................................................................................................................................64
MAC Notification Global Settings ................................................................................................................................................64
MAC Notification Port Settings ....................................................................................................................................................65
IGMP Snooping.....................................................................................................................................................................................66
Static Router Ports..............................................................................................................................................................................68
Spanning Tree........................................................................................................................................................................................69
802.1s MSTP.................................................................................................................................................................................70
802.1w Rapid Spanning Tree ........................................................................................................................................................70
Port Transition States.....................................................................................................................................................................70
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Edge Port .......................................................................................................................................................................................71
P2P Port .........................................................................................................................................................................................71
802.1d / 802.1w / 802.1s Compatibility........................................................................................................................................71
STP Bridge Global Settings ................................................................................................................................................................71
MST Configuration Table...................................................................................................................................................................74
MSTP Port Information......................................................................................................................................................................76
STP Instance Settings..........................................................................................................................................................................78
STP Port Settings ................................................................................................................................................................................81
Forwarding & Filtering........................................................................................................................................................................83
Unicast Forwarding.............................................................................................................................................................................83
Static Multicast Forwarding................................................................................................................................................................84
VLANs....................................................................................................................................................................................................85
Understanding IEEE 802.1p Priority..................................................................................................................................................85
VLAN Description..............................................................................................................................................................................85
Notes about VLANs in the xStack Family ....................................................................................................................................85
IEEE 802.1Q VLANs.........................................................................................................................................................................86
802.1Q VLAN Tags.......................................................................................................................................................................87
Port VLAN ID...............................................................................................................................................................................88
Tagging and Untagging.................................................................................................................................................................89
Ingress Filtering.............................................................................................................................................................................89
Default VLANs..............................................................................................................................................................................89
Port-based VLANs.........................................................................................................................................................................90
VLAN Segmentation.....................................................................................................................................................................90
VLAN and Trunk Groups..............................................................................................................................................................90
Protocol VLANs............................................................................................................................................................................91
Static VLAN Entry..............................................................................................................................................................................92
GVRP Settings ....................................................................................................................................................................................95
Traffic Control.......................................................................................................................................................................................98
Port Security.........................................................................................................................................................................................100
Port Lock Entries.................................................................................................................................................................................102
QoS........................................................................................................................................................................................................103
The Advantages of QoS....................................................................................................................................................................103
Understanding QoS...........................................................................................................................................................................104
Bandwidth Control............................................................................................................................................................................104
QoS Scheduling Mechanism.............................................................................................................................................................106
QoS Output Scheduling....................................................................................................................................................................107
Configuring the Combination Queue...........................................................................................................................................107
802.1p Default Priority.....................................................................................................................................................................109
802.1p User Priority..........................................................................................................................................................................110
Traffic Segmentation.........................................................................................................................................................................110
System Log Host.................................................................................................................................................................................111
SNTP Settings......................................................................................................................................................................................114
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Time Settings ...............................................................................................................................................................................114
Time Zone and DST ....................................................................................................................................................................116
Access Profile Table ...........................................................................................................................................................................118
Configuring the Access Profile Table...............................................................................................................................................118
System Severity Settings....................................................................................................................................................................136
Port Access Entity (802.1X)..............................................................................................................................................................137
802.1x Port-Based and MAC-Based Access Control.......................................................................................................................137
Authentication Server..................................................................................................................................................................137
Authenticator...............................................................................................................................................................................138
Client............................................................................................................................................................................................139
Authentication Process................................................................................................................................................................140
Understanding 802.1x Port-based and MAC-based Network Access Control.................................................................................141
Port-Based Network Access Control................................................................................................................................................141
MAC-Based Network Access Control..............................................................................................................................................142
Configure Authenticator...................................................................................................................................................................143
802.1X User.................................................................................................................................................................................145
PAE System Control.........................................................................................................................................................................146
Port Capability.............................................................................................................................................................................146
Initializing Ports for Port Based 802.1x......................................................................................................................................148
Initializing Ports for MAC Based 802.1x....................................................................................................................................149
Reauthenticate Port(s) for Port Based 802.1x..............................................................................................................................150
Reauthenticate Port(s) for MAC-based 802.1x...........................................................................................................................151
RADIUS Server ................................................................................................................................................................................152
Layer 3 IP Networking.......................................................................................................................................................................153
Layer 3 Global Advanced Settings ...................................................................................................................................................153
IP Multinetting..................................................................................................................................................................................153
IP Interface Setup ........................................................................................................................................................................154
MD5 Key Table Configuration.........................................................................................................................................................157
Route Redistribution Settings ...........................................................................................................................................................157
Static/Default Route Settings ............................................................................................................................................................159
Route Preference Settings .................................................................................................................................................................160
Static ARP Table...............................................................................................................................................................................163
RIP....................................................................................................................................................................................................164
RIP Global Settings .....................................................................................................................................................................166
RIP Settings .................................................................................................................................................................................166
OSPF.................................................................................................................................................................................................167
OSPF Global Settings ..................................................................................................................................................................184
OSPF Area Setting.......................................................................................................................................................................184
OSPF Interface Settings...............................................................................................................................................................185
OSPF Virtual Link Settings .........................................................................................................................................................187
OSPF Area Aggregation Settings ................................................................................................................................................189
OSPF Host Route Settings...........................................................................................................................................................190
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DHCP / BOOTP Relay.....................................................................................................................................................................192
DHCP / BOOTP Relay Information............................................................................................................................................192
DHCP/BOOTP Relay Interface Settings .....................................................................................................................................192
DNS Relay ........................................................................................................................................................................................193
Configuring DNS Relay Information..........................................................................................................................................194
DNS Relay Static Settings ...........................................................................................................................................................194
VRRP................................................................................................................................................................................................195
VRRP Global Settings .................................................................................................................................................................195
VRRP Virtual Router Settings.....................................................................................................................................................196
VRRP Authentication Settings ....................................................................................................................................................199
IP Multicast Routing Protocol...........................................................................................................................................................200
IGMP...........................................................................................................................................................................................200
IGMP Versions 1 and 2.....................................................................................................................................................................201
IGMP Version 3................................................................................................................................................................................202
IGMP Interface Configuration.....................................................................................................................................................204
DVMRP Interface Configuration......................................................................................................................................................205
DVMRP Global Settings .............................................................................................................................................................206
DVMRP Interface Settings ..........................................................................................................................................................206
PIM-DM Interface Configuration.....................................................................................................................................................207
PIM-DM Configuration...............................................................................................................................................................207
Security Management........................................................................................................................209
Security IP............................................................................................................................................................................................209
User Accounts......................................................................................................................................................................................209
Admin and User Privileges..........................................................................................................................................................210
Access Authentication Control.........................................................................................................................................................211
Authentication Policy & Parameters.................................................................................................................................................212
Application's Authentication Settings...............................................................................................................................................213
Authentication Server Group............................................................................................................................................................213
Authentication Server Host...............................................................................................................................................................215
Login Method Lists...........................................................................................................................................................................216
Enable Method Lists.........................................................................................................................................................................218
Configure Local Enable Password....................................................................................................................................................220
Enable Admin ...................................................................................................................................................................................220
Secure Socket Layer (SSL) ...............................................................................................................................................................222
Download Certificate........................................................................................................................................................................222
Configuration....................................................................................................................................................................................223
Secure Shell (SSH).............................................................................................................................................................................225
SSH Configuration............................................................................................................................................................................225
SSH Authentication Mode and Algorithm Settings..........................................................................................................................226
SSH User Authentication Mode........................................................................................................................................................229
SNMP Manager..................................................................................................................................231
SNMP Settings..................................................................................................................................................................................231
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SNMP User Table.............................................................................................................................................................................232
SNMP View Table............................................................................................................................................................................234
SNMP Group Table..........................................................................................................................................................................235
SNMP Community Table..................................................................................................................................................................237
SNMP Host Table.............................................................................................................................................................................238
SNMP Engine ID..............................................................................................................................................................................239
Monitoring ..........................................................................................................................................240
Port Utilization ....................................................................................................................................................................................240
CPU Utilization...................................................................................................................................................................................241
Packets ..................................................................................................................................................................................................242
Received (RX)...................................................................................................................................................................................242
UMB Cast (RX)................................................................................................................................................................................244
Transmitted (TX)..............................................................................................................................................................................246
Errors.....................................................................................................................................................................................................248
Received (RX)...................................................................................................................................................................................248
Transmitted (TX)..............................................................................................................................................................................250
Size ........................................................................................................................................................................................................252
Stacking Information..........................................................................................................................................................................254
Module Information............................................................................................................................................................................255
Device Status.......................................................................................................................................................................................256
MAC Address......................................................................................................................................................................................257
Switch History Log.............................................................................................................................................................................259
IGMP Snooping Group......................................................................................................................................................................260
IGMP Snooping Forwarding.............................................................................................................................................................261
Browse Router Port.............................................................................................................................................................................261
Port Access Control............................................................................................................................................................................262
Authenticator State............................................................................................................................................................................262
Authenticator Statistics.....................................................................................................................................................................264
Authenticator Session Statistics........................................................................................................................................................265
Authenticator Diagnostics.................................................................................................................................................................267
RADIUS Authentication...................................................................................................................................................................269
RADIUS Accounting........................................................................................................................................................................270
Layer 3 Feature....................................................................................................................................................................................272
Browse IP Address Table..................................................................................................................................................................272
Browse Routing Table ......................................................................................................................................................................273
Browse ARP Table............................................................................................................................................................................273
Browse IP Multicast Forwarding Table............................................................................................................................................274
Browse IGMP Group Table..............................................................................................................................................................274
OSPF Monitoring..............................................................................................................................................................................277
Browse OSPF LSDB Table.........................................................................................................................................................277
Browse OSPF Neighbor Table ....................................................................................................................................................278
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OSPF Virtual Neighbor ...............................................................................................................................................................279
DVMRP Monitoring.........................................................................................................................................................................280
Browse DVMRP Routing Table..................................................................................................................................................280
Browse DVMRP Neighbor Table................................................................................................................................................281
Browse DVMRP Routing Next Hop Table.................................................................................................................................281
PIM Monitoring................................................................................................................................................................................283
Browse PIM Neighbor Table.......................................................................................................................................................283
Switch Maintenance...........................................................................................................................284
TFTP Services .....................................................................................................................................................................................284
Download Firmware .........................................................................................................................................................................284
Download Configuration File ...........................................................................................................................................................285
Upload Configuration .......................................................................................................................................................................285
Upload Log.......................................................................................................................................................................................285
Multiple Image Services ....................................................................................................................................................................286
Firmware Information.......................................................................................................................................................................286
Config Firmware Image ....................................................................................................................................................................287
CompactFlash Services......................................................................................................................................................................287
CF Card Information.........................................................................................................................................................................288
Download Firmware from CF...........................................................................................................................................................288
Download Configuration from CF....................................................................................................................................................289
Upload Firmware to CF....................................................................................................................................................................290
Upload Config to CF.........................................................................................................................................................................290
Upload Log to CF.............................................................................................................................................................................290
FS Commands...................................................................................................................................................................................291
Format..........................................................................................................................................................................................291
Copy.............................................................................................................................................................................................292
Md/Mkdir.....................................................................................................................................................................................292
Rd/Rmdir .....................................................................................................................................................................................292
Dir................................................................................................................................................................................................293
Rename ........................................................................................................................................................................................293
Ping Test...............................................................................................................................................................................................294
Save Changes.......................................................................................................................................................................................294
Reset......................................................................................................................................................................................................295
Reboot System.....................................................................................................................................................................................296
Logout...................................................................................................................................................................................................296
D-Link Single IP Management..........................................................................................................297
Single IP Management (SIM) Overview.........................................................................................................................................297
SIM Using the Web Interface...........................................................................................................................................................298
Topology...............................................................................................................................................................................................299
Tool Tips...............................................................................................................................................................................................302
Right Click........................................................................................................................................................................................303
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Group Icon...................................................................................................................................................................................303
Commander Switch Icon .............................................................................................................................................................304
Member Switch Icon....................................................................................................................................................................305
Candidate Switch Icon.................................................................................................................................................................306
Menu Bar...........................................................................................................................................................................................307
Group...........................................................................................................................................................................................308
Device..........................................................................................................................................................................................308
View.............................................................................................................................................................................................308
Firmware Upgrade..............................................................................................................................................................................309
Configuration File Backup/Restore..................................................................................................................................................309
Appendix A.........................................................................................................................................310
Appendix B..........................................................................................................................................312
Cables and Connectors................................................................................................................................................................312
Appendix C.........................................................................................................................................313
Cable Lengths..............................................................................................................................................................................313
Glossary...............................................................................................................................................314
International Offices..........................................................................................................................317
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Preface
The xStack Manual is divided into sections that describe the system installation and operating instructions with examples.
Section 1, Introduction - Describes the Switch and its features.
Section 2, Installation- Helps you get started with the basic installation of the Switch and also describes the front panel,
rear panel, side panels, and LED indicators of the Switch.
Section 3, Connecting the Switch - Tells how you can connect the Switch to your Ethernet network.
Section 4, Introduction to Switch Management - Introduces basic Switch management features, including password
protection, SNMP settings, IP address assignment and connecting devices to the Switch.
Section 5, Introduction to Web-based Switch Management - Talks about connecting to and using the Web-based switch
management feature on the Switch.
Section 6, Configuring the Switch - A detailed discussion about configuring some of the basic functions of the Switch,
including accessing the Switch information, using the Switch's utilities and setting up network configurations, such as
Quality of Service, The Access Profile Table, port mirroring and configuring the Spanning Tree.
Section 7, Management - A discussion of the security features of the Switch, including Security IP, User Accounts, and
Access Authentication Control.
Section 8, SNMP Manager – A detailed discussion regarding the Simple Network Monitoring Protocol including
description of features and a brief introduction to SNMP.
Section 9, Monitoring - Features graphs and screens used in monitoring features and packets on the Switch.
Section 10, Maintenance - Features information on Switch utility functions, including TFTP Services, Switch History,
Ping Test Save Changes and Rebooting Services.
Section 11, Single IP Management - Discussion on the Single IP Management function of the Switch, including functions
and features of the Java based user interface and the utilities of the SIM function.
Appendix A, Technical Specifications - The technical specifications of switches in the xStack family.
Appendix B, Cables and Connectors - Describes the RJ-45 receptacle/connector, straight-through and crossover cables
and standard pin assignments.
Appendix C, Cable Lengths - Information on cable types and maximum distances.
Glossary - Lists definitions for terms and acronyms used in this document.
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Intended Readers
The xStack Manual contains information for setup and management of the Switch. This manual is intended for network
managers familiar with network management concepts and terminology.
Typographical Conventions
Convention Description
[ ] In a command line, square brackets indicate an optional entry. For example: [copy
filename] means that optionally you can type copy followed by the name of the file.
Do not type the brackets.
Bold font Indicates a button, a toolbar icon, menu, or menu item. For example: Open the File
menu and choose Cancel. Used for emphasis. May also indicate system messages
or prompts appearing on your screen. For example: You have mail. Bold font is also
used to represent filenames, program names and commands. For example: use the
copy command.
Boldface
Typewriter Font
Indicates commands and responses to prompts that must be typed exactly as printed
in the manual.
Initial capital letter Indicates a window name. Names of keys on the keyboard have initial capitals. For
example: Click Enter.
Italics Indicates a window name or a field. Also can indicate a variables or parameter that is
replaced with an appropriate word or string. For example: type filename means that
you should type the actual filename instead of the word shown in italic.
Menu Name > Menu
Option
Menu Name > Menu Option Indicates the menu structure. Device > Port > Port
Properties means the Port Properties menu option under the Port menu option that
is located under the Device menu.
Notes, Notices, and Cautions
A NOTE indicates important information that helps you make better use of
your device.
A NOTICE indicates either potential damage to hardware or loss of data
and tells you how to avoid the problem.
A CAUTION indicates a potential for property damage, personal injury, or
death.
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Safety Instructions
Use the following safety guidelines to ensure your own personal safety and to help protect your system from potential
damage. Throughout this safety section, the caution icon ( ) is used to indicate cautions and precautions that you need
to review and follow.
Safety Cautions
To reduce the risk of bodily injury, electrical shock, fire, and damage to the equipment, observe the following precautions.
• Observe and follow service markings.
• Do not service any product except as explained in your system documentation.
• Opening or removing covers that are marked with the triangular symbol with a lightning bolt may expose you to
electrical shock.
• Only a trained service technician should service components inside these compartments.
• If any of the following conditions occur, unplug the product from the electrical outlet and replace the part or contact
your trained service provider:
• The power cable, extension cable, or plug is damaged.
• An object has fallen into the product.
• The product has been exposed to water.
• The product has been dropped or damaged.
• The product does not operate correctly when you follow the operating instructions.
• Keep your system away from radiators and heat sources. Also, do not block cooling vents.
• Do not spill food or liquids on your system components, and never operate the product in a wet environment. If the
system gets wet, see the appropriate section in your troubleshooting guide or contact your trained service provider.
• Do not push any objects into the openings of your system. Doing so can cause fire or electric shock by shorting out
interior components.
• Use the product only with approved equipment.
• Allow the product to cool before removing covers or touching internal components.
• Operate the product only from the type of external power source indicated on the electrical ratings label. If you are
not sure of the type of power source required, consult your service provider or local power company.
• To help avoid damaging your system, be sure the voltage selection switch (if provided) on the power supply is set to
match the power available at your location:
• 115 volts (V)/60 hertz (Hz) in most of North and South America and some Far Eastern countries such as South
Korea and Taiwan
• 100 V/50 Hz in eastern Japan and 100 V/60 Hz in western Japan
• 230 V/50 Hz in most of Europe, the Middle East, and the Far East
• Also, be sure that attached devices are electrically rated to operate with the power available in your location.
• Use only approved power cable(s). If you have not been provided with a power cable for your system or for any AC-
powered option intended for your system, purchase a power cable that is approved for use in your country. The power
cable must be rated for the product and for the voltage and current marked on the product's electrical ratings label.
The voltage and current rating of the cable should be greater than the ratings marked on the product.
xStack Stackable Gigabit Layer 3 Switch Manual
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• To help prevent electric shock, plug the system and peripheral power cables into properly grounded electrical outlets.
These cables are equipped with three-prong plugs to help ensure proper grounding. Do not use adapter plugs or
remove the grounding prong from a cable. If you must use an extension cable, use a 3-wire cable with properly
grounded plugs.
• Observe extension cable and power strip ratings. Make sure that the total ampere rating of all products plugged into
the extension cable or power strip does not exceed 80 percent of the ampere ratings limit for the extension cable or
power strip.
• To help protect your system from sudden, transient increases and decreases in electrical power, use a surge suppressor,
line conditioner, or uninterruptible power supply (UPS).
• Position system cables and power cables carefully; route cables so that they cannot be stepped on or tripped over. Be
sure that nothing rests on any cables.
• Do not modify power cables or plugs. Consult a licensed electrician or your power company for site modifications.
Always follow your local/national wiring rules.
• When connecting or disconnecting power to hot-pluggable power supplies, if offered with your system, observe the
following guidelines:
• Install the power supply before connecting the power cable to the power supply.
• Unplug the power cable before removing the power supply.
• If the system has multiple sources of power, disconnect power from the system by unplugging all power cables
from the power supplies.
• Move products with care; ensure that all casters and/or stabilizers are firmly connected to the system. Avoid sudden
stops and uneven surfaces.
General Precautions for Rack-
Mountable
Products
Observe the following precautions for rack stability and safety. Also, refer to the rack installation documentation
accompanying the system and the rack for specific caution statements and procedures.
• Systems are considered to be components in a rack. Thus, "component" refers to any system as well as to various
peripherals or supporting hardware.
CAUTION: Installing systems in a rack without the front and side
stabilizers installed could cause the rack to tip over, potentially resulting in
bodily injury under certain circumstances. Therefore, always install the
stabilizers before installing components in the rack. After installing
system/components in a rack, never pull more than one component out of
the rack on its slide assemblies at one time. The weight of more than one
extended component could cause the rack to tip over and may result in
serious injury.
• Before working on the rack, make sure that the stabilizers are secured to the rack, extended to the floor, and that the
full weight of the rack rests on the floor. Install front and side stabilizers on a single rack or front stabilizers for joined
multiple racks before working on the rack.
• Always load the rack from the bottom up, and load the heaviest item in the rack first.
• Make sure that the rack is level and stable before extending a component from the rack.
• Use caution when pressing the component rail release latches and sliding a component into or out of a rack; the slide
rails can pinch your fingers.
• After a component is inserted into the rack, carefully extend the rail into a locking position, and then slide the
component into the rack.
xStack Stackable Gigabit Layer 3 Switch Manual
13
• Do not overload the AC supply branch circuit that provides power to the rack. The total rack load should not exceed
80 percent of the branch circuit rating.
• Ensure that proper airflow is provided to components in the rack.
• Do not step on or stand on any component when servicing other components in a rack.
NOTE: A qualified electrician must perform all connections to DC power
and to safety grounds. All electrical wiring must comply with applicable
local or national codes and practices.
CAUTION: Never defeat the ground conductor or operate the equipment
in the absence of a suitably installed ground conductor. Contact the
appropriate electrical inspection authority or an electrician if you are
uncertain that suitable grounding is available.
CAUTION: The system chassis must be positively grounded to the rack
cabinet frame. Do not attempt to connect power to the system until
grounding cables are connected. Completed power and safety ground
wiring must be inspected by a qualified electrical inspector. An energy
hazard will exist if the safety ground cable is omitted or disconnected.
Protecting Against Electrostatic Discharge
Static electricity can harm delicate components inside your system. To prevent static damage, discharge static electricity
from your body before you touch any of the electronic components, such as the microprocessor. You can do so by
periodically touching an unpainted metal surface on the chassis.
You can also take the following steps to prevent damage from electrostatic discharge (ESD):
1. When unpacking a static-sensitive component from its shipping carton, do not remove the component from the
antistatic packing material until you are ready to install the component in your system. Just before unwrapping the
antistatic packaging, be sure to discharge static electricity from your body.
2. When transporting a sensitive component, first place it in an antistatic container or packaging.
3. Handle all sensitive components in a static-safe area. If possible, use antistatic floor pads, workbench pads and an
antistatic grounding strap.
xStack Stackable Gigabit Layer 3 Switch Manual
14
Section 1
Introduction
Ethernet Technology
Switch Description
Features
Ports
Front-Panel Components
Side Panel Description
Rear Panel Description
Gigabit Combo Ports
Ethernet Technology
Fast Ethernet Technology
The following manual describes the installation, maintenance and configurations concerning members of the xStack family.
These four switches, the DGS-3324SRi, DGS-3324SR, DXS-3326GSR and the DXS-3350SR are all very similar in
configurations and basic hardware and consequentially, most of the information in this manual will be universal to the
whole xStack family. Corresponding screen pictures of the web manager may be taken from any one of these switches but
the configuration will be identical, except for varying port counts.
Ethernet Technology
Fast Ethernet
The growing importance of LANs and the increasing complexity of desktop computing applications are fueling the need
for high performance networks. A number of high-speed LAN technologies are proposed to provide greater bandwidth and
improve client/server response times. Among them, Fast Ethernet, or 100BASE-T, provides a non-disruptive, smooth
evolution from 10BASE-T technology.
100Mbps Fast Ethernet is a standard specified by the IEEE 802.3 LAN committee. It is an extension of the 10Mbps
Ethernet standard with the ability to transmit and receive data at 100Mbps, while maintaining the Carrier Sense Multiple
Access with Collision Detection (CSMA/CD) Ethernet protocol.
Gigabit Ethernet Technology
Gigabit Ethernet is an extension of IEEE 802.3 Ethernet utilizing the same packet structure, format, and support for
CSMA/CD protocol, full duplex, flow control, and management objects, but with a tenfold increase in theoretical
throughput over 100Mbps Fast Ethernet and a one hundred-fold increase over 10Mbps Ethernet. Since it is compatible with
all 10Mbps and 100Mbps Ethernet environments, Gigabit Ethernet provides a straightforward upgrade without wasting a
company's existing investment in hardware, software, and trained personnel.
The increased speed and extra bandwidth offered by Gigabit Ethernet are essential to coping with the network bottlenecks
that frequently develop as computers and their busses get faster and more users use applications that generate more traffic.
Upgrading key components, such as your backbone and servers to Gigabit Ethernet can greatly improve network response
times as well as significantly speed up the traffic between your subnetworks.
Gigabit Ethernet enables fast optical-fiber connections to support video conferencing, complex imaging, and similar data-
intensive applications. Likewise, since data transfers occur 10 times faster than Fast Ethernet, servers outfitted with Gigabit
Ethernet NIC's are able to perform 10 times the number of operations in the same amount of time.
xStack Stackable Gigabit Layer 3 Switch Manual
15
In addition, the phenomenal bandwidth delivered by Gigabit Ethernet is the most cost-effective method to take advantage
of today’s and tomorrow's rapidly improving switching and routing internetworking technologies.
Switching Technology
Another key development pushing the limits of Ethernet technology is in the field of switching technology. A switch
bridges Ethernet packets at the MAC address level of the Ethernet protocol transmitting among connected Ethernet or Fast
Ethernet LAN segments.
Switching is a cost-effective way of increasing the total network capacity available to users on a local area network. A
switch increases capacity and decreases network loading by making it possible for a local area network to be divided into
different segments, which are not competing with each other for network transmission capacity, and therefore decreasing
the load on each segment.
The Switch acts as a high-speed selective bridge between the individual segments. Traffic that needs to go from one
segment to another (from one port to another) is automatically forwarded by the Switch, without interfering with any other
segments (ports). This allows the total network capacity to be multiplied, while still maintaining the same network cabling
and adapter cards.
For Fast Ethernet or Gigabit Ethernet networks, a switch is an effective way of eliminating problems of chaining hubs
beyond the "two-repeater limit." A switch can be used to split parts of the network into different collision domains, for
example, making it possible to expand your Fast Ethernet network beyond the 205-meter network diameter limit for
100BASE-TX networks. Switches supporting both traditional 10Mbps Ethernet and 100Mbps Fast Ethernet are also ideal
for bridging between existing 10Mbps networks and new 100Mbps networks.
Switching LAN technology is a marked improvement over the previous generation of network bridges, which were
characterized by higher latencies. Routers have also been used to segment local area networks, but the cost of a router and
the setup and maintenance required make routers relatively impractical. Today's switches are an ideal solution to most
kinds of local area network congestion problems.
Switch Description
D-Link's next-generation xStack switches are high port-density Layer 3 stackable switches that combine the ultimate
performance with fault tolerance, security, management functions with flexibility and ease-of-use. All these features,
typically found in the more expensive chassis-based solutions, are available from the xStack family at the price of a
stackable switch!
All xStack switches have some combination of 1000BASE-T ports, XFP ports and 10-Gigabit stacking ports that may be
used in uplinking various network devices to the Switch, including PCs, hubs and other switches to provide a gigabit
Ethernet uplink in full-duplex mode. The SFP (Small Form Factor Portable) combo ports are to be used with fiber-optical
transceiver cabling in order to uplink various other networking devices for a gigabit link that may span great distances.
These SFP ports support full-duplex transmissions, have auto-negotiation and can be used with DEM-310GT (1000BASE-
LX), DEM-311GT (1000BASE-SX), DEM-314GT (1000BASE-LH) and DEM-315GT (1000BASE-ZX) transceivers.
These ports are referred to as “combo” ports which means that both the SFP ports and the 1000BASE-T ports are
numbered the same and cannot be used simultaneously. Attempting to use the ports simultaneously will cause a link down
status for the 1000BASE-T ports. SFP ports will always have priority over these 1000BASE-T ports.
Also included at the rear of the xStack switches are 10-gigabit stacking ports used to stack other switches. The DGS-
3324SRi may be used as the master unit of a switch stack when utilizing these ports and can be configured in a Star
topology, and in total, may provide a stacking solution of up to 312 gigabit ports. Other switches of the xStack family may
utilize these ports for stacking in a ring topology or in combination with the DGS-3324SRi master switch in a star topology.
More information will be provided later in this manual concerning stacking the xStack family of switches.
NOTE: The SFP combo ports on the Switch cannot be used
simultaneously with the corresponding 1000BASE-T ports. If both ports
are in use at the same time (ex. port 21 of the SFP and port 21 of the
1000BASE-T), the SFP ports will take priority over the combo ports and
render the 1000BASE-T ports inoperable.
xStack Stackable Gigabit Layer 3 Switch Manual
16
Features
• IEEE 802.3z compliant
• IEEE 802.3x Flow Control in full-duplex compliant
• IEEE 802.3u compliant
• IEEE 802.3ab compliant
• IEEE 802.3ae compliant (for optional XFP module)
• IEEE 802.1p Priority Queues
• IEEE 802.3ad Link Aggregation Control Protocol support.
• IEEE 802.1x Port-based and MAC-based Access Control
• IEEE 802.1Q VLAN
• IEEE 802.1D Spanning Tree, IEEE 802.1W Rapid Spanning Tree and IEEE 802.1s Multiple Spanning Tree
support
• Stacking support in either Ring or Star topology
• Access Control List (ACL) support
• IP Multinetting support
• Protocol VLAN support
• Single IP Management support
• Access Authentication Control utilizing TACACS, XTACACS, TACACS+ and RADIUS protocols
• Dual Image Firmware
• Simple Network Time Protocol support
• MAC Notification support
• System and Port Utilization support
• System Log Support
• High performance switching engine performs forwarding and filtering at full wire speed up to 128Gbps.
• Full- and half-duplex for all gigabit ports. Full duplex allows the switch port to simultaneously transmit and
receive data. It only works with connections to full-duplex-capable end stations and switches. Connections to a
hub must take place at half-duplex.
• Support broadcast storm filtering
• Non-blocking store and forward switching scheme capability to support rate adaptation and protocol conversion
• Supports by-port Egress/Ingress rate control
• Efficient self-learning and address recognition mechanism enables forwarding rate at wire speed
• Support port-based enable and disable
• Address table: Supports up to 8K MAC addresses per device
• Supports a packet buffer of up to 3 Mbits
• Supports Port-based VLAN Groups
• Port Trunking with flexible load distribution and fail-over function
• IGMP Snooping support
• IGMP version 3
• Layer 3 support including DVMRP, OSPF and RIP
• SNMP support
xStack Stackable Gigabit Layer 3 Switch Manual
17
• Secure Sockets Layer (SSL) and Secure Shell (SSH) support
• System Severity control
• Port Mirroring support
• MIB support for:
• RFC1213 MIB II
• RFC1493 Bridge
• RFC1757 RMON
• RFC1643 Ether-like MIB
• RFC2233 Interface MIB
• IF MIB
• Private MIB
• RFC2674 for 802.1p
• IEEE 802.1x MIB
• RS-232 DCE console port for Switch management
• Provides parallel LED display for port status such as link/act, speed, etc.
Ports
DGS-3324SRi
Twenty-four
10/100/1000BASE-T
Gigabit ports
Eight Combo SFP
Ports
Six 10-Gigabit
stacking ports
One console port
One CompactFlash
slot
DGS-3324SR
Twenty-four
10/100/1000BASE-T
Gigabit ports
Four Combo SFP
Ports
Two 10-Gigabit
stacking ports
One console port
DXS-3326GSR
Four Combo
10/100/1000BASE-T
Gigabit ports
Twenty-four SFP
Ports
Two 10-Gigabit
stacking ports
One console port
One open slot to add
a 2-port 10-gigabit
Uplink Module
DXS-3350SR
Forty-eight
10/100/1000BASE-T
Gigabit ports
Four Combo SFP
Ports
Two 10-Gigabit
stacking ports
One console port
One open slot to add
a 2-port 10-gigabit
Uplink Module
NOTE: For customers interested in D-View, D-Link Corporation's
proprietary SNMP management software, go to the D-Link Website
(www.dlink.com.cn) and download the software and manual.
xStack Stackable Gigabit Layer 3 Switch Manual
18
Installing the SFP ports
The xStack family of switches are equipped with SFP (Small Form Factor Portable) ports, which are to be used with fiber-
optical transceiver cabling in order to uplink various other networking devices for a gigabit link that may span great
distances. These SFP ports support full-duplex transmissions, have auto-negotiation and can be used with DEM-310GT
(1000BASE-LX), DEM-311GT (1000BASE-SX), DEM-314GT (1000BASE-LH) and DEM-315GT (1000BASE-ZX)
transceivers. See the figure below for installing the SFP ports in the Switch.
Figure 1- 1. Inserting the fiber-optic transceivers into the DGS-3324SRi
Front-Panel Components
The front panel of the Switch consists of LED indicators for Power, Master, Console, RPS, SIO (stacking) and for
Link/Act for each port on the Switch. The front panel may also include a seven-segment LED (not supported for the DGS-
3324SRi) indicating the Stack ID number, as well as gigabit Ethernet ports and SFP ports.
DGS-3324SRi
Figure 1- 2. Front Panel View of the DGS-3324SRi as shipped
DGS-3324SR
Figure 1- 3. Front Panel View of the DGS-3324SR as shipped
DXS-3326GSR
Figure 1- 4. Front Panel View of the DXS-3326GSR as shipped
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D-Link xStack DGS-3324SRi User manual
- Category
- Network switches
- Type
- User manual
- This manual is also suitable for
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