Allied Telesis AT-GS950/48 User manual

613-001806 Rev C
AT-GS950/48
Gigabit Ethernet Switch
AT-GS950/48 Web Interface User Guide
AT-S116 Version 2.0.0 [1.00.016]

Copyright ©2014 Allied Telesis, Inc.
All rights reserved. No part of this publication may be reproduced without prior written permission from Allied Telesis,
Inc.
Allied Telesis and the Allied Telesis logo are trademarks of Allied Telesis, Incorporated. All other product names,
company names, logos or other designations mentioned herein are trademarks or registered trademarks of their respective
owners.
Allied Telesis, Inc. reserves the right to make changes in specifications and other information contained in this document
without prior written notice. The information provided herein is subject to change without notice. In no event shall Allied
Telesis, Inc. be liable for any incidental, special, indirect, or consequential damages whatsoever, including but not limited
to lost profits, arising out of or related to this manual or the information contained herein, even if Allied Telesis, Inc. has
been advised of, known, or should have known, the possibility of such damages.

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Contents
List of Figures ................................................................................................................................................ 11
List of Tables ................................................................................................................................................. 15
Preface ............................................................................................................................................................ 17
Document Conventions.............................................................................................................................. 18
Allied Telesis Contact Information.............................................................................................................. 19
Section I: Getting Started ...........................................................................................21
Chapter 1: Starting a Web Browser Session ................................................................................................ 23
Establishing a Remote Connection to the Web Browser Interface ............................................................ 24
Web Browser Tools.................................................................................................................................... 27
Quitting a Web Browser Management Session ......................................................................................... 28
Chapter 2: System Configuration .................................................................................................................. 29
System Management Information.............................................................................................................. 30
Configuration of IPv4 Address, Subnet Mask and Gateway Address........................................................ 32
IPv6 System Configuration......................................................................................................................... 34
IPv6 Neighbor Configuration...................................................................................................................... 36
Create an IPv6 Neighbor List .............................................................................................................. 36
Delete an IPv6 Neighbor Entry............................................................................................................ 37
Find an IPv6 Neighbor......................................................................................................................... 37
IP Access List Configuration...................................................................................................................... 40
Create an IP Access List ..................................................................................................................... 40
Delete an IP Address List Entry........................................................................................................... 41
User Name and Password Configuration................................................................................................... 42
Add New User Name and Password................................................................................................... 42
Modify User Name and Password....................................................................................................... 43
Delete User Name and Password ....................................................................................................... 44
User Interface Configuration...................................................................................................................... 45
SNMP Interface ................................................................................................................................... 45
User Interface Timeout........................................................................................................................ 46
Group Interval...................................................................................................................................... 46
System Time.............................................................................................................................................. 47
Manually Setting System Time............................................................................................................ 47
Setting SNTP....................................................................................................................................... 48
Setting Daylight Savings Parameters.................................................................................................. 49
SSL Settings .............................................................................................................................................. 50
Configuring SSL .................................................................................................................................. 50
DHCP and ATI Web Discovery Tool.......................................................................................................... 52
DHCP Client Configuration ........................................................................................................................ 53
Activate or Deactivate DCHP for IPv4................................................................................................. 53
Activate or Deactivate DCHP for IPv6................................................................................................. 54
DHCP Auto Configuration.......................................................................................................................... 56
System Information Display ....................................................................................................................... 57

Contents
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System Log Configuration..........................................................................................................................60
Section II: Bridge Configuration ................................................................................63
Chapter 3: Port Configuration ........................................................................................................................65
Overview.....................................................................................................................................................66
Displaying and Configuring Ports...............................................................................................................67
Chapter 4: STP and RSTP ............................................................................................................................71
Overview.....................................................................................................................................................72
Bridge Priority and the Root Bridge......................................................................................................73
Forwarding Delay and Topology Changes...........................................................................................75
Mixed STP and RSTP Networks..........................................................................................................78
Spanning Tree and VLANs ..................................................................................................................78
STP and RSTP Global Settings..................................................................................................................81
STP and RSTP Port Settings .....................................................................................................................84
Chapter 5: Multiple Spanning Tree Protocol .................................................................................................87
MSTP Global Settings................................................................................................................................88
Generic MSTP Port Settings ......................................................................................................................91
MST Settings..............................................................................................................................................94
Open MST Settings Page ....................................................................................................................94
Specify Region and Revision Level......................................................................................................94
Create VLAN Mapping to MST Instance..............................................................................................95
Modify MST Instance ...........................................................................................................................95
Delete MST Instance............................................................................................................................95
MST Port Settings ......................................................................................................................................96
Instance Information...................................................................................................................................98
Chapter 6: Static Port Trunking .....................................................................................................................99
Overview...................................................................................................................................................100
Create a Port Trunk..................................................................................................................................103
Modify a Port Trunk..................................................................................................................................105
Disable a Port Trunk.................................................................................................................................107
Chapter 7: LACP Port Trunks ......................................................................................................................109
Overview...................................................................................................................................................110
System Priority .........................................................................................................................................111
Port Priority Value.....................................................................................................................................112
General Guidelines...................................................................................................................................113
Group Status ............................................................................................................................................115
Configuration Example.......................................................................................................................116
Port Priority Configuration ........................................................................................................................118
Chapter 8: Port Mirroring .............................................................................................................................119
Overview...................................................................................................................................................120
Port Mirroring Configuration .....................................................................................................................121
Disable Port Mirroring...............................................................................................................................123
Chapter 9: Loopback Protection ..................................................................................................................125
Configuration............................................................................................................................................126
Status .......................................................................................................................................................128
Chapter 10: MAC Address Table ................................................................................................................129
Overview...................................................................................................................................................130
Static Unicast MAC Address Configuration..............................................................................................132
Modify Static Unicast Address..................................................................................................................134
Delete Static Unicast Address..................................................................................................................135

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Static Multicast Address Configuration .................................................................................................... 136
Modify Static Multicast Address............................................................................................................... 139
Delete Static Multicast Address ............................................................................................................... 140
Chapter 11: IGMP Snooping ....................................................................................................................... 141
Overview.................................................................................................................................................. 142
IGMP Snooping Configuration ................................................................................................................. 144
IGMP Snooping Router Port Modification................................................................................................ 147
Chapter 12: Storm Control .......................................................................................................................... 149
Overview.................................................................................................................................................. 150
Ingress Rate Limiting......................................................................................................................... 151
Egress Rate Limiting ......................................................................................................................... 151
Configuration............................................................................................................................................ 152
Ingress Rate Limiting ............................................................................................................................... 154
Egress Rate Limiting................................................................................................................................ 156
Chapter 13: Virtual LANs ............................................................................................................................ 157
VLAN Overview........................................................................................................................................ 158
Port-based VLAN Overview............................................................................................................... 159
Tagged VLAN Overview.................................................................................................................... 160
Private VLAN Overview..................................................................................................................... 162
Assign Ports to a VLAN Mode.................................................................................................................. 164
Tagged VLAN Configuration.................................................................................................................... 166
Create a Tagged VLAN ..................................................................................................................... 167
Modify a Tagged VLAN ..................................................................................................................... 168
Delete a Tagged VLAN...................................................................................................................... 171
Tagged VLAN Port Settings..................................................................................................................... 172
Port-Based VLAN Configuration .............................................................................................................. 174
Create a Port-Based VLAN ............................................................................................................... 174
Modify a Port-Based VLAN................................................................................................................ 175
Delete a Port-Based VLAN................................................................................................................ 176
Select MAC Address Forwarding Table Mode......................................................................................... 177
View Dynamic Forwarding Table ............................................................................................................. 178
Private VLAN Configuration..................................................................................................................... 180
Enable or Disable Private VLAN........................................................................................................ 180
Create a Private VLAN ...................................................................................................................... 181
Modify a Private VLAN ...................................................................................................................... 182
Delete a Private VLAN....................................................................................................................... 182
View Current VLAN Database.................................................................................................................. 184
Chapter 14: GVRP ...................................................................................................................................... 187
Overview and Guidelines......................................................................................................................... 188
General Configuration.............................................................................................................................. 189
Port Settings............................................................................................................................................. 190
Time Settings........................................................................................................................................... 192
Chapter 15: Quality of Service and Class of Service .................................................................................. 195
Overview.................................................................................................................................................. 196
Packet Priority ................................................................................................................................... 196
Egress Queue vs Packet Priority Mapping........................................................................................ 197
Prioritizing Untagged Packets ........................................................................................................... 198
Scheduling......................................................................................................................................... 198
Mapping CoS Priorities to Egress Queues............................................................................................... 200
Associate Ports to CoS Priorities............................................................................................................. 202
Associate DSCP Classes to Egress Queues........................................................................................... 203
Queue Scheduling Algorithm ................................................................................................................... 205

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IPv6 Traffic Class Mapping.......................................................................................................................206
Enable or Disable IPv6 Traffic Class Mapping...................................................................................206
Create IPv6 Traffic Class Entries.......................................................................................................207
Delete an IPv6 Traffic Class Entry.....................................................................................................208
Section III: Advanced Features ................................................................................209
Chapter 16: SNMPv1 and v2c .....................................................................................................................211
SNMPv1 and SNMPv2c Overview ...........................................................................................................212
Trap Receiver Attributes...........................................................................................................................213
Activate SNMP Interface ..........................................................................................................................214
SNMPv1 and SNMPv2c User and Group Names ....................................................................................215
Create User and Group Names .........................................................................................................215
Modify User and Group Names..........................................................................................................217
Delete User and Group Names..........................................................................................................217
SNMP Community Strings........................................................................................................................218
Create SNMP Community Strings......................................................................................................218
Modify SNMP Community Strings......................................................................................................219
Delete SNMP Community Strings......................................................................................................219
SNMP Traps.............................................................................................................................................221
Create Trap Host Table Entry............................................................................................................221
Modify a Trap Host Table Entry .........................................................................................................222
Delete a Trap Host Table Entry..........................................................................................................223
Chapter 17: SNMPv3 ..................................................................................................................................225
Overview...................................................................................................................................................226
SNMPv3 Authentication Protocols.....................................................................................................226
SNMPv3 Privacy Protocol..................................................................................................................227
SNMPv3 MIB Views...........................................................................................................................227
SNMPv3 Configuration Process.........................................................................................................228
SNMPv3 User and Group Names ............................................................................................................230
Creating SNMPv3 User and Group Names .......................................................................................230
Modifying SNMPv3 User and Group Names......................................................................................231
Deleting SNMPv3 User and Group Names........................................................................................232
SNMPv3 View Names..............................................................................................................................233
Creating SNMPv3 View Names.........................................................................................................233
Modifying SNMPv3 View Names .......................................................................................................235
Deleting SNMPv3 View Names..........................................................................................................235
SNMPv3 View Table.................................................................................................................................236
Creating SNMPv3 View Table Entries ...............................................................................................236
Modifying SNMPv3 View Table Entries..............................................................................................237
Deleting SNMPv3 View Table Entries................................................................................................237
SNMPv3 Traps.........................................................................................................................................239
SNMP Engine ID ......................................................................................................................................240
Modifying SNMP Engine ID................................................................................................................240
Resetting SNMP Engine ID................................................................................................................240
Chapter 18: Access Control Configuration ..................................................................................................243
Overview...................................................................................................................................................244
Policy Settings..........................................................................................................................................245
Create a Policy...................................................................................................................................245
Change a Policy Status......................................................................................................................249
Modify a Policy...................................................................................................................................250
Delete a Policy...................................................................................................................................251
View Specific Classifier Details..........................................................................................................252
Rate Control Settings ...............................................................................................................................253

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Create a Rate Control Entry .............................................................................................................. 253
Modify the Committed Rate............................................................................................................... 254
Delete a Rate Control Entry............................................................................................................... 255
Policy Database....................................................................................................................................... 256
Display Policy Sequence................................................................................................................... 256
Display Specific Policy Information.................................................................................................... 257
Chapter 19: RMON ..................................................................................................................................... 259
Overview.................................................................................................................................................. 260
Enable and Disable RMON...................................................................................................................... 261
Port Statistics........................................................................................................................................... 262
Histories................................................................................................................................................... 264
Events...................................................................................................................................................... 266
Alarms...................................................................................................................................................... 268
Chapter 20: Voice VLAN ............................................................................................................................. 273
Overview.................................................................................................................................................. 274
CoS with Voice VLAN........................................................................................................................ 274
Organization Unique Identifier (OUI) ................................................................................................. 274
Dynamic Auto-Detection vs Static Ports............................................................................................ 275
General Guidelines .................................................................................................................................. 277
Configuration............................................................................................................................................ 278
OUI Setting............................................................................................................................................... 281
Create OUI Setting ............................................................................................................................ 281
Modify OUI Setting ............................................................................................................................ 282
Delete OUI Setting............................................................................................................................. 282
Chapter 21: Security ................................................................................................................................... 283
Port Access Control ................................................................................................................................. 284
Port Access Control Overview........................................................................................................... 284
Port Access Control Configuration .................................................................................................... 285
RADIUS Client ......................................................................................................................................... 290
RADIUS Overview............................................................................................................................. 290
General Guidelines............................................................................................................................ 290
RADIUS Client Configuration ............................................................................................................ 291
RADIUS Accounting Status............................................................................................................... 292
TACACS+ ................................................................................................................................................ 293
TACACS+ Overview.......................................................................................................................... 293
General Guidelines............................................................................................................................ 293
TACACS+ Configuration.................................................................................................................... 294
Dial-in User— Local Authentication ......................................................................................................... 296
Dial-In User Overview........................................................................................................................ 296
Dial-in User Configuration ................................................................................................................. 296
Destination MAC Filter............................................................................................................................. 299
Destination MAC Filter Overview....................................................................................................... 299
Destination MAC Filter Configuration ................................................................................................ 299
Delete Destination MAC Filter ........................................................................................................... 300
Chapter 22: DHCP Snooping ...................................................................................................................... 303
Overview.................................................................................................................................................. 304
Trusted Ports..................................................................................................................................... 304
Untrusted Ports.................................................................................................................................. 304
Unauthorized DHCP Servers............................................................................................................. 304
DHCP with Option 82 ........................................................................................................................ 305
General Guidelines .................................................................................................................................. 306
General Configuration.............................................................................................................................. 307
Enabling DHCP Snooping ................................................................................................................. 307

Contents
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Configuring DHCP Snooping General Settings..................................................................................308
VLAN Setting............................................................................................................................................310
Creating a VLAN................................................................................................................................310
Modifying a VLAN ..............................................................................................................................311
Deleting a VLAN.................................................................................................................................311
Trusted and Untrusted Port Configuration................................................................................................312
Binding Database.....................................................................................................................................314
Static IP Addresses............................................................................................................................314
Viewing...............................................................................................................................................315
Chapter 23: LLDP .......................................................................................................................................317
Overview...................................................................................................................................................318
Global Configuration.................................................................................................................................319
Enabling or Disabling LLDP...............................................................................................................320
Displaying System Information...........................................................................................................321
Setting Port States.............................................................................................................................321
Neighbors Information..............................................................................................................................323
Chapter 24: Network Statistics ....................................................................................................................325
Overview...................................................................................................................................................326
Traffic Comparison Statistics....................................................................................................................327
Error Group Statistics ...............................................................................................................................331
Historical Status Statistics ........................................................................................................................333
Section IV: Tools ......................................................................................................337
Chapter 25: Software/Configuration Updates .............................................................................................339
Overview...................................................................................................................................................340
Upgrade Firmware Image via HTTP.........................................................................................................341
Upgrade Firmware Image via TFTP .........................................................................................................343
Download or Upload a Configuration File via HTTP.................................................................................345
Configuration File Download..............................................................................................................346
Configuration File Upload...................................................................................................................347
Download or Upload a Configuration File via TFTP .................................................................................349
Configuration File Download..............................................................................................................349
Configuration File Upload...................................................................................................................350
Chapter 26: Cable Diagnostics ...................................................................................................................351
Chapter 27: LED ECO Mode .......................................................................................................................353
Enable LED ECO Mode............................................................................................................................354
Disable LED ECO Mode...........................................................................................................................355
Chapter 28: Energy-Efficient Ethernet ........................................................................................................357
Enable EEE..............................................................................................................................................358
Disable EEE .............................................................................................................................................359
Chapter 29: Rebooting the AT-GS950/48 ...................................................................................................361
Switch Reboot ..........................................................................................................................................362
Configure Factory Default Values.............................................................................................................364
Password Protection of Factory Reset .....................................................................................................366
Disabling Factory Default Reset Feature...........................................................................................366
Enabling Factory Default Reset .........................................................................................................368
Chapter 30: Pinging a Remote System .......................................................................................................371
Appendix A: MSTP Overview .......................................................................................................................373
Overview...................................................................................................................................................374

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Multiple Spanning Tree Instance (MSTI).................................................................................................. 376
Resolving VLAN Fragmentation ........................................................................................................ 376
Multiple VLANs Assigned to an MSTI................................................................................................ 377
General Guidelines .................................................................................................................................. 379
VLAN and MSTI Associations.................................................................................................................. 380
Ports in Multiple MSTIs............................................................................................................................ 381
Multiple Spanning Tree Regions.............................................................................................................. 382
MST Region Guidelines..................................................................................................................... 384
Common and Internal Spanning Tree (CIST).................................................................................... 385
MSTP with STP and RSTP................................................................................................................ 385
Associating VLANs to MSTIs................................................................................................................... 387
VLANs Across Different Regions............................................................................................................. 389
Summary of Guidelines............................................................................................................................ 391
Appendix B: AT-GS950/48 Default Parameters .......................................................................................... 393

Contents
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