Concept Guide

Manage VLANs using SNMP.......................................................................................................................................905
Creating a VLAN......................................................................................................................................................905
Assigning a VLAN Alias........................................................................................................................................... 905
Displaying the Ports in a VLAN..............................................................................................................................906
Add Tagged and Untagged Ports to a VLAN....................................................................................................... 906
Managing Overload on Startup....................................................................................................................................907
Enabling and Disabling a Port using SNMP................................................................................................................ 907
Fetch Dynamic MAC Entries using SNMP.................................................................................................................908
Example of Deriving the Interface Index Number..................................................................................................... 909
MIB Objects for Viewing the System Image on Flash Partitions.......................................................................909
Monitoring BGP sessions via SNMP...........................................................................................................................909
Monitor Port-Channels...................................................................................................................................................911
Troubleshooting SNMP Operation............................................................................................................................... 912
Transceiver Monitoring.................................................................................................................................................. 913
Conguring SNMP context name................................................................................................................................ 914
49 Stacking...................................................................................................................................................915
Stacking Overview......................................................................................................................................................... 915
Stack Management Roles....................................................................................................................................... 915
Stack Master Election..............................................................................................................................................916
Virtual IP.................................................................................................................................................................... 917
Failover Roles............................................................................................................................................................ 917
MAC Addressing on Stacks.....................................................................................................................................917
Stacking LAG............................................................................................................................................................ 918
Supported Stacking Topologies.............................................................................................................................. 918
High Availability on Stacks.......................................................................................................................................919
Management Access on Stacks............................................................................................................................. 919
Important Points to Remember................................................................................................................................... 920
Stacking Installation Tasks............................................................................................................................................ 920
Create a Stack..........................................................................................................................................................920
Add Units to an Existing Stack...............................................................................................................................924
Split a Stack..............................................................................................................................................................926
Stacking Conguration Tasks.......................................................................................................................................926
Assigning Unit Numbers to Units in an Stack.......................................................................................................927
Creating a Virtual Stack Unit on a Stack...............................................................................................................927
Displaying Information about a Stack.................................................................................................................... 927
Inuencing Management Unit Selection on a Stack........................................................................................... 929
Managing Redundancy on a Stack........................................................................................................................929
Resetting a Unit on a Stack....................................................................................................................................930
Verify a Stack Conguration........................................................................................................................................ 930
Displaying the Status of Stacking Ports............................................................................................................... 930
Remove Units or Front End Ports from a Stack.........................................................................................................931
Removing a Unit from a Stack................................................................................................................................931
Removing Front End Port Stacking........................................................................................................................931
Troubleshoot a Stack.....................................................................................................................................................932
Recover from Stack Link Flaps.............................................................................................................................. 932
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