Concept Guide

Manage VLANs using SNMP.......................................................................................................................................859
Creating a VLAN......................................................................................................................................................859
Assigning a VLAN Alias........................................................................................................................................... 859
Displaying the Ports in a VLAN.............................................................................................................................. 859
Add Tagged and Untagged Ports to a VLAN....................................................................................................... 860
Managing Overload on Startup.................................................................................................................................... 861
Enabling and Disabling a Port using SNMP................................................................................................................862
Fetch Dynamic MAC Entries using SNMP................................................................................................................. 862
Example of Deriving the Interface Index Number......................................................................................................863
MIB Objects for Viewing the System Image on Flash Partitions....................................................................... 864
Monitoring BGP sessions via SNMP...........................................................................................................................864
Monitor Port-Channels................................................................................................................................................. 866
Enabling an SNMP Agent to Notify Syslog Server Failure....................................................................................... 867
Troubleshooting SNMP Operation...............................................................................................................................868
Transceiver Monitoring................................................................................................................................................. 868
Conguring SNMP context name............................................................................................................................... 869
49 Stacking...................................................................................................................................................870
Stacking Overview.........................................................................................................................................................870
Stack Management Roles.......................................................................................................................................870
Stack Master Election..............................................................................................................................................871
Virtual IP.....................................................................................................................................................................871
Failover Roles............................................................................................................................................................ 871
MAC Addressing on Stacks.................................................................................................................................... 872
Stacking LAG............................................................................................................................................................873
Supported Stacking Topologies..............................................................................................................................873
High Availability on Stacks...................................................................................................................................... 874
Management Access on Stacks.............................................................................................................................875
Important Points to Remember....................................................................................................................................875
Stacking Installation Tasks............................................................................................................................................ 876
Create a Stack..........................................................................................................................................................876
Add Units to an Existing Stack...............................................................................................................................880
Split a Stack..............................................................................................................................................................882
Stacking Conguration Tasks.......................................................................................................................................883
Assigning Unit Numbers to Units in an Stack...................................................................................................... 883
Creating a Virtual Stack Unit on a Stack.............................................................................................................. 883
Displaying Information about a Stack....................................................................................................................884
Inuencing Management Unit Selection on a Stack........................................................................................... 885
Managing Redundancy on a Stack........................................................................................................................886
Resetting a Unit on a Stack....................................................................................................................................886
Verify a Stack Conguration.........................................................................................................................................887
Displaying the Status of Stacking Ports................................................................................................................887
Remove Units or Front End Ports from a Stack........................................................................................................888
Removing a Unit from a Stack............................................................................................................................... 888
Removing Front End Port Stacking.......................................................................................................................889
Troubleshoot a Stack.....................................................................................................................................................889
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