Administrator Guide

Enabling and Disabling a Port using SNMP...............................................................................................................807
Fetch Dynamic MAC Entries using SNMP................................................................................................................807
Example of Deriving the Interface Index Number...................................................................................................809
MIB Objects for Viewing the System Image on Flash Partitions...................................................................809
Monitoring BGP sessions via SNMP.......................................................................................................................... 809
Monitor Port-Channels................................................................................................................................................... 811
Enabling an SNMP Agent to Notify Syslog Server Failure.................................................................................... 812
Troubleshooting SNMP Operation...............................................................................................................................813
Transceiver Monitoring.................................................................................................................................................. 813
Configuring SNMP context name................................................................................................................................814
Chapter 49: Stacking................................................................................................................. 816
Stacking Overview.......................................................................................................................................................... 816
Stack Management Roles........................................................................................................................................ 816
Stack Master Election...............................................................................................................................................817
Virtual IP.......................................................................................................................................................................817
Failover Roles..............................................................................................................................................................817
MAC Addressing on Stacks..................................................................................................................................... 817
Stacking LAG.............................................................................................................................................................. 819
Supported Stacking Topologies..............................................................................................................................819
High Availability on Stacks.......................................................................................................................................819
Management Access on Stacks............................................................................................................................ 820
Important Points to Remember....................................................................................................................................821
Stacking Installation Tasks............................................................................................................................................ 821
Create a Stack............................................................................................................................................................821
Add Units to an Existing Stack.............................................................................................................................. 825
Split a Stack................................................................................................................................................................827
Stacking Configuration Tasks...................................................................................................................................... 827
Assigning Unit Numbers to Units in an Stack.....................................................................................................827
Creating a Virtual Stack Unit on a Stack.............................................................................................................828
Displaying Information about a Stack...................................................................................................................828
Influencing Management Unit Selection on a Stack.........................................................................................829
Managing Redundancy on a Stack........................................................................................................................830
Resetting a Unit on a Stack....................................................................................................................................830
Verify a Stack Configuration........................................................................................................................................830
Displaying the Status of Stacking Ports...............................................................................................................831
Remove Units or Front End Ports from a Stack..................................................................................................... 832
Removing a Unit from a Stack...............................................................................................................................832
Removing Front End Port Stacking......................................................................................................................833
Troubleshoot a Stack..................................................................................................................................................... 833
Recover from Stack Link Flaps..............................................................................................................................833
Recover from a Card Problem State on a Stack...............................................................................................834
Chapter 50: Storm Control........................................................................................................ 835
Configure Storm Control...............................................................................................................................................835
Configuring Storm Control from INTERFACE Mode........................................................................................835
Configuring Storm Control from CONFIGURATION Mode.............................................................................836
Chapter 51: Spanning Tree Protocol (STP)................................................................................ 837
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Contents