Administrator Guide

Enabling and Disabling a Port using SNMP....................................................................................................................763
Fetch Dynamic MAC Entries using SNMP.....................................................................................................................763
Example of Deriving the Interface Index Number......................................................................................................... 764
MIB Objects for Viewing the System Image on Flash Partitions...........................................................................765
Monitoring BGP sessions via SNMP...............................................................................................................................765
Monitor Port-Channels..................................................................................................................................................... 767
Enabling an SNMP Agent to Notify Syslog Server Failure...........................................................................................768
Troubleshooting SNMP Operation..................................................................................................................................769
Transceiver Monitoring.....................................................................................................................................................769
Configuring SNMP context name................................................................................................................................... 770
49 Stacking................................................................................................................................. 771
Stacking Overview............................................................................................................................................................. 771
Stack Management Roles........................................................................................................................................... 771
Stack Master Election.................................................................................................................................................772
Virtual IP........................................................................................................................................................................772
Failover Roles............................................................................................................................................................... 772
MAC Addressing on Stacks........................................................................................................................................772
Stacking LAG................................................................................................................................................................774
Supported Stacking Topologies................................................................................................................................. 774
High Availability on Stacks..........................................................................................................................................774
Management Access on Stacks................................................................................................................................ 775
Important Points to Remember....................................................................................................................................... 776
Stacking Installation Tasks............................................................................................................................................... 776
Create a Stack............................................................................................................................................................. 776
Add Units to an Existing Stack.................................................................................................................................. 780
Split a Stack................................................................................................................................................................. 782
Stacking Configuration Tasks.......................................................................................................................................... 782
Assigning Unit Numbers to Units in an Stack.......................................................................................................... 782
Creating a Virtual Stack Unit on a Stack.................................................................................................................. 782
Displaying Information about a Stack........................................................................................................................783
Influencing Management Unit Selection on a Stack............................................................................................... 784
Managing Redundancy on a Stack............................................................................................................................785
Resetting a Unit on a Stack....................................................................................................................................... 785
Verify a Stack Configuration............................................................................................................................................785
Displaying the Status of Stacking Ports...................................................................................................................785
Remove Units or Front End Ports from a Stack........................................................................................................... 787
Removing a Unit from a Stack...................................................................................................................................787
Removing Front End Port Stacking.......................................................................................................................... 788
Troubleshoot a Stack........................................................................................................................................................788
Recover from Stack Link Flaps..................................................................................................................................788
Recover from a Card Problem State on a Stack.....................................................................................................788
50 Storm Control........................................................................................................................ 790
Configure Storm Control..................................................................................................................................................790
Configuring Storm Control from INTERFACE Mode..............................................................................................790
Configuring Storm Control from CONFIGURATION Mode....................................................................................791
51 Spanning Tree Protocol (STP)..................................................................................................792
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