Users Guide

Deriving Interface Indices..............................................................................................................................................797
Monitor Port-Channels................................................................................................................................................. 798
Troubleshooting SNMP Operation...............................................................................................................................799
48 Stacking.................................................................................................................................................. 800
Stacking Overview........................................................................................................................................................ 800
Stack Management Roles...................................................................................................................................... 800
Stack Master Election..............................................................................................................................................801
Virtual IP................................................................................................................................................................... 802
Failover Roles........................................................................................................................................................... 802
MAC Addressing on Stacks....................................................................................................................................802
Stacking LAG........................................................................................................................................................... 804
Supported Stacking Topologies............................................................................................................................. 804
High Availability on Stacks......................................................................................................................................804
Management Access on Stacks............................................................................................................................ 805
Important Points to Remember................................................................................................................................... 805
Stacking Installation Tasks............................................................................................................................................805
Create a Stack......................................................................................................................................................... 806
Add Units to an Existing Stack.............................................................................................................................. 809
Split a Stack.............................................................................................................................................................. 812
Stacking Conguration Tasks........................................................................................................................................812
Assigning Unit Numbers to Units in an Stack....................................................................................................... 812
Creating a Virtual Stack Unit on a Stack............................................................................................................... 813
Displaying Information about a Stack.....................................................................................................................813
Inuencing Management Unit Selection on a Stack............................................................................................ 815
Managing Redundancy on a Stack.........................................................................................................................815
Resetting a Unit on a Stack.................................................................................................................................... 816
Verify a Stack Conguration......................................................................................................................................... 816
Displaying the Status of Stacking Ports................................................................................................................ 816
Remove Units or Front End Ports from a Stack.........................................................................................................818
Removing a Unit from a Stack................................................................................................................................818
Removing Front End Port Stacking........................................................................................................................818
Troubleshoot a Stack..................................................................................................................................................... 819
Recover from Stack Link Flaps...............................................................................................................................819
Recover from a Card Problem State on a Stack.................................................................................................. 819
49 Storm Control...........................................................................................................................................821
Congure Storm Control............................................................................................................................................... 821
Conguring Storm Control from INTERFACE Mode............................................................................................821
Conguring Storm Control from CONFIGURATION Mode................................................................................822
PFC Storm......................................................................................................................................................................822
Detect PFC Storm................................................................................................................................................... 823
Restore Queue Drop State......................................................................................................................................823
View Details of Storm Control PFC....................................................................................................................... 823
50 Spanning Tree Protocol (STP)................................................................................................................. 825
Protocol Overview.........................................................................................................................................................825
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