Setup Guide

Stack Management Roles....................................................................................................................................... 951
Stack Master Election.............................................................................................................................................952
Virtual IP................................................................................................................................................................... 953
Failover Roles........................................................................................................................................................... 953
MAC Addressing on Stacks....................................................................................................................................953
Stacking LAG........................................................................................................................................................... 955
Supported Stacking Topologies............................................................................................................................. 955
High Availability on Stacks......................................................................................................................................955
Management Access on Stacks............................................................................................................................ 956
Important Points to Remember................................................................................................................................... 956
Stacking Installation Tasks............................................................................................................................................ 957
Create a Stack..........................................................................................................................................................957
Add Units to an Existing Stack............................................................................................................................... 961
Split a Stack............................................................................................................................................................. 963
Stacking Conguration Tasks.......................................................................................................................................964
Assigning Unit Numbers to Units in an Stack...................................................................................................... 964
Creating a Virtual Stack Unit on a Stack.............................................................................................................. 964
Displaying Information about a Stack....................................................................................................................965
Inuencing Management Unit Selection on a Stack............................................................................................967
Managing Redundancy on a Stack........................................................................................................................ 967
Resetting a Unit on a Stack....................................................................................................................................968
Verify a Stack Conguration........................................................................................................................................ 968
Displaying the Status of Stacking Ports............................................................................................................... 968
Remove Units or Front End Ports from a Stack........................................................................................................ 970
Removing a Unit from a Stack............................................................................................................................... 970
Removing Front End Port Stacking........................................................................................................................971
Troubleshoot a Stack......................................................................................................................................................971
Recover from Stack Link Flaps............................................................................................................................... 971
Recover from a Card Problem State on a Stack..................................................................................................972
50 Storm Control.......................................................................................................................................... 973
Congure Storm Control...............................................................................................................................................973
Conguring Storm Control from INTERFACE Mode........................................................................................... 973
Conguring Storm Control from CONFIGURATION Mode................................................................................ 974
PFC Storm...................................................................................................................................................................... 974
Detect PFC Storm................................................................................................................................................... 975
Restore Queue Drop State......................................................................................................................................975
View Details of Storm Control PFC....................................................................................................................... 975
51 Spanning Tree Protocol (STP).................................................................................................................. 977
Protocol Overview......................................................................................................................................................... 977
Congure Spanning Tree...............................................................................................................................................978
Related Conguration Tasks................................................................................................................................... 978
Important Points to Remember....................................................................................................................................978
Conguring Interfaces for Layer 2 Mode....................................................................................................................979
Enabling Spanning Tree Protocol Globally.................................................................................................................. 980
Contents
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