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Table Of Contents
Chapter 53: Stacking.................................................................................................................897
Stacking Overview..........................................................................................................................................................897
Stack Management Roles....................................................................................................................................... 897
Stack Master Election..............................................................................................................................................898
Virtual IP......................................................................................................................................................................900
Failover Roles.............................................................................................................................................................900
MAC Addressing on Stacks....................................................................................................................................900
Stacking LAG.............................................................................................................................................................. 901
Supported Stacking Topologies............................................................................................................................. 901
High Availability on Stacks......................................................................................................................................902
Management Access on Stacks............................................................................................................................ 902
Mixed-mode Stacking.............................................................................................................................................. 903
Important Points to Remember...................................................................................................................................904
Stacking Installation Tasks........................................................................................................................................... 904
Create a Stack...........................................................................................................................................................905
Add Units to an Existing Stack.............................................................................................................................. 908
Split a Stack.................................................................................................................................................................911
Stacking Configuration Tasks........................................................................................................................................911
Assigning Unit Numbers to Units in an Stack...................................................................................................... 911
Creating a Virtual Stack Unit on a Stack.............................................................................................................. 911
Displaying Information about a Stack.................................................................................................................... 911
Influencing Management Unit Selection on a Stack......................................................................................... 914
Managing Redundancy on a Stack........................................................................................................................ 914
Resetting a Unit on a Stack.................................................................................................................................... 915
Enabling Mixed-mode Stacking.............................................................................................................................. 915
Verify a Stack Configuration.........................................................................................................................................915
Displaying the Status of Stacking Ports.............................................................................................................. 916
Remove Units or Front End Ports from a Stack...................................................................................................... 917
Removing a Unit from a Stack................................................................................................................................917
Removing Front End Port Stacking.......................................................................................................................918
Troubleshoot a Stack......................................................................................................................................................918
Recover from Stack Link Flaps...............................................................................................................................918
Recover from a Card Problem State on a Stack................................................................................................919
Chapter 54: Storm Control........................................................................................................ 920
Configure Storm Control...............................................................................................................................................920
Configuring Storm Control from INTERFACE Mode........................................................................................920
Configuring Storm Control from CONFIGURATION Mode............................................................................. 921
Chapter 55: Spanning Tree Protocol (STP)............................................................................... 922
Protocol Overview..........................................................................................................................................................922
Configure Spanning Tree.............................................................................................................................................. 922
Important Points to Remember...................................................................................................................................923
Configuring Interfaces for Layer 2 Mode..................................................................................................................924
Enabling Spanning Tree Protocol Globally................................................................................................................ 925
Adding an Interface to the Spanning Tree Group...................................................................................................926
Modifying Global Parameters....................................................................................................................................... 927
Modifying Interface STP Parameters........................................................................................................................ 928
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