Install Guide

Table Of Contents
Chapter 53: Stacking.................................................................................................................898
Stacking Overview..........................................................................................................................................................898
Stack Management Roles....................................................................................................................................... 898
Stack Master Election..............................................................................................................................................899
Virtual IP...................................................................................................................................................................... 901
Failover Roles..............................................................................................................................................................901
MAC Addressing on Stacks.....................................................................................................................................901
Stacking LAG............................................................................................................................................................. 902
Supported Stacking Topologies.............................................................................................................................902
High Availability on Stacks......................................................................................................................................903
Management Access on Stacks............................................................................................................................ 903
Mixed-mode Stacking.............................................................................................................................................. 904
Important Points to Remember...................................................................................................................................905
Stacking Installation Tasks........................................................................................................................................... 905
Create a Stack...........................................................................................................................................................906
Add Units to an Existing Stack.............................................................................................................................. 909
Split a Stack................................................................................................................................................................ 912
Stacking Configuration Tasks....................................................................................................................................... 912
Assigning Unit Numbers to Units in an Stack..................................................................................................... 912
Creating a Virtual Stack Unit on a Stack............................................................................................................. 912
Displaying Information about a Stack................................................................................................................... 912
Influencing Management Unit Selection on a Stack......................................................................................... 915
Managing Redundancy on a Stack........................................................................................................................ 915
Resetting a Unit on a Stack.................................................................................................................................... 916
Enabling Mixed-mode Stacking.............................................................................................................................. 916
Verify a Stack Configuration.........................................................................................................................................916
Displaying the Status of Stacking Ports...............................................................................................................917
Remove Units or Front End Ports from a Stack...................................................................................................... 918
Removing a Unit from a Stack................................................................................................................................918
Removing Front End Port Stacking.......................................................................................................................919
Troubleshoot a Stack......................................................................................................................................................919
Recover from Stack Link Flaps.............................................................................................................................. 919
Recover from a Card Problem State on a Stack...............................................................................................920
Chapter 54: Storm Control.........................................................................................................921
Configure Storm Control............................................................................................................................................... 921
Configuring Storm Control from INTERFACE Mode.........................................................................................921
Configuring Storm Control from CONFIGURATION Mode.............................................................................922
Chapter 55: Spanning Tree Protocol (STP)............................................................................... 923
Protocol Overview..........................................................................................................................................................923
Configure Spanning Tree.............................................................................................................................................. 923
Important Points to Remember...................................................................................................................................924
Configuring Interfaces for Layer 2 Mode..................................................................................................................925
Enabling Spanning Tree Protocol Globally................................................................................................................ 926
Adding an Interface to the Spanning Tree Group................................................................................................... 927
Modifying Global Parameters.......................................................................................................................................928
Modifying Interface STP Parameters........................................................................................................................ 929
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