Setup Guide

Inuencing Management Unit Selection on a Stack........................................................................................... 839
Managing Redundancy on a Stack........................................................................................................................840
Resetting a Unit on a Stack....................................................................................................................................840
Verify a Stack Conguration......................................................................................................................................... 841
Displaying the Status of Stacking Ports................................................................................................................ 841
Remove Units or Front End Ports from a Stack........................................................................................................842
Removing a Unit from a Stack............................................................................................................................... 842
Removing Front End Port Stacking.......................................................................................................................843
Troubleshoot a Stack.....................................................................................................................................................843
Recover from Stack Link Flaps.............................................................................................................................. 844
Recover from a Card Problem State on a Stack..................................................................................................844
49 Storm Control..........................................................................................................................................846
Congure Storm Control...............................................................................................................................................846
Conguring Storm Control from INTERFACE Mode...........................................................................................846
Conguring Storm Control from CONFIGURATION Mode................................................................................ 847
50 Spanning Tree Protocol (STP)................................................................................................................. 848
Protocol Overview......................................................................................................................................................... 848
Congure Spanning Tree.............................................................................................................................................. 849
Related Conguration Tasks...................................................................................................................................849
Important Points to Remember................................................................................................................................... 849
Conguring Interfaces for Layer 2 Mode................................................................................................................... 850
Enabling Spanning Tree Protocol Globally................................................................................................................... 851
Adding an Interface to the Spanning Tree Group...................................................................................................... 853
Modifying Global Parameters....................................................................................................................................... 853
Modifying Interface STP Parameters..........................................................................................................................854
Enabling PortFast.......................................................................................................................................................... 854
Prevent Network Disruptions with BPDU Guard.................................................................................................855
Selecting STP Root....................................................................................................................................................... 857
STP Root Guard.............................................................................................................................................................857
Root Guard Scenario............................................................................................................................................... 857
Conguring Root Guard..........................................................................................................................................858
Enabling SNMP Traps for Root Elections and Topology Changes...........................................................................859
Conguring Spanning Trees as Hitless........................................................................................................................859
STP Loop Guard............................................................................................................................................................ 859
Conguring Loop Guard...........................................................................................................................................861
Displaying STP Guard Conguration............................................................................................................................861
51 SupportAssist...........................................................................................................................................863
Conguring SupportAssist Using a Conguration Wizard........................................................................................864
Conguring SupportAssist Manually........................................................................................................................... 864
Conguring SupportAssist Activity............................................................................................................................. 866
Conguring SupportAssist Company.......................................................................................................................... 867
Conguring SupportAssist Person.............................................................................................................................. 868
Conguring SupportAssist Server...............................................................................................................................868
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