Users Guide

Displaying the Status of Stacking Ports.......................................................................960
Remove Units or Front End Ports from a Stack.............................................................. 960
Removing a Unit from a Stack...................................................................................... 960
Removing Front End Port Stacking...............................................................................961
Troubleshoot a Stack.............................................................................................................961
Recover from Stack Link Flaps.......................................................................................961
Recover from a Card Problem State on a Stack........................................................962
48 Storm Control.....................................................................................................................963
Configure Storm Control..................................................................................................... 963
Configuring Storm Control from INTERFACE Mode................................................964
Configuring Storm Control from CONFIGURATION Mode....................................964
Detect PFC Storm.................................................................................................................. 965
Restore Queue Drop State...................................................................................................965
PFC Storm............................................................................................................................... 966
View Details of Storm Control PFC....................................................................................966
49 Spanning Tree Protocol (STP)......................................................................................... 969
Protocol Overview.................................................................................................................969
Configure Spanning Tree..................................................................................................... 970
Related Configuration Tasks..........................................................................................970
Important Points to Remember..........................................................................................970
Configuring Interfaces for Layer 2 Mode.......................................................................... 971
Enabling Spanning Tree Protocol Globally.......................................................................972
Adding an Interface to the Spanning Tree Group........................................................... 975
Modifying Global Parameters.............................................................................................. 975
Modifying Interface STP Parameters..................................................................................976
Enabling PortFast....................................................................................................................977
Prevent Network Disruptions with BPDU Guard....................................................... 978
Selecting STP Root................................................................................................................980
STP Root Guard......................................................................................................................980
Root Guard Scenario....................................................................................................... 981
Configuring Root Guard.................................................................................................982
Enabling SNMP Traps for Root Elections and Topology Changes..............................982
Configuring Spanning Trees as Hitless..............................................................................983
STP Loop Guard..................................................................................................................... 983
Configuring Loop Guard................................................................................................ 984
Displaying STP Guard Configuration................................................................................. 985
50 SupportAssist......................................................................................................................987
Configuring SupportAssist Using a Configuration Wizard............................................ 988
Configuring SupportAssist Manually..................................................................................988
9.10(0.1)
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