Setup Guide

Congure Storm Control...............................................................................................................................................967
Conguring Storm Control from INTERFACE Mode...........................................................................................967
Conguring Storm Control from CONFIGURATION Mode................................................................................968
PFC Storm......................................................................................................................................................................968
Detect PFC Storm...................................................................................................................................................969
Restore Queue Drop State..................................................................................................................................... 969
View Details of Storm Control PFC.......................................................................................................................969
52 Spanning Tree Protocol (STP).................................................................................................................. 971
Protocol Overview..........................................................................................................................................................971
Congure Spanning Tree...............................................................................................................................................972
Related Conguration Tasks................................................................................................................................... 972
Important Points to Remember....................................................................................................................................972
Conguring Interfaces for Layer 2 Mode....................................................................................................................973
Enabling Spanning Tree Protocol Globally...................................................................................................................974
Adding an Interface to the Spanning Tree Group.......................................................................................................976
Modifying Global Parameters....................................................................................................................................... 976
Modifying Interface STP Parameters.......................................................................................................................... 977
Enabling PortFast...........................................................................................................................................................978
Prevent Network Disruptions with BPDU Guard................................................................................................. 978
Selecting STP Root....................................................................................................................................................... 980
STP Root Guard.............................................................................................................................................................980
Root Guard Scenario................................................................................................................................................981
Conguring Root Guard...........................................................................................................................................981
Enabling SNMP Traps for Root Elections and Topology Changes...........................................................................982
Conguring Spanning Trees as Hitless........................................................................................................................982
STP Loop Guard.............................................................................................................................................................983
Conguring Loop Guard..........................................................................................................................................984
Displaying STP Guard Conguration........................................................................................................................... 985
53 SupportAssist..........................................................................................................................................986
Conguring SupportAssist Using a Conguration Wizard........................................................................................ 987
Conguring SupportAssist Manually........................................................................................................................... 987
Conguring SupportAssist Activity............................................................................................................................. 989
Conguring SupportAssist Company..........................................................................................................................990
Conguring SupportAssist Person............................................................................................................................... 991
Conguring SupportAssist Server................................................................................................................................991
Viewing SupportAssist Conguration..........................................................................................................................992
54 System Time and Date.............................................................................................................................994
Network Time Protocol.................................................................................................................................................994
Protocol Overview...................................................................................................................................................995
Congure the Network Time Protocol..................................................................................................................995
Enabling NTP........................................................................................................................................................... 996
Conguring NTP Broadcasts................................................................................................................................. 996
Disabling NTP on an Interface................................................................................................................................997
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