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Transceiver Monitoring..................................................................................................................................................876
48 Storm Control.......................................................................................................................................... 878
Congure Storm Control...............................................................................................................................................878
Conguring Storm Control from INTERFACE Mode........................................................................................... 878
Conguring Storm Control from CONFIGURATION Mode................................................................................ 879
PFC Storm...................................................................................................................................................................... 879
Detect PFC Storm...................................................................................................................................................880
Restore Queue Drop State..................................................................................................................................... 880
View Details of Storm Control PFC.......................................................................................................................880
49 Spanning Tree Protocol (STP)................................................................................................................. 882
Protocol Overview.........................................................................................................................................................882
Congure Spanning Tree...............................................................................................................................................883
Related Conguration Tasks...................................................................................................................................883
Important Points to Remember................................................................................................................................... 883
Conguring Interfaces for Layer 2 Mode....................................................................................................................884
Enabling Spanning Tree Protocol Globally.................................................................................................................. 885
Adding an Interface to the Spanning Tree Group.......................................................................................................887
Modifying Global Parameters....................................................................................................................................... 887
Modifying Interface STP Parameters..........................................................................................................................888
Enabling PortFast.......................................................................................................................................................... 888
Prevent Network Disruptions with BPDU Guard.................................................................................................889
Selecting STP Root........................................................................................................................................................891
STP Root Guard............................................................................................................................................................. 891
Root Guard Scenario................................................................................................................................................891
Conguring Root Guard..........................................................................................................................................892
Enabling SNMP Traps for Root Elections and Topology Changes...........................................................................893
Conguring Spanning Trees as Hitless........................................................................................................................893
STP Loop Guard.............................................................................................................................................................893
Conguring Loop Guard..........................................................................................................................................895
Displaying STP Guard Conguration........................................................................................................................... 895
50 SupportAssist.......................................................................................................................................... 897
Conguring SupportAssist Using a Conguration Wizard........................................................................................898
Conguring SupportAssist Manually........................................................................................................................... 898
Conguring SupportAssist Activity............................................................................................................................. 900
Conguring SupportAssist Company...........................................................................................................................901
Conguring SupportAssist Person.............................................................................................................................. 902
Conguring SupportAssist Server...............................................................................................................................902
Viewing SupportAssist Conguration......................................................................................................................... 903
51 System Time and Date............................................................................................................................. 905
Network Time Protocol.................................................................................................................................................905
Protocol Overview...................................................................................................................................................906
Congure the Network Time Protocol..................................................................................................................906
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