Administrator Guide

Selecting STP Root......................................................................................................................................................1025
STP Root Guard........................................................................................................................................................... 1025
Root Guard Scenario............................................................................................................................................. 1025
Conguring Root Guard........................................................................................................................................ 1026
Enabling SNMP Traps for Root Elections and Topology Changes......................................................................... 1027
STP Loop Guard........................................................................................................................................................... 1027
Conguring Loop Guard........................................................................................................................................ 1028
Displaying STP Guard Conguration..........................................................................................................................1029
56 SupportAssist........................................................................................................................................ 1030
Conguring SupportAssist Using a Conguration Wizard....................................................................................... 1031
Conguring SupportAssist Manually...........................................................................................................................1031
Conguring SupportAssist Activity............................................................................................................................ 1033
Conguring SupportAssist Company.........................................................................................................................1034
Conguring SupportAssist Person.............................................................................................................................1035
Conguring SupportAssist Server............................................................................................................................. 1035
Viewing SupportAssist Conguration........................................................................................................................1036
57 System Time and Date............................................................................................................................1038
Network Time Protocol............................................................................................................................................... 1038
Protocol Overview................................................................................................................................................. 1039
Congure the Network Time Protocol................................................................................................................ 1039
Enabling NTP..........................................................................................................................................................1040
Conguring NTP Broadcasts................................................................................................................................1040
Disabling NTP on an Interface..............................................................................................................................1040
Conguring a Source IP Address for NTP Packets............................................................................................ 1041
Conguring NTP Authentication...........................................................................................................................1041
Conguring NTP control key password...............................................................................................................1043
Time and Date.............................................................................................................................................................. 1044
Conguration Task List .........................................................................................................................................1044
Setting the Time and Date for the Switch Software Clock..............................................................................1044
Setting the Timezone............................................................................................................................................ 1044
Set Daylight Saving Time...................................................................................................................................... 1045
Setting Daylight Saving Time Once..................................................................................................................... 1045
Setting Recurring Daylight Saving Time..............................................................................................................1046
Conguring a Custom-dened Period for NTP time Synchronization.............................................................1047
58 Tunneling ...............................................................................................................................................1048
Conguring a Tunnel.................................................................................................................................................... 1048
Conguring Tunnel Keepalive Settings......................................................................................................................1049
Conguring a Tunnel Interface................................................................................................................................... 1049
Conguring Tunnel allow-remote Decapsulation......................................................................................................1050
Conguring Tunnel source anylocal Decapsulation..................................................................................................1050
Multipoint Receive-Only Tunnels............................................................................................................................... 1050
Guidelines for Conguring Multipoint Receive-Only Tunnels............................................................................ 1051
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