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Displaying STP Guard Conguration..........................................................................................................................1003
55 SupportAssist........................................................................................................................................ 1004
Conguring SupportAssist Using a Conguration Wizard...................................................................................... 1005
Conguring SupportAssist Manually......................................................................................................................... 1005
Conguring SupportAssist Activity............................................................................................................................ 1007
Conguring SupportAssist Company........................................................................................................................ 1008
Conguring SupportAssist Person.............................................................................................................................1009
Conguring SupportAssist Server.............................................................................................................................. 1010
Viewing SupportAssist Conguration.........................................................................................................................1010
56 System Time and Date............................................................................................................................ 1013
Network Time Protocol................................................................................................................................................ 1013
Protocol Overview.................................................................................................................................................. 1014
Congure the Network Time Protocol................................................................................................................. 1014
Enabling NTP...........................................................................................................................................................1015
Conguring NTP Broadcasts.................................................................................................................................1015
Disabling NTP on an Interface...............................................................................................................................1015
Conguring a Source IP Address for NTP Packets............................................................................................ 1016
Conguring NTP Authentication...........................................................................................................................1016
Time and Date............................................................................................................................................................... 1018
Conguration Task List ..........................................................................................................................................1018
Setting the Time and Date for the Switch Software Clock...............................................................................1019
Setting the Timezone.............................................................................................................................................1019
Set Daylight Saving Time...................................................................................................................................... 1020
Setting Daylight Saving Time Once..................................................................................................................... 1020
Setting Recurring Daylight Saving Time..............................................................................................................1020
Conguring a Custom-dened Period for NTP time Synchronization............................................................ 1022
57 Tunneling ............................................................................................................................................... 1023
Conguring a Tunnel.................................................................................................................................................... 1023
Conguring Tunnel Keepalive Settings...................................................................................................................... 1024
Conguring a Tunnel Interface....................................................................................................................................1024
Conguring Tunnel allow-remote Decapsulation...................................................................................................... 1025
Conguring Tunnel source anylocal Decapsulation.................................................................................................. 1025
Multipoint Receive-Only Tunnels................................................................................................................................1025
Guidelines for Conguring Multipoint Receive-Only Tunnels............................................................................1026
58 Upgrade Procedures...............................................................................................................................1027
Upgrade OverviewGet Help with Upgrades..............................................................................................................1027
Bootup and Upgrades.................................................................................................................................................. 1027
59 Uplink Failure Detection (UFD)...............................................................................................................1028
Feature Description......................................................................................................................................................1028
How Uplink Failure Detection Works..........................................................................................................................1029
UFD and NIC Teaming................................................................................................................................................. 1030
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