Administrator Guide

STP Root Guard.............................................................................................................................................................863
Root Guard Scenario............................................................................................................................................... 863
Conguring Root Guard..........................................................................................................................................864
Enabling SNMP Traps for Root Elections and Topology Changes.......................................................................... 865
Conguring Spanning Trees as Hitless........................................................................................................................865
STP Loop Guard............................................................................................................................................................ 865
Conguring Loop Guard..........................................................................................................................................867
Displaying STP Guard Conguration............................................................................................................................867
50 SupportAssist..........................................................................................................................................869
Conguring SupportAssist Using a Conguration Wizard........................................................................................ 870
Conguring SupportAssist Manually........................................................................................................................... 870
Conguring SupportAssist Activity..............................................................................................................................872
Conguring SupportAssist Company.......................................................................................................................... 873
Conguring SupportAssist Person...............................................................................................................................874
Conguring SupportAssist Server................................................................................................................................874
Viewing SupportAssist Conguration..........................................................................................................................875
51 System Time and Date..............................................................................................................................877
Network Time Protocol................................................................................................................................................. 877
Protocol Overview................................................................................................................................................... 878
Congure the Network Time Protocol.................................................................................................................. 878
Enabling NTP............................................................................................................................................................879
Conguring NTP Broadcasts..................................................................................................................................879
Disabling NTP on an Interface............................................................................................................................... 880
Conguring a Source IP Address for NTP Packets.............................................................................................880
Conguring NTP Authentication........................................................................................................................... 880
Conguring a Custom-dened Period for NTP time Synchronization..............................................................883
Dell Networking OS Time and Date.............................................................................................................................883
Conguration Task List ...........................................................................................................................................883
Setting the Time and Date for the Switch Software Clock................................................................................883
Setting the Timezone..............................................................................................................................................884
Set Daylight Saving Time........................................................................................................................................884
Setting Daylight Saving Time Once.......................................................................................................................884
Setting Recurring Daylight Saving Time............................................................................................................... 885
52 Tunneling................................................................................................................................................. 887
Conguring a Tunnel......................................................................................................................................................887
Conguring Tunnel Keepalive Settings........................................................................................................................888
Conguring a Tunnel Interface.....................................................................................................................................889
Conguring Tunnel Allow-Remote Decapsulation......................................................................................................889
Conguring Tunnel source anylocal Decapsulation....................................................................................................890
Guidelines for Conguring Multipoint Receive-Only Tunnels................................................................................... 890
Multipoint Receive-Only Tunnels................................................................................................................................. 890
53 Uplink Failure Detection (UFD).................................................................................................................891
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