Concept Guide

Prevent Network Disruptions with BPDU Guard.................................................................................................944
Selecting STP Root....................................................................................................................................................... 946
STP Root Guard.............................................................................................................................................................946
Root Guard Scenario...............................................................................................................................................946
Conguring Root Guard.......................................................................................................................................... 947
Enabling SNMP Traps for Root Elections and Topology Changes...........................................................................948
Conguring Spanning Trees as Hitless........................................................................................................................948
STP Loop Guard.............................................................................................................................................................948
Conguring Loop Guard..........................................................................................................................................950
Displaying STP Guard Conguration...........................................................................................................................950
54 SupportAssist..........................................................................................................................................952
Conguring SupportAssist Using a Conguration Wizard........................................................................................953
Conguring SupportAssist Manually...........................................................................................................................953
Conguring SupportAssist Activity............................................................................................................................. 955
Conguring SupportAssist Company..........................................................................................................................956
Conguring SupportAssist Person...............................................................................................................................957
Conguring SupportAssist Server............................................................................................................................... 957
Viewing SupportAssist Conguration......................................................................................................................... 958
55 System Time and Date.............................................................................................................................960
Network Time Protocol.................................................................................................................................................960
Protocol Overview....................................................................................................................................................961
Congure the Network Time Protocol...................................................................................................................961
Enabling NTP........................................................................................................................................................... 962
Conguring NTP Broadcasts................................................................................................................................. 962
Disabling NTP on an Interface................................................................................................................................963
Conguring a Source IP Address for NTP Packets.............................................................................................963
Conguring NTP Authentication........................................................................................................................... 963
Dell EMC Networking OS Time and Date...................................................................................................................966
Conguration Task List .......................................................................................................................................... 966
Setting the Time and Date for the Switch Software Clock............................................................................... 966
Setting the Timezone..............................................................................................................................................966
Set Daylight Saving Time........................................................................................................................................967
Setting Daylight Saving Time Once....................................................................................................................... 967
Setting Recurring Daylight Saving Time............................................................................................................... 968
56 Tunneling................................................................................................................................................. 970
Conguring a Tunnel......................................................................................................................................................970
Conguring Tunnel Keepalive Settings.........................................................................................................................971
Conguring a Tunnel Interface......................................................................................................................................971
Conguring Tunnel Allow-Remote Decapsulation...................................................................................................... 972
Conguring the Tunnel Source Anylocal..................................................................................................................... 972
57 Uplink Failure Detection (UFD).................................................................................................................974
Feature Description........................................................................................................................................................974
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