Concept Guide

STP Root Guard.............................................................................................................................................................996
Root Guard Scenario...............................................................................................................................................996
Conguring Root Guard.......................................................................................................................................... 997
Enabling SNMP Traps for Root Elections and Topology Changes...........................................................................998
Conguring Spanning Trees as Hitless........................................................................................................................998
STP Loop Guard............................................................................................................................................................ 998
Conguring Loop Guard........................................................................................................................................ 1000
Displaying STP Guard Conguration..........................................................................................................................1000
56 SupportAssist........................................................................................................................................ 1002
Conguring SupportAssist Using a Conguration Wizard...................................................................................... 1003
Conguring SupportAssist Manually..........................................................................................................................1003
Conguring SupportAssist Activity............................................................................................................................1005
Conguring SupportAssist Company........................................................................................................................ 1006
Conguring SupportAssist Person............................................................................................................................. 1007
Conguring SupportAssist Server..............................................................................................................................1007
Viewing SupportAssist Conguration........................................................................................................................1008
57 System Time and Date............................................................................................................................ 1010
Network Time Protocol................................................................................................................................................1010
Protocol Overview...................................................................................................................................................1011
Congure the Network Time Protocol..................................................................................................................1011
Enabling NTP...........................................................................................................................................................1012
Conguring NTP Broadcasts.................................................................................................................................1012
Disabling NTP on an Interface...............................................................................................................................1013
Conguring a Source IP Address for NTP Packets............................................................................................ 1013
Conguring NTP Authentication...........................................................................................................................1013
Conguring NTP control key password............................................................................................................... 1016
Dell EMC Networking OS Time and Date..................................................................................................................1016
Conguration Task List ..........................................................................................................................................1016
Setting the Time and Date for the Switch Software Clock...............................................................................1016
Setting the Timezone............................................................................................................................................. 1017
Set Daylight Saving Time....................................................................................................................................... 1017
Setting Daylight Saving Time Once...................................................................................................................... 1017
Setting Recurring Daylight Saving Time...............................................................................................................1018
58 Tunneling................................................................................................................................................1020
Conguring a Tunnel.................................................................................................................................................... 1020
Conguring Tunnel Keepalive Settings.......................................................................................................................1021
Conguring a Tunnel Interface.................................................................................................................................... 1021
Conguring Tunnel Allow-Remote Decapsulation.................................................................................................... 1022
Conguring the Tunnel Source Anylocal....................................................................................................................1022
59 Uplink Failure Detection (UFD)...............................................................................................................1024
Feature Description......................................................................................................................................................1024
How Uplink Failure Detection Works..........................................................................................................................1025
Contents
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