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Table Of Contents
Enabling PortFast........................................................................................................................................................... 928
Prevent Network Disruptions with BPDU Guard.............................................................................................. 929
Selecting STP Root......................................................................................................................................................... 931
STP Root Guard...............................................................................................................................................................931
Root Guard Scenario.................................................................................................................................................931
Configuring Root Guard...........................................................................................................................................932
Enabling SNMP Traps for Root Elections and Topology Changes..................................................................... 933
Configuring Spanning Trees as Hitless...................................................................................................................... 933
STP Loop Guard..............................................................................................................................................................933
Configuring Loop Guard.......................................................................................................................................... 934
Displaying STP Guard Configuration..........................................................................................................................935
Chapter 56: SupportAssist........................................................................................................ 936
Configuring SupportAssist Using a Configuration Wizard.................................................................................... 936
Configuring SupportAssist Manually.......................................................................................................................... 937
Configuring SupportAssist Activity............................................................................................................................ 938
Configuring SupportAssist Company......................................................................................................................... 940
Configuring SupportAssist Person..............................................................................................................................940
Configuring SupportAssist Server............................................................................................................................... 941
Viewing SupportAssist Configuration........................................................................................................................ 942
Chapter 57: System Time and Date............................................................................................944
Network Time Protocol................................................................................................................................................. 944
Protocol Overview.................................................................................................................................................... 945
Configure the Network Time Protocol................................................................................................................ 945
Enabling NTP..............................................................................................................................................................945
Configuring NTP Broadcasts..................................................................................................................................946
Disabling NTP on an Interface............................................................................................................................... 946
Configuring a Source IP Address for NTP Packets.......................................................................................... 946
Configuring NTP Authentication........................................................................................................................... 947
Configuring NTP control key password...............................................................................................................949
Dell EMC Networking OS Time and Date................................................................................................................. 949
Configuration Task List .......................................................................................................................................... 949
Setting the Time and Date for the Switch Software Clock............................................................................949
Setting the Timezone.............................................................................................................................................. 950
Set Daylight Saving Time........................................................................................................................................950
Setting Daylight Saving Time Once......................................................................................................................950
Setting Recurring Daylight Saving Time.............................................................................................................. 951
Chapter 58: Tunneling...............................................................................................................953
Configuring a Tunnel...................................................................................................................................................... 953
Configuring Tunnel Keepalive Settings......................................................................................................................954
Configuring a Tunnel Interface....................................................................................................................................954
Configuring Tunnel Allow-Remote Decapsulation...................................................................................................955
Configuring the Tunnel Source Anylocal...................................................................................................................955
Chapter 59: Uplink Failure Detection (UFD)...............................................................................957
Feature Description........................................................................................................................................................ 957
How Uplink Failure Detection Works......................................................................................................................... 958
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