Users Guide

Selecting STP Root....................................................................................................................................................... 829
STP Root Guard.............................................................................................................................................................829
Root Guard Scenario............................................................................................................................................... 829
Conguring Root Guard..........................................................................................................................................830
Enabling SNMP Traps for Root Elections and Topology Changes........................................................................... 831
Conguring Spanning Trees as Hitless.........................................................................................................................831
STP Loop Guard............................................................................................................................................................. 831
Conguring Loop Guard..........................................................................................................................................833
Displaying STP Guard Conguration........................................................................................................................... 833
51 SupportAssist...........................................................................................................................................835
Conguring SupportAssist Using a Conguration Wizard........................................................................................836
Conguring SupportAssist Manually........................................................................................................................... 836
Conguring SupportAssist Activity............................................................................................................................. 838
Conguring SupportAssist Company..........................................................................................................................839
Conguring SupportAssist Person.............................................................................................................................. 840
Conguring SupportAssist Server...............................................................................................................................840
Viewing SupportAssist Conguration.......................................................................................................................... 841
52 System Time and Date.............................................................................................................................843
Network Time Protocol.................................................................................................................................................843
Protocol Overview...................................................................................................................................................844
Congure the Network Time Protocol..................................................................................................................844
Enabling NTP........................................................................................................................................................... 845
Conguring NTP Broadcasts................................................................................................................................. 845
Disabling NTP on an Interface................................................................................................................................846
Conguring a Source IP Address for NTP Packets............................................................................................. 846
Conguring NTP Authentication............................................................................................................................846
Conguring a Custom-dened Period for NTP time Synchronization..............................................................849
Dell Networking OS Time and Date.............................................................................................................................849
Conguration Task List ...........................................................................................................................................849
Setting the Time and Date for the Switch Software Clock................................................................................849
Setting the Timezone..............................................................................................................................................850
Set Daylight Saving Time........................................................................................................................................850
Setting Daylight Saving Time Once.......................................................................................................................850
Setting Recurring Daylight Saving Time................................................................................................................ 851
53 Tunneling................................................................................................................................................. 853
Conguring a Tunnel......................................................................................................................................................853
Conguring Tunnel Keepalive Settings........................................................................................................................854
Conguring a Tunnel Interface.....................................................................................................................................854
Conguring Tunnel Allow-Remote Decapsulation......................................................................................................855
Conguring the Tunnel Source Anylocal.....................................................................................................................855
54 Uplink Failure Detection (UFD)................................................................................................................ 857
Feature Description....................................................................................................................................................... 857
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