Administrator Guide

Prevent Network Disruptions with BPDU Guard.................................................................................................830
Selecting STP Root....................................................................................................................................................... 832
STP Root Guard.............................................................................................................................................................832
Root Guard Scenario............................................................................................................................................... 832
Conguring Root Guard..........................................................................................................................................833
Enabling SNMP Traps for Root Elections and Topology Changes...........................................................................834
Conguring Spanning Trees as Hitless........................................................................................................................834
STP Loop Guard.............................................................................................................................................................834
Conguring Loop Guard..........................................................................................................................................836
Displaying STP Guard Conguration........................................................................................................................... 836
51 SupportAssist...........................................................................................................................................838
Conguring SupportAssist Using a Conguration Wizard........................................................................................839
Conguring SupportAssist Manually........................................................................................................................... 839
Conguring SupportAssist Activity.............................................................................................................................. 841
Conguring SupportAssist Company..........................................................................................................................842
Conguring SupportAssist Person.............................................................................................................................. 843
Conguring SupportAssist Server...............................................................................................................................843
Viewing SupportAssist Conguration..........................................................................................................................844
52 System Time and Date.............................................................................................................................846
Network Time Protocol.................................................................................................................................................846
Protocol Overview................................................................................................................................................... 847
Congure the Network Time Protocol.................................................................................................................. 847
Enabling NTP............................................................................................................................................................848
Conguring NTP Broadcasts..................................................................................................................................848
Disabling NTP on an Interface................................................................................................................................849
Conguring a Source IP Address for NTP Packets............................................................................................. 849
Conguring NTP Authentication............................................................................................................................849
Conguring a Custom-dened Period for NTP time Synchronization..............................................................852
Dell Networking OS Time and Date.............................................................................................................................852
Conguration Task List ...........................................................................................................................................852
Setting the Time and Date for the Switch Software Clock................................................................................852
Setting the Timezone..............................................................................................................................................853
Set Daylight Saving Time........................................................................................................................................853
Setting Daylight Saving Time Once.......................................................................................................................853
Setting Recurring Daylight Saving Time............................................................................................................... 854
53 Tunneling................................................................................................................................................. 856
Conguring a Tunnel..................................................................................................................................................... 856
Conguring Tunnel Keepalive Settings........................................................................................................................857
Conguring a Tunnel Interface..................................................................................................................................... 857
Conguring Tunnel Allow-Remote Decapsulation......................................................................................................858
Conguring the Tunnel Source Anylocal.....................................................................................................................858
54 Uplink Failure Detection (UFD)................................................................................................................ 860
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