Users Guide

Root Guard Scenario...............................................................................................................................................860
Conguring Root Guard...........................................................................................................................................861
Enabling SNMP Traps for Root Elections and Topology Changes...........................................................................862
Conguring Spanning Trees as Hitless........................................................................................................................862
STP Loop Guard.............................................................................................................................................................862
Conguring Loop Guard..........................................................................................................................................864
Displaying STP Guard Conguration........................................................................................................................... 864
50 SupportAssist..........................................................................................................................................866
Conguring SupportAssist Using a Conguration Wizard........................................................................................ 867
Conguring SupportAssist Manually........................................................................................................................... 867
Conguring SupportAssist Activity............................................................................................................................. 869
Conguring SupportAssist Company.......................................................................................................................... 870
Conguring SupportAssist Person............................................................................................................................... 871
Conguring SupportAssist Server................................................................................................................................871
Viewing SupportAssist Conguration..........................................................................................................................872
51 System Time and Date..............................................................................................................................874
Network Time Protocol................................................................................................................................................. 874
Protocol Overview................................................................................................................................................... 875
Congure the Network Time Protocol.................................................................................................................. 875
Enabling NTP............................................................................................................................................................876
Conguring NTP Broadcasts..................................................................................................................................876
Disabling NTP on an Interface................................................................................................................................ 877
Conguring a Source IP Address for NTP Packets..............................................................................................877
Conguring NTP Authentication............................................................................................................................ 877
Conguring a Custom-dened Period for NTP time Synchronization..............................................................880
Dell Networking OS Time and Date.............................................................................................................................880
Conguration Task List .......................................................................................................................................... 880
Setting the Time and Date for the Switch Software Clock............................................................................... 880
Setting the Timezone...............................................................................................................................................881
Set Daylight Saving Time.........................................................................................................................................881
Setting Daylight Saving Time Once........................................................................................................................881
Setting Recurring Daylight Saving Time............................................................................................................... 882
52 Tunneling................................................................................................................................................. 884
Conguring a Tunnel......................................................................................................................................................884
Conguring Tunnel Keepalive Settings........................................................................................................................885
Conguring a Tunnel Interface.....................................................................................................................................886
Conguring Tunnel Allow-Remote Decapsulation......................................................................................................886
Conguring Tunnel source anylocal Decapsulation....................................................................................................887
Guidelines for Conguring Multipoint Receive-Only Tunnels................................................................................... 887
Multipoint Receive-Only Tunnels................................................................................................................................. 887
53 Uplink Failure Detection (UFD)................................................................................................................ 888
Feature Description....................................................................................................................................................... 888
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