Service Manual

Table Of Contents
Root Guard Scenario...................................................................................................................974
Configuring Root Guard............................................................................................................. 975
Enabling SNMP Traps for Root Elections and Topology Changes................................................. 976
Configuring Spanning Trees as Hitless............................................................................................ 976
STP Loop Guard................................................................................................................................ 977
Configuring Loop Guard.............................................................................................................978
Displaying STP Guard Configuration............................................................................................... 979
55 SupportAssist..................................................................................................980
Configuring SupportAssist Using a Configuration Wizard.............................................................. 981
Configuring SupportAssist Manually................................................................................................ 981
Configuring SupportAssist Activity...................................................................................................983
Configuring SupportAssist Company.............................................................................................. 984
Configuring SupportAssist Person................................................................................................... 985
Configuring SupportAssist Server.................................................................................................... 986
Viewing SupportAssist Configuration...............................................................................................987
56 System Time and Date.................................................................................. 989
Network Time Protocol....................................................................................................................989
Protocol Overview......................................................................................................................990
Configure the Network Time Protocol...................................................................................... 991
Enabling NTP............................................................................................................................... 991
Configuring NTP Broadcasts...................................................................................................... 991
Disabling NTP on an Interface....................................................................................................992
Configuring a Source IP Address for NTP Packets....................................................................992
Configuring NTP Authentication................................................................................................992
Dell Networking OS Time and Date.................................................................................................996
Configuration Task List ..............................................................................................................996
Setting the Time and Date for the Switch Software Clock....................................................... 996
Setting the Timezone................................................................................................................. 996
Set Daylight Saving Time............................................................................................................ 997
Setting Daylight Saving Time Once............................................................................................997
Setting Recurring Daylight Saving Time.....................................................................................998
57 Tunneling...................................................................................................... 1000
Configuring a Tunnel..................................................................................................................... 1000
Configuring Tunnel Keepalive Settings..........................................................................................1001
Configuring a Tunnel Interface......................................................................................................1002
Configuring Tunnel Allow-Remote Decapsulation.......................................................................1002
Configuring the Tunnel Source Anylocal...................................................................................... 1003
58 Uplink Failure Detection (UFD)................................................................. 1004
31