Reference Guide

STP Loop Guard................................................................................................................................950
Configuring Loop Guard.............................................................................................................951
Displaying STP Guard Configuration............................................................................................... 952
59 System Time and Date...................................................................................953
Network Time Protocol....................................................................................................................953
Protocol Overview......................................................................................................................954
Configure the Network Time Protocol...................................................................................... 955
Enabling NTP...............................................................................................................................955
Configuring NTP Broadcasts...................................................................................................... 955
Disabling NTP on an Interface....................................................................................................956
Configuring a Source IP Address for NTP Packets....................................................................956
Configuring NTP Authentication................................................................................................956
Dell Networking OS Time and Date................................................................................................ 960
Configuration Task List ..............................................................................................................960
Setting the Time and Date for the Switch Software Clock.......................................................960
Setting the Timezone................................................................................................................. 960
Set Daylight Saving Time.............................................................................................................961
Setting Daylight Saving Time Once............................................................................................961
Setting Recurring Daylight Saving Time.....................................................................................962
60 Tunneling ....................................................................................................... 964
Configuring a Tunnel........................................................................................................................964
Configuring Tunnel Keepalive Settings............................................................................................965
Configuring a Tunnel Interface........................................................................................................966
Configuring Tunnel allow-remote Decapsulation..........................................................................966
Configuring the tunnel source anylocal.......................................................................................... 967
61 Uplink Failure Detection (UFD)....................................................................968
Feature Description.......................................................................................................................... 968
How Uplink Failure Detection Works...............................................................................................969
UFD and NIC Teaming......................................................................................................................970
Important Points to Remember................................................................................................. 970
Configuring Uplink Failure Detection...............................................................................................971
Clearing a UFD-Disabled Interface.................................................................................................. 973
Displaying Uplink Failure Detection................................................................................................. 974
Sample Configuration: Uplink Failure Detection.............................................................................976
62 Upgrade Procedures......................................................................................978
Get Help with Upgrades................................................................................................................... 978
Getting Help with Switch Information............................................................................................. 978