Users Guide

Disabling NTP on an Interface..................................................................................................................................859
Conguring a Source IP Address for NTP Packets...................................................................................................859
Conguring NTP Authentication.............................................................................................................................. 860
Dell Networking OS Time and Date................................................................................................................................862
Conguration Task List ............................................................................................................................................862
Setting the Time and Date for the Switch Software Clock.......................................................................................863
Setting the Timezone...............................................................................................................................................863
Set Daylight Saving Time......................................................................................................................................... 863
Setting Daylight Saving Time Once.......................................................................................................................... 864
Setting Recurring Daylight Saving Time................................................................................................................... 864
57 Tunneling...................................................................................................................866
Conguring a Tunnel...................................................................................................................................................... 866
Conguring Tunnel Keepalive Settings............................................................................................................................867
Conguring a Tunnel Interface........................................................................................................................................867
Conguring Tunnel Allow-Remote Decapsulation........................................................................................................... 868
Conguring Tunnel source anylocal Decapsulation......................................................................................................... 868
58 Uplink Failure Detection (UFD)..................................................................................870
Feature Description........................................................................................................................................................ 870
How Uplink Failure Detection Works................................................................................................................................871
UFD and NIC Teaming.................................................................................................................................................... 872
Important Points to Remember...................................................................................................................................... 872
Conguring Uplink Failure Detection...............................................................................................................................873
Clearing a UFD-Disabled Interface..................................................................................................................................874
Displaying Uplink Failure Detection................................................................................................................................. 875
Sample Conguration: Uplink Failure Detection...............................................................................................................877
59 Upgrade Procedures..................................................................................................879
Get Help with Upgrades.................................................................................................................................................879
60 Virtual LANs (VLANs)............................................................................................... 880
Default VLAN.................................................................................................................................................................880
Port-Based VLANs......................................................................................................................................................... 881
VLANs and Port Tagging.................................................................................................................................................881
Conguration Task List...................................................................................................................................................882
Creating a Port-Based VLAN................................................................................................................................... 882
Assigning Interfaces to a VLAN................................................................................................................................883
Moving Untagged Interfaces....................................................................................................................................884
Assigning an IP Address to a VLAN..........................................................................................................................885
Conguring Native VLANs............................................................................................................................................. 885
Enabling Null VLAN as the Default VLAN.......................................................................................................................886
61 Virtual Link Trunking (VLT).........................................................................................887
Overview........................................................................................................................................................................887
VLT on Core Switches..............................................................................................................................................888
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