Administrator Guide

Congure the Network Time Protocol..................................................................................................................946
Enabling NTP............................................................................................................................................................947
Conguring NTP Broadcasts..................................................................................................................................947
Disabling NTP on an Interface................................................................................................................................948
Conguring a Source IP Address for NTP Packets............................................................................................. 948
Conguring NTP Authentication............................................................................................................................948
Conguring a Custom-dened Period for NTP time Synchronization...............................................................951
Dell Networking OS Time and Date..............................................................................................................................951
Conguration Task List ........................................................................................................................................... 951
Setting the Time and Date for the Switch Software Clock................................................................................ 951
Setting the Timezone..............................................................................................................................................952
Set Daylight Saving Time........................................................................................................................................952
Setting Daylight Saving Time Once.......................................................................................................................952
Setting Recurring Daylight Saving Time............................................................................................................... 953
57 Tunneling................................................................................................................................................. 955
Conguring a Tunnel..................................................................................................................................................... 955
Conguring Tunnel Keepalive Settings....................................................................................................................... 956
Conguring a Tunnel Interface.....................................................................................................................................956
Conguring Tunnel Allow-Remote Decapsulation......................................................................................................957
Conguring the Tunnel Source Anylocal..................................................................................................................... 957
58 Uplink Failure Detection (UFD)................................................................................................................ 959
Feature Description....................................................................................................................................................... 959
How Uplink Failure Detection Works...........................................................................................................................960
UFD and NIC Teaming................................................................................................................................................... 961
Important Points to Remember....................................................................................................................................961
Conguring Uplink Failure Detection...........................................................................................................................962
Clearing a UFD-Disabled Interface.............................................................................................................................. 963
Displaying Uplink Failure Detection..............................................................................................................................964
Sample Conguration: Uplink Failure Detection.........................................................................................................966
59 Upgrade Procedures................................................................................................................................ 968
Get Help with Upgrades............................................................................................................................................... 968
60 Virtual LANs (VLANs)..............................................................................................................................969
Default VLAN..................................................................................................................................................................970
Port-Based VLANs........................................................................................................................................................ 970
VLANs and Port Tagging............................................................................................................................................... 971
Conguration Task List...................................................................................................................................................971
Creating a Port-Based VLAN.................................................................................................................................. 971
Assigning Interfaces to a VLAN............................................................................................................................. 972
Moving Untagged Interfaces..................................................................................................................................973
Assigning an IP Address to a VLAN....................................................................................................................... 974
Conguring Native VLANs............................................................................................................................................974
Enabling Null VLAN as the Default VLAN...................................................................................................................975
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