Administrator Guide

Enabling NTP............................................................................................................................................................944
Conguring NTP Broadcasts..................................................................................................................................944
Disabling NTP on an Interface............................................................................................................................... 945
Conguring a Source IP Address for NTP Packets.............................................................................................945
Conguring NTP Authentication........................................................................................................................... 945
Conguring a Custom-dened Period for NTP time Synchronization..............................................................948
Dell Networking OS Time and Date.............................................................................................................................948
Conguration Task List ...........................................................................................................................................948
Setting the Time and Date for the Switch Software Clock................................................................................948
Setting the Timezone..............................................................................................................................................949
Set Daylight Saving Time........................................................................................................................................949
Setting Daylight Saving Time Once.......................................................................................................................949
Setting Recurring Daylight Saving Time............................................................................................................... 950
57 Tunneling................................................................................................................................................. 952
Conguring a Tunnel......................................................................................................................................................952
Conguring Tunnel Keepalive Settings........................................................................................................................953
Conguring a Tunnel Interface.....................................................................................................................................953
Conguring Tunnel Allow-Remote Decapsulation......................................................................................................954
Conguring the Tunnel Source Anylocal.....................................................................................................................954
58 Uplink Failure Detection (UFD)................................................................................................................ 956
Feature Description....................................................................................................................................................... 956
How Uplink Failure Detection Works........................................................................................................................... 957
UFD and NIC Teaming...................................................................................................................................................958
Important Points to Remember................................................................................................................................... 958
Conguring Uplink Failure Detection...........................................................................................................................959
Clearing a UFD-Disabled Interface.............................................................................................................................. 960
Displaying Uplink Failure Detection...............................................................................................................................961
Sample Conguration: Uplink Failure Detection.........................................................................................................963
59 Upgrade Procedures................................................................................................................................965
Get Help with Upgrades............................................................................................................................................... 965
60 Virtual LANs (VLANs)..............................................................................................................................966
Default VLAN................................................................................................................................................................. 967
Port-Based VLANs........................................................................................................................................................ 967
VLANs and Port Tagging.............................................................................................................................................. 968
Conguration Task List..................................................................................................................................................968
Creating a Port-Based VLAN.................................................................................................................................968
Assigning Interfaces to a VLAN............................................................................................................................. 969
Moving Untagged Interfaces..................................................................................................................................970
Assigning an IP Address to a VLAN........................................................................................................................971
Conguring Native VLANs............................................................................................................................................ 971
Enabling Null VLAN as the Default VLAN...................................................................................................................972
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