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Conguring a Custom-dened Period for NTP time Synchronization..............................................................936
Dell EMC Networking OS Time and Date...................................................................................................................936
Conguration Task List ...........................................................................................................................................936
Setting the Time and Date for the Switch Software Clock................................................................................936
Setting the Timezone.............................................................................................................................................. 937
Set Daylight Saving Time........................................................................................................................................ 937
Setting Daylight Saving Time Once....................................................................................................................... 937
Setting Recurring Daylight Saving Time............................................................................................................... 938
54 Tunneling................................................................................................................................................. 940
Conguring a Tunnel......................................................................................................................................................940
Conguring Tunnel Keepalive Settings........................................................................................................................ 941
Conguring a Tunnel Interface.....................................................................................................................................942
Conguring Tunnel Allow-Remote Decapsulation......................................................................................................942
Conguring Tunnel source anylocal Decapsulation....................................................................................................943
Guidelines for Conguring Multipoint Receive-Only Tunnels................................................................................... 943
Multipoint Receive-Only Tunnels................................................................................................................................. 943
55 Uplink Failure Detection (UFD)................................................................................................................ 944
Feature Description....................................................................................................................................................... 944
How Uplink Failure Detection Works...........................................................................................................................945
UFD and NIC Teaming...................................................................................................................................................946
Important Points to Remember................................................................................................................................... 946
Conguring Uplink Failure Detection........................................................................................................................... 947
Clearing a UFD-Disabled Interface.............................................................................................................................. 948
Displaying Uplink Failure Detection..............................................................................................................................949
Sample Conguration: Uplink Failure Detection..........................................................................................................951
56 Upgrade Procedures................................................................................................................................952
Get Help with Upgrades............................................................................................................................................... 952
57 Virtual LANs (VLANs)..............................................................................................................................953
Default VLAN................................................................................................................................................................. 954
Port-Based VLANs........................................................................................................................................................ 954
VLANs and Port Tagging.............................................................................................................................................. 955
Conguration Task List................................................................................................................................................. 955
Creating a Port-Based VLAN.................................................................................................................................955
Assigning Interfaces to a VLAN............................................................................................................................. 956
Moving Untagged Interfaces..................................................................................................................................957
Assigning an IP Address to a VLAN.......................................................................................................................958
Conguring Native VLANs........................................................................................................................................... 958
Enabling Null VLAN as the Default VLAN.................................................................................................................. 959
58 Virtual Link Trunking (VLT)...................................................................................................................... 960
Overview........................................................................................................................................................................ 960
VLT Terminology...................................................................................................................................................... 963
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