Users Guide

Configuring a Custom-defined Period for NTP time Synchronization......................................................... 972
Dell EMC Networking OS Time and Date..................................................................................................................973
Configuration Task List ...........................................................................................................................................973
Setting the Time and Date for the Switch Software Clock............................................................................973
Setting the Timezone...............................................................................................................................................973
Set Daylight Saving Time........................................................................................................................................ 974
Setting Daylight Saving Time Once...................................................................................................................... 974
Setting Recurring Daylight Saving Time.............................................................................................................. 974
Chapter 59: Tunneling............................................................................................................... 976
Configuring a Tunnel...................................................................................................................................................... 976
Configuring Tunnel Keepalive Settings...................................................................................................................... 977
Configuring a Tunnel Interface.................................................................................................................................... 977
Configuring Tunnel Allow-Remote Decapsulation...................................................................................................978
Configuring the Tunnel Source Anylocal................................................................................................................... 978
Chapter 60: Uplink Failure Detection (UFD).............................................................................. 980
Feature Description........................................................................................................................................................980
How Uplink Failure Detection Works.......................................................................................................................... 981
UFD and NIC Teaming................................................................................................................................................... 982
Important Points to Remember...................................................................................................................................982
Configuring Uplink Failure Detection..........................................................................................................................983
Clearing a UFD-Disabled Interface............................................................................................................................. 984
Displaying Uplink Failure Detection............................................................................................................................ 985
Sample Configuration: Uplink Failure Detection...................................................................................................... 987
Chapter 61: Upgrade Procedures............................................................................................... 989
Chapter 62: Virtual LANs (VLANs).............................................................................................990
Default VLAN................................................................................................................................................................... 990
Port-Based VLANs.......................................................................................................................................................... 991
VLANs and Port Tagging............................................................................................................................................... 991
Configuration Task List................................................................................................................................................. 992
Creating a Port-Based VLAN................................................................................................................................. 992
Assigning Interfaces to a VLAN.............................................................................................................................993
Moving Untagged Interfaces..................................................................................................................................994
Assigning an IP Address to a VLAN......................................................................................................................995
Configuring Native VLANs............................................................................................................................................995
Enabling Null VLAN as the Default VLAN................................................................................................................. 996
Chapter 63: Virtual Link Trunking (VLT).................................................................................... 997
Overview........................................................................................................................................................................... 997
VLT Terminology....................................................................................................................................................... 999
Layer-2 Traffic in VLT Domains...........................................................................................................................1000
Interspersed VLANs.................................................................................................................................................1001
VLT on Core Switches............................................................................................................................................ 1001
Enhanced VLT.......................................................................................................................................................... 1002
Configure Virtual Link Trunking................................................................................................................................. 1003
Important Points to Remember........................................................................................................................... 1003
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Contents