Connectivity Guide

Table Of Contents
Configuring NTP control key password...............................................................................................................909
Configuring a Custom-defined Period for NTP time Synchronization.........................................................909
Dell EMC Networking OS Time and Date................................................................................................................. 909
Configuration Task List .......................................................................................................................................... 909
Setting the Time and Date for the Switch Software Clock............................................................................ 910
Setting the Timezone............................................................................................................................................... 910
Set Daylight Saving Time.........................................................................................................................................910
Setting Daylight Saving Time Once.......................................................................................................................910
Setting Recurring Daylight Saving Time............................................................................................................... 911
Chapter 54: Tunneling................................................................................................................913
Configuring a Tunnel.......................................................................................................................................................913
Configuring Tunnel Keepalive Settings.......................................................................................................................914
Configuring a Tunnel Interface.....................................................................................................................................914
Configuring Tunnel Allow-Remote Decapsulation................................................................................................... 915
Configuring Tunnel source anylocal Decapsulation................................................................................................. 915
Guidelines for Configuring Multipoint Receive-Only Tunnels............................................................................... 916
Multipoint Receive-Only Tunnels.................................................................................................................................916
Chapter 55: Uplink Failure Detection (UFD)............................................................................... 917
Feature Description......................................................................................................................................................... 917
How Uplink Failure Detection Works.......................................................................................................................... 918
UFD and NIC Teaming....................................................................................................................................................919
Important Points to Remember....................................................................................................................................919
Configuring Uplink Failure Detection......................................................................................................................... 920
Clearing a UFD-Disabled Interface.............................................................................................................................. 921
Displaying Uplink Failure Detection.............................................................................................................................922
Sample Configuration: Uplink Failure Detection......................................................................................................924
Chapter 56: Upgrade Procedures.............................................................................................. 925
Chapter 57: Virtual LANs (VLANs).............................................................................................926
Default VLAN................................................................................................................................................................... 926
Port-Based VLANs..........................................................................................................................................................927
VLANs and Port Tagging...............................................................................................................................................927
Configuration Task List................................................................................................................................................. 928
Creating a Port-Based VLAN................................................................................................................................. 928
Assigning Interfaces to a VLAN.............................................................................................................................929
Moving Untagged Interfaces..................................................................................................................................930
Assigning an IP Address to a VLAN.......................................................................................................................931
Configuring Native VLANs.............................................................................................................................................931
Enabling Null VLAN as the Default VLAN................................................................................................................. 932
Chapter 58: Virtual Link Trunking (VLT).................................................................................... 933
Overview...........................................................................................................................................................................933
VLT Terminology....................................................................................................................................................... 935
Layer-2 Traffic in VLT Domains.............................................................................................................................936
Interspersed VLANs..................................................................................................................................................937
VLT on Core Switches............................................................................................................................................. 937
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