Administrator Guide

Configuring a Source IP Address for NTP Packets................................................................................................ 875
Configuring NTP Authentication............................................................................................................................... 876
Configuring NTP control key password....................................................................................................................878
Configuring the NTP Step-Threshold.......................................................................................................................878
Configuring a Custom-defined Period for NTP time Synchronization................................................................. 878
Dell EMC Networking OS Time and Date...................................................................................................................... 879
Configuration Task List ..............................................................................................................................................879
Setting the Time and Date for the Switch Software Clock...................................................................................879
Setting the Timezone..................................................................................................................................................879
Set Daylight Saving Time........................................................................................................................................... 880
Setting Daylight Saving Time Once.......................................................................................................................... 880
Setting Recurring Daylight Saving Time...................................................................................................................880
54 Tunneling...............................................................................................................................882
Configuring a Tunnel.........................................................................................................................................................882
Configuring Tunnel Keepalive Settings...........................................................................................................................883
Configuring a Tunnel Interface........................................................................................................................................ 883
Configuring Tunnel Allow-Remote Decapsulation.........................................................................................................884
Configuring Tunnel source anylocal Decapsulation.......................................................................................................884
Guidelines for Configuring Multipoint Receive-Only Tunnels......................................................................................885
Multipoint Receive-Only Tunnels.................................................................................................................................... 885
55 Uplink Failure Detection (UFD)................................................................................................ 886
Feature Description...........................................................................................................................................................886
How Uplink Failure Detection Works.............................................................................................................................. 887
UFD and NIC Teaming......................................................................................................................................................888
Important Points to Remember.......................................................................................................................................888
Configuring Uplink Failure Detection.............................................................................................................................. 889
Clearing a UFD-Disabled Interface..................................................................................................................................890
Displaying Uplink Failure Detection..................................................................................................................................891
Sample Configuration: Uplink Failure Detection............................................................................................................892
56 Upgrade Procedures............................................................................................................... 894
57 Virtual LANs (VLANs)..............................................................................................................895
Default VLAN.....................................................................................................................................................................895
Port-Based VLANs............................................................................................................................................................896
VLANs and Port Tagging................................................................................................................................................. 896
Configuration Task List.....................................................................................................................................................897
Creating a Port-Based VLAN.....................................................................................................................................897
Assigning Interfaces to a VLAN.................................................................................................................................897
Moving Untagged Interfaces..................................................................................................................................... 898
Assigning an IP Address to a VLAN.......................................................................................................................... 899
Configuring Native VLANs...............................................................................................................................................900
Enabling Null VLAN as the Default VLAN...................................................................................................................... 900
58 Virtual Link Trunking (VLT)......................................................................................................901
Overview.............................................................................................................................................................................901
VLT Terminology......................................................................................................................................................... 903
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