Concept Guide

54 System Time and Date.............................................................................................................................964
Network Time Protocol.................................................................................................................................................964
Protocol Overview...................................................................................................................................................965
Congure the Network Time Protocol..................................................................................................................965
Enabling NTP........................................................................................................................................................... 966
Conguring NTP Broadcasts................................................................................................................................. 966
Disabling NTP on an Interface................................................................................................................................967
Conguring a Source IP Address for NTP Packets............................................................................................. 967
Conguring NTP Authentication............................................................................................................................967
Conguring NTP control key password................................................................................................................ 970
Conguring a Custom-dened Period for NTP time Synchronization.............................................................. 970
Dell EMC Networking OS Time and Date...................................................................................................................970
Conguration Task List ...........................................................................................................................................970
Setting the Time and Date for the Switch Software Clock................................................................................970
Setting the Timezone...............................................................................................................................................971
Set Daylight Saving Time.........................................................................................................................................971
Setting Daylight Saving Time Once........................................................................................................................971
Setting Recurring Daylight Saving Time................................................................................................................972
55 Tunneling................................................................................................................................................. 974
Conguring a Tunnel...................................................................................................................................................... 974
Conguring Tunnel Keepalive Settings........................................................................................................................975
Conguring a Tunnel Interface..................................................................................................................................... 976
Conguring Tunnel Allow-Remote Decapsulation......................................................................................................976
Conguring Tunnel source anylocal Decapsulation.................................................................................................... 977
Guidelines for Conguring Multipoint Receive-Only Tunnels....................................................................................977
Multipoint Receive-Only Tunnels..................................................................................................................................977
56 Uplink Failure Detection (UFD)................................................................................................................ 978
Feature Description........................................................................................................................................................978
How Uplink Failure Detection Works........................................................................................................................... 979
UFD and NIC Teaming...................................................................................................................................................980
Important Points to Remember................................................................................................................................... 980
Conguring Uplink Failure Detection............................................................................................................................981
Clearing a UFD-Disabled Interface.............................................................................................................................. 982
Displaying Uplink Failure Detection..............................................................................................................................983
Sample Conguration: Uplink Failure Detection.........................................................................................................985
57 Upgrade Procedures................................................................................................................................ 987
Get Help with Upgrades................................................................................................................................................987
58 Virtual LANs (VLANs)..............................................................................................................................988
Default VLAN................................................................................................................................................................. 989
Port-Based VLANs........................................................................................................................................................ 989
VLANs and Port Tagging.............................................................................................................................................. 990
Contents
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