Users Guide
Dell Networking OS Time and Date.............................................................................................................................864
Configuration Task List ..........................................................................................................................................864
Setting the Time and Date for the Switch Software Clock...............................................................................864
Setting the Timezone..............................................................................................................................................864
Set Daylight Saving Time....................................................................................................................................... 865
Setting Daylight Saving Time Once...................................................................................................................... 865
Setting Recurring Daylight Saving Time...............................................................................................................866
Configuring a Custom-defined Period for NTP time Synchronization............................................................. 867
55 Tunneling.................................................................................................................................................868
Configuring a Tunnel..................................................................................................................................................... 868
Configuring Tunnel Keepalive Settings.......................................................................................................................869
Configuring a Tunnel Interface.................................................................................................................................... 869
Configuring Tunnel Allow-Remote Decapsulation.....................................................................................................870
Configuring the Tunnel Source Anylocal.....................................................................................................................870
56 Uplink Failure Detection (UFD)................................................................................................................872
Feature Description....................................................................................................................................................... 872
How Uplink Failure Detection Works...........................................................................................................................873
UFD and NIC Teaming.................................................................................................................................................. 874
Important Points to Remember................................................................................................................................... 874
Configuring Uplink Failure Detection...........................................................................................................................875
Clearing a UFD-Disabled Interface.............................................................................................................................. 876
Displaying Uplink Failure Detection..............................................................................................................................877
Sample Configuration: Uplink Failure Detection........................................................................................................ 879
57 Upgrade Procedures................................................................................................................................ 881
Get Help with Upgrades................................................................................................................................................881
58 Virtual LANs (VLANs)..............................................................................................................................882
Default VLAN................................................................................................................................................................. 883
Port-Based VLANs........................................................................................................................................................883
VLANs and Port Tagging..............................................................................................................................................884
Configuration Task List.................................................................................................................................................884
Creating a Port-Based VLAN.................................................................................................................................884
Assigning Interfaces to a VLAN.............................................................................................................................885
Moving Untagged Interfaces................................................................................................................................. 886
Assigning an IP Address to a VLAN.......................................................................................................................887
Configuring Native VLANs............................................................................................................................................887
Enabling Null VLAN as the Default VLAN...................................................................................................................888
59 Virtual Link Trunking (VLT)..................................................................................................................... 889
Overview........................................................................................................................................................................ 889
VLT Terminology......................................................................................................................................................892
Layer-2 Traffic in VLT Domains.............................................................................................................................893
Interspersed VLANs................................................................................................................................................ 894
28
Contents