White Papers

Table Of Contents
Configuration Task List .......................................................................................................................................... 963
Setting the Time and Date for the Switch Software Clock............................................................................964
Setting the Timezone...............................................................................................................................................964
Set Daylight Saving Time........................................................................................................................................ 964
Setting Daylight Saving Time Once...................................................................................................................... 964
Setting Recurring Daylight Saving Time..............................................................................................................965
Chapter 59: Tunneling............................................................................................................... 967
Configuring a Tunnel...................................................................................................................................................... 967
Configuring Tunnel Keepalive Settings......................................................................................................................968
Configuring a Tunnel Interface....................................................................................................................................968
Configuring Tunnel Allow-Remote Decapsulation...................................................................................................969
Configuring the Tunnel Source Anylocal................................................................................................................... 969
Chapter 60: Uplink Failure Detection (UFD)............................................................................... 971
Feature Description......................................................................................................................................................... 971
How Uplink Failure Detection Works..........................................................................................................................972
UFD and NIC Teaming................................................................................................................................................... 973
Important Points to Remember................................................................................................................................... 973
Configuring Uplink Failure Detection..........................................................................................................................974
Clearing a UFD-Disabled Interface............................................................................................................................. 975
Displaying Uplink Failure Detection.............................................................................................................................976
Sample Configuration: Uplink Failure Detection...................................................................................................... 978
Chapter 61: Upgrade Procedures............................................................................................... 979
Chapter 62: Virtual LANs (VLANs).............................................................................................980
Default VLAN................................................................................................................................................................... 980
Port-Based VLANs.......................................................................................................................................................... 981
VLANs and Port Tagging............................................................................................................................................... 981
Configuration Task List................................................................................................................................................. 982
Creating a Port-Based VLAN................................................................................................................................. 982
Assigning Interfaces to a VLAN.............................................................................................................................983
Moving Untagged Interfaces..................................................................................................................................984
Assigning an IP Address to a VLAN......................................................................................................................985
Configuring Native VLANs............................................................................................................................................985
Enabling Null VLAN as the Default VLAN................................................................................................................. 986
Chapter 63: Virtual Link Trunking (VLT).................................................................................... 987
Overview........................................................................................................................................................................... 987
VLT Terminology....................................................................................................................................................... 989
Layer-2 Traffic in VLT Domains............................................................................................................................ 990
Interspersed VLANs.................................................................................................................................................. 991
VLT on Core Switches..............................................................................................................................................991
Enhanced VLT............................................................................................................................................................992
Configure Virtual Link Trunking...................................................................................................................................993
Important Points to Remember............................................................................................................................. 993
Configuration Notes................................................................................................................................................. 994
Primary and Secondary VLT Peers....................................................................................................................... 997
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Contents