Users Guide

Set Daylight Saving Time................................................................................................................................ 829
Setting Daylight Saving Time Once..............................................................................................................829
Setting Recurring Daylight Saving Time......................................................................................................829
Configuring a Custom-defined Period for NTP time Synchronization.................................................831
55 Tunneling........................................................................................................................................................... 832
Configuring a Tunnel............................................................................................................................................ 832
Configuring Tunnel Keepalive Settings............................................................................................................. 833
Configuring a Tunnel Interface...........................................................................................................................833
Configuring Tunnel Allow-Remote Decapsulation........................................................................................834
Configuring the Tunnel Source Anylocal..........................................................................................................834
56 Uplink Failure Detection (UFD)...................................................................................................................... 836
Feature Description............................................................................................................................................... 836
How Uplink Failure Detection Works.................................................................................................................837
UFD and NIC Teaming..........................................................................................................................................838
Important Points to Remember..........................................................................................................................838
Configuring Uplink Failure Detection................................................................................................................839
Clearing a UFD-Disabled Interface.................................................................................................................... 840
Displaying Uplink Failure Detection................................................................................................................... 841
Sample Configuration: Uplink Failure Detection............................................................................................ 843
57 Upgrade Procedures........................................................................................................................................ 845
Get Help with Upgrades....................................................................................................................................... 845
58 Virtual LANs (VLANs)........................................................................................................................................ 846
Default VLAN...........................................................................................................................................................847
Port-Based VLANs..................................................................................................................................................847
VLANs and Port Tagging.......................................................................................................................................847
Configuration Task List.........................................................................................................................................848
Creating a Port-Based VLAN......................................................................................................................... 848
Assigning Interfaces to a VLAN..................................................................................................................... 849
Moving Untagged Interfaces......................................................................................................................... 850
Assigning an IP Address to a VLAN............................................................................................................... 851
Configuring Native VLANs.................................................................................................................................... 851
Enabling Null VLAN as the Default VLAN.......................................................................................................... 852
59 VLT Proxy Gateway...........................................................................................................................................853
Proxy Gateway in VLT Domains..........................................................................................................................853
Guidelines for Enabling the VLT Proxy Gateway.......................................................................................854
Enabling the VLT Proxy Gateway..................................................................................................................855
LLDP Organizational TLV for Proxy Gateway.............................................................................................855
Configuring an LLDP VLT Proxy Gateway........................................................................................................ 858
Configuring a Static VLT Proxy Gateway.......................................................................................................... 858
60 Virtual Link Trunking (VLT).............................................................................................................................859
Overview..................................................................................................................................................................859
VLT on Core Switches.....................................................................................................................................860
Contents
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