Setup Guide

Conguring Tunnel source anylocal Decapsulation....................................................................................................894
Guidelines for Conguring Multipoint Receive-Only Tunnels................................................................................... 894
Multipoint Receive-Only Tunnels................................................................................................................................. 894
55 Uplink Failure Detection (UFD)................................................................................................................ 895
Feature Description....................................................................................................................................................... 895
How Uplink Failure Detection Works...........................................................................................................................896
UFD and NIC Teaming................................................................................................................................................... 897
Important Points to Remember....................................................................................................................................897
Conguring Uplink Failure Detection...........................................................................................................................898
Clearing a UFD-Disabled Interface.............................................................................................................................. 899
Displaying Uplink Failure Detection..............................................................................................................................899
Sample Conguration: Uplink Failure Detection.........................................................................................................900
56 Upgrade Procedures................................................................................................................................ 901
Get Help with Upgrades................................................................................................................................................901
57 Virtual LANs (VLANs)..............................................................................................................................902
Default VLAN................................................................................................................................................................. 903
Port-Based VLANs........................................................................................................................................................ 903
VLANs and Port Tagging.............................................................................................................................................. 903
Conguration Task List..................................................................................................................................................904
Creating a Port-Based VLAN.................................................................................................................................904
Assigning Interfaces to a VLAN............................................................................................................................. 904
Moving Untagged Interfaces................................................................................................................................. 905
Assigning an IP Address to a VLAN.......................................................................................................................906
Conguring Native VLANs........................................................................................................................................... 906
Enabling Null VLAN as the Default VLAN...................................................................................................................907
58 Virtual Link Trunking (VLT)...................................................................................................................... 908
Overview........................................................................................................................................................................ 908
VLT Terminology........................................................................................................................................................911
Layer-2 Trac in VLT Domains............................................................................................................................... 912
Interspersed VLANs................................................................................................................................................. 913
VLT on Core Switches............................................................................................................................................. 913
Enhanced VLT...........................................................................................................................................................914
Congure Virtual Link Trunking.....................................................................................................................................915
Important Points to Remember..............................................................................................................................915
Conguration Notes.................................................................................................................................................916
Primary and Secondary VLT Peers.........................................................................................................................919
RSTP and VLT...........................................................................................................................................................919
VLT Bandwidth Monitoring.....................................................................................................................................920
VLT and Stacking.....................................................................................................................................................920
VLT and IGMP Snooping........................................................................................................................................ 920
VLT IPv6................................................................................................................................................................... 920
VLT Port Delayed Restoration................................................................................................................................920
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