Users Guide

Important Points to Remember................................................................................................................................... 848
Conguring Uplink Failure Detection...........................................................................................................................849
Clearing a UFD-Disabled Interface.............................................................................................................................. 850
Displaying Uplink Failure Detection...............................................................................................................................851
Sample Conguration: Uplink Failure Detection.........................................................................................................853
53 Tunneling................................................................................................................................................. 854
Conguring a Tunnel......................................................................................................................................................854
Conguring Tunnel Keepalive Settings....................................................................................................................... 855
Conguring a Tunnel Interface.....................................................................................................................................856
Conguring Tunnel Allow-Remote Decapsulation......................................................................................................856
Conguring Tunnel source anylocal Decapsulation....................................................................................................857
Guidelines for Conguring Multipoint Receive-Only Tunnels................................................................................... 857
Multipoint Receive-Only Tunnels................................................................................................................................. 857
54 Upgrade Procedures................................................................................................................................858
Get Help with Upgrades............................................................................................................................................... 858
55 Virtual LANs (VLANs)..............................................................................................................................859
Default VLAN................................................................................................................................................................. 860
Port-Based VLANs........................................................................................................................................................ 860
VLANs and Port Tagging............................................................................................................................................... 861
Conguration Task List.................................................................................................................................................. 861
Creating a Port-Based VLAN..................................................................................................................................861
Assigning Interfaces to a VLAN............................................................................................................................. 862
Moving Untagged Interfaces..................................................................................................................................863
Assigning an IP Address to a VLAN.......................................................................................................................864
Conguring Native VLANs........................................................................................................................................... 864
Enabling Null VLAN as the Default VLAN.................................................................................................................. 865
56 VLT Proxy Gateway................................................................................................................................. 866
Proxy Gateway in VLT Domains................................................................................................................................... 866
Guidelines for Enabling the VLT Proxy Gateway..................................................................................................867
Enable VLT Proxy Gateway.................................................................................................................................... 868
LLDP Organizational TLV for Proxy Gateway...................................................................................................... 868
LLDP VLT Proxy Gateway in a Square VLT Topology..........................................................................................870
Conguring a Static VLT Proxy Gateway.....................................................................................................................871
Conguring an LLDP VLT Proxy Gateway...................................................................................................................871
57 Virtual Link Trunking (VLT).......................................................................................................................872
Overview.........................................................................................................................................................................872
VLT on Core Switches.............................................................................................................................................875
Enhanced VLT.......................................................................................................................................................... 875
VLT Terminology.............................................................................................................................................................876
Congure Virtual Link Trunking.....................................................................................................................................877
Important Points to Remember..............................................................................................................................877
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