Users Guide

53 Tunneling................................................................................................................................................. 858
Conguring a Tunnel......................................................................................................................................................858
Conguring Tunnel Keepalive Settings........................................................................................................................859
Conguring a Tunnel Interface.....................................................................................................................................859
Conguring Tunnel Allow-Remote Decapsulation......................................................................................................860
Conguring Tunnel source anylocal Decapsulation....................................................................................................860
Guidelines for Conguring Multipoint Receive-Only Tunnels....................................................................................861
Multipoint Receive-Only Tunnels..................................................................................................................................861
54 Upgrade Procedures................................................................................................................................ 862
Get Help with Upgrades............................................................................................................................................... 862
55 Virtual LANs (VLANs)..............................................................................................................................863
Default VLAN................................................................................................................................................................. 864
Port-Based VLANs........................................................................................................................................................ 864
VLANs and Port Tagging.............................................................................................................................................. 864
Conguration Task List..................................................................................................................................................865
Creating a Port-Based VLAN.................................................................................................................................865
Assigning Interfaces to a VLAN............................................................................................................................. 866
Moving Untagged Interfaces..................................................................................................................................867
Assigning an IP Address to a VLAN.......................................................................................................................868
Conguring Native VLANs........................................................................................................................................... 868
Enabling Null VLAN as the Default VLAN...................................................................................................................869
56 VLT Proxy Gateway..................................................................................................................................870
Proxy Gateway in VLT Domains................................................................................................................................... 870
Guidelines for Enabling the VLT Proxy Gateway...................................................................................................871
Enabling the VLT Proxy Gateway...........................................................................................................................872
LLDP Organizational TLV for Proxy Gateway.......................................................................................................872
Conguring a Static VLT Proxy Gateway....................................................................................................................875
Conguring an LLDP VLT Proxy Gateway..................................................................................................................875
57 Virtual Link Trunking (VLT).......................................................................................................................876
Overview.........................................................................................................................................................................876
VLT on Core Switches............................................................................................................................................. 877
Enhanced VLT...........................................................................................................................................................877
VLT Terminology.............................................................................................................................................................878
Congure Virtual Link Trunking.................................................................................................................................... 878
Important Points to Remember..............................................................................................................................878
Conguration Notes................................................................................................................................................ 880
Primary and Secondary VLT Peers........................................................................................................................882
RSTP and VLT..........................................................................................................................................................883
VLT Bandwidth Monitoring.....................................................................................................................................883
VLT and IGMP Snooping.........................................................................................................................................883
VLT IPv6................................................................................................................................................................... 883
VLT Port Delayed Restoration................................................................................................................................884
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