Users Guide

56 Tunneling.................................................................................................................. 855
Conguring a Tunnel...................................................................................................................................................... 855
Conguring Tunnel Keepalive Settings........................................................................................................................... 856
Conguring a Tunnel Interface....................................................................................................................................... 856
Conguring Tunnel Allow-Remote Decapsulation............................................................................................................857
Conguring the Tunnel Source Anylocal......................................................................................................................... 857
57 Uplink Failure Detection (UFD)..................................................................................858
Feature Description........................................................................................................................................................858
How Uplink Failure Detection Works.............................................................................................................................. 859
UFD and NIC Teaming....................................................................................................................................................860
Important Points to Remember......................................................................................................................................860
Conguring Uplink Failure Detection............................................................................................................................... 861
Clearing a UFD-Disabled Interface................................................................................................................................. 862
Displaying Uplink Failure Detection................................................................................................................................. 863
Sample Conguration: Uplink Failure Detection..............................................................................................................865
58 Upgrade Procedures..................................................................................................867
Get Help with Upgrades.................................................................................................................................................867
59 Virtual LANs (VLANs)............................................................................................... 868
Default VLAN.................................................................................................................................................................868
Port-Based VLANs.........................................................................................................................................................869
VLANs and Port Tagging................................................................................................................................................869
Conguration Task List................................................................................................................................................... 870
Creating a Port-Based VLAN....................................................................................................................................870
Assigning Interfaces to a VLAN.................................................................................................................................871
Moving Untagged Interfaces.................................................................................................................................... 872
Assigning an IP Address to a VLAN.......................................................................................................................... 873
Conguring Native VLANs..............................................................................................................................................873
Enabling Null VLAN as the Default VLAN....................................................................................................................... 874
60 VLT Proxy Gateway................................................................................................... 875
Proxy Gateway in VLT Domains......................................................................................................................................875
Guidelines for Enabling the VLT Proxy Gateway....................................................................................................... 876
Enabling the VLT Proxy Gateway..............................................................................................................................877
LLDP Organizational TLV for Proxy Gateway............................................................................................................877
Sample Conguration for a VLT Proxy Gateway....................................................................................................... 878
Conguring an LLDP VLT Proxy Gateway.......................................................................................................................879
Conguring a Static VLT Proxy Gateway........................................................................................................................ 879
61 Virtual Link Trunking (VLT)......................................................................................... 881
Overview........................................................................................................................................................................ 881
VLT on Core Switches..............................................................................................................................................882
Enhanced VLT..........................................................................................................................................................882
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