Reference Guide

Configuring a Static Route......................................................................................................................................779
Sample VRF Configuration............................................................................................................................................779
Route Leaking VRFs....................................................................................................................................................... 785
Dynamic Route Leaking................................................................................................................................................. 786
Configuring Route Leaking without Filtering Criteria.......................................................................................786
Configuring Route Leaking with Filtering............................................................................................................ 788
Chapter 59: Virtual Link Trunking (VLT).................................................................................... 790
Overview........................................................................................................................................................................... 790
VLT on Core Switches.............................................................................................................................................. 791
Enhanced VLT.............................................................................................................................................................791
VLT Terminology............................................................................................................................................................. 792
Configure Virtual Link Trunking................................................................................................................................... 792
Important Points to Remember............................................................................................................................. 792
Configuration Notes................................................................................................................................................. 793
Primary and Secondary VLT Peers....................................................................................................................... 796
RSTP and VLT............................................................................................................................................................796
VLT Bandwidth Monitoring..................................................................................................................................... 797
VLT and IGMP Snooping......................................................................................................................................... 797
VLT IPv6......................................................................................................................................................................797
VLT Port Delayed Restoration................................................................................................................................797
PIM-Sparse Mode Support on VLT...................................................................................................................... 798
VLT Routing ...............................................................................................................................................................799
Non-VLT ARP Sync...................................................................................................................................................801
RSTP Configuration........................................................................................................................................................ 801
Preventing Forwarding Loops in a VLT Domain................................................................................................. 801
Sample RSTP Configuration....................................................................................................................................801
Configuring VLT........................................................................................................................................................ 802
PVST+ Configuration......................................................................................................................................................810
eVLT Configuration Example......................................................................................................................................... 811
PIM-Sparse Mode Configuration Example................................................................................................................ 814
Verifying a VLT Configuration...................................................................................................................................... 814
Additional VLT Sample Configurations....................................................................................................................... 818
Troubleshooting VLT.......................................................................................................................................................819
Reconfiguring Stacked Switches as VLT...................................................................................................................821
Specifying VLT Nodes in a PVLAN..............................................................................................................................821
Configuring a VLT VLAN or LAG in a PVLAN.......................................................................................................... 824
Creating a VLT LAG or a VLT VLAN.....................................................................................................................824
Associating the VLT LAG or VLT VLAN in a PVLAN........................................................................................825
Proxy ARP Capability on VLT Peer Nodes................................................................................................................826
VLT Nodes as Rendezvous Points for Multicast Resiliency................................................................................. 827
Configuring VLAN-Stack over VLT.............................................................................................................................827
Chapter 60: VLT Proxy Gateway.................................................................................................831
Proxy Gateway in VLT Domains................................................................................................................................... 831
Configuring an LLDP VLT Proxy Gateway................................................................................................................834
Chapter 61: Virtual Router Redundancy Protocol (VRRP).......................................................... 836
VRRP Overview...............................................................................................................................................................836
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