Administrator Guide

Dynamic Route Leaking................................................................................................................................................ 1018
Configuring Route Leaking with Filtering........................................................................................................... 1019
Configuring Route Leaking without Filtering Criteria..................................................................................... 1020
Chapter 64: Virtual Link Trunking (VLT)...................................................................................1022
Overview......................................................................................................................................................................... 1023
VLT on Core Switches........................................................................................................................................... 1025
VLT Terminology........................................................................................................................................................... 1025
Important Points to Remember................................................................................................................................. 1025
Configuration Notes..................................................................................................................................................... 1026
Primary and Secondary VLT Peers........................................................................................................................... 1029
RSTP and VLT................................................................................................................................................................1029
VLT Bandwidth Monitoring......................................................................................................................................... 1029
VLT and High Availability.............................................................................................................................................1030
VLT and IGMP Snooping............................................................................................................................................. 1030
VLT and Stacking.......................................................................................................................................................... 1030
VLT IPv6..........................................................................................................................................................................1030
VLT Port Delayed Restoration................................................................................................................................... 1030
PIM-Sparse Mode Support on VLT........................................................................................................................... 1031
VLT Routing ...................................................................................................................................................................1032
VLT Unicast Routing...............................................................................................................................................1032
VLT Multicast Routing............................................................................................................................................1033
Non-VLT ARP Sync...................................................................................................................................................... 1034
RSTP Configuration......................................................................................................................................................1034
Preventing Forwarding Loops in a VLT Domain...............................................................................................1034
Sample RSTP Configuration................................................................................................................................. 1035
Configuring VLT.............................................................................................................................................................1035
Configuring a VLT Interconnect.......................................................................................................................... 1035
Enabling VLT and Creating a VLT Domain........................................................................................................ 1036
Configuring a VLT Backup Link............................................................................................................................ 1037
Configuring a VLT Port Delay Period..................................................................................................................1037
Reconfiguring the Default VLT Settings (Optional) .......................................................................................1037
Connecting a VLT Domain to an Attached Access Device (Switch or Server)....................................... 1038
Configuring a VLT VLAN Peer-Down (Optional).............................................................................................1039
Configuring Enhanced VLT (eVLT) (Optional).................................................................................................1039
VLT Sample Configuration..................................................................................................................................... 1041
eVLT Configuration Example...................................................................................................................................... 1044
PIM-Sparse Mode Configuration Example..............................................................................................................1046
Verifying a VLT Configuration....................................................................................................................................1046
Additional VLT Sample Configurations.....................................................................................................................1050
Troubleshooting VLT.....................................................................................................................................................1051
Reconfiguring Stacked Switches as VLT................................................................................................................ 1053
Specifying VLT Nodes in a PVLAN........................................................................................................................... 1053
Configuring a VLT VLAN or LAG in a PVLAN.........................................................................................................1056
Creating a VLT LAG or a VLT VLAN...................................................................................................................1056
Associating the VLT LAG or VLT VLAN in a PVLAN...................................................................................... 1057
Proxy ARP Capability on VLT Peer Nodes..............................................................................................................1058
VLT Nodes as Rendezvous Points for Multicast Resiliency............................................................................... 1059
Configuring VLAN-Stack over VLT...........................................................................................................................1059
Configure BFD in VLT Domain................................................................................................................................... 1062
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