Users Guide

Non-VLT ARP Sync...................................................................................................................................................911
RSTP Conguration........................................................................................................................................................ 911
Preventing Forwarding Loops in a VLT Domain.....................................................................................................911
Sample RSTP Conguration................................................................................................................................... 912
Conguring VLT........................................................................................................................................................912
Conguring a VLT Interconnect..............................................................................................................................912
Conguring a VLT Backup Link...............................................................................................................................913
Conguring a VLT Port Delay Period......................................................................................................................914
Reconguring the Default VLT Settings (Optional) ............................................................................................ 914
Connecting a VLT Domain to an Attached Access Device (Switch or Server)................................................ 915
Conguring a VLT VLAN Peer-Down (Optional)..................................................................................................916
Congure Multi-domain VLT (mVLT) (Optional)..................................................................................................916
Verifying a VLT Conguration................................................................................................................................. 918
Connecting a VLT Domain.......................................................................................................................................921
PVST+ Conguration.....................................................................................................................................................925
Sample PVST+ Conguration.................................................................................................................................925
mVLT Conguration Example.......................................................................................................................................926
In Domain 1, congure the VLT domain and VLTi on Peer 1Congure mVLT on Peer 1Add links to the
mVLT port-channel on Peer 1Next, congure the VLT domain and VLTi on Peer 2Congure mVLT on
Peer 2Add links to the mVLT port-channel on Peer 2In Domain 2, congure the VLT domain and VLTi
on Peer 3Congure mVLT on Peer 3Add links to the mVLT port-channel on Peer 3Congure the VLT
domain and VLTi on Peer 4Congure mVLT on Peer 4Add links to the mVLT port-channel on Peer 4
........927
PIM-Sparse Mode Conguration Example.................................................................................................................929
Additional VLT Sample Congurations........................................................................................................................ 930
Conguring Virtual Link Trunking (VLT Peer 1)Conguring Virtual Link Trunking (VLT Peer 2)Verifying a
Port-Channel Connection to a VLT Domain (From an Attached Access Switch)...........................................930
Troubleshooting VLT......................................................................................................................................................932
Specifying VLT Nodes in a PVLAN..............................................................................................................................933
Association of VLTi as a Member of a PVLAN.....................................................................................................934
MAC Synchronization for VLT Nodes in a PVLAN.............................................................................................. 934
PVLAN Operations When One VLT Peer is Down...............................................................................................935
PVLAN Operations When a VLT Peer is Restarted.............................................................................................935
Interoperation of VLT Nodes in a PVLAN with ARP Requests.......................................................................... 935
Scenarios for VLAN Membership and MAC Synchronization With VLT Nodes in PVLAN............................ 935
Conguring a VLT VLAN or LAG in a PVLAN............................................................................................................ 937
Creating a VLT LAG or a VLT VLAN...................................................................................................................... 937
Associating the VLT LAG or VLT VLAN in a PVLAN...........................................................................................938
Proxy ARP Capability on VLT Peer Nodes..................................................................................................................939
Working of Proxy ARP for VLT Peer Nodes.........................................................................................................939
Conguring VLAN-Stack over VLT............................................................................................................................. 940
66 Virtual Router Redundancy Protocol (VRRP)...........................................................................................943
VRRP Overview.............................................................................................................................................................943
VRRP Benets............................................................................................................................................................... 944
VRRP Implementation...................................................................................................................................................944
VRRP Conguration...................................................................................................................................................... 945
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