Administrator Guide

Conguring VLT....................................................................................................................................................... 869
Conguring a VLT Interconnect.............................................................................................................................869
Conguring a VLT Backup Link.............................................................................................................................. 870
Conguring a VLT Port Delay Period......................................................................................................................871
Reconguring the Default VLT Settings (Optional) ............................................................................................ 871
Connecting a VLT Domain to an Attached Access Device (Switch or Server)................................................872
Conguring a VLT VLAN Peer-Down (Optional)..................................................................................................873
Congure Multi-domain VLT (mVLT) (Optional)..................................................................................................873
Verifying a VLT Conguration.................................................................................................................................875
Connecting a VLT Domain...................................................................................................................................... 878
PVST+ Conguration.....................................................................................................................................................882
Sample PVST+ Conguration.................................................................................................................................882
mVLT Conguration Example.......................................................................................................................................883
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....... 884
PIM-Sparse Mode Conguration Example.................................................................................................................886
Additional VLT Sample Congurations........................................................................................................................ 887
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)........................................... 887
Troubleshooting VLT......................................................................................................................................................889
Specifying VLT Nodes in a PVLAN..............................................................................................................................890
Association of VLTi as a Member of a PVLAN..................................................................................................... 891
MAC Synchronization for VLT Nodes in a PVLAN...............................................................................................891
PVLAN Operations When One VLT Peer is Down...............................................................................................892
PVLAN Operations When a VLT Peer is Restarted.............................................................................................892
Interoperation of VLT Nodes in a PVLAN with ARP Requests.......................................................................... 892
Scenarios for VLAN Membership and MAC Synchronization With VLT Nodes in PVLAN............................ 892
Conguring a VLT VLAN or LAG in a PVLAN............................................................................................................ 894
Creating a VLT LAG or a VLT VLAN......................................................................................................................894
Associating the VLT LAG or VLT VLAN in a PVLAN...........................................................................................895
Proxy ARP Capability on VLT Peer Nodes..................................................................................................................896
Working of Proxy ARP for VLT Peer Nodes.........................................................................................................896
Conguring VLAN-Stack over VLT..............................................................................................................................897
66 Virtual Router Redundancy Protocol (VRRP).......................................................................................... 900
VRRP Overview.............................................................................................................................................................900
VRRP Benets................................................................................................................................................................901
VRRP Implementation....................................................................................................................................................901
VRRP Conguration...................................................................................................................................................... 902
Conguration Task List............................................................................................................................................902
Setting VRRP Initialization Delay............................................................................................................................910
Sample Congurations....................................................................................................................................................911
VRRP for an IPv4 Conguration............................................................................................................................. 911
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