Users Guide
Conguring a VLT VLAN Peer-Down (Optional).......................................................................................................930
Conguring Enhanced VLT (eVLT) (Optional)..........................................................................................................930
PVST+ Conguration..................................................................................................................................................... 932
Sample PVST+ Conguration................................................................................................................................... 932
VLT Sample Conguration..............................................................................................................................................933
eVLT Conguration Example.......................................................................................................................................... 936
eVLT Conguration Step Examples...........................................................................................................................937
PIM-Sparse Mode Conguration Example..................................................................................................................... 939
Verifying a VLT Conguration.........................................................................................................................................939
Additional VLT Sample Congurations............................................................................................................................943
Conguring Virtual Link Trunking (VLT Peer 1)Conguring Virtual Link Trunking (VLT Peer 2)Verifying a Port-
Channel Connection to a VLT Domain (From an Attached Access Switch).............................................................. 943
Troubleshooting VLT...................................................................................................................................................... 945
Reconguring Stacked Switches as VLT........................................................................................................................ 946
Specifying VLT Nodes in a PVLAN.................................................................................................................................946
Association of VLTi as a Member of a PVLAN..........................................................................................................947
MAC Synchronization for VLT Nodes in a PVLAN.................................................................................................... 947
PVLAN Operations When One VLT Peer is Down.................................................................................................... 948
PVLAN Operations When a VLT Peer is Restarted...................................................................................................948
Interoperation of VLT Nodes in a PVLAN with ARP Requests..................................................................................948
Scenarios for VLAN Membership and MAC Synchronization With VLT Nodes in PVLAN........................................ 948
Conguring a VLT VLAN or LAG in a PVLAN................................................................................................................. 949
Creating a VLT LAG or a VLT VLAN.........................................................................................................................950
Associating the VLT LAG or VLT VLAN in a PVLAN.................................................................................................950
Proxy ARP Capability on VLT Peer Nodes.......................................................................................................................951
Working of Proxy ARP for VLT Peer Nodes..............................................................................................................952
VLT Nodes as Rendezvous Points for Multicast Resiliency.............................................................................................953
Conguring VLAN-Stack over VLT.................................................................................................................................953
IPv6 Peer Routing in VLT Domains Overview.................................................................................................................956
Working of IPv6 Peer Routing..................................................................................................................................957
Synchronization of IPv6 ND Entries in a VLT Domain............................................................................................... 957
Synchronization of IPv6 ND Entries in a Non-VLT Domain....................................................................................... 957
Tunneling of IPv6 ND in a VLT Domain.....................................................................................................................958
Sample Conguration of IPv6 Peer Routing in a VLT Domain...................................................................................958
67 Virtual Routing and Forwarding (VRF).......................................................................962
VRF Overview................................................................................................................................................................962
VRF Conguration Notes...............................................................................................................................................963
DHCP...................................................................................................................................................................... 965
VRF Conguration......................................................................................................................................................... 965
Load VRF CAM........................................................................................................................................................965
Creating a Non-Default VRF Instance...................................................................................................................... 966
Assigning an Interface to a VRF...............................................................................................................................966
Assigning a Front-end Port to a Management VRF..................................................................................................966
View VRF Instance Information................................................................................................................................966
Assigning an OSPF Process to a VRF Instance........................................................................................................ 967
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