White Papers

Conguring a VLT VLAN Peer-Down (Optional)................................................................................................ 1010
Conguring Enhanced VLT (Optional).................................................................................................................. 1011
PVST+ Conguration....................................................................................................................................................1013
Sample PVST+ Conguration................................................................................................................................1013
VLT Sample Conguration........................................................................................................................................... 1014
eVLT Conguration Example....................................................................................................................................... 1017
eVLT Conguration Step Examples...................................................................................................................... 1017
PIM-Sparse Mode Conguration Example................................................................................................................ 1019
Verifying a VLT Conguration.....................................................................................................................................1020
Additional VLT Sample Congurations.......................................................................................................................1023
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)..........................................1023
Troubleshooting VLT.................................................................................................................................................... 1025
Reconguring Stacked Switches as VLT...................................................................................................................1026
Specifying VLT Nodes in a PVLAN............................................................................................................................ 1026
Association of VLTi as a Member of a PVLAN................................................................................................... 1027
MAC Synchronization for VLT Nodes in a PVLAN.............................................................................................1027
PVLAN Operations When One VLT Peer is Down............................................................................................. 1028
PVLAN Operations When a VLT Peer is Restarted........................................................................................... 1028
Interoperation of VLT Nodes in a PVLAN with ARP Requests.........................................................................1028
Scenarios for VLAN Membership and MAC Synchronization With VLT Nodes in PVLAN...........................1029
Conguring a VLT VLAN or LAG in a PVLAN...........................................................................................................1030
Creating a VLT LAG or a VLT VLAN.................................................................................................................... 1030
Associating the VLT LAG or VLT VLAN in a PVLAN.......................................................................................... 1031
Proxy ARP Capability on VLT Peer Nodes................................................................................................................ 1032
Working of Proxy ARP for VLT Peer Nodes........................................................................................................1032
VLT Nodes as Rendezvous Points for Multicast Resiliency.................................................................................... 1033
Conguring VLAN-Stack over VLT............................................................................................................................1034
IPv6 Peer Routing in VLT Domains Overview...........................................................................................................1037
IPv6 Peer Routing.................................................................................................................................................. 1037
Synchronization of IPv6 ND Entries in a VLT Domain........................................................................................1037
Synchronization of IPv6 ND Entries in a Non-VLT Domain...............................................................................1038
Tunneling IPv6 ND in a VLT Domain.................................................................................................................... 1038
Sample Conguration of IPv6 Peer Routing in a VLT Domain..........................................................................1039
66 Virtual Routing and Forwarding (VRF)....................................................................................................1043
VRF Overview.............................................................................................................................................................. 1043
VRF Conguration Notes............................................................................................................................................ 1044
DHCP.......................................................................................................................................................................1046
VRF Conguration....................................................................................................................................................... 1046
Loading VRF CAM................................................................................................................................................. 1046
Creating a Non-Default VRF Instance.................................................................................................................1046
Assigning an Interface to a VRF........................................................................................................................... 1047
Assigning a Front-end Port to a Management VRF...........................................................................................1047
View VRF Instance Information............................................................................................................................1047
Assigning an OSPF Process to a VRF Instance................................................................................................. 1048
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