White Papers
Interspersed VLANs................................................................................................................................................ 999
VLT on Core Switches............................................................................................................................................ 999
Enhanced VLT........................................................................................................................................................ 1000
Congure Virtual Link Trunking................................................................................................................................... 1001
Important Points to Remember.............................................................................................................................1001
Conguration Notes...............................................................................................................................................1002
Primary and Secondary VLT Peers...................................................................................................................... 1005
RSTP and VLT........................................................................................................................................................ 1005
VLT Bandwidth Monitoring...................................................................................................................................1006
VLT and Stacking................................................................................................................................................... 1006
VLT and IGMP Snooping.......................................................................................................................................1006
VLT IPv6..................................................................................................................................................................1006
VLT Port Delayed Restoration...............................................................................................................................1007
PIM-Sparse Mode Support on VLT......................................................................................................................1007
VLT Routing ........................................................................................................................................................... 1009
Non-VLT ARP Sync................................................................................................................................................ 1012
RSTP Conguration......................................................................................................................................................1013
Preventing Forwarding Loops in a VLT Domain.................................................................................................. 1013
Sample RSTP Conguration..................................................................................................................................1013
Conguring VLT...................................................................................................................................................... 1014
PVST+ Conguration................................................................................................................................................... 1024
Sample PVST+ Conguration............................................................................................................................... 1024
Peer Routing Conguration Example.........................................................................................................................1025
Dell-1 Switch Conguration................................................................................................................................... 1026
Dell-2 Switch Conguration..................................................................................................................................1030
R1 Conguration..................................................................................................................................................... 1033
Access Switch A1 Congurations and Verication.............................................................................................1034
eVLT Conguration Example...................................................................................................................................... 1035
eVLT Conguration Step Examples..................................................................................................................... 1035
PIM-Sparse Mode Conguration Example................................................................................................................1037
Verifying a VLT Conguration..................................................................................................................................... 1038
Additional VLT Sample Congurations....................................................................................................................... 1041
Troubleshooting VLT.................................................................................................................................................... 1043
Reconguring Stacked Switches as VLT...................................................................................................................1044
Specifying VLT Nodes in a PVLAN............................................................................................................................ 1044
Association of VLTi as a Member of a PVLAN...................................................................................................1045
MAC Synchronization for VLT Nodes in a PVLAN............................................................................................ 1045
PVLAN Operations When One VLT Peer is Down............................................................................................. 1046
PVLAN Operations When a VLT Peer is Restarted........................................................................................... 1046
Interoperation of VLT Nodes in a PVLAN with ARP Requests.........................................................................1046
Scenarios for VLAN Membership and MAC Synchronization With VLT Nodes in PVLAN...........................1046
Conguring a VLT VLAN or LAG in a PVLAN...........................................................................................................1048
Creating a VLT LAG or a VLT VLAN.................................................................................................................... 1048
Associating the VLT LAG or VLT VLAN in a PVLAN......................................................................................... 1049
Proxy ARP Capability on VLT Peer Nodes................................................................................................................1050
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