Setup Guide
Congure Virtual Link Trunking...................................................................................................................................1024
Important Points to Remember............................................................................................................................1024
Conguration Notes...............................................................................................................................................1025
Primary and Secondary VLT Peers...................................................................................................................... 1028
RSTP and VLT........................................................................................................................................................ 1029
VLT Bandwidth Monitoring................................................................................................................................... 1029
VLT and Stacking................................................................................................................................................... 1029
VLT and IGMP Snooping.......................................................................................................................................1029
VLT IPv6..................................................................................................................................................................1030
VLT Port Delayed Restoration.............................................................................................................................. 1030
PIM-Sparse Mode Support on VLT..................................................................................................................... 1030
VLT Routing ........................................................................................................................................................... 1032
Non-VLT ARP Sync................................................................................................................................................1035
RSTP Conguration.....................................................................................................................................................1036
Preventing Forwarding Loops in a VLT Domain..................................................................................................1036
Sample RSTP conguration..................................................................................................................................1036
Conguring VLT......................................................................................................................................................1037
PVST+ Conguration................................................................................................................................................... 1047
Sample PVST+ Conguration............................................................................................................................... 1048
Peer Routing Conguration Example.........................................................................................................................1048
Dell-1 Switch Conguration...................................................................................................................................1049
Dell-2 Switch Conguration..................................................................................................................................1053
R1 Conguration.....................................................................................................................................................1056
Access Switch A1 Congurations and Verication.............................................................................................1057
eVLT Conguration Example...................................................................................................................................... 1058
eVLT Conguration Step Examples..................................................................................................................... 1058
PIM-Sparse Mode Conguration Example............................................................................................................... 1060
Verifying a VLT Conguration......................................................................................................................................1061
Additional VLT Sample Congurations.......................................................................................................................1064
Troubleshooting VLT.................................................................................................................................................... 1066
Reconguring Stacked Switches as VLT...................................................................................................................1067
Specifying VLT Nodes in a PVLAN............................................................................................................................ 1067
Association of VLTi as a Member of a PVLAN...................................................................................................1068
MAC Synchronization for VLT Nodes in a PVLAN.............................................................................................1068
PVLAN Operations When One VLT Peer is Down.............................................................................................1069
PVLAN Operations When a VLT Peer is Restarted........................................................................................... 1069
Interoperation of VLT Nodes in a PVLAN with ARP Requests.........................................................................1069
Scenarios for VLAN Membership and MAC Synchronization With VLT Nodes in PVLAN...........................1069
Conguring a VLT VLAN or LAG in a PVLAN............................................................................................................1071
Creating a VLT LAG or a VLT VLAN..................................................................................................................... 1071
Associating the VLT LAG or VLT VLAN in a PVLAN..........................................................................................1072
Proxy ARP Capability on VLT Peer Nodes................................................................................................................ 1073
Working of Proxy ARP for VLT Peer Nodes........................................................................................................1073
VLT Nodes as Rendezvous Points for Multicast Resiliency.................................................................................... 1074
Conguring VLAN-Stack over VLT............................................................................................................................ 1074
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