Concept Guide
RSTP and VLT.........................................................................................................................................................1016
VLT Bandwidth Monitoring....................................................................................................................................1016
VLT and Stacking....................................................................................................................................................1016
VLT and IGMP Snooping........................................................................................................................................1016
VLT IPv6...................................................................................................................................................................1017
VLT Port Delayed Restoration............................................................................................................................... 1017
PIM-Sparse Mode Support on VLT...................................................................................................................... 1017
VLT Routing ............................................................................................................................................................1019
Non-VLT ARP Sync................................................................................................................................................1022
RSTP Conguration..................................................................................................................................................... 1023
Preventing Forwarding Loops in a VLT Domain..................................................................................................1023
Sample RSTP conguration..................................................................................................................................1023
Conguring VLT......................................................................................................................................................1024
PVST+ Conguration................................................................................................................................................... 1034
Sample PVST+ Conguration............................................................................................................................... 1035
Peer Routing Conguration Example.........................................................................................................................1035
Dell-1 Switch Conguration...................................................................................................................................1036
Dell-2 Switch Conguration..................................................................................................................................1040
R1 Conguration.....................................................................................................................................................1043
Access Switch A1 Congurations and Verication.............................................................................................1044
eVLT Conguration Example...................................................................................................................................... 1045
eVLT Conguration Step Examples..................................................................................................................... 1045
PIM-Sparse Mode Conguration Example................................................................................................................1047
Verifying a VLT Conguration.....................................................................................................................................1048
Additional VLT Sample Congurations....................................................................................................................... 1051
Troubleshooting VLT.................................................................................................................................................... 1053
Reconguring Stacked Switches as VLT.................................................................................................................. 1054
Specifying VLT Nodes in a PVLAN............................................................................................................................ 1054
Association of VLTi as a Member of a PVLAN...................................................................................................1055
MAC Synchronization for VLT Nodes in a PVLAN............................................................................................ 1055
PVLAN Operations When One VLT Peer is Down.............................................................................................1056
PVLAN Operations When a VLT Peer is Restarted........................................................................................... 1056
Interoperation of VLT Nodes in a PVLAN with ARP Requests.........................................................................1056
Scenarios for VLAN Membership and MAC Synchronization With VLT Nodes in PVLAN.......................... 1056
Conguring a VLT VLAN or LAG in a PVLAN...........................................................................................................1058
Creating a VLT LAG or a VLT VLAN.................................................................................................................... 1058
Associating the VLT LAG or VLT VLAN in a PVLAN......................................................................................... 1059
Proxy ARP Capability on VLT Peer Nodes................................................................................................................1060
Working of Proxy ARP for VLT Peer Nodes....................................................................................................... 1060
VLT Nodes as Rendezvous Points for Multicast Resiliency.....................................................................................1061
Conguring VLAN-Stack over VLT.............................................................................................................................1061
IPv6 Peer Routing in VLT Domains Overview.......................................................................................................... 1065
IPv6 Peer Routing..................................................................................................................................................1065
Synchronization of IPv6 ND Entries in a VLT Domain....................................................................................... 1065
Synchronization of IPv6 ND Entries in a Non-VLT Domain.............................................................................. 1066
32
Contents