Users Guide
Primary and Secondary VLT Peers........................................................................................................................928
RSTP and VLT..........................................................................................................................................................928
VLT Bandwidth Monitoring.....................................................................................................................................929
VLT and Stacking.....................................................................................................................................................929
VLT and IGMP Snooping........................................................................................................................................ 929
VLT IPv6................................................................................................................................................................... 929
VLT Port Delayed Restoration................................................................................................................................930
PIM-Sparse Mode Support on VLT.......................................................................................................................930
VLT Routing .............................................................................................................................................................932
Non-VLT ARP Sync................................................................................................................................................. 935
RSTP Conguration.......................................................................................................................................................936
Preventing Forwarding Loops in a VLT Domain................................................................................................... 936
Sample RSTP Conguration...................................................................................................................................936
Conguring VLT........................................................................................................................................................937
PVST+ Conguration.....................................................................................................................................................947
Sample PVST+ Conguration.................................................................................................................................947
Peer Routing Conguration Example.......................................................................................................................... 948
Dell-1 Switch Conguration.....................................................................................................................................949
Dell-2 Switch Conguration....................................................................................................................................953
R1 Conguration...................................................................................................................................................... 956
Access Switch A1 Congurations and Verication...............................................................................................957
eVLT Conguration Example........................................................................................................................................958
eVLT Conguration Step Examples.......................................................................................................................958
PIM-Sparse Mode Conguration Example.................................................................................................................960
Verifying a VLT Conguration....................................................................................................................................... 961
Additional VLT Sample Congurations........................................................................................................................964
Troubleshooting VLT......................................................................................................................................................966
Reconguring Stacked Switches as VLT.................................................................................................................... 967
Specifying VLT Nodes in a PVLAN..............................................................................................................................967
Association of VLTi as a Member of a PVLAN.....................................................................................................968
MAC Synchronization for VLT Nodes in a PVLAN..............................................................................................968
PVLAN Operations When One VLT Peer is Down.............................................................................................. 969
PVLAN Operations When a VLT Peer is Restarted.............................................................................................969
Interoperation of VLT Nodes in a PVLAN with ARP Requests.......................................................................... 969
Scenarios for VLAN Membership and MAC Synchronization With VLT Nodes in PVLAN............................ 969
Conguring a VLT VLAN or LAG in a PVLAN............................................................................................................. 971
Creating a VLT LAG or a VLT VLAN.......................................................................................................................971
Associating the VLT LAG or VLT VLAN in a PVLAN........................................................................................... 972
Proxy ARP Capability on VLT Peer Nodes..................................................................................................................973
Working of Proxy ARP for VLT Peer Nodes......................................................................................................... 973
VLT Nodes as Rendezvous Points for Multicast Resiliency......................................................................................974
Conguring VLAN-Stack over VLT..............................................................................................................................975
IPv6 Peer Routing in VLT Domains Overview............................................................................................................ 978
IPv6 Peer Routing....................................................................................................................................................978
Synchronization of IPv6 ND Entries in a VLT Domain......................................................................................... 978
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Contents