Administrator Guide
Important Points to Remember............................................................................................................................. 925
Conguration Notes................................................................................................................................................ 926
Primary and Secondary VLT Peers........................................................................................................................929
RSTP and VLT..........................................................................................................................................................929
VLT Bandwidth Monitoring.....................................................................................................................................930
VLT and Stacking.....................................................................................................................................................930
VLT and IGMP Snooping........................................................................................................................................ 930
VLT IPv6................................................................................................................................................................... 930
VLT Port Delayed Restoration.................................................................................................................................931
PIM-Sparse Mode Support on VLT........................................................................................................................931
VLT Routing .............................................................................................................................................................933
Non-VLT ARP Sync................................................................................................................................................. 936
RSTP Conguration.......................................................................................................................................................937
Preventing Forwarding Loops in a VLT Domain................................................................................................... 937
Sample RSTP Conguration...................................................................................................................................937
Conguring VLT....................................................................................................................................................... 938
PVST+ Conguration.....................................................................................................................................................948
Sample PVST+ Conguration.................................................................................................................................948
Peer Routing Conguration Example.......................................................................................................................... 949
Dell-1 Switch Conguration.................................................................................................................................... 950
Dell-2 Switch Conguration....................................................................................................................................954
R1 Conguration.......................................................................................................................................................957
Access Switch A1 Congurations and Verication.............................................................................................. 958
eVLT Conguration Example........................................................................................................................................959
eVLT Conguration Step Examples.......................................................................................................................959
PIM-Sparse Mode Conguration Example..................................................................................................................961
Verifying a VLT Conguration...................................................................................................................................... 962
Additional VLT Sample Congurations........................................................................................................................965
Troubleshooting VLT...................................................................................................................................................... 967
Reconguring Stacked Switches as VLT....................................................................................................................968
Specifying VLT Nodes in a PVLAN..............................................................................................................................968
Association of VLTi as a Member of a PVLAN.................................................................................................... 969
MAC Synchronization for VLT Nodes in a PVLAN..............................................................................................969
PVLAN Operations When One VLT Peer is Down...............................................................................................970
PVLAN Operations When a VLT Peer is Restarted.............................................................................................970
Interoperation of VLT Nodes in a PVLAN with ARP Requests.......................................................................... 970
Scenarios for VLAN Membership and MAC Synchronization With VLT Nodes in PVLAN............................ 970
Conguring a VLT VLAN or LAG in a PVLAN............................................................................................................ 972
Creating a VLT LAG or a VLT VLAN...................................................................................................................... 972
Associating the VLT LAG or VLT VLAN in a PVLAN........................................................................................... 973
Proxy ARP Capability on VLT Peer Nodes.................................................................................................................. 974
Working of Proxy ARP for VLT Peer Nodes..........................................................................................................974
VLT Nodes as Rendezvous Points for Multicast Resiliency......................................................................................975
Conguring VLAN-Stack over VLT..............................................................................................................................976
IPv6 Peer Routing in VLT Domains Overview............................................................................................................ 979
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