Service Manual
Overview.........................................................................................................................................................................847
VLT on Core Switches.............................................................................................................................................848
Enhanced VLT.......................................................................................................................................................... 848
VLT Terminology............................................................................................................................................................ 849
Congure Virtual Link Trunking.................................................................................................................................... 849
Important Points to Remember............................................................................................................................. 849
Conguration Notes................................................................................................................................................. 851
Primary and Secondary VLT Peers........................................................................................................................853
RSTP and VLT..........................................................................................................................................................854
VLT Bandwidth Monitoring.....................................................................................................................................854
VLT and IGMP Snooping........................................................................................................................................ 854
VLT IPv6................................................................................................................................................................... 854
VLT Port Delayed Restoration................................................................................................................................855
PIM-Sparse Mode Support on VLT.......................................................................................................................855
VLT Routing .............................................................................................................................................................857
Non-VLT ARP Sync................................................................................................................................................. 859
RSTP Conguration...................................................................................................................................................... 859
Preventing Forwarding Loops in a VLT Domain...................................................................................................859
Sample RSTP Conguration...................................................................................................................................860
Conguring VLT....................................................................................................................................................... 860
PVST+ Conguration.....................................................................................................................................................870
Sample PVST+ Conguration.................................................................................................................................870
eVLT Conguration Example......................................................................................................................................... 871
eVLT Conguration Step Examples....................................................................................................................... 872
PIM-Sparse Mode Conguration Example..................................................................................................................874
Verifying a VLT Conguration.......................................................................................................................................874
Additional VLT Sample Congurations.........................................................................................................................877
Troubleshooting VLT...................................................................................................................................................... 879
Reconguring Stacked Switches as VLT....................................................................................................................880
Specifying VLT Nodes in a PVLAN...............................................................................................................................881
Association of VLTi as a Member of a PVLAN..................................................................................................... 881
MAC Synchronization for VLT Nodes in a PVLAN.............................................................................................. 882
PVLAN Operations When One VLT Peer is Down...............................................................................................882
PVLAN Operations When a VLT Peer is Restarted.............................................................................................882
Interoperation of VLT Nodes in a PVLAN with ARP Requests.......................................................................... 882
Scenarios for VLAN Membership and MAC Synchronization With VLT Nodes in PVLAN............................ 883
Conguring a VLT VLAN or LAG in a PVLAN............................................................................................................ 884
Creating a VLT LAG or a VLT VLAN......................................................................................................................884
Associating the VLT LAG or VLT VLAN in a PVLAN...........................................................................................885
Proxy ARP Capability on VLT Peer Nodes..................................................................................................................886
Working of Proxy ARP for VLT Peer Nodes.........................................................................................................886
VLT Nodes as Rendezvous Points for Multicast Resiliency......................................................................................887
Conguring VLAN-Stack over VLT............................................................................................................................. 888
57 Virtual Extensible LAN (VXLAN).............................................................................................................. 892
Overview.........................................................................................................................................................................892
Components of VXLAN network.................................................................................................................................893
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