Overview.................................................................................................................................1114
VLT on Core Switches....................................................................................................1115
Enhanced VLT..................................................................................................................1116
VLT Terminology...................................................................................................................1116
Configure Virtual Link Trunking......................................................................................... 1117
Important Points to Remember................................................................................... 1117
Configuration Notes.......................................................................................................1118
Primary and Secondary VLT Peers.............................................................................. 1122
RSTP and VLT...................................................................................................................1122
VLT Bandwidth Monitoring...........................................................................................1123
VLT and Stacking.............................................................................................................1123
VLT and IGMP Snooping............................................................................................... 1123
VLT IPv6............................................................................................................................ 1123
VLT Port Delayed Restoration......................................................................................1124
PIM-Sparse Mode Support on VLT..............................................................................1125
VLT Routing .................................................................................................................... 1126
Non-VLT ARP Sync.........................................................................................................1129
RSTP Configuration..............................................................................................................1129
Preventing Forwarding Loops in a VLT Domain.......................................................1129
Sample RSTP Configuration......................................................................................... 1130
Configuring VLT..............................................................................................................1130
PVST+ Configuration...........................................................................................................1142
Sample PVST+ Configuration...................................................................................... 1142
eVLT Configuration Example............................................................................................. 1143
eVLT Configuration Step Examples............................................................................ 1144
PIM-Sparse Mode Configuration Example......................................................................1146
Verifying a VLT Configuration............................................................................................ 1147
Additional VLT Sample Configurations............................................................................ 1150
Troubleshooting VLT........................................................................................................... 1152
Reconfiguring Stacked Switches as VLT..........................................................................1154
Specifying VLT Nodes in a PVLAN.....................................................................................1154
Association of VLTi as a Member of a PVLAN...........................................................1155
MAC Synchronization for VLT Nodes in a PVLAN....................................................1156
PVLAN Operations When One VLT Peer is Down................................................... 1156
PVLAN Operations When a VLT Peer is Restarted................................................... 1156
Interoperation of VLT Nodes in a PVLAN with ARP Requests............................... 1157
Scenarios for VLAN Membership and MAC Synchronization With VLT Nodes
in PVLAN........................................................................................................................... 1157
Configuring a VLT VLAN or LAG in a PVLAN.................................................................. 1159
Creating a VLT LAG or a VLT VLAN.............................................................................1159
Associating the VLT LAG or VLT VLAN in a PVLAN................................................. 1160
Proxy ARP Capability on VLT Peer Nodes........................................................................1161
9.10(0.1)
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