Reference Guide
Configuring a Static VLT Proxy Gateway......................................................................................... 972
64 Virtual Link Trunking (VLT).......................................................................... 974
Overview........................................................................................................................................... 974
VLT on Core Switches.................................................................................................................975
Multiple VLT.................................................................................................................................976
VLT Terminology...............................................................................................................................977
Configure Virtual Link Trunking....................................................................................................... 978
Important Points to Remember................................................................................................. 978
Configuration Notes................................................................................................................... 978
RSTP and VLT..............................................................................................................................982
VLT Bandwidth Monitoring.........................................................................................................982
VLT and Stacking.........................................................................................................................983
VLT and IGMP Snooping.............................................................................................................983
VLT Port Delayed Restoration.................................................................................................... 983
PIM-Sparse Mode Support on VLT.............................................................................................983
RSTP Configuration.......................................................................................................................... 985
Preventing Forwarding Loops in a VLT Domain........................................................................985
Sample RSTP Configuration....................................................................................................... 986
Configuring VLT..........................................................................................................................986
Configuring a VLT Interconnect.................................................................................................987
Enabling VLT and Creating a VLT Domain.................................................................................987
Configuring a VLT Backup Link..................................................................................................988
Configuring a VLT Port Delay Period.........................................................................................989
Reconfiguring the Default VLT Settings (Optional) .................................................................. 989
Connecting a VLT Domain to an Attached Access Device (Switch or Server).........................990
Configuring a VLT VLAN Peer-Down (Optional)........................................................................991
Configuring Enhanced VLT (eVLT) (Optional)............................................................................991
VLT Sample Configuration............................................................................................................... 994
eVLT Configuration Example............................................................................................................997
eVLT Configuration Step Examples........................................................................................... 998
PIM-Sparse Mode Configuration Example....................................................................................1000
Verifying a VLT Configuration........................................................................................................ 1001
Additional VLT Sample Configurations..........................................................................................1004
Configuring Virtual Link Trunking (VLT Peer 1)Configuring Virtual Link Trunking (VLT Peer
2)Verifying a Port-Channel Connection to a VLT Domain (From an Attached Access
Switch).......................................................................................................................................1005
Troubleshooting VLT...................................................................................................................... 1007
Reconfiguring Stacked Switches as VLT........................................................................................1008
Specifying VLT Nodes in a PVLAN................................................................................................. 1009
Association of VLTi as a Member of a PVLAN..........................................................................1010
MAC Synchronization for VLT Nodes in a PVLAN....................................................................1010