Service Manual
60 VLT Proxy Gateway........................................................................................993
Proxy Gateway in VLT Domains.......................................................................................................993
Guidelines for Enabling the VLT Proxy Gateway.......................................................................994
Enabling the VLT Proxy Gateway............................................................................................... 995
LLDP Organizational TLV for Proxy Gateway............................................................................ 995
Sample Configuration for a VLT Proxy Gateway....................................................................... 997
Configuring an LLDP VLT Proxy Gateway....................................................................................... 998
Configuring a Static VLT Proxy Gateway.........................................................................................998
61 Virtual Link Trunking (VLT)........................................................................ 1000
Overview.........................................................................................................................................1000
VLT on Core Switches...............................................................................................................1001
Enhanced VLT........................................................................................................................... 1001
VLT Terminology............................................................................................................................ 1002
Configure Virtual Link Trunking..................................................................................................... 1003
Important Points to Remember............................................................................................... 1003
Configuration Notes.................................................................................................................1004
Primary and Secondary VLT Peers...........................................................................................1008
RSTP and VLT............................................................................................................................1008
VLT Bandwidth Monitoring...................................................................................................... 1008
VLT and Stacking...................................................................................................................... 1009
VLT and IGMP Snooping.......................................................................................................... 1009
VLT IPv6.................................................................................................................................... 1009
VLT Port Delayed Restoration..................................................................................................1009
PIM-Sparse Mode Support on VLT...........................................................................................1010
VLT Routing ...............................................................................................................................1011
Non-VLT ARP Sync....................................................................................................................1013
RSTP Configuration.........................................................................................................................1014
Preventing Forwarding Loops in a VLT Domain...................................................................... 1014
Sample RSTP Configuration......................................................................................................1014
Configuring VLT.........................................................................................................................1015
PVST+ Configuration......................................................................................................................1026
Sample PVST+ Configuration...................................................................................................1027
eVLT Configuration Example......................................................................................................... 1028
eVLT Configuration Step Examples..........................................................................................1028
PIM-Sparse Mode Configuration Example....................................................................................1030
Verifying a VLT Configuration.........................................................................................................1031
Additional VLT Sample Configurations..........................................................................................1034
Troubleshooting VLT......................................................................................................................1036
Reconfiguring Stacked Switches as VLT........................................................................................1038
Specifying VLT Nodes in a PVLAN..................................................................................................1038
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