Reference Guide

Virtual Link Trunking (VLT) | 315
Figure 22-8. show running-config vlt Command Output on VLT peer switches
Figure 22-9. show vlt statistics Command Output on VLT peer switches
Sample Configuration: Virtual Link Trunking
To configure virtual link trunking, you must create a VLT domain, configure a backup link and
interconnect trunk, and connect the peer switches in a VLT domain to an attached access device (switch or
server).
Figure 22-10 and Figure 22-11 show a sample configuration of virtual link trunking on each VLT peer
switch.
Figure 22-12 shows how to verify the connection to a VLT domain from an attached switch.
FTOS#VLTpeer1#show running-config vlt
!
vlt domain 30
peer-link port-channel 60
back-up destination 10.11.200.18
FTOS#VLTpeer2#show running-config vlt
!
vlt domain 30
peer-link port-channel 60
back-up destination 10.11.200.20
FTOS_VLTpeer1#show vlt statistics
VLT Statistics
----------------
HeartBeat Messages Sent: 930
HeartBeat Messages Received: 909
ICL Hello's Sent: 927
ICL Hello's Received: 910
Domain Mismatch Errors: 0
Version Mismatch Errors: 0
Config Mismatch Errors: 0