Connectivity Guide

Congure VLT
Verify that both VLT peer devices are running the same OS version. For VRRP operation, congure VRRP groups and L3 routing on each
VLT peer.
Congure the following settings on each VLT peer device separately.
1 (Optional) To prevent loops in VLT domain, enable the STP globally using the spanning-tree mode {rstp | rapid-pvst |
mst}
command.
2 Create a VLT domain by conguring the same domain ID on each peer using the vlt-domain command.
3 (Optional) To override the default VLT primary election mechanism based on the system MAC addresses of the VLT nodes, congure
a VLT node priority for each of the VLT nodes using the primary-priority command. Enter a lower priority value for the desired
primary VLT peer and a higher priority value for the desired secondary VLT peer.
4 Congure the VLTi interfaces on each peer using the discovery-interface command. After you congure both sides of the
VLTi, the primary and secondary roles in the VLT domain are automatically assigned if primary priority is not congured.
5 (Optional) Manually recongure the default VLT MAC address. Congure the VLT MAC address in both VLT peers.
6 (Optional) Congure a time interval to delay bringing up VLT ports after reload or when VLTi come up after failure.
7 Congure the VLT backup link the heartbeat use with the backup destination {ip-address | ipv6 ipv6–address }
[vrf management] [interval interval-time] command.
1040
Virtual Link Trunking