Users Guide

For example, as shown, after the VLTi is down, VLT peer1 learns the MAC address of Host 2:
VLT Peer 2 is not synchronized with the MAC address of Host 2 because the VLTi link is down. When traffic from Host 1 is sent
to VLT Peer 2, VLT Peer 2 floods the traffic.
When the VLT backup link is enabled, the secondary VLT Peer 2 identifies the node liveliness through the backup link. If the
primary is up, the secondary peer brings down VLT port channels. The traffic from Host 1 reaches VLT Peer 1 and then reaches
the destination, Host 2. In this case, the traffic is unicasted instead of flooding, as shown:
Virtual Link Trunking
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