VNX Datamover Failedover Manually - Switch port Shows VPC port down

Hi Team,

I have a VNX 7600 which has 3 datamovers, found issue in primary DM accessing from external network.

Manually failed over to Server4 and Server2 (Primary) is now standby.

No issues with the NAS checked multiple time and the Server2 connected to cisco switch says VPC port down is this an expected behaviour.

All links are up on Standby DM Side, will failback brings the switch port Up.

Production data requires confirmation if this is anticipated behavior. @nandas