Hi@Weenie_D,
The priority of the VGMP group is lowered by 2 only when:
A physical interface in the VGMP group fails.
A Eth-Trunk interface in the VGMP group fails. The failure of a member interface of the Eth-Trunk does not affect the priority of the VGMP group.
A member interface of the VGMP group in a VLAN fails.
A member interface of an IP-Link fails.
Hope to help you.