The type of this port associated to the IPMVLAN. receiverPort(1) is the receiver port associated to the IPMVLAN, senderPort(2) is the sender port associated to the IPMVLAN. In the VLAN Stacking environment, these ports are the VLAN Stacking ports. Configuration of IPMVLAN logical/physical receiver port on multiple IPMVlans, that are associated with same IPv4/IPv6 multicast group addresses are not allowed.