Patent ID: 7889728

Claim:
A network switch, comprising an ingress port to receive a packet of data from a source address in a first network domain that is to be transmitted to a destination address in a second network domain; a logical interface assignor to assign, in the network switch, at least two virtual local area network (VLAN) tag identifiers to the packet; a forwarding engine to forward the packet to an assigned egress interface in accordance with information associated with one of the at least two VLAN tag identifiers that are assigned in the network switch; a packet tag modifier, responsive to a configuration of the egress interface and to one of the at least two VLAN tag identifiers that are assigned in the network switch, to assign an egress tag state to the packet prior to egress at the egress interface; and a physical egress port associated with the egress interface to egress the packet to the destination address.