Patent ID: 8144715
Filing Date: 2012-03-27
Classification: H04L

Abstract:
1. A method of interworking a MultiProtocol Label Switched (MPLS) network and an Ethernet network, the method comprising the steps of: associating a Backbone Service Instance Identifier (I-SID) value in the Ethernet network with a service instance in the Ethernet network that is to span between the Ethernet network and the MPLS network; communicating the I-SID value to an ingress node on the MPLS network; deriving a MPLS service identifier for the service instance in the MPLS network from the I-SID value that was associated with the service instance in the Ethernet network; determining a set of egress nodes on the MPLS network from the MPLS service identifier; signaling, by the ingress node on the MPLS network, a setup of at least one pseudowire for the service instance in the MPLS network; wherein a value of the MPLS service identifier for the service instance in the MPLS network is the same as the I-SID˜value that was associated with the service instance in the Ethernet network.