Patent ID: 7558274
Filing Date: 2009-07-07
Classification: H04L

Abstract:
1. A method for notifying/communicating at least one failure message from at least one source to at least one destination, the source served by a first network and the destination served by a second network, comprising the steps of: receiving at an interworking facility a first frame which includes a failure notification message and a first destination address in a first format compatible with said first network; forming a second frame of a second format compatible with the second network, the second frame including the failure notification message; and mapping the first destination address to a second destination address specifying in the second format the address of the destination in the second network so that the second network, upon receipt of the second destination address, can route the second frame to the destination; wherein the first frame has an Ethernet format; wherein the first destination address comprises a Virtual Local Area Network (VLAN) tag within the Ethernet-formatted first frame; wherein the second frame has an Asynchronous Transport (ATM) format; and wherein the second destination address comprises an ATM Permanent Virtual Circuit (PVC) tag; wherein the interworking facility interworks the Ethernet format frames with the ATM format frames by the steps of: