Patent ID: 7065041
Filing Date: 2006-06-20
Classification: H04L

Abstract:
1. A method for establishing resilient paths through an asynchronous transfer mode (ATM) network including at least an ingress media gateway, an egress media gateway, a first ATM switch, a second ATM switch, a link A connecting said egress media gateway to said first ATM switch, a link B connecting said first ATM switch to said ingress media gateway, a link C connecting said egress media gateway to said second ATM switch, a link D connecting said second ATM switch to said ingress media gateway, said method comprising: a. setting up a primary Switched Virtual Channel (SVC) connection from said egress media gateway to said ingress media gateway by using a specified ATM end system address (AESA) of a port on said ingress media gateway over said link A; and, b. setting up a backup SVC connection using the specified AESA from said egress media gateway to said ingress media gateway over said link C, wherein at least one primary SVC connection and one backup SVC connection are established between said egress media gateway and said ingress media gateway over different routes for a same call between an egress end office and an ingress end office.