Patent ID: 7801024

Claim:
A method for assuring a component circuit transported in an aggregated circuit restores correctly after the aggregated circuit experiences a fault comprising: restoring the aggregated circuit on a new route, wherein the aggregated circuit on the new route begins at an aggregated circuit source switch and ends at an aggregated circuit destination switch; for each component circuit transported in the aggregated circuit, accessing component circuit identification and route wherein the component circuit route is defined by a source segment from a component circuit source switch to the aggregated circuit source switch, the aggregated circuit on the new route, and a destination segment from the aggregated circuit destination switch to a component circuit destination switch; forwarding a component circuit integrity check message from the aggregated circuit source switch to the component circuit source switch assessing functional status of the component circuit source segment; forwarding a component circuit integrity check message from the aggregated circuit destination switch to the component circuit destination switch assessing functional status of the component destination segment; and if the component circuit source segment and/or the destination segment are not functional, releasing the component circuit end-to-end thereby triggering an end-to-end restoration of the component circuit.