Patent ID: 7602726
Filing Date: 2009-10-13
Classification: H04L,Y02D

Abstract:
1. A method comprising: receiving, at a call control center, a notification that identifies a failure of at least a portion of a data link and an impact the failure has on a bandwidth associated with the data link; determining, in the call control center, an available bandwidth associated with the data link after the failure responsive to the impact the failure has on the bandwidth associated with the data link received in the notification; transmitting, to a route controller, the available bandwidth for the data link from the call control center, the available bandwidth determined responsive to the received notification, the route controller to receive the available bandwidth from the call control center and to direct utilization of the data link by one or more connections according to the communicated available bandwidth from the call control center; comparing, at the call control center, the available bandwidth associated with the data link after the failure to a bandwidth guaranteed to connections utilizing the data link; releasing, by the call control center, one or more of the connections from the data link based on a configured policy when the bandwidth guaranteed to connections utilizing the data link is greater than the available bandwidth associated with the data link after the failure, wherein the call control center includes a controlled release mechanism to generate the configured policy and to direct an incremental release of connections from the data link based on developing bandwidth limitations; detecting, at the call control center, the data link is recovering from the failure; determining, at the call control center, a new available bandwidth associated with the recovery of the data link from the failure; and delaying transmission of the new available bandwidth to the route controller, from the call control center, for a predetermined period of time, wherein the route controller is configured to divert one or more connections to the data link according to the new available bandwidth received from the call control center.