Patent ID: 7782762
Filing Date: 2010-08-24
Classification: H04L

Abstract:
1. A method for performing reroute operations for data packets when a link failure occurs within a network comprising the steps of: (a) routing a data packet between a headend node and a tailend node; (b) detecting a link failure between the headend node and the tailend node prior to the data packet reaching the tailend node; (c) receiving the data packet at a point of local repair (PLR) node between the headend node and the tailend node; (d) rerouting the data packet through a bypass tunnel at the PLR node back to the headend node and onto the tailend node; and (e) transmitting an error message only from the PLR node to the headend node allowing to use a local bypass tunnel at the headend node to carry a future data packet to the tailend node.