Path reroute in a computer network

Details Path reroute in a computer network Path reroute in a computer network

2008-03-07

2010-11-23

Pham, Chi H (Department: 2471)

Multiplex communications

Fault recovery

Bypass an inoperative switch or inoperative element of a...

C370S221000, C370S217000

Reexamination Certificate

active

07839767

ABSTRACT:
In an example embodiment, a method is provided that receives a first label from an area border routing device. Here, the first label is associated with a first routing device, which is an immediate downstream neighbor of the area border routing device. The first label is then associated with a second label that is associated with a second routing device. In an example, the first label is received from the area border routing device along a path. Data that includes the second label subsequently is received and the second label in the data is replaced with the first label upon a failure of the area border router. The data then is encapsulated in an alternate path to the first routing device.

REFERENCES:
patent: 7330435 (2008-02-01), Guerin et al.
patent: 2006/0153067 (2006-07-01), Vasseur et al.
patent: 2007/0036072 (2007-02-01), Raj et al.
patent: 2007/0174483 (2007-07-01), Raj et al.

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