Routing for a communications network

Details Routing for a communications network Routing for a communications network

2007-10-23

2007-10-23

Pezzlo, John (Department: 2616)

Multiplex communications

Data flow congestion prevention or control

Flow control of data transmission through a network

C370S225000, C709S238000

Reexamination Certificate

active

10194551

ABSTRACT:
For routing in a communications network, alternate paths to a destination are aggregated into a single composite route, prior to onward propagation of the route. Ideally, aggregation is performed at each point of route convergence in the network. Consequently, failure in only one of the paths does not then require that the composite route be withdrawn, and thus visibility of and reaction to the fault is restricted to parts of the network directly affected. The method is particularly applicable to border gateway protocols employed between Autonomous Systems as in, for example, the Internet.

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Rekhter Li: “A Border Gateway Protocol 4 (BGP 4) draft-ietf-idr-bgp4-12.txt” IEEE Draft Network Working Group, ′Online! Jan. 2001, XP002244288.
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Murata A Et Al: “A Routing Policy Description Language for Theinter-Domain Routing Protocol” Electronics and Communications in Japan, Part II—Electronics, Scripta Technica. New York, US, vol. 80, No. 6, part 2, May 1997, pp. 58-65, XP000830930.

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