Multiplex communications – Data flow congestion prevention or control – Control of data admission to the network
Reexamination Certificate
2008-04-22
2008-04-22
Pham, Chi (Department: 2616)
Multiplex communications
Data flow congestion prevention or control
Control of data admission to the network
C370S238000, C709S241000
Reexamination Certificate
active
10616793
ABSTRACT:
The present invention provides methods for deflecting the routing data packets in an IP network to avoid overloaded links and to alleviate link congestion. One method in accordance with the present invention is, when the next link on the shortest route path is congested, to deflect a data packet to an adjacent node with a decreasing cost to the destination that is not the next hop on the shortest route path to the destination. A further method in accordance with the present invention deflects a data packet to an intra-PoP node with a small increase in cost to the destination to avoid a congested link. These and other methods in accordance with the present invention may be used alone or in combination as a method for deflection routing data packets to alleviate and avoid link congestion in an IP network.
REFERENCES:
patent: 5093824 (1992-03-01), Coan et al.
patent: 5933425 (1999-08-01), Iwata
patent: 6154444 (2000-11-01), Masuo et al.
patent: 6363319 (2002-03-01), Hsu
Bhattacharyya Supratik
Diot Christophe
Iyer Sundar
Taft Nina
Pham Chi
Phan Tri H.
Sprint Communications Company L.P.
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