Method of forwarding data packets in a multi-site network, a cor

Details Method of forwarding data packets in a multi-site network, a cor Method of forwarding data packets in a multi-site network, a cor

1995-06-21

1997-06-10

Chin, Wellington

Multiplex communications

Pathfinding or routing

Switching a message which includes an address header

370397, 370409, H04L 1256, H04L 1266

Patent

active

056383770

ABSTRACT:
The header of each packet contains a virtual channel identifier. The virtual path identifier is a packet distribution agent enabling a packet to be distributed when the packet is travelling over a public network, and the virtual path identifier is a packet-routing agent enabling the packet to be routed when said packet is travelling over a private network. Each time a packet is transferred from a private network to a public network, routing data contained in the virtual path identifier is shifted to a reserved portion of a virtual channel identifier that is also contained by the packet, and it is replaced by distribution control data. Each time a packet is transferred in the opposite direction, the distribution control data in the packet is replaced by private network internal routing data.

REFERENCES:
patent: 5450406 (1995-09-01), Esaki et al.
patent: 5453981 (1995-09-01), Katsube et al.
patent: 5513178 (1996-04-01), Tanaka
Patent Abstracts of Japan, vol. 17, No. 629 (E-1462) 19 Nov. 1993 & UP-A-05 1999228 (Oki Electric Ind Co Ltd) Aug. 6, 1993.
Patent Abstracts of Japan, vol. 17, No. 328 (E-1385), 22 Jun. 1993 & JP-A-05 037547 (Fujitsu Ltd) Feb. 12, 1993.
Computer Communications, vol. 16, No. 10, Oct. 1993 Jordan Hill, pp. 662-666, W. Chen et al, "Efficient Multicast Source Routing Scheme".

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