System for determining communication routes in a network

Details System for determining communication routes in a network System for determining communication routes in a network

1992-09-11

1994-09-13

Olms, Douglas W.

Communications: electrical

Continuously variable indicating

With meter reading

340826, 370 60, H04B 338

Patent

active

053472721

ABSTRACT:
A network system capable of speedily selecting an intermediate system which can provide a shortest route of data communication among various intermediate systems even if routing information is not stored on the end system side, and in which the wasteful routing information is not held on the end system side, thereby minimizing an amount of routing information stored. In the network system, each packet for broadcast communication sent from each intermediate system is imparted to an intermediate system-address extracting unit 6 via a reception unit 2 and a packet processing unit 4 in the end system. The management-address extracting unit 6 extracts addresses of the intermediate systems from the packets, and stores these addresses in the management-address storage unit 8. When the packet is transmitted from this end system, the packet processing unit 4 obtains addresses in the management-address storage unit 8 via a route request unit 9, and sends a request of routing information to the intermediate systems having these addresses via a transmission unit 10. When the respective routing information is sent from the intermediate systems to the end system in response to that request, a route selecting unit 5 determines a shortest route to the destination on the basis of each routing information. The packet processing unit 4 request the intermediate system providing the shortest route to relay the packet.

REFERENCES:
patent: 4748660 (1931-05-01), Deveze
patent: 4947390 (1990-08-01), Sheehy
patent: 4984235 (1991-01-01), Hillis et al.
patent: 4984264 (1991-01-01), Katsube
patent: 4987536 (1991-01-01), Humblet
"Internet Transport Protocols", Xerox Corporation, Xerox System Integration Standard, Dec. 1981.

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