Method and apparatus for preventing unnecessary retransmission o

Details Method and apparatus for preventing unnecessary retransmission o Method and apparatus for preventing unnecessary retransmission o

1991-09-27

1994-07-05

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

H04J 302

Patent

active

053274261

ABSTRACT:
An improved apparatus and method for routing of messages in a networked system wherein reduced unnecessary retransmission of messages across routers is achieved by examining the address of the source of messages to be forwarded and, if the source of the message is on the transmit side of the router, not retransmitting the message. Further, when messages are originated which do not include source subnet address information, a router receiving such a message will update the source subnet address field of the message with its own source subnet address so as to allow other routers to use the updated source subnet address information in making routing decisions.

REFERENCES:
patent: 4627052 (1986-12-01), Hoare et al.
patent: 4707827 (1987-11-01), Bione et al.
patent: 4737953 (1988-04-01), Koch et al.
patent: 4809265 (1989-02-01), Hart et al.
patent: 5018137 (1991-05-01), Backes et al.
patent: 5081133 (1991-05-01), Tsukakoshi et al.
patent: 5121382 (1992-06-01), Yang et al.

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