U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Routing system to interconnect local area networks

Patent 5088090 Issued on February 11, 1992. Estimated Expiration Date: Icon_subject January 31, 2010. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

Routing architecture for a multi-ring local area network
Patent #: 4621362
Issued on: 11/04/1986
Inventor: Sy

Interconnection of communications networks
Patent #: 4627052
Issued on: 12/02/1986
Inventor: Hoare ,   et al.

Communications circuit having an interface for external address decoding
Patent #: 4866421
Issued on: 09/12/1989
Inventor: Szczepanek

Group address translation through a network bridge Patent #: 4933938
Issued on: 06/12/1990
Inventor: Sheehy

Inventor

Application

No. 472904 filed on 01/31/1990

US Classes:

370/402, Bridge between bus systems370/256, Spanning tree370/408, Nodes interconnected in hierarchy to form a tree370/465Adaptive

Examiners

Primary: Olms, Douglas W.
Assistant: Ton, Dang

Attorney, Agent or Firm

International Class

H04J 003/24

Abstract

A transmission system transmits data among interconnected local area networks using a bridge coupled between local area networks which senses whether the data originating node transmitted the data using transparent routing or source routing. The bridges provide interconnection at the MAC-layer and based upon information contained in the MAC-layer header, automatically perform either transparent routing or source routing, depending upon the type of routing used by the data originating node. In addition, the bridge provides source routing over multiple wide area channels to those nodes which use source routing.

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