The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jun. 08, 2004

Filed:

Oct. 27, 1999
Applicant:
Inventors:

David Banks, Bristol, GB;

Duncan Smith, Bristol, GB;

Anthony John Wiley, Bristol, GB;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 1/256 ;
U.S. Cl.
CPC ...
H04L 1/256 ;
Abstract

A network layer bridge includes: plurality of ports for connection to different network segments, a first port and a second port for connection to respective first and second network segments; a memory for storing network layer addresses for nodes with corresponding port identifiers and data link layer addresses, and data link layer addresses of more than one type; and a unit for discovering corresponding port identifier and data link layer address for a network layer address. The bridge forwards a message from a first node to a second node when corresponding port identifiers and data link level addresses for both first and second nodes are stored in the memory; the message being addressed with the network layer address of the second node, and the network layer bridge directing the message through the corresponding port to the corresponding data link level address for the second node.


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