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.
Patent No.:
Date of Patent:
Jan. 16, 2001
Filed:
Jun. 20, 1997
Wilson C. W. Luk, San Francisco, CA (US);
Keith S. Fischer, Sunnyvale, CA (US);
Kenrick M. Kutzler, San Jose, CA (US);
Nortel Networks Corporation, Montreal, CA;
Abstract
A method and an apparatus for isolating a communication fault within a token ring network are described. The token ring network includes a number of stations, each of which is configured to generate or repeat beaconing data indicating a network communication fault. The method requires firstly isolating each station of the token ring network in a closed-loop station ring. A location in each of these isolated station rings is then monitored for the transmission of beaconing data indicating a communication fault within the respective station ring. If the transmission of such beaconing data is not detected, the station is reconnected to the token ring network. On the other hand, should the transmission of such beaconing data be detected, the station is maintained within the closed-loop station ring. In this way, faulty stations are isolated from the token ring network.