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:
Apr. 03, 2007
Filed:
May. 17, 2002
Reginald Beer, Eastleigh, GB;
Paul Nicholas Cashman, Alton, GB;
Paul Hooton, Eastleigh, GB;
Ian David Judd, Winchester, GB;
Robert Frank Maddock, Christchurch, GB;
Neil Morris, Southsea, GB;
Robert Bruce Nicholson, Southsea, GB;
Barry Douglas Whyte, Winchester, GB;
Reginald Beer, Eastleigh, GB;
Paul Nicholas Cashman, Alton, GB;
Paul Hooton, Eastleigh, GB;
Ian David Judd, Winchester, GB;
Robert Frank Maddock, Christchurch, GB;
Neil Morris, Southsea, GB;
Robert Bruce Nicholson, Southsea, GB;
Barry Douglas Whyte, Winchester, GB;
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method and apparatus for recovery from faults in a loop network () is provided. The loop network () has a host means (), a first loop and a second loop (), a plurality of ports () connected to each of the loops () and a control device () on or connected to each loop () with bypass control over at least one of the ports () connected to the loop (). In the event of a failure on the first loop (), the host means () instructs the bypassing of at least one port () on the first loop (), the host means () sending the instructions via the control device () on or connected to the second loop (). The host means () may determine the physical topology of the ports () on the first and second loops () such that when a failure is reported to the host means () by a port () on the first loop (), the host means () instructs the bypassing of a port () in a specific relationship to the reporting port () on the first loop (). The host means () may instruct the bypassing of all ports () on the first loop () and subsequently selectively un-bypass ports () to ascertain the location of a faulty port or ports.