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:
Nov. 25, 2003
Filed:
Sep. 09, 1999
Applicant:
Inventors:
Guy L. Grenier, Ottawa, CA;
Bruce D. Keats, Kanata, CA;
Assignee:
Nortel Networks Limited, St. Laurent, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 1/110 ;
U.S. Cl.
CPC ...
G06F 1/110 ;
Abstract
A method of switching between groups of working and protection channels/paths in the presence of signal degrade in an ATM network is disclosed. Signal degrade is monitored on a subset of virtual paths (“VP”s) within a VP group or within a subset of virtual channels within a VC group. If signal degrade is detected on this subset of VPs or VCs, all VPs or VCs within the VPG or VCG are switched from a working entity to a protection entity. Network elements and software embodying such a method are also disclosed.