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:
Dec. 21, 2010
Filed:
Dec. 28, 2004
David Elie-dit-cosaque, Richardson, TX (US);
Kamakshi Sridhar, Plano, TX (US);
Maarten Petrus Joseph Vissers, Huizen, NL;
Tony Van Kerckhove, Antwerp, BE;
David Elie-Dit-Cosaque, Richardson, TX (US);
Kamakshi Sridhar, Plano, TX (US);
Maarten Petrus Joseph Vissers, Huizen, NL;
Tony Van Kerckhove, Antwerp, BE;
Alcatel Lucent, Paris, FR;
Abstract
A system and method for propagating fault information in an Ethernet OAM network having multiple levels of OAM domains. An Alarm Indication and Suppression (AIS) frame is generated by a Maintenance Intermediate Point (MIP) node upon detecting a fault condition in a first OAM domain, which is transmitted to one or more Maintenance End Points (MEPs) of the first OAM domain. Upon receiving the AIS frames, the MEP nodes are operable generate another AIS frame for propagating to an adjacent higher level second OAM domain. Responsive to the AIS frame from the lower level first OAM domain, any alarms caused in the second OAM domain due to the fault condition in the first OAM domain are suppressed.