Multiplex communications – Diagnostic testing – Using oam cells
Reexamination Certificate
2004-12-28
2010-12-21
Moe, Aung S (Department: 2474)
Multiplex communications
Diagnostic testing
Using oam cells
C370S236200
Reexamination Certificate
active
07855968
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.
REFERENCES:
patent: 6052722 (2000-04-01), Taghadoss
patent: 6411598 (2002-06-01), McGlade
patent: 6601185 (2003-07-01), Bass et al.
patent: 7359331 (2008-04-01), Takamichi
patent: 2002/0021670 (2002-02-01), Shimada
patent: 2002/0167895 (2002-11-01), Zhu et al.
patent: 2003/0058106 (2003-03-01), Ikematsu
patent: 2003/0133417 (2003-07-01), Badt, Jr.
patent: 2003/0137932 (2003-07-01), Nishioka et al.
patent: 2004/0160895 (2004-08-01), Holmgren et al.
patent: 2004/0184407 (2004-09-01), Pok et al.
patent: 2005/0099949 (2005-05-01), Mohan et al.
patent: 2005/0099952 (2005-05-01), Mohan et al.
patent: 2005/0099954 (2005-05-01), Mohan et al.
patent: 2005/0099955 (2005-05-01), Mohan et al.
patent: 2005/0185576 (2005-08-01), Sugawara et al.
patent: 2005/0185652 (2005-08-01), Iwamoto
patent: 2006/0031482 (2006-02-01), Mohan et al.
patent: 2006/0092847 (2006-05-01), Mohan
Squire; “Metro Ethernet Forum OAM”; Metro Ethernet Forum; pp. 1-25.
“Making Universal Broadband Access A Reality”; Ethernet in the First Mile Alliance (EFMA); http://www.efmalliance.org/whitepaper.html; pp. 1-14.
“Bringing Carrier-Class Management to Ethernet in the First Mile”; Metrobility Optical Systems; pp. 1-8.
“Service delivery technologies for Metro Ethernet Networks”; Nortel Networks; pp. 1-10.
“Layer 2 Protocol Conformance Testing for Ethernet switches”; Net-O2 Technologies; pp. 1-16.
Finn; “Metro Ethernet Connection Management”; IEEE Interim meeting; Jan. 2004; pp. 1-77.
Iwamura; “OAM Flow of Ethernet OAM”; International Telecommunication Union; Feb. 2004; pp. 1-9.
Mohan; “Ethernet OAM Update Overview & Technical Aspects”; Nortel Networks; May 18, 2004; 17 pages.
International Telecommunication Union (ITU-T); Part II of the Report of WP 3/13; Study Group 13—Report 48; Telecommunication Standardization Sector; COM 13-R48-E; Apr. 2004; 148 pgs.
European Search Report dated Oct. 2, 2009.
Elie-Dit-Cosaque David
Kerckhove Tony Van
Sridhar Kamakshi
Vissers Maarten Petrus Joseph
Alcatel Lucent
Garlick & Harrison & Markison
Haile Awet
Moe Aung S
Smith Jessica W.
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