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. 19, 2011
Filed:
Sep. 06, 2005
David Elie-dit-cosaque, Richardson, TX (US);
Kamakshi Sridhar, Plano, TX (US);
Maarten Petrus Joseph Vissers, Huizen, NL;
Jessy Rouyer, Ft. Worth, TX (US);
David Elie-Dit-Cosaque, Richardson, TX (US);
Kamakshi Sridhar, Plano, TX (US);
Maarten Petrus Joseph Vissers, Huizen, NL;
Jessy Rouyer, Ft. Worth, TX (US);
Alcatel Lucent, Paris, FR;
Abstract
A system and method for securing an Ethernet Connectivity Fault Management (CFM) domain defined on a Virtual Local Area Network (VLAN). In one embodiment, the scheme includes, responsive to registering by an external port with the VLAN, whereby the VLAN is extended to include the external port, monitoring by a boundary Maintenance End Point (MEP) node of the Ethernet CFM domain to determine if bidirectional control frame flow (e.g., Continuity Check (CC) frame flow) is observed thereat; and, responsive to determining by the boundary MEP node that there is no bidirectional control frame flow therethrough, generating an alarm indicative of a potential breach of the Ethernet CFM domain by the external port.