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:
Jul. 10, 2012
Filed:
Jan. 07, 2009
Kamakshi Sridhar, Plano, TX (US);
Atiya Suhail, Plano, TX (US);
David Elie-dit-cosaque, Allen, TX (US);
Kamakshi Sridhar, Plano, TX (US);
Atiya Suhail, Plano, TX (US);
David Elie-Dit-Cosaque, Allen, TX (US);
Alcatel Lucent, Paris, FR;
Abstract
A system, method, and device for monitoring the connectivity of a network that has been configured in a ring topology, such as an Ethernet ring network. The ring network includes a plurality of nodes, each with first port and a second port for forwarding CC messages to respective neighbor nodes, and an MEP for forming and processing the CC messages. Of the plurality of network nodes, neighbor nodes are selected as CC forwarding nodes and, after a database on each node has been configured, the selected nodes begin sending CC messages to each other via the ring network, beginning with transmission to a non-selected node. If a selected node fails to receive an expected CC message, it transmits a fault notification and ceases sending CC messages. The network then reselects CC message forwarding nodes, which begin forwarding CC messages until another fault is detected or the network is otherwise reconfigured.