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:
Jan. 05, 2016
Filed:
Nov. 09, 2011
Djamel Ould-brahim, Kanata, CA;
Terry Bush, Parker, TX (US);
Djamel Ould-Brahim, Kanata, CA;
Terry Bush, Parker, TX (US);
Telefonaktiebolaget L M Ericsson (publ), Stockholm, SE;
Abstract
In one aspect, the present invention addresses Layer-3 (L3) connection monitoring between two 'multi-attached' host nodes that are interconnected via an intervening communication network having a known network topology. The present invention provides the two-fold benefit of rapid connection failure detection and failure location determination. In one or more embodiments, the present invention 'pinpoints' the failure location, improving the intelligence of any triggered failure recovery mechanism and/or providing better, more meaningful failure reporting. A BFD session is established between the local and remote host nodes for each L3 communication path between them, e.g., for each unique pairing of local and remote network attachment points. Upon the occurrence of an L3 connection failure, the pattern of up/down states for these BFD sessions is analyzed, along with knowledge of the involved network topology, to determine the apparent location of the L3 connection failure.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile