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. 17, 2012
Filed:
Feb. 24, 2006
Thomas D. Nadeau, Hampton, NH (US);
Monique Jeanne Morrow, Zuerich, CH;
W. Mark Townsley, Pensacola, FL (US);
James N. Guichard, Groton, MA (US);
George Leonard Swallow, Boston, MA (US);
Thomas D. Nadeau, Hampton, NH (US);
Monique Jeanne Morrow, Zuerich, CH;
W. Mark Townsley, Pensacola, FL (US);
James N. Guichard, Groton, MA (US);
George Leonard Swallow, Boston, MA (US);
Cisco Technology, Inc., San Jose, CA (US);
Abstract
A pseudowire verification framework gathers and maintains status of individual pseudowires by aggregating the state of the individual node hops defining the pseudowire. The framework provides complete assessment of a network by gathering status feedback from network nodes (forwarding entities) that are inaccessible directly from a requesting node by employing an intermediate forwarding entity as a proxy for inquiring on behalf of the requesting node. Therefore, status regarding inaccessible pseudowires is obtainable indirectly from nodes able to 'see' the particular pseudowire. Configurations further assess multihop pseudowires including a plurality of network segments; in which each segment defines a pseudowire hop including forwarding entities along the pseudowire path. In this manner, pseudowire health and status is gathered and interrogated for nodes (forwarding) entities unable to directly query the subject pseudowire via intermediate forwarding entities.