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:
Aug. 24, 2010
Filed:
Dec. 12, 2006
Thomas D. Nadeau, Hampton, NH (US);
George Leonard Swallow, Boston, MA (US);
Danny Prairie, Kanata, CA;
David D. Ward, Somerset, WI (US);
Thomas D. Nadeau, Hampton, NH (US);
George Leonard Swallow, Boston, MA (US);
Danny Prairie, Kanata, CA;
David D. Ward, Somerset, WI (US);
Cisco Technology, Inc., San Jose, CA (US);
Abstract
To reveal link bundles' component links in an MPLS network, transmit a sequence of request and reply packets. For a router receiving a request packet, the packet identifies that link bundles should be revealed, detect the link bundle links connected to the router, and for each, its component links are added to a downstream mapping field (DMF). A link bundle mapping field (LBMF) is also added to the request packet. Each LBMF specifies the component links of that link bundle by pointing to the component links added to the DMF. For a router responding to a request packet with a reply packet, determine if any links in the DMF are component links, and for each, identify a LBMF containing information regarding that link. Each component link in the DMF is processed. The component links in each LBMF are iterated through to ensure each matches the determined links in the DMF.