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:
Nov. 22, 2011
Filed:
Aug. 04, 2006
Nidhi Bhaskar, San Jose, CA (US);
Nidhi Bhaskar, San Jose, CA (US);
Cisco Technology, Inc., San Jose, CA (US);
Abstract
A technique avoids Internet Protocol (IP) lookup with Multipoint-to-Multipoint (MP2MP) Label Switched Paths (LSPs) in a computer network. According to the novel technique, end nodes of an MP2MP LSP determine a root node of the MP2MP LSP for a particular IP stream, e.g., based on a rendezvous point (RP) of the IP stream. The root node of the MP2MP LSP allocates an inner-label for the particular IP stream, and informs each of the end nodes of the inner-label for that stream. When any one of the end nodes thereafter sources traffic for the particular IP stream, the sourced traffic contains the allocated inner-label for the stream. Upon receiving the traffic for the particular IP stream, an end node may determine the IP stream to which the received traffic belongs based on the MP2MP LSP (e.g., indicated by an outer-label) and the inner-label, i.e., without performing an IP lookup operation.