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. 04, 2008
Filed:
Mar. 28, 2005
Thomas D. Nadeau, Hampton, NH (US);
Michael T. Piecuch, Nashua, NH (US);
Vanson Lim, Nashua, NH (US);
Robert Hanzl, Hostivice, CS;
Thomas D. Nadeau, Hampton, NH (US);
Michael T. Piecuch, Nashua, NH (US);
Vanson Lim, Nashua, NH (US);
Robert Hanzl, Hostivice, CS;
Cisco Technology, Inc., San Jose, CA (US);
Abstract
A method and apparatus for producing and maintaining a repository of service level test points for network based VPNs is presented. A determination is made regarding whether there is more than one Autonomous System (AS) in a network for one or more VPNs. When there is not more than one AS then next hops are found for the VPN. Next, VPN prefixes associated with the VPN are found and a set of Label Switching Paths (LSPs) in use for the VPN are produced. When the determination is that there is more than one AS then routers in the present AS associated with the VPN are found. VPN label stacks are used to find all Provider Edge (PE) routers associated with the VPN. A set of LSPs in use for the VPN is produced from the routers and the VPN label stacks