Method and apparatus for the creation and maintenance of a...

Details Method and apparatus for the creation and maintenance of a... Method and apparatus for the creation and maintenance of a...

2005-03-28

2008-11-04

Shah, Chirag G (Department: 2619)

Multiplex communications

Network configuration determination

Reexamination Certificate

active

07447167

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

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