Patent ID: 7447167

Claim:
A method for producing and maintaining a repository of service level test points for network based Virtual Private Networks (VPNs) comprising: selecting to perform said method for a single Autonomous System (AS) configuration or for a multiple AS configuration in a network for at least one VPN of interest; when said selecting results in selecting a single AS configuration, then: finding next hops for said at least one VPN of interest; finding VPN prefixes associated with said at least one VPN of interest; and determining a set of Label Switching Paths (LSPs) in use for said at least one VPN of interest from said next hops and said VPN prefixes; when said selecting results in selecting a multiple AS configuration, then: finding routers in a present AS associated with said at least one VPN of interest; and finding all Provider Edge (PE) routers and Autonomous System Border Routers (ASBRs) associated with said at least one VPN of interest; determining a set of LSPs in use for said at least one VPN of interest from said routers; and making said set of LSPs available to other processes.