Patent ID: 7664043
Filing Date: 2010-02-16
Classification: H04L

Abstract:
1. A method for verifying connectivity in a network comprising a plurality of provider edge routers and a plurality of customer edge routers within at least one customer virtual private network, comprising: establishing at least one network management virtual private network, wherein said network management virtual private network does not support customers and is not associated with any customer interface, comprising at least two provider edge routers of said plurality of provider edge routers; initiating at least one connectivity test between at least one pair of provider edge routers in said at least one network management virtual private network; identifying a plurality of provisioned routes, wherein each of said provisioned routes corresponds to at least one respective edge communication link provisioned in a service provider network; identifying a plurality of active routes, wherein each of said active routes corresponds to at least one respective edge communication link active in said service provider network; comparing said provisioned routes to said active routes for determining operational statuses of said respective edge communication links; generating at least one router connectivity event message in response to said at least one connectivity test; generating at least one route monitoring event message in response to said comparing said provisioned routes to said active routes for determining operational statuses of said respective edge communication links; performing event triangulation using said at least one router connectivity event message and said at least one route monitoring event message; and generating at least one customer site-to-site reachability event message in response to said event triangulation.