Patent ID: 7898971

Claim:
A method for determining a root cause of a problem in a communication network, comprising: retrieving provisioning and configuration data, access interface alarm information, and network facility status data related to the communication network by a diagnostic system, wherein the retrieving comprises: retrieving first provisioning and configuration data and the network facility status data from a hub router and a spoke router within the communication network, wherein the network facility status data comprises a virtual access interface connectivity status and a link and protocol status from the hub router and the spoke router within the communication network; retrieving second provisioning and configuration data from an inventory database associated with the communication network; and retrieving the access interface alarm information from a fault monitoring system associated with the communication network; and identifying the root cause of the problem of the communication network, based upon the first provisioning and configuration data, the access interface alarm information, and network facility status data retrieved from the hub router and the spoke router, the second provisioning and configuration data retrieved from the inventory database, and the access interface alarm information retrieved from the fault monitoring system.