Patent ID: 7894353

Claim:
A method for diagnosing a route in a network based on a Diameter protocol, comprising: generating, by a source Diameter node, a diagnosis message according to diagnosis parameters, and sending the diagnosis message; and adding, by an intermediate Diameter node having received the diagnosis message, diagnosis information thereof to the diagnosis message, and forwarding the diagnosis message until the diagnosis message is forwarded to a Diameter server capable of processing the diagnosis message or a Diameter node incapable of forwarding the diagnosis message; and generating, by the Diameter server capable of processing the diagnosis message or the Diameter node incapable of forwarding the diagnosis message, a response message of the diagnosis message, and sending the response message carrying diagnosis information thereof, information in the diagnosis message, and a response type; adding, by an intermediate Diameter node having received the response message, diagnosis information thereof to the response message, and forwarding the response message until the response message is forwarded to the source Diameter node; and parsing, by the source Diameter node, the response message to obtain route related information.