SESSION MANAGEMENT METHOD IN ROUTE COMPUTATION DEVICE, AND ITS ROUTE COMPUTATION DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a session management method in a route computation device in which independence of a route computation means and a protocol means is raised, and the route computation device.

SOLUTION: The route computation device includes: the protocol means 212; a path computation means 211; and a session management means 213. The protocol means 212 executes transmission and reception of a protocol message by establishing a session with a route computation requesting device or other route computation device. The route computation means 211 execute route computation. The session management means 213 instructs retrieval/start/end of the session of the protocol means 212. The session management means 213 manages an order of route computation devices to be passed through in route computation for over a plurality of domains. Alternatively, the protocol means 212 may manage the order of route computation devices to be passed through in the route computation over the plurality of domains.

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