| 摘要 |
The avoidance of congestion between a mobile node (MN) and an access router (AR), connected to each other through radio communication, is achieved by reducing the volume of information to be transmitted between the MN and the AR. In particular, for the purpose of realizing the reduction of the information volume to be transmitted between a mobile router (MR) and an access router and the avoidance of congestion, an MR 11 reports information on route optimization, conducted with respect to a communication partner node, through the use of an RO information reporting unit 66 to an upper-layer AR connected thereto and makes a request through the use of an RO proxy requesting unit 65 so that an AR to be connected thereto after next movement conducts route optimization processing instead of the MR. When the MR moves and establishes a connection with a new AR, the MR transmits a route optimization proxy execution request through an execution requesting unit 68 to the new AR. The new AR with which the MR has established a connection after the movement acquires the information on the route optimization for the MR from the AR with which the MR established the connection before the movement and carries out the route optimization processing as the proxy for the MR.
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