| 摘要 |
An internetworking system and method enabling efficient communication between networks that use different protocols. A network management station comprises a first connection setting unit, a downstream frame generator, and a frame communication unit. The first connection setting unit establishes a first connection over a network A to reach a gateway network element. The downstream frame generator produces a downstream frame containing identifiers of remote network elements. The frame communication unit sends out the downstream frame through the established first connection, and/or processes an upstream frame received through the same. The gateway network element serves as a mediation device, comprising a second connection setting unit and a frame mediation unit. The second connection setting unit establishes a second connection reaching the network elements, over networks B and C whose protocols are different from that of the network A. The frame mediation unit mediates the transport of downstream frames toward the network elements through the second connection. It also mediates the transmission of upstream frames toward the network management station.
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