发明名称 |
Kommunikationsverwaltungsvorrichtung, Kommunikationsknoten und Datenkommunikationsverfahren |
摘要 |
A communication management apparatus that manages transmission of data in a network in which plural communication nodes are connected via a transmission line in a ring shape, the apparatus including: a network-presence checking unit that transmits a network-presence-check frame in broadcast and generates network connection information indicating a connection state among the connection nodes from a received network-presence-check acknowledge frame, a token-circulation-order determining unit that determines token circulation order; a setup processing unit that performs setup processing for notifying each of the communication nodes of a token circulation destination; a data-frame-communication processing unit that performs transmission and reception of a data frame using a token frame; and a line-connection managing unit that disables, when the network has a ring configuration, any one of ports of any one of the communication nodes to prevent a connection state of the network from becoming a ring shape. |
申请公布号 |
DE112009004913(T8) |
申请公布日期 |
2012.12.13 |
申请号 |
DE20091104913T |
申请日期 |
2009.06.12 |
申请人 |
MITSUBISHI ELECTRIC CORPORATION |
发明人 |
YABUSAKI, TATSUMI;SUGIMOTO, TOMITSUGU;NAKAMURA, MASATO |
分类号 |
H04L12/433 |
主分类号 |
H04L12/433 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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