发明申请
- 专利标题: Communication Node and Communication System
- 专利标题(中): 通信节点和通信系统
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申请号: US12482593申请日: 2009-06-11
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公开(公告)号: US20090310482A1公开(公告)日: 2009-12-17
- 发明人: Machiko ASAIE , Kazuhiro Kusama , Naomichi Nonaka
- 申请人: Machiko ASAIE , Kazuhiro Kusama , Naomichi Nonaka
- 专利权人: Hitachi Communication Technologies, Ltd.
- 当前专利权人: Hitachi Communication Technologies, Ltd.
- 优先权: JP2008-157376 20080617
- 主分类号: G06F11/00
- IPC分类号: G06F11/00
摘要:
In a network wherein a data plane for communicating user data, and a control plane for managing data forwarders are configured of different media, the path teardown of the data plane which is forwarding the data is prevented when a fault has occurred in only the control plane. When the GMPLS controller of the control plane has detected refresh timeout with respect to an adjacent node (101 in FIG. 1), it checks whether or not a transmission equipment corresponding to a faulty controller has a fault (102), and it maintains a path state (103) in a case where the fault is limited to the control plane. Thus, the exchange of refresh messages with the adjacent node is continued without cleaning up the resources of the transmission equipment (104 through 107).
公开/授权文献
- US08279758B2 Communication node and communication system 公开/授权日:2012-10-02