发明名称 |
Optical relay system and network control device |
摘要 |
Provided is an optical relay system (10) which is capable of suppressing wasteful power consumption of an entire system to a low level. The optical relay system (10) includes a plurality of relay devices (30) and a network control device (20). The network control device (20) causes an optical signal to be regenerated by a regenerative repeater (35) within the relay device (30) existing at an upstream of the relay device (30) reporting that the optical signal has deteriorated by a degree exceeding a predetermined level. Further, the network control device (20) causes the regenerative repeater (35) to stop regenerating the signal in a case where deterioration of the signal remains within an allowable range even when the regenerative repeater (35) stops regenerating the signal. |
申请公布号 |
EP2395684(A1) |
申请公布日期 |
2011.12.14 |
申请号 |
EP20110169000 |
申请日期 |
2011.06.07 |
申请人 |
HITACHI, LTD. |
发明人 |
IWASAWA, TAKUYA;NODA, KENTA;SUZUKI, TAKAYUKI |
分类号 |
H04B10/07;H04B10/27;H04B10/29;H04J14/00;H04J14/02;H04L12/24;H04M7/00;H04Q3/52 |
主分类号 |
H04B10/07 |
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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