发明名称 |
METHOD AND APPARATUS FOR PATH SELECTION |
摘要 |
<p>Embodiments of the present invention disclose a path selecting method and apparatus. The method includes: computing an end-to-end path for a newly added service according to network topology and a wavelength constraint, and assigning a wavelength to the path; computing performance of each existing service and performance of the newly added service in a network according to physical impairment information collected in the network, where the physical impairment information includes a gain reference spectrum of each optical amplifier in the network; and performing impairment check on performance of each service, and performing path selection for the newly added service according to a result of the impairment check. The apparatus includes a path computation module, a performance computation module and an impairment check module. According to the embodiments, efficiency of network update or rerouting is improved.</p> |
申请公布号 |
EP2706708(A2) |
申请公布日期 |
2014.03.12 |
申请号 |
EP20110782989 |
申请日期 |
2011.05.24 |
申请人 |
HUAWEI TECHNOLOGIES CO., LTD. |
发明人 |
HAN, JIANRUI;XU, MINGMING;SHI, LEI;TAN, LIN |
分类号 |
H04L12/54;H04J14/02;H04L12/721;(IPC1-7):H04L12/56 |
主分类号 |
H04L12/54 |
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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