发明名称 |
OPTICAL TRANSPORT NETWORK SYSTEM, OPTICAL-SIGNAL TRANSMISSION PATH SELECTING METHOD, AND OPTICAL TRANSMISSION DEVICE |
摘要 |
An optical transport network system includes a plurality of NEs, each transmitting wavelength-multiplexed optical signals. Each NE includes a routing information DB that is used to store reachable area information, which contains identifiers of other NEs in a range within which the optical signals can be transmitted from the own NE without using an REG. A FROM NE includes a path candidate searching unit that searches for a plurality of path candidates for transmitting optical signals from the FROM NE to a TO NE. The TO NE includes a path selecting unit that selects a path for transmitting optical signals from among a plurality of path candidates. The path selecting unit obtains the number of times for which the REG is used for each of the plurality of path candidates; and, based on each number of times that is obtained, selects a path for transmitting the optical signals. |
申请公布号 |
US2013084068(A1) |
申请公布日期 |
2013.04.04 |
申请号 |
US201213686137 |
申请日期 |
2012.11.27 |
申请人 |
FUJITSUT LIMITED;FUJITSUT LIMITED |
发明人 |
TOGO TOSHIHIRO;NOZU YASUKO |
分类号 |
H04J14/02 |
主分类号 |
H04J14/02 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|