思科、KDDI、富士通推动开放光网络部署

C114通信网2023-11-22

C114讯北京时间 11月22日消息（水易）据SDxCentral报道，思科（Cisco Systems）、富士通（Fujitsu）和运营商KDDI最近在日本开通了一条采用开放架构的城域网。该架构将IP层与光传输层结合在一起，可实现平稳运行，并将功耗降低达40%。另外，该网络显示了向全光网络（all-photonic network，APN）架构的持续发展势头。该网络使用思科的NCS5500系列...

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Gartner在接受SDxCentral采访时解释说，供应商的网络部分是将以前使用的波分复用设备集成到思科的路由器中，从而减少了所需的占地面积和功耗。“我们把那些携带收发器的机箱从解决方案中移除，这对于空间受限的环境来说是一个重要的考虑因素。”Bill Gartner表示，“总的来说，这是一个更简单的解决方案。当你想要部署更多容量时，可以将可插拔设备放到路由器中，而不是必须部署基于机架的解决方案。”这些努力还得到了日益增多的开放接口使用量的推动。这一举措将零层（layer-zero）物理光纤与通过该光纤发送流量的一层（layer-one）组件解耦。“客户现在可以从多供应商解决方案中受益。”Bill Gartner说，“DWDM（密集波分复用）是网络中最后一个尚未实现标准化的堡垒，而随着新一代可插拔光器件的出现，它正在打开零层（layer-zero）、一层（layer-one），也正在打开多年来专有解决方案的大门。”“随着容量的增加，总功耗也会增加，但每比特功耗必须降低。客户关注的是每比特成本和每比特功耗，我们必须继续降低这两个指标。”Bill Gartner进一步表示，“我们非常重视降低每比特功耗、成本和空间占用。从10G到100G，总功耗可能会上升，但每比特功耗必须下降。”Bill Gartner补充道，与KDDI和富士通的合作主要是针对100Gb/s和200Gb/s的连接，但随着速度的提高，运营商可以节省更多的成本。“当达到400G时，我们已经观察到高达90%的节省效果。”对于运营商来说，要想扩大网络覆盖范围和提高网络容量，就必须在寻求提高设备架构效率方面下更大功夫。AT&T技术执行副总裁Chris Sambar将其运营商的可持续发展工作称为“green G”。他在最近举行的布鲁克林6G峰会上解释说：“旧设备的耗电量是新设备的六到八倍，因此我们一直在努力关闭旧设备，尽快迁移到新设备上。”据了解，KDDI计划在2028财年结束前，在全日本部署这种新架构的城域网。该运营商还将此项工作作为迈向APN的第一步。这一目标将实现基于光的波长信号的传输，而无需将其转换为电信号进行路由，实现在整个传输过程中保持光信号。今年早些时候，KDDI与其竞争对手NTT达成协议，共同致力于推动光电技术的全球标准化。这项工作得到了NTT于2019年协助成立的创新光学和无线网络全球论坛（IOWN）的支持。","kind":"news","is_publish_news":true,"is_publish_highlight":false,"is_publish_live":false,"is_publish_wemedia":null,"editions":null,"column":"","sentiment":"0","news_tag":"","news_rank":0,"symbols":[],"gpt_button":1,"need_auth":false,"code":"91000000","status":"200"},"commentList":[],"isCommentEnd":true,"newsSizeData":{"likeSize":0,"commentSize":0,"repostSize":0,"favoriteSize":0,"likeStatus":false,"favoriteStatus":false},"APP":{"userAgent":"Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; 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