摘要
传统的自动交换光网络(automatically switched optical network,ASON)技术在承载重要型业务的时候有着很强的保护与恢复策略,并且有着其他承载技术无法比拟的优越性,但客观上也存在一些问题,如其保护策略的强大是以消耗大量的网络带宽资源为代价的,对网络资源的使用率较低。针对此,介绍了一种基于2 Mibit/s速率级别(以下简称"2 M")的ASON新技术,分析了2 M ASON技术相对于传统ASON做出的革新,如2 M ASON通道建立的过程、对节点失效的保护策略以及全新的"先拆后建"的通道恢复机制。由此证明2 M ASON技术在提高网络生存性与网络资源利用率两方面带来的进步。最后,将2 M ASON技术与电力系统中实时性较高的业务有机结合,设计了一种适合承载电力差动保护业务的方案。
Traditional automatically switched optical network （ ASON） technology has strong protection and recovery strategy in bearing important services and incomparable advantages, but it also has some problems such as a great deal of consumption of network bandwidth resource and low use ratio of network resources. Therefore, the paper introduces a kind of new ASON technology based on 2 Mibit/s （thereafter as 2 M） speed grade and analyzes innovation of 2 M ASON technology relative to traditional ASON technology such as construction process of 2 M ASON channel, protection strategy for node failure and a new channel recovery mechanism of demolition before reconstruction. Thereout, it proves advancement of 2 M ASON tech-nology in improving network survivability and use ratio of network resource.. Finally, it combines 2 M ASON technology with services of high practicability in the power system and designs a scheme suitable for bearing electric power differential protection service.
出处
《广东电力》
2017年第12期108-112,共5页
Guangdong Electric Power
关键词
ASON
利用率
恢复机制
automatically switched optical network （ ASON）
use ratio
recovery mechanism
