摘要
针对电力通信网中广泛使用的同步数字体系(SDH)设备,管理网通常采用数字通信通道(DCC)组网,最大带宽只有768 kbit/s,网管数据传输缓慢无法满足逐步扩大规模的电力通信网需求的问题,本文提出一种基于ETPPP提升管理网带宽的方案。该方案在承载的网管信息速率达到DCC通道设计上限的90%时,封装在以太网帧中的网管数据将会传输至2M-ETPPP接口,然后利用ETPPP提取出网管信息,将其复用映射至同步传送模块STM-N帧净荷中,从光口传输至相邻网元,组建一个2.048 Mbit/s带宽的管理网。与DCC网络方案相比,此方案可在不增加以太网盘等硬件资源投入的情况下,将SDH网管系统的带宽提升为DCC组网方案的2.6倍以上。
In response to the prevalent use of SDH equipment in current electric power telecommunication networks,which employ DCC for constructing management networks with a maximum bandwidth of 768 kbit/s,and the slow transmission of network management data can not meet the demand of the gradually expanding scale of the power communication network.This paper presents a scheme based on ETPPP to augment the bandwidth of the management network.When the network management information rate carried by this solution reaches 90%of the design upper limit of the DCC channels,the management data encapsulated within Ethernet frames is rerouted to the 2M-ETPPP interface.Then,ETPPP is used to extract network management information,which is multiplexed and mapped to the STM-N frame payload and transmitted from the optical port to adjacent network elements.Through this scheme,a management network with a bandwidth of 2.048 Mbit/s is constructed.This scheme has demonstrated an ability to increase the bandwidth of SDH network management systems by over 2.6 times compared to DCC networking schemes without necessitating additional hardware resources such as Ethernet switches.
作者
谭长乐
杨虎林
李函坤
TAN Changle;YANG Hulin;LI Hankun(Graduate Department,Wuhan Research Institute of Posts and Telecommunications,Wuhan,430074,China;Fiberhome Communication Technology Co.,Ltd,Wuhan,430205,China)
出处
《网络新媒体技术》
2025年第4期64-70,共7页
Network New Media Technology
关键词
电力通信网
SDH设备
管理网带宽
以太网
数字通信通道
electric power telecommunication network
SDH equipment
management network bandwidth
ethernet
DCC
