MSTP在电信城域传输网中的应用研究
摘要
在过去的几年中,为了适应快速增长的宽带业务需求,人们投入大量的精力改造了用户侧的接入网,使之具备提供各种宽带数据、视频、音频业务的能力。另一方面,长途干线网的容量正向着T比特级进军,核心路由器的处理能力也达到了T比特级,干线网的巨大传输容量已经成为网络发展的坚实基础。但是,传统的本地网的容量和接口能力都难以满足业务疏导、汇聚的要求,于是出现了所谓的“城域裂缝”。
由于历史的原因,电信系统大量使用了SDH设备,使现行城域传输网往往存在以下问题:1、网络接口类型单一,业务提供能力差,资源调度、管理复杂,为大客户组网成本高。2、资源利用率不高。3、光纤资源占用过多。4、网络安全性差。适应快速增长的宽带业务需求。
论文较系统地对近年来可用于电信城域网改造的技术,包括IP over SDH,ATM over SDH和MSTP(多业务传输平台)等,认为MSTP技术的出现是对SDH的一个有效补充,基于SDH的多业务传送节点除应具有标准SDH传送节点所具有的功能外,还具有以下主要功能特征:(1)具有TDM业务、ATM业务或以太网业务的接入功能;(2)具有TDM业务、ATM业务或以太网业务的传送功能,包括点到点的透明传送功能;(3)具有ATM业务或以太网业务的带宽统计复用功能;(4)具有ATM业务或以太网业务映射到SDH虚容器的指配功能。它可以有效缓解现有传输网络存在的种种问题。
论文结合实践经验,提出MSTP在现行城域传输网的发展思路和具体的发展策略。特别是针对大客户专线接入业务,从各方面进行了分析,提出了大客户专线的几种解决方案。并重点分析了在现有传输网络情况下,为某一大型机构设计了一个利用MSTP技术组网的内部专用网方案,完成了系统需求分析、网络设计、设备选型、软件配置等工作。而且这个方案已经通过了相关专家的鉴定。
In recent years, in order to adapt rapid increasing service demand of broadband, people dives into abundant energy to rebuild access network of consumer side to let it possess ability of providing diversified broadband data, video and audio services. On the other hand, the capability of long-distance trunk line is going forward to T bits, at the same time disposal capability of core Router has reached at T bits. The large transmission capability of truck line has already become stabile foundation of network development. But capability and interface capability of traditional LAN is difficult to satisfy the demand of service leading and collection. On the consequence, region crack appeared.
Because of historical reasons, SDH equipments were widely used in telecommunication system. Current metro transmission network usually have such problems: 1、The type of Network Interface is few, the ability of Provision of service is bad, the dispatch and management of resource is not convenient, the cost is high for designing network for big customer. 2、The using efficiency of resources is not high. 3、Fiber resource was taken too much. 4、The Network security is bad. It doesn’t adapt rapid increasing demand of broadband service.
The reconstructive technology which can be used in telecom MAN recent years is systemically analyzed in the paper, such as IP over SDH, ATM over SDH, MSTP etc. The MSTP is a impactful reinforce for SDH, besides having the standard SDH transmission node function, MSTP based on SDH also have follow functions:(1)Have the access function of TDM、ATM and Ethernet; (2) Have the transmission function of TDM、ATM and Ethernet including P2P transparent function; (3)Have bandwidth Statistical Multiplexing function of ATM or Ethernet; (4) Have the function of ATM or Ethernet mapping to SDH Virtual Container. MSTP could effectively alleviate problems on the current network.
With practical experience, the development Strategy of MSTP using in the field of current metro transmission is proposed. Especially to the VIP customer private access service, some plans are analyzed from each aspect and suggested in this paper. In existing situation the scheme of some organization establishing its private transmission network using MSTP is analyzed in the paper. Some works, such as system requirements, network design, equipment types and software configuration are completed. Moreover, the appraisal of this scheme has been passed by correlative experts.
由于历史的原因,电信系统大量使用了SDH设备,使现行城域传输网往往存在以下问题:1、网络接口类型单一,业务提供能力差,资源调度、管理复杂,为大客户组网成本高。2、资源利用率不高。3、光纤资源占用过多。4、网络安全性差。适应快速增长的宽带业务需求。
论文较系统地对近年来可用于电信城域网改造的技术,包括IP over SDH,ATM over SDH和MSTP(多业务传输平台)等,认为MSTP技术的出现是对SDH的一个有效补充,基于SDH的多业务传送节点除应具有标准SDH传送节点所具有的功能外,还具有以下主要功能特征:(1)具有TDM业务、ATM业务或以太网业务的接入功能;(2)具有TDM业务、ATM业务或以太网业务的传送功能,包括点到点的透明传送功能;(3)具有ATM业务或以太网业务的带宽统计复用功能;(4)具有ATM业务或以太网业务映射到SDH虚容器的指配功能。它可以有效缓解现有传输网络存在的种种问题。
论文结合实践经验,提出MSTP在现行城域传输网的发展思路和具体的发展策略。特别是针对大客户专线接入业务,从各方面进行了分析,提出了大客户专线的几种解决方案。并重点分析了在现有传输网络情况下,为某一大型机构设计了一个利用MSTP技术组网的内部专用网方案,完成了系统需求分析、网络设计、设备选型、软件配置等工作。而且这个方案已经通过了相关专家的鉴定。
In recent years, in order to adapt rapid increasing service demand of broadband, people dives into abundant energy to rebuild access network of consumer side to let it possess ability of providing diversified broadband data, video and audio services. On the other hand, the capability of long-distance trunk line is going forward to T bits, at the same time disposal capability of core Router has reached at T bits. The large transmission capability of truck line has already become stabile foundation of network development. But capability and interface capability of traditional LAN is difficult to satisfy the demand of service leading and collection. On the consequence, region crack appeared.
Because of historical reasons, SDH equipments were widely used in telecommunication system. Current metro transmission network usually have such problems: 1、The type of Network Interface is few, the ability of Provision of service is bad, the dispatch and management of resource is not convenient, the cost is high for designing network for big customer. 2、The using efficiency of resources is not high. 3、Fiber resource was taken too much. 4、The Network security is bad. It doesn’t adapt rapid increasing demand of broadband service.
The reconstructive technology which can be used in telecom MAN recent years is systemically analyzed in the paper, such as IP over SDH, ATM over SDH, MSTP etc. The MSTP is a impactful reinforce for SDH, besides having the standard SDH transmission node function, MSTP based on SDH also have follow functions:(1)Have the access function of TDM、ATM and Ethernet; (2) Have the transmission function of TDM、ATM and Ethernet including P2P transparent function; (3)Have bandwidth Statistical Multiplexing function of ATM or Ethernet; (4) Have the function of ATM or Ethernet mapping to SDH Virtual Container. MSTP could effectively alleviate problems on the current network.
With practical experience, the development Strategy of MSTP using in the field of current metro transmission is proposed. Especially to the VIP customer private access service, some plans are analyzed from each aspect and suggested in this paper. In existing situation the scheme of some organization establishing its private transmission network using MSTP is analyzed in the paper. Some works, such as system requirements, network design, equipment types and software configuration are completed. Moreover, the appraisal of this scheme has been passed by correlative experts.
引文
[1] 王健全等,城域 MSTP 技术,机械工业出版社 2005.1.5
[2] 曹蓟光 吴英桦,多业务传送平台(MSTP)技术与应用,人民邮电出版社 2003.11.1
[3] 蔡常天 成钢等,基于 SDH 的多业务传送节点技术要求(报批稿)
[4] 徐宝强 杨秀峰等,光纤通信及网络技术 北京航空航天大学出版社 1999.10
[5] 叶敏,程控数字交换与现代通信网 北京邮电大学出版社 1998.2
[6] 黄锡伟 朱秀昌,宽带通信网络 人民邮电出版社 1998.9
[7] 袁飞,MSTP 发展过程中的关键问题探讨 NETWORK TECHNOLOGY 2006.1.28
[8] 巫伟平,MSTP 技术在城域传输网中的应用 Telecommunications Technology 2005.5
[9] 余浩泽,基于 MSTP 的综合专线网络解决方案 电信网技术 2004.6
[10] 面向未来的新一代 MSTP 电信网技术 2006.3
[2] 曹蓟光 吴英桦,多业务传送平台(MSTP)技术与应用,人民邮电出版社 2003.11.1
[3] 蔡常天 成钢等,基于 SDH 的多业务传送节点技术要求(报批稿)
[4] 徐宝强 杨秀峰等,光纤通信及网络技术 北京航空航天大学出版社 1999.10
[5] 叶敏,程控数字交换与现代通信网 北京邮电大学出版社 1998.2
[6] 黄锡伟 朱秀昌,宽带通信网络 人民邮电出版社 1998.9
[7] 袁飞,MSTP 发展过程中的关键问题探讨 NETWORK TECHNOLOGY 2006.1.28
[8] 巫伟平,MSTP 技术在城域传输网中的应用 Telecommunications Technology 2005.5
[9] 余浩泽,基于 MSTP 的综合专线网络解决方案 电信网技术 2004.6
[10] 面向未来的新一代 MSTP 电信网技术 2006.3