多域异构光网络互连互通管控机制  

Management and control mechanisms in multi-domain heterogeneous optical networks

作　　者：鲁睿[1] 郑小平[1] 华楠[1] 

机构地区：[1]清华大学电子工程系,北京100084

出　　处：《清华大学学报（自然科学版）》2013年第7期982-990,共9页Journal of Tsinghua University(Science and Technology)

基　　金：国家"九七三"重点基础研究项目(2010CB328203;2010CB328205)

摘　　要：多域异构光网络互连时,管理和控制平面域间互通困难。通过分析和仿真,基于路径计算单元(PCE)的控制机制比其他管理和控制机制在优化跨域路径计算和降低域间交互信息量方面有更好的表现,但在连接控制上存在缺陷。在此基础上,提出一种基于PCE和域间连接控制单元(ICCE)的光网络电路信令交换和路由(PIONEER)管控架构,并探讨了支持该架构需要的一些新的关键技术。为了验证PIONEER架构的有效性,搭建了2组基于该架构的SDH域和OTN域异构光网络联合管控实验平台,包括10真实光节点功能验证平台和1 000模拟光节点性能验证平台。平台实验结果表明:PIONEER架构能够满足多域异构光网络互连互通的功能要求,并且在自动连接控制的实时性、可扩展性、生存性和可靠性等方面都具有良好的表现。When multi domain heterogeneous optical networks inter-connect with each other, the inter-domain inter-communication on the management and control planes becomes difficult. Analyses and simulation results show that the path computation element （PCE） based control mechanism gives better optimization of the routing and reduced the inter-domain interactive information, but provides less connection control compared with other management and control mechanisms. A management and control architecture, the PCE and ICCE based optical network e-signaling exchange and routing （PIONEER） architecture, is given here to enhance the connection control capability of PCE. Key technologies supporting this architecture are also investigated. The effectiveness of the P10NEER architecture to manage and control SDH and OTN domains is shown on two experimental platforms, including a functionality verification platform with 10 real optical nodes and a performance evaluation platform with 1 000 emulated optical nodes. Tests show that the architecture provides good inter-communication between multi-domain heterogeneous optical networks, with good real time characteristics, scalability, survivability and reliability of automatic connection provisioning.

关 键 词：多域异构光网络 外部网间接口 路径计算单元 网络管理系统 控制平面 

分 类 号：TN915.11[电子电信—通信与信息系统]