数据中心间光互联网络中的跨层动态保护策略

doi:10.3969/j.issn.1001-2400.2018.03.024

西安电子科技大学学报

数据中心间光互联网络中的跨层动态保护策略

XIONG Yu;LI Zhiqiang;YANG Yaya

(重庆邮电大学光通信与网络重点实验室，重庆 400065)

收稿日期:2017-07-09 出版日期:2018-06-20 发布日期:2018-07-18
作者简介:熊余(1982- )，男，副研究员，博士，E-mail：xiongyu@cqupt.edu.cn
基金资助:
国家自然科学基金资助项目(61401052)；国家留学基金委员会资助项目(201608500030)；重庆市教育委员会科学技术研究资助项目(KJ1400418, KJ1500445)；重庆邮电大学博士启动基金资助项目(A2015-09)

Dynamic cross-layer protection strategy in optical inter-datacenter networks

熊余;李志强;杨娅娅

(Key Lab. of Optical Communication and Networks, Chongqing Univ. of Posts and Telecommunications, Chongqing, 400065)

Received:2017-07-09 Online:2018-06-20 Published:2018-07-18

摘要/Abstract

摘要：

为了保证数据中心间光互联网络中业务所需的可靠性，同时提高网络资源利用率，提出一种带有可靠性感知的跨层保护策略．该策略在软件定义的IP over 弹性光网络架构中，通过IP层和光层控制器的协同工作，将业务的实时可靠性告知光层，使光层充分感知业务特性．在此基础上，光层控制器根据业务实时可靠性的变化，在确保业务可靠性得到满足的前提下，设计最小资源占用块释放方法来动态调整光层保护资源．仿真结果表明，该保护策略在充分保证业务可靠性的同时，可以取得较低的保护开销和阻塞率．

关键词: 数据中心间光互联网络, 弹性光网络, 可靠性感知, 动态保护

Abstract:

In order to guarantee the reliability of the services and improve the resource utilization ratio of optical networks, the reliability-aware cross-layer protection strategy is proposed in optical inter-datacenter networks. In the architecture of the software defined IP over the elastic optical network, the optical layer could be aware of the services' real-time reliability through the cooperation of the controllers on the IP layer and optical layer. And then the optical controller could dynamically adjust the protected resources exploiting the release method of the minimal resource occupation block for the service according to the service' real-time reliability. Simulation results show that the proposed strategy can achieve a lower protection overbuild and blocking ratio while guaranteeing the reliability requirement of services.

Key words: optical inter-datacenter networks, elastic optical network, reliability-aware, dynamic protection

熊余;李志强;杨娅娅. 数据中心间光互联网络中的跨层动态保护策略[J]. 西安电子科技大学学报, 2018, 45(3): 136-142.

XIONG Yu;LI Zhiqiang;YANG Yaya. Dynamic cross-layer protection strategy in optical inter-datacenter networks[J]. Journal of Xidian University, 2018, 45(3): 136-142.

参考文献

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数据中心间光互联网络中的跨层动态保护策略

Dynamic cross-layer protection strategy in optical inter-datacenter networks

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