基于链路生命期的光数据中心网络业务恢复方案
Link-lifetime-based service restoration in optical datacenter network
- 通信学报 2018年39卷第8期 页码：125-132
- 作者机构：
重庆邮电大学通信与信息工程学院，重庆 400065
- 作者简介：
[ "鲍宁海（1973-），男，浙江宁波人，博士，重庆邮电大学副教授，主要研究方向为网络生存性、网络虚拟、网络节能等。" ]
[ "袁园（1994-），男，江苏扬州人，重庆邮电大学硕士生，主要研究方向为光数据中心网络生存性。" ]
[ "刘自谦（1994-），男，山东菏泽人，重庆邮电大学硕士生，主要研究方向为光数据中心网络生存性。" ]
[ "匡明（1991-），男，河南新县人，重庆邮电大学硕士生，主要研究方向为虚拟网络生存性。" ]
- 基金信息：国家自然科学基金资助项目(61671092);重庆市基础科学与前沿技术研究基金资助项目(cstc2016jcyjA0083);重庆市高校创新团队基金资助项目(KJTD201312)
DOI：10.11959/j.issn.1000-436x.2018146
中图分类号： TN929.11-
网络首发：2018-08，
纸质出版：2018-08-25
- 稿件说明：
移动端阅览
鲍宁海, 袁园, 刘自谦, 等. 基于链路生命期的光数据中心网络业务恢复方案[J]. 通信学报, 2018,39(8):125-132.
Ninghai BAO, Yuan YUAN, Ziqian LIU, et al. Link-lifetime-based service restoration in optical datacenter network[J]. Journal on Communications, 2018, 39(8): 125-132.
鲍宁海, 袁园, 刘自谦, 等. 基于链路生命期的光数据中心网络业务恢复方案[J]. 通信学报, 2018,39(8):125-132. DOI： 10.11959/j.issn.1000-436x.2018146.
Ninghai BAO, Yuan YUAN, Ziqian LIU, et al. Link-lifetime-based service restoration in optical datacenter network[J]. Journal on Communications, 2018, 39(8): 125-132. DOI： 10.11959/j.issn.1000-436x.2018146.
摘要
针对大规模灾难事件对光数据中心网络造成的关联性和级联性故障，提出一种基于链路生命期的灾后业务恢复方案。该方案利用全局业务带宽退让和局部链路的有限生命期，缓解灾后网络的带宽资源危机，根据灾难损毁业务的带宽需求和持续时间需求，确定业务恢复优先级，采用任播与多播相结合的路由策略提高业务的连通性和带宽资源利用率。仿真结果表明，所提方案能够最大限度地降低业务中断率，并有效地延长灾难损毁业务的持续时间，减少数据流量损失。
Abstract
Aiming at the correlated and cascading failures caused by large-scale disasters
a post-disaster service restoration scheme was proposed.This scheme utilized global service bandwidth concession and the limited lifetime of local links to mitigate resource crunch in the post-disaster network.According to their bandwidth and holding time requirements
the impacted services for restoration was prioritized firstly
then jointly employed anycast and manycast routing strategies to improve the service connectivity and bandwidth resource utilization.Simulation results show that the proposed scheme can significantly reduce the service loss ratio
effectively prolong the holding time of the impacted services and decrease the data flow loss ratio in the post-disaster network.
关键词
Keywords
references
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