计算机科学 ›› 2019, Vol. 46 ›› Issue (1): 143-147.doi: 10.11896/j.issn.1002-137X.2019.01.022
耿海军
GENG Hai-jun
摘要: 目前,互联网部署的域内链路状态路由协议,如开放最短路径优先(Open Shortest Path First,OSPF)和中间系统到中间系统(Intermediate System-to-Intermediate System,IS-IS),采用被动恢复方案应对网络故障。随着网络的发展,大量的实时应用部署在互联网上,OSPF的收敛时间无法满足这些实时应用对收敛时间的需求。因此,学术界和工业界提出采用路由保护方案来应对网路中出现的故障。然而,已有的路由保护方案存在两个方面的问题:1)默认路径和备份路径的交叉度较高,如LFA;2)为了计算两条交叉度低的路径,对默认路径加以限制,即默认路径不采用最短路径,如Color Tree。为了解决上述两个问题,首先将上述问题归结为整数规划模型,接着利用启发式方法计算近似最优解,最后在实际网络和模拟网络中对所提算法进行了大量实验。实验结果表明,所提算法可以降低默认路径和备份路径的交叉度,极大地提高网络的可用性。
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[1]CLARK D.The design philosophy of the DARPA internet protocols[J].Acm Sigcomm Computer Communication Review,1988,18(4):106-114.<br /> [2]BLACK U.Voice over IP[M].Prentice-Hall,Inc.,1999.<br /> [3]DREW P,GALLON C.Next-generation voip network architecture:MSF Technical Report:MSF-TR-ARCH-001-FINALIRI[R].Multiservice Switching Forum,2003.<br /> [4]GOODE B.Voice over internet protocol (voip)[J].Proceedings of the IEEE,2002,90(9):1495-1517.<br /> [5]KRIST P.Scalable and Efficient Multipath Routing:Complexity and Algorithms[C]//2015 IEEE 23rd International Conference on Network Protocols (ICNP).IEEE,2015:376-385.<br /> [6]ZHENG J,XU H,ZHU X,et al.We’ve Got You Covered:Failure Recovery with Backup Tunnels in Traffic Engineering[C]//2016 IEEE 24rd International Conference on Network Protocols (ICNP).IEEE,2016.<br /> [7]HARTERT R,VISSICCHIO S,SCHAUS P,et al.A Declarative and Expressive Approach to Control Forwarding Paths in Car-rier-Grade Networks [J].Acm Sigcomm Computer Communication Review,2015,45(5):15-28.<br /> [8]MARKOPOULOU A,IANNACCONE G,BHATTACHARYYA S,et al.Characterization of failures in an operational ip backbone network[J].IEEE/ACM Transactions on Networking,2008,16(4):749-762.<br /> [9]HOU M,WANG D,XU M,et al.Selective protection:a cost-efficient backup scheme for link state routing[C]//29th IEEE International Conference onDistributed Computing Systems.IEEE,2009:68-75.<br /> [10]GENG H J,SHI X G,YIN X,et al.Algebra and algorithms for multipath QoS routing in link state networks[J].Journal of Communications and Networks,2017,19(2):189-200.<br /> [11]YALLOUZ J,ROTTENSTREICH O,BABARCZI P,et al.Optimal Link-Disjoint Node-“Somewhat Disjoint” Paths[C]//2016 IEEE 24rd International Conference on Network Protocols (ICNP).IEEE,2016:1-10.<br /> [12]KWONG K W,GAO L,ZHANG Z L.On the feasibility and efficacy of protection routing in IP networks [J].IEEE/ACM Transactions on Networking,2011,19(5):1543-1556.<br /> [13]SRIDHARAN A,GUERIN R,DIOTC.Achieving near-optimal traffic engineering solutions for current ospf/is-is networks [J].IEEE/ACM Transactions on Networking,2005,13(2):234-247.<br /> [14]YANG X,WETHERALL D.Source selectable path diversity via routing deflections[J].ACM SIGCOMM Computer Communication Review,2006,36(4):159-170.<br /> [15]ATLAS A,ZININ A.Basic specification for ip fast reroute: Loop-free alternates:RFC 5286 .New York,NY,USA:A.Atlas,Ed.,2008.<br /> FRANCOIS P,BONAVENTURE O.An evaluation of IP-based fast reroute techniques//ACM Conference on Emerging Network Experiment and Technology.ACM,2005:244-245.<br /> HARTMANN M,HOCK D,MENTH M.Routing optimization for IP networks with loop-free alternates.Computer Networks,2016,95:35-50.<br /> LI A,FRANCOIS P,YANG X.On improving the efficiency and manageability of NotVia//ACM Conference on Emerging Network Experiment and Technology (CONEXT).ACM,2007:1-12.<br /> [19]JAYAVELU G,RAMASUBRAMANIAN S,YOUNIS O.Maintaining colored trees for disjoint multipath routing under node failures[J].IEEE/ACM Transactions on Networking,2009,17(1):346-359.<br /> [20]KINI S,RAMASUBRAMANIAN S,KVALBEIN A,et al.Fast recovery from dual link failures in IP networks[C]//Proc.INFOCOM.IEEE,2009.<br /> [21]MEDARD M,FINN S,BARRY R,et al.Redundant trees for preplanned recovery in arbitrary vertex-redundant or edge-redundant graphs[J].IEEE/ACM Transactions on Networking,1999,7(5):641-652.<br /> [22]SUURBALLE J W.A quick method for finding shortest pairs of disjoint paths[J].Networks,2006,14(2):325-336.<br /> [23]NETWORK A B.Advanced networking for research and education[OL].http://abilene.internet2.edu.<br /> [24]SPRING N,MAHAJAN R,WETHERALL D,et al.Measuring isp topologies with rocketfuel [J].IEEE/ACM Transactions on Networking,2004,12(1):2-16.<br /> [25]MEDINA A,LAKHINA A,MATTA I,et al.Brite:An approach to universal topology generation[C]//IEEE InternationalWorkshop on Modeling,Analysis,and Simulation of Computer and Telecommunication Systems.IEEE,2001:346-353.<br /> [26]GJOKA M,RAM V,YANG X.Evaluation of ip fast reroute proposals[C]//International Conference on Communication Systems Software and Middleware.IEEE,2007:1-8. |
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