计算机应用与软件
計算機應用與軟件
계산궤응용여연건
COMPUTER APPLICATIONS AND SOFTWARE
2014年
12期
169-174,228
,共7页
单链路故障%多链路故障%贪婪路由协议%本地恢复策略%网络生成树
單鏈路故障%多鏈路故障%貪婪路由協議%本地恢複策略%網絡生成樹
단련로고장%다련로고장%탐람로유협의%본지회복책략%망락생성수
Single-link breakdowns%Multi-link breakdowns%Greedy routing protocol%Local recovery strategy%Networks spanning tree
针对现有的贪婪方法不能有效处理拓扑结构中链路故障的问题,提出单链路故障和多链路故障本地化恢复策略。首先,通过利用克莱因伯格的贪婪嵌入给出单链路故障恢复策略;然后,将其扩展到多链路故障的情况;最后,在基于Python/C++的仿真环境下对提出的技术进行评估。实验结果表明,该技术仅需要非常有限的资源,且造成的路由质量损耗也有限,可以实现快速切换,可依网络生成树中链路数目扩展。该技术的可扩展性、简单性和低开销使其适合于大型网络。
針對現有的貪婪方法不能有效處理拓撲結構中鏈路故障的問題,提齣單鏈路故障和多鏈路故障本地化恢複策略。首先,通過利用剋萊因伯格的貪婪嵌入給齣單鏈路故障恢複策略;然後,將其擴展到多鏈路故障的情況;最後,在基于Python/C++的倣真環境下對提齣的技術進行評估。實驗結果錶明,該技術僅需要非常有限的資源,且造成的路由質量損耗也有限,可以實現快速切換,可依網絡生成樹中鏈路數目擴展。該技術的可擴展性、簡單性和低開銷使其適閤于大型網絡。
침대현유적탐람방법불능유효처리탁복결구중련로고장적문제,제출단련로고장화다련로고장본지화회복책략。수선,통과이용극래인백격적탐람감입급출단련로고장회복책략;연후,장기확전도다련로고장적정황;최후,재기우Python/C++적방진배경하대제출적기술진행평고。실험결과표명,해기술부수요비상유한적자원,차조성적로유질량손모야유한,가이실현쾌속절환,가의망락생성수중련로수목확전。해기술적가확전성、간단성화저개소사기괄합우대형망락。
Considering that current greedy technique can’ t handle the breakdowns in topological structure effectively, this paper proposes the localised recovery strategy for single link breakdowns and multi-link breakdowns.First, we give the recovery strategy for single link breakdowns by using greedy embedding of Robert Kleinberg.Then, we expand it to multi-link breakdowns situation.Finally, we evaluate the proposed technologies in Python/C++-based simulation environment.Experimental results show that the technologies need just very limit resources, and the routing quality loss caused is limit as well, it can switch quickly and expand according to the link number of networks spanning tree.The technologies proposed are fit for big networks because of their expandability, simplicity and low cost.