Defending Against Link Failure in Virtual Network Embedding Using a Hybrid Scheme  

作　　者：Jianjian Ai Hongchang Chen Zehua Guo Guozhen Cheng 

机构地区：[1]National Digital Switching System Engineering & Technological R&D Center [2]University of Minnesota Twin Cities

出　　处：《China Communications》2019年第1期129-138,共10页中国通信（英文版）

基　　金：supported by Foundation for Innovative Research Groups of the National Natural Science Foundation of China(61521003);National Key Research and Development Plan(2016YFB0800101);National Natural Science Foundation of China(61602509)

摘　　要：Nowadays network virtualization is utterly popular.As a result,how to protect the virtual networks from attacking on the link is increasingly important.Existing schemes are mainly backup-based,which suffer from data loss and are helpless to such attacks like data tampering.To offer high security level,in this paper,we first propose a multipath and decision-making(MD) scheme which applies multipath simultaneously delivery and decision-making for protecting the virtual network.Considering different security requirement for virtual link,we devise a hybrid scheme to protect the virtual links.For the critical links,MD scheme is adopted.For the other links,we adopt the Shared Backup Scheme.Our simulation results indicate the proposed scheme can significantly increase the security level of the critical link high in the loss of less acceptance ratio.Nowadays network virtualization is utterly popular.As a result,how to protect the virtual networks from attacking on the link is increasingly important.Existing schemes are mainly backup-based,which suffer from data loss and are helpless to such attacks like data tampering.To offer high security level,in this paper,we first propose a multipath and decision-making(MD) scheme which applies multipath simultaneously delivery and decision-making for protecting the virtual network.Considering different security requirement for virtual link,we devise a hybrid scheme to protect the virtual links.For the critical links,MD scheme is adopted.For the other links,we adopt the Shared Backup Scheme.Our simulation results indicate the proposed scheme can significantly increase the security level of the critical link high in the loss of less acceptance ratio.

关 键 词：network VIRTUALIZATION VIRTUAL LINK security MULTIPATH and DECISION-MAKING hybrid scheme 

分 类 号：TN[电子电信]