Impact of public name resolving services on Akamai  

作　　者：秦臻 Xiao Chunjing Li Lemin 

机构地区：[1]School of Communication & Information Engineering,University of Electronic Science and Technology of China [2]School of Computer Science & Engineering,University of Electronic Science and Technology of China

出　　处：《High Technology Letters》2013年第4期359-363,共5页高技术通讯（英文版）

基　　金：Supported by the National Basic Research Program of China(No.2013CB329103);the National Natural Science Foundation of China(No.61133016,61300191);the National High Technology Joint Research Program of China(No.2011AA010706);the Program of SichuanProvince Applied and Basic Research(No.2013JY0116)

摘　　要：To enhance user perceived performance,Akamai' s content distribution network(CDN) utilizes the domain name system(DNS) effectively to redirect users to close-by content replicas over short time scale.The use of DNS redirection has brought a significant advantage to Akamai' s CDN.However,the reliance on DNS also poses a fundamental threat to Akamai' s content distribution model.In particular,systematic evaluation and quantification illustrates the impact of recent emerging public DNS resolving services on Akamai' s CDN,including the degradation of corresponding user perceived performance and the benefit damnification of collaborating internet services providers(ISPs) that host Akamai's edge servers.The measurement demonstrates that a considerable penetration of public DNS resolving services(e.g.,OpenDNS and GoogleDNS) effectively corrupts the Akamai' s serving model,namely the large-scale server distribution and quick DNS redirection.To enhance user perceived performance,Akamai＇ s content distribution network （CDN） utilizes the domain name system （DNS） effectively to redirect users to close-by content replicas over short time scale.The use of DNS redirection has brought a significant advantage to Akamai＇ s CDN.However,the reliance on DNS also poses a fundamental threat to Akamai＇ s content distribution model.In particular,systematic evaluation and quantification illustrates the impact of recent emerging public DNS resolving services on Akamai＇ s CDN,including the degradation of corresponding user perceived performance and the benefit damnification of collaborating internet services providers （ISPs） that host Akamai＇ s edge servers.The measurement demonstrates that a considerable penetration of public DNS resolving services （e.g.,OpenDNS and GoogleDNS） effectively corrupts the Akamai＇ s serving model,namely the large-scale server distribution and quick DNS redirection.

关 键 词：content distribution network （CDN） domain name system （DNS） public DNS resolving services DNS redirection 

分 类 号：TP393.01[自动化与计算机技术—计算机应用技术]