TY - GEN
T1 - Behind the curtain - Cellular DNS and content replica selection
AU - Rula, John P.
AU - Bustamante, Fabian E
N1 - Funding Information:
Part of this work is supported by the European Commission’s Information Society Technologies Programme, project SIGNAL, IST-2000-29225. Partners in this project are Napier University, National Research Council Genoa, Austrian Research Institute OFAI, and the University of Bonn.
Publisher Copyright:
Copyright © 2014 by the Association for Computing Machinery, Inc. (ACM).
PY - 2014/11/5
Y1 - 2014/11/5
N2 - DNS plays a critical role in the performance of smartdevices within cellular networks. Besides name resolution, DNS is commonly relied upon for directing users to nearby content caches for better performance. In light of this, it is surprising how little is known about the structure of cellular DNS and its effectiveness as a client localization method. In this paper we take a close look at cellular network DNS and uncover several features of cellular DNS, such as cellular network opaqueness and client to resolver inconsistency, that make it unsuitable for client localization in modern cellular networks. We study these issues in two leading mobile network markets - US and South Korea - using a collection of over 340 volunteer devices to probe the DNS infrastructure of each client's cellular provider. We show the extent of the problem with regards to replica selection and compare its localization performance against public DNS alternatives. As a testament to cellular DNS's poor localization, we find surprisingly that public DNS can render equal or better replica performance over 75% of the time.
AB - DNS plays a critical role in the performance of smartdevices within cellular networks. Besides name resolution, DNS is commonly relied upon for directing users to nearby content caches for better performance. In light of this, it is surprising how little is known about the structure of cellular DNS and its effectiveness as a client localization method. In this paper we take a close look at cellular network DNS and uncover several features of cellular DNS, such as cellular network opaqueness and client to resolver inconsistency, that make it unsuitable for client localization in modern cellular networks. We study these issues in two leading mobile network markets - US and South Korea - using a collection of over 340 volunteer devices to probe the DNS infrastructure of each client's cellular provider. We show the extent of the problem with regards to replica selection and compare its localization performance against public DNS alternatives. As a testament to cellular DNS's poor localization, we find surprisingly that public DNS can render equal or better replica performance over 75% of the time.
KW - Cellular DNS
KW - Content delivery networks
KW - Domain name system
UR - http://www.scopus.com/inward/record.url?scp=84910108321&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84910108321&partnerID=8YFLogxK
U2 - 10.1145/2663716.2663734
DO - 10.1145/2663716.2663734
M3 - Conference contribution
AN - SCOPUS:84910108321
T3 - Proceedings of the ACM SIGCOMM Internet Measurement Conference, IMC
SP - 59
EP - 71
BT - IMC 2014 - Proceedings of the 2014 ACM
PB - Association for Computing Machinery
T2 - 2014 ACM Internet Measurement Conference, IMC 2014
Y2 - 5 November 2014 through 7 November 2014
ER -