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A hybrid anycast network architecture and intelligent server selection strategy for multimedia services
Author(s) -
Yuan Sha,
Lin Tao,
Zhang Guoqiang,
An Wei,
Li Yang,
Song Ci
Publication year - 2014
Publication title -
transactions on emerging telecommunications technologies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.366
H-Index - 47
ISSN - 2161-3915
DOI - 10.1002/ett.2730
Subject(s) - anycast , computer science , scalability , computer network , name server , architecture , routing (electronic design automation) , multicast , distributed computing , the internet , selection (genetic algorithm) , server farm , key (lock) , network architecture , server , service (business) , selection algorithm , client–server model , world wide web , database , operating system , artificial intelligence , art , economy , economics , visual arts
Multimedia services, which are experiencing an enormous popularity nowadays, have been regarded as one of the main applications of Future Internet. A key supporting technology behind these services is a scalable, intelligent and effective anycast service. Present anycast solutions are either based on route‐by‐name or lookup‐by‐name, which cannot fulfill the requirements of today's services. In this paper, we first propose an anycast network architecture that combines the merits of both the route‐by‐name and lookup‐by‐name schemes, which achieves good balance between routing scalability and forwarding efficiency, allows flexible server selection, quickly adapts to network changes and maintains flow affinity. Based on this architecture, practical anycast‐based server selection algorithms are presented with joint considerations of both network condition and server load condition. The proposed algorithms are evaluated through the discrete event network simulations using OMNET++ and the INET framework. Experiment results show that efficient server selection can be achieved. Copyright © 2013 John Wiley & Sons, Ltd.