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On the Responsiveness of DNSbased Network Control Jeffrey Pang , Aditya Akella , Anees Shaikh y , Balachander Krishnamurthy z , Srinivasan Seshan
 

Summary: On the Responsiveness of DNS­based Network Control
Jeffrey Pang  , Aditya Akella  , Anees Shaikh y , Balachander Krishnamurthy z , Srinivasan Seshan 
 Computer Science Department y Network Software and Services z AT&T Labs -- Research
Carnegie Mellon University IBM T.J. Watson Research Center Florham Park, NJ 07932­0971
Pittsburgh, PA 15213­3891 Hawthorne, NY 10532­2134 bala@research.att.com
fjeffpang,aditya,srini+g@cs.cmu.edu aashaikh@watson.ibm.com
ABSTRACT
For the last few years, large Web content providers interested in im­
proving their scalability and availability have increasingly turned
to three techniques: mirroring, content distribution, and ISP multi­
homing. The Domain Name System (DNS) has gained a prominent
role in the way each of these techniques directs client requests to
achieve the goals of scalability and availability. The DNS is thought
to offer the transparent and agile control necessary to react quickly
to ISP link failures or phenomenon such as flash crowds.
In this paper, we investigate this assumption with the objective
of quantifying the degree of responsiveness that can be expected
from DNS. We use a combination of Web and DNS access mea­
surements from several busy Web sites, as well as a large content
distribution network, to characterize the behavior of end­systems

  

Source: Akella, Aditya - Department of Computer Sciences, University of Wisconsin at Madison

 

Collections: Computer Technologies and Information Sciences