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UID:57@lincs.fr
DTSTART;TZID=Europe/Paris:20160413T140000
DTEND;TZID=Europe/Paris:20160413T150000
DTSTAMP:20170313T170918Z
URL:https://www.lincs.fr/events/a-study-of-the-impact-of-dns-resolvers-on-
 cdn-performance-using-a-causal-approach/
SUMMARY:A Study of the Impact of DNS Resolvers on CDN Performance Using a
 Causal Approach
DESCRIPTION:Resources such as Web pages or videos that are published in the
 Internet are referred to by their Uniform Resource Locator (URL). If a user
 accesses a resource via its URL\, the host name part of the URL needs to be
 translated into a routable IP address. This translation is performed by the
 Domain Name System service (DNS). DNS also plays an important role when
 Content Distribution Networks (CDNs) are used to host replicas of popular
 objects on multiple servers that are located in geographically different
 areasA CDN makes use of the DNS service to infer client location and direct
 the client request to optimal server. While most Internet Service Providers
 (ISPs) offer a DNS service to their customers\, clients may instead use a
 public DNS service. The choice of the DNS service can impact the
 performance of clients when retrieving a resource from a given CDN. In this
 paper we study the impact on download performance for clients using either
 the DNS service of their ISP or the public DNS service provided by Google
 DNS. We adopt a causal approach that exposes the structural dependencies of
 the different parameters impacted by the DNS service used and we show how
 to model these dependencies with a Bayesian network. The Bayesian network
 allows us to explain and quantify the performance benefits seen by clients
 when using the DNS service of their ISP. We also discuss how the further
 improve client performance. Joint work with Hadrien Hours\, Patrick
 Loiseau\, Alessandro Finamore and Marco Mellia
CATEGORIES:Seminars,Youtube
LOCATION:LINCS Meeting Room 40\, 23\, avenue d'Italie\, Paris\, 75013\,
 France
GEO:48.8283983;2.3568972000000485
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TZID:Europe/Paris
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DTSTART:20160327T030000
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