Named Data Networking (NDN)
1 Introduction
Information-centric networks (ICNs) introduce a radical change in Internet communications. ICNs
emphasize information access regardless of location through a new data-based approach, allowing
networks to actively deliver content. The more interesting project that draw attention to the
notion of information centric networking are the Content Centric Networking (CCN) project and
Named Data Networking (NDN).
1.1 Content naming
In current IP based networking, content retrieval over the Internet is intrinsically host-centric,
which implies knowing the host IP address to send content requests to. A priori knowledge of an
end system IP address is required to establish one or more communication paths between the user
and content host and to allow content to be directly requested. This host-centric approach binds
content to identi cation and location. The ICN approach di ers signi cantly from traditional
host-centric network architectures. By treating content rather than its storage node as a rst-class
citizen in the network architecture, ICNs allow content request and retrieval to occur in a name-
based manner. This can be accomplished by using speci c content naming schemes.
المادة المعروضة اعلاه هي مدخل الى المحاضرة المرفوعة بواسطة استاذ(ة) المادة . وقد تبدو لك غير متكاملة . حيث يضع استاذ المادة في بعض الاحيان فقط الجزء الاول من المحاضرة من اجل الاطلاع على ما ستقوم بتحميله لاحقا . في نظام التعليم الالكتروني نوفر هذه الخدمة لكي نبقيك على اطلاع حول محتوى الملف الذي ستقوم بتحميله .
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