spaper14_slides - A Survey on Content-Oriented Networking...

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A Survey on Content-Oriented Networking for Efficient Content Delivery Jaeyoung Choi, Jinyoung Han, Eunsang Cho, Ted “Taekyoung” Kwon,and Yanghee Choi Presented By, Shri Rama Mallela, Chandra Shekar Cherukuri
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Current Architecture Multimedia content becoming increasingly dominant and voluminous – IPTV, CPs, p2p, etc. Multicasting/Broadcasting over IP (IPTV) has issues like multicast address assignment and complex group management.
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Content Oriented Network (CON) Redesigned network to support content oriented applications and services. Decoupling contents from hosts – at the network level not application level. Natively supports multicasting/broadcasting
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CON Architecture A CON architecture can be characterized by four main building blocks: A. How to name the contents B. How to locate the contents (routing) C. How to deliver/disseminate the contents D. How to cache the contents “in” the network
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CON is Different From IP Has three characteristic differences from IP networking Ø Routing by content names, not by (host) locators i.e. identification is by contents not hosts. Ø Main communication model is a publish/subscribe paradigm Ø Authenticity of contents can be verified by public key cryptography unlike in IP where the host address is irrelevant to the content name.
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A. Content Naming There are three types of Content Naming Schemes: § Hierarchical Naming § Flat Naming § Attribute-Based Naming
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Hierarchical Naming (CCN & Triad) Content file is often named by an identifier like a web URL (/ delimiter) (e.g. www.acme.com/main/logo.jpg) Compatible with the current URL-based applications (lower deployment hurdle) Can help mitigate the routing scalability
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Hierarchical Naming (Issues) Cons As
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spaper14_slides - A Survey on Content-Oriented Networking...

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