Content Delivery Networks
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The document discusses content delivery networks (CDNs) and content oriented networks. A CDN uses a group of servers to distribute content over the Internet to provide high availability and low latency. Content oriented networks focus on caching content in different locations rather than geographical locations, to improve availability and performance. Examples provided are Amazon CloudFront and S3. The document also summarizes a research paper on WAVE, a popularity-based collaborative caching technique for content oriented networks, and compares its performance to other caching approaches and traditional CDNs.
Content Delivery Networks
- 1. Content Delivery Networks “Wave: Popularity-based and Collaborative In- network caching for Content Oriented Networks.”
- 2. Understanding Keywords Content Delivery Network (CDN) ◦ Group of servers used for distributing content over the Internet. ◦ Providing content with high availability and less latency. Content Oriented Network ◦ Focus is on content, not the geographical location. ◦ Content can be cached to provide high availability and less latency.
- 3. Examples Amazon CloudFront ◦ A content delivery network. ◦ Data is replicated in various data centers. ◦ When a data chunk is requested, it is served by the closest replica. Amazon S3(Simple Storage Service) ◦ Online Storage. ◦ Most common application you use on a daily basis, that uses Amazon S3 at its back-end :- ◦ Dropbox.
- 4. Wave Operation Source: Kideok Cho, Munyoung Lee, Kunwoo Park, Ted Taekyoung Kwon, Yanghee Choi,“WAVE: Popularity-based and collaborative in-network caching for content-oriented networks”,Computer Communications Workshops (INFOCOM WKSHPS) IEEE Conference, pp 316-321, March 2012.
- 5. Performance comparison of WAVE against ProbCache, AllCache, CDN, and client-server Source: Kideok Cho, Munyoung Lee, Kunwoo Park, Ted Taekyoung Kwon, Yanghee Choi,“WAVE: Popularity-based and collaborative in-network caching for content-oriented networks”,Computer Communications Workshops (INFOCOM WKSHPS) IEEE Conference, pp 316-321, March 2012.
- 8. Network Application Protocol Client to Server ◦ Text Encoding ◦ g,filename,chunkNumbern Server to Client ◦ Data Objects ◦ Chunk Objects are returned from the server
- 12. Questions before we go to Live Demonstration
- 13. Results