A multicast overlay effectively pushes streaming content from a single source to multiple destinations, with no caching of the stream at the intermediate nodes. A CDN effectively pulls content (including videos) down a caching hierarchy, caching it at the intermediate nodes. Show by example how these two can be viewed as duals of each other. Explain why a CDN can be viewed as equivalent to asynchronous multicast. (Hint: Think TiVo.)

A multicast overlay effectively pushes streaming content from a single source to multiple destinations, with no caching of the stream at the intermediate nodes. A CDN effectively pulls content (including videos) down a caching hierarchy, caching it at the intermediate nodes. Show by example how these two can be viewed as duals of each other. Explain why a CDN can be viewed as equivalent to asynchronous multicast. (Hint: Think TiVo.)

Systems Architecture

7th Edition

ISBN:9781305080195

Author:Stephen D. Burd

Publisher:Stephen D. Burd

Chapter9: Computer Networks

Section: Chapter Questions

Problem 3RQ

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