3/21/001 What did we learn at this workshop? Dan Nessett, moderator Usenix Special Workshop on Intelligence At the Network Edge San Francisco, CA March.

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Presentation transcript:

3/21/001 What did we learn at this workshop? Dan Nessett, moderator Usenix Special Workshop on Intelligence At the Network Edge San Francisco, CA March 20, 2000

3/21/002 What did we learn at this workshop? What is the “edge” ? - A host? - An organizational or spatial boundary? - A protocol layer boundary (e.g., above layer 3)? Edge intelligence can be used for : - sub-multiplexing address/name spaces. - scalable QoS provisioning. - distribution of content processing and caching.

3/21/003 What did we learn at this workshop? Why put intelligence at the edge? - improves scalability. - raises difficult issue - do you make functionality transparent (translucent?) or visible? - when edge = end system, can shift responsibility for some services [but will this really work?]. - allows offload of functionality from less capable devices to “gateway” or “surrogate” with more capability. - but, why use IP for this? Can’t less capable devices be considered “peripherals”?

3/21/004 What did we learn at this workshop? Intelligence at the edge complicates (simplifies) management - may make fault diagnoses/correction harder. - may make management harder (heterogeneity). - however, can improve fault tolerance. - also, may make management more scalable (e.g., firewalls). How does end-to-end security affect edge intelligence? - E2E encryption can hide data used for decision making. - E2E encryption can prevent rewriting data in packets. - Will affect web proxies and network device packet classification significantly.

3/21/005 What did we learn at this workshop? Edge intelligence can break coherent architecture. - May introduce more problems than it solves. - Need an intelligent edge device “architecture” to help minimize problems introduced into overall system. Need work on middle box discovery; auto-configuration.