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Slides2-4up - Technical and Social Foundations Communication on the Internet What is the Internet AS level communication between AS's Send email

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CPS 82, Fall 2011 2.1 Technical and Social Foundations What is the Internet? According to … Wikipedia According to Jon Stewart and Ted Stevens A collection of autonomous systems (AS)s Network of networks How do these networks communicate? Country level, company level, … Until 2007, 16-bit AS numbers, now 32 bits CPS 82, Fall 2011 2.2 Communication on the Internet AS level, communication between AS's Send email from Duke to Malaysia visualroute.visualware.com What names and numbers are involved? Duke has ASN 13371 what is an ASN for YouTube? AS communicates with neighbors using BGP Computers on the internet communicate with IP Mail works because of SMTP CPS 82, Fall 2011 2.3 Can the Internet break? Internet Glitch Can Strand You Similar incidents in the past What about this phrasing? The upstream carrier accepted the routing message, and passed it along to other carriers across the world, which started sending all requests for
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Slides2-4up - Technical and Social Foundations Communication on the Internet What is the Internet AS level communication between AS's Send email

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