[Computer Networking] {CMU14-740} Lecture 4: ISPs, Backbones and Peering

Interactions between different level peers

When trying to understand the behavior of the internet, one cannot ignore the business relationships of the partners and how they interact. This lecture will examine many of the players in the global telecommunications market and build a simple model to describe their motivations and behaviors.

Lesson Objectives

By the end of this lesson, the student will be able to:

• analyze business practices of various enterprises using the multi-tier network model (Tier-1, 2, etc) and common peering practices.
• describe the relationships and associated motivations for enterprises on the internet.
• analyze the effect of recent trends in internet usage patterns on the various business enterprises on the internet.
• describe interconnection methods between enterprise networks.

Reading

• A Business Case for Peering [Norton2010]
• Guide to Admin Procedures (skim) [RFC 2901]

Slides

• L04_ISPsBackbonePeering.pdf
• L04_ISPsBackbonePeering.pdf (No background version)

Due

• Paper Review: Norton2010

Video

• Lecture Video

Other Resources

• [Lecture Image: Connecting to Facebook's Networks]

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train => trucks on the train => logo "UPS" on the trucks

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hierarchy

 

fundamental goal of internet: take different networks and connect them together

 

 

CMU(pay money)  --- transit --- ISP (receive money)

Google(no payment) --- peering --- MSN (no payment)

transit vs. peering

 

 

 

 IXP => Internet exchange point