The evolution of layered protocol stacks leads to an hourglass-shaped architecture
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- Saamer Akhshabi
- Georgia Institute of Technology, Atlanta, GA, USA
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- Constantine Dovrolis
- Georgia Institute of Technology, Atlanta, GA, USA
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説明
<jats:p> The Internet protocol stack has a layered architecture that resembles an hourglass. The lower and higher layers tend to see frequent innovations, while the protocols at the waist of the hourglass appear to be "ossified". We propose <jats:italic>EvoArch</jats:italic> , an abstract model for studying protocol stacks and their evolution. <jats:italic>EvoArch</jats:italic> is based on a few principles about layered network architectures and their evolution in a competitive environment where protocols acquire value based on their higher layer applications and compete with other protocols at the same layer. <jats:italic>EvoArch</jats:italic> produces an hourglass structure that is similar to the Internet architecture from general initial conditions and in a robust manner. It also suggests a plausible explanation why some protocols, such as TCP or IP, managed to survive much longer than most other protocols at the same layers. Furthermore, it suggests ways to design more competitive new protocols and more evolvable future Internet architectures. </jats:p>
収録刊行物
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- ACM SIGCOMM Computer Communication Review
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ACM SIGCOMM Computer Communication Review 41 (4), 206-217, 2011-08-15
Association for Computing Machinery (ACM)