Computer Science – Networking and Internet Architecture
Scientific paper
2009-02-24
Computer Science
Networking and Internet Architecture
Scientific paper
The stack in various forms has been widely used as an architectural template for networking systems. Recently the stack has been subject to criticism for a lack of flexibility. However, when it comes right down to it nobody has offered a truly compelling alternative. Various cross-layer optimizations have been proposed, but these optimizations are frequently hacks to achieve a particular goal and offer no direct insight into why the existing network stack is inadequate. We propose that a fundamental problem with the existing network stack is that it attempts to layer functionality that is not well-suited to layering. In this work we use a "bottom up" model of information computation, storage, and transfer and the "top down" goals of networking systems to formulate a modular decomposition of networking systems. Based on this modular decomposition we propose a semantic layered structure for networking systems that eliminates many awkward cross-layer interactions that arise in the canonical layered stack.
Neufeld Michael
Partridge Craig
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