The click modular router

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The click modular router (2001)

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by Eddie Kohler

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1163 - 28 self

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@MISC{Kohler01theclick,
    author = {Eddie Kohler},
    title = {The click modular router},
    year = {2001}
}

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Abstract

Click is a new software architecture for building flexible and configurable routers. A Click router is assembled from packet processing modules called elements. Individual elements implement simple router functions like packet classification, queueing, scheduling, and interfacing with network devices. A router configuration is a directed graph with elements at the vertices; packets flow along the edges of the graph. Configurations are written in a declarative language that supports user-defined abstractions. This language is both readable by humans and easily manipulated by tools. We present language tools that optimize router configurations and ensure they satisfy simple invariants. Due to Click’s architecture and language, Click router configurations are modular and easy to extend. A standards-compliant Click IP router has sixteen elements on its forwarding path. We present extensions to this router that support dropping policies, fairness among flows, quality-of-service, and

Keyphrases

click modular router router configuration network device packet processing module click router configuration new software architecture present language tool forwarding path directed graph standards-compliant click ip router declarative language present extension sixteen element packet classification simple invariant configurable router user-defined abstraction click router click architecture

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