直流。P4:对数据中心交换机转发平面进行编程

Proceedings of the 1st ACM SIGCOMM Symposium on Software Defined Networking Research Pub Date : 2015-06-17 DOI:10.1145/2774993.2775007

Anirudh Sivaraman, Changhoon Kim, Ramkumar Krishnamoorthy, A. Dixit, M. Budiu

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引用次数: 92

摘要

P4编程语言[29,16]最近被提出作为一种高级语言来编程可编程包处理器的转发平面，涵盖从软件交换机到fpga、npu和可重构硬件交换机的频谱。本文介绍了一个使用P4来表示数据中心交换机的转发平面行为的案例研究，其功能可与当今许多数据中心中发现的单芯片共享内存交换机相媲美。这个案例研究使我们能够理解特定的P4构造在建模特定数据中心交换机特性时是如何有用的。我们还概述了需要添加到P4中的其他语言结构，以支持数据中心交换机的某些特性。我们讨论了在这个过程中吸取的一些经验教训，并将其提炼成一个关于P4未来如何发展的建议。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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DC.p4: programming the forwarding plane of a data-center switch

The P4 programming language [29, 16] has been recently proposed as a high-level language to program the forwarding plane of programmable packet processors, spanning the spectrum from software switches through FPGAs, NPUs and reconfigurable hardware switches. This paper presents a case study of using P4 to express the forwarding plane behavior of a datacenter switch, comparable in functionality to single-chip shared-memory switches found in many datacenters today. This case study allows us to understand how specific P4 constructs were useful in modeling specific datacenter switch features. We also outline additional language constructs that needed to be added to P4 to support certain features of a datacenter switch. We discuss several lessons that we learned in the process and distill these into a proposal for how P4 could evolve in the future.

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Proceedings of the 1st ACM SIGCOMM Symposium on Software Defined Networking Research

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