迈向可扩展的SDN交换机:实现更快的流表项安装

Proceedings of the 2015 ACM Conference on Special Interest Group on Data Communication Pub Date : 2015-08-17 DOI:10.1145/2785956.2790008

R. Bifulco, A. Matsiuk

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引用次数: 31

摘要

●软件表的更新速度比硬件表快得多●混合架构可以利用以下逻辑:•转发表更新总是首先发生在软件中•表项最终移动到硬件转发表，卸载软件转发器•重叠的表项可能会破坏转发决策的优先级—从硬件表中删除表项通常比添加表项快得多•在硬件表中安装可能需要对先前安装的流表项进行重组。•混合架构可以将表项安装转换为在软件表中安装和从硬件表中删除的混合

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Towards Scalable SDN Switches: Enabling Faster Flow Table Entries Installation

 Software tables are much faster to be updated than hardware ones  A hybrid architecture can exploit the following logic: • Forwarding tables updates always happen in software first • Entries are eventually moved to the hardware forwarding tables, offloading the Software forwarder  Overlapping entries may break the forwarding decisions in respect to their priorities  Deleting entries from hardware tables is usually much faster than adding them: • Installation in hardware tables may require a reorganization of the previously installed Flow Table Entries  A hybrid architecture can translate an entry installation into a mix of installation in software tables and deletion from hardware tables

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Proceedings of the 2015 ACM Conference on Special Interest Group on Data Communication

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