Abstract: On basis of analyzing QoS function module and the structure of AMCC network processor, the network data plane software based on NP3450 is designed and implemented by using microcode and high-level programming language. Such mechanism as deep packet classification, the second look-up table, three scheduling and four groups of prospective entry-limit are introduced. The fine-grained QoS control based on stream is implemented. Experimental results show this design scheme is feasible.

Key words: network processor, data plane, packet classification

摘要： 在分析QoS技术功能模块及AMCC网络处理器架构基础上，利用微码与高级语言混合编程模式设计并实现基于NP3450的网络设备数据平面软件，引入深度包分类、二次查表、三级调度及四组准入门限等机制，实现基于流的细颗粒度QoS管控。实验结果表明，该设计方案是可行的。

关键词: 网络处理器, 数据平面, 包分类

CLC Number: 

• TP311.52