A novel network node architecture for high performance and function flexibility

Authors:
Takahiro Murooka;Atsushi Takahara;Toshiaki Miyazaki
Affiliations:
NTT Network Innovation Laboratories, 1-1 Hikarinooka Yokosuka-shi, Kanagawa, 239-0847, Japan;NTT Network Innovation Laboratories, 1-1 Hikarinooka Yokosuka-shi, Kanagawa, 239-0847, Japan;NTT Network Innovation Laboratories, 1-1 Hikarinooka Yokosuka-shi, Kanagawa, 239-0847, Japan
Venue:
Proceedings of the 2001 Asia and South Pacific Design Automation Conference
Year:
2001

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Abstract

We developed a flexible network node that is tuned for high-speed and multilayer packet manipulation. The key idea is a dynamic function assignment mechanism; each packet processing task is assigned to several processing modules in an on-the-fly manner and incoming packets are processed in them. With this mechanism, we can freely arrange the modules and add extra ones if more processing power is needed. In addition, the processing modules are realized using field programmable gate arrays (FPGAs) and micro processing units (MPUs). Thus, the functionality of each module can be dynamically changed at anytime. In this paper, the system concept and its implementation are described with an example application.