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Packet parsing is the basic operation performed at all points of the network infrastructure. Modern networks impose challenging requirements on the performance and configurability of packet parsing modules, however the high-speed parsers often use very large chip area. We propose novel architecture of pipelined packet parser, which in addition to high throughput (over 100 Gb/s) offers also low latency. Moreover, the latency to throughput ratio can be finely tuned to fit the particular application. The parser is handoptimized thanks to the direct implementation in VHDL, yet the structure is very uniform and easily extensible for new protocols.

Packet parsing is among basic operations that are performed at all points of a network infrastructure. Modern networks impose challenging requirements on the performance and configurability of packet parsing modules. However, high-speed parsers often use a significant amount of hardware resources. We propose a novel architecture of a pipelined packet parser for FPGA, which offers low latency in addition to high throughput (over 100 Gb/s). Moreover, the latency, throughput and chip area can be finely tuned to fit the needs of a particular application. The parser is hand-optimized thanks to a direct implementation in VHDL, yet the structure is uniform and easily extensible for new protocols.

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