High-resolution, digital image transmission challenges pale in comparison to the requirements of high performance interactive graphics between internetworked data sources and sinks. The situation is exacerbated by internetworking devices. Traditional network communication processing solutions are unable to address both high-throughput and low-latency product expectations. Protocol Engines incorporate new technologies targeted to address the emerging high-bandwidth and low latency expectations. These technologies are usable in data source and sink, as well as internetworking devices.