1 Gbit/s bidirectional full-wire rate communication LSI for residential gateways

Abstract

A communication LSI for residential gateways has been developed. The LSI has an inline-IPsec circuit, which achieves 1 Gbit/s performance for both encryption and decryption, a small-scale high-speed look-up circuit in which only comparators are made parallel, and a hierarchical and reconfigurable QoS circuit. A 2 Gbit/s full wire rate throughput was achieved at a power consumption of 2 W.