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A 90 nm CMOS network processor comprising dual CPUs, a packet engine (PE), and an embedded LAN switch is developed on a 7.51 ?? 7.75 mm2 die. The network processors enable a residential gateway to forward packets at 2 Gb/s with IP security and packet filtering. By offloading the packet handling to a packet engine, the power consumption of this function is limited to 24 mW.
PR-SCTP provides a timeliness transport service. When the lifetime of the data specified by the application expires, the sender PR-SCTP gives up retransmitting the data, and transmits a Forward TSN chunk to make the receiver advance the Cumulative ACK point. However, on the mobile communication, connectivity of the nodes is intermittent. PRSCTP does not work properly in this case, thereby the timeliness...
Migration between different wireless access networks often involves disconnected period, which is caused by passing an area of bad wireless coverage and potential overhead to switch the network on the network interface to connect to. The disconnected period can cause extra transmission delay due to the timer-driven retransmission behavior in the transport protocols, such as TCP and SCTP. We propose...
In this paper, we present a new computer architecture called All-IP computer architecture, which realize a flexible computer re-configuration environment via IP networks. Our new IP-based protocols connect devices to the host computer that were previously limited to a physical attachment. To construct All-IP computer environment, we designed a protocol to manage and discover device resources on IP...
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.
In the near future, mobile communication will become majority on the Internet according to quick progress of wireless technology and mobility protocols. Mobile IPv6 has been standardized at IETF and almost ready to deploy on the Internet. However, handover technology of Mobile IPv6 is still under development. Since Mobile IPv6 does not specify optimized handover mechanism, it takes certain period...
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