A Scalable Offload Architecture for Stream Control Transmission Protocol (SCTP)

• Main Authors: Wan-Chun Chen, 陳萬軍
• Other Authors: Chung-ho Chen
• Format: Others
• Language: zh-TW
• Published: 2008
• Online Access: http://ndltd.ncl.edu.tw/handle/68372119398231303029

碩士 === 國立成功大學 === 電腦與通信工程研究所 === 96 === This thesis presents the design of an SCTP network offload engine. To propose an adequate design model, we have studied the different features of SCTP and TCP, as well as surveyed several related network offload designs and the software protocol stacks. According to our studies, we propose a scalable architecture for SCTP offload. To accelerate the network processing, the SCTP protocol is implemented as a hardware design which handles the data flow and the connection management. To provide flexibility, the SCTP hardware is designed as a scalable sub-module, so that multiple units can be parallelly arranged on the bus and work simultaneously. The dispatching speed between the SCTP modules is enhanced by the hardware design, and the expansion of connection numbers is supported by embedded processors. The design proposed in this work is implemented under an ARM environment, on an electronic system level platform and in SystemC. In the current design, each module supports 16 SCTP connections and is able to process 156,000 packets/second when it is set at 125 MHz-clock rate.