Design and Implementation of a TCP/IP Offloading Engine

• Main Authors: Chin-Her Chang, 張景和
• Other Authors: Hsung-Pin Chang
• Format: Others
• Language: zh-TW
• Published: 2007
• Online Access: http://ndltd.ncl.edu.tw/handle/21288738348718262740

碩士 === 國立中興大學 === 資訊科學系所 === 95 === With the progress of networking technology, the capability of CPU cannot satisfy to afford the high-speed network bandwidth. In this thesis, we design and implement a TCP/IP offloading engine by porting the Linux 2.6’s network protocols on an embedded operating system MicroC/OS-II. TCP/IP offloading engine is a specialized network device implementing a significant portion of the TCP/IP protocol. Consequently, it offloads the TCP/IP protocol processing overhead from the software running on a general purpose CPU to the network device. Thus, it not only eliminates the bottleneck of packet transmission but also improves application performance. In this thesis, we introduce the concepts of TCP/IP offloading engines. Then, we discuss the performance and advantages of implementing TCP/IP offloading engines network adapters versus standard TCP/IP protocol suite on the host CPU. Finally, we describe our implementation and show the experimental results.