Research of effective TCP/IP communication on Ethernet

• Project/Area Number: 21700068
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Computer system/Network
• Research Institution: The University of Tokyo
• Principal Investigator: TAMATSUKURI Junji 東京大学, 大学院・理学系研究科, 准教授 (90322049)
• Project Period (FY): 2009 – 2011
• Project Status: Completed (Fiscal Year 2011)
• Budget Amount: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000); Fiscal Year 2011: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2010: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000); Fiscal Year 2009: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
• Keywords: イーサネット / TCP/IP / 通信速度コントロール / 速度コントロール / TCP / IP

Research Abstract

According to spread the 10 Gigabit network, servers could communicate in high speed by TCP/IP protocol. TCP/IP protocol detects packet loss and assumes available maximum bandwidth in the communication path. An Ethernet interface, generally used in network connection, transmits data putting from TCP/IP protocol stack at its maximum media rate. When TCP/IP protocol used for exploiting the average communication rate, an Ethernet generates packet loss at the maximum media rate. To avoid these packet losses, we tried to adjust the transmission speed from TCP/IP stack to Ethernet interface. We examine its effect in Linux servers.