Bob Briscoe (Chief researcher at the BT Network Research Centre) is on a mission to tackle one of the biggest problems facing the Internet. He wants the world to know that TCP (Transmission Control ...

Last time, we discussed how TCP combines a flow control parameter (Advertised Window) and a congestion control parameter (Congestion Window) to determine how many bytes the sending device can transmit ...

Computer-designed algorithms for controlling network congestion yield transmission rates two to three times as high as those designed by humans. TCP, the transmission control protocol, is one of the ...

In December, we wrote about researcher Bob Briscoe's problems with TCP's fairness in handling different protocols. Specifically, unattended peer-to-peer bulk data transfer applications (e.g., ...

Active queue management (AQM) and congestion control form the backbone of modern network performance optimisation. By dynamically regulating queue lengths in routers, these techniques pre-empt ...

A top-down exploration of networking using the 5-layer model and the TCP/IP stack. HTTP, FTP, DNS, BSD Sockets, concurrent servers, checksums, reliable transport with stop-and-wait, go-back-n, ...

Journal of Applied Probability, Vol. 44, No. 3 (Sep., 2007), pp. 618-635 (18 pages) The transmission control protocol (TCP) is a transport protocol used in the Internet. In Ott (2005), a more general ...

Data centre networks (DCNs) form the critical backbone for modern digital infrastructure, supporting a wide range of applications from high-frequency trading to cloud computing. The performance of ...

Last time, I asserted that that WAN-specific application performance issues are driven entirely by three factors: latency, packet loss and bandwidth. This time, we’ll cover three other major factors ...