University of Cambridge > Talks.cam > Computer Laboratory Systems Research Group Seminar > Revisiting delay-based TCP, and implementing 'stateless' TCP for HTTP servers

Revisiting delay-based TCP, and implementing 'stateless' TCP for HTTP servers

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This talk will cover two papers being presented at IFIP Networking 2011 [1] and NOSSDAV 2011 [2] respectively. The first looks at a novel variant of TCP that uses the gradient of RTT fluctuations to infer when losses are congestion-induced or not, and minimises induced queuing delays relative to loss-based TCP . The second looks at some simplifications (‘hacks’) to the TCP state machine that significantly reduces the resource requirements of HTTP servers.

Bio: Grenville Armitage is a Professor of Telecommunications Engineering at Swinburne University of Technology, Melbourne, Australia. He is also Director of the Centre for Advanced Internet Architectures, a small research group at the University. He was active in industry R&D and the IETF in the 1990s, and active in academia during the past decade. His interests tend to revolve around anything to do with IP network infrastructure (such as performance, scalability, resilience and monitoring) that ultimately impacts on an end-user’s experience of ‘the internet’. More at http://caia.swin.edu.au/cv/garmitage/

[1] D. Hayes, G. Armitage, “Revisiting TCP Congestion Control using Delay Gradients,” IFIP /TC6 NETWORKING 2011 , Valencia, Spain, 9-13 May 2011

[2] D. Hayes, M. Welzl, G. Armitage, M. Rossi, “Improving HTTP performance using “Stateless” TCP ,” ACM NOSSDAV 2011 , Vancouver, Canda, June 2011

This talk is part of the Computer Laboratory Systems Research Group Seminar series.

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