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Stanford University Networking Seminar


Mirja K├╝hlewind (ETH Zurich)
Towards Low Latency Support for the Internet

12:15pm, Thursday, April 2 2015
Gates 104

About the Talk

The ossification of the Internet with respect to the deployment of new protocols and protocol extensions limits support of new service requirements. In particular, low end-to-end latency is becoming more and more important for emerging services and is not well supported today. This talk will focus on latency that is induced by network buffers and will discuss the following techniques to support low latency: 1) the use of Explicit Congestion Notification (ECN) to signal congestion early and e.g. use this signal for DCTCP-like congestion control 2) a new approach for TCP congestion control, called TCP SIAD, that is optimized for high speed and low latency support and 3) a new approach, called SPUD, for end-to-middle signaling (and vise versa) to expose application requirements and network support. These three approaches complement each other as low latency support can only be reached by involving the endhost and the middle as well as providing appropriate signaling between these elements.

About the Speaker

Mirja K├╝hlewind is a post-doctoral researcher at the Communication Systems Group (CSG) of the Computer Engineering and Networks Laboratory at ETH Zurich. Before that until July 2014 she was a research staff member and PhD student at the Institute of Communication Networks and Computer Engineering (IKR) at University of Stuttgart. She is foremost working on the design of transport protocols with a focus on congestion control. She is an author of RFC6817 on Low Extra Delay Background Transport (LEDBAT) and currently chair of the IETF RTP Media Congestion Avoidance Techniques (rmcat) working group. Further she is a member of the IETF TSV directorate.