Workshop on Reducing Internet Latency

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Latency tends to have been sacrificed in favour of headline bandwidth in the way the Internet has been built. This two-day invitation-only workshop aims to galvanise action to fix that. All layers of the stack are in scope.
Latency is an increasingly important topic for networking researchers and Internet practitioners alike. Data from Google, Microsoft, Amazon and others indicate that latency increases for interactive Web applications result in less usage and less revenue from sales or advertising income. Whether trying to provide platforms for Web applications, high-frequency stock trading, multi-player online gaming or ‘cloud’ services of any kind, latency is a critical factor in determining end-user satisfaction and the success of products in the marketplace. Consequently, latency and variation in latency are key performance metrics for services these days.
But latency reduction is not just about increasing revenues for big business. Matt Mullenweg of WordPress motivates work on latency reduction well when he says, “My theory here is when an interface is faster, you feel good. And ultimately what that comes down to is you feel in control. The [application] isn’t controlling me, I’m controlling it. Ultimately that feeling of control translates to happiness in everyone. In order to increase the happiness in the world, we all have to keep working on this.”
Invitations to attend the workshop will depend on receipt of a position paper. In a spirit of co-ordination across the industry, submissions are encouraged from developers and network operators as well as the research and standards communities.
A wide range of latency related topics are in scope including, but not limited to:
– surveys of latency across all layers
– analyses of sources of latency and severity/variability
– the cost of latency problems to society and the economy, or the value of fixing it
– principles for latency reduction across the stack
– solutions to reduce latency, including cross-layer
– deployment considerations for latency reducing technology
– benchmarking, accreditation, measurement and market comparison practices


Submission Number Title Author(s)
1 A Measurement-Centred Approach to Latency Reduction – PDF (175kB) Brian Trammell, Alessandro Finamore, Marco Mellia
2 PP#2 – PDF (280kB) Lucien Avramov, Jacob Rapp
3 Hidden Sources of Internet Latency – PDF (337kB) Nick Feamster
4 Latency Reduction in Home Access Gateways with Shortest Queue First – PDF (255kB) Nabil Benameur, Fabrice Guillemin, Luca Muscariello
5 CDT Position Paper – PDF (177kB) Alissa Cooper
6 ECN & Early ECN Marking – PDF (139kB) Michael Welzl, Gorry Fairhurst, Naeem Khademi
7 PP#7 – PDF (25kB) Greg White
9 IPv4 and IPv6 Latency Analysis for Faster Web Browsing and Network Tuning – PDF (146kB) Rich Andreas, Salil Banerjee, John Brzozowski, James Ehlinger, Eric Frishman, Tony Tauber
11 Two Ways to Trade Bandwidth for Latency – PDF (40kB) Joe Touch
12 LAWIN: a Latency Aware Internet architecture: an alternative reducing a latency – PDF (41kB) Katsushi Kobayashi
15 On the Treatment of Application-Limited Streams (Revised) – PDF (149kB) Andreas Petlund, Anna Brunstrom, Jonas Markussen, Markus Fuchs
16 A Survey of Latency Reducing Techniques and their Merits – PDF (337kB) Bob Briscoe, Anna Brunstrom, David Ros, David Hayes
17 Delay-based Congestion Control for Low Latency – PDF (98kB) David Hayes, David Ros
19 Supporting Low Latency near the Network Edge and with Challenging Link Technologies – PDF (45kB) Markku Kojo, Ilpo Järvinen, Hannes Tschofenig, Aaron Yi Ding
21 Adaptive and Scalable Congestion Control Wanted! – PDF (117kB) Mirja Kühlewind
22 Latency signals – PDF (45kB) Piers O’Hanlon
23 Making latency matter – PDF (44kB) Toke Høiland-Jørgensen
24 Latency – possible issues for public policy and regulation – PDF (102kB) Ewan Sutherland
25 PP#25 – PDF (64kB) Mat Ford
28 On Reducing Latencies below the perceptible – PDF (78kB) Dave Täht
29 Low Latency Requires Smart Queuing: Traditional AQM is not enough! – PDF (110kB) Jim Gettys
31 Latency Effects on Broadband Performance in South Africa – PDF (1.2MB) Marshini Chetty, Enrico Calandro, Nick Feamster
32 Networked Performances and Natural Interaction via LOLA: Low Latency High Quality A/V Streaming System – PDF (725kB) Carlo Drioli, Claudio Allocchio, Nicola Buso
33 Reducing Internet Latency – PDF (51kB) Matt Mathis

Slides presented during the workshop

Submission Number Title Author(s)
LOLA: A Low Latency Use Case – PPTX (16.2MB) Claudio Allocchio
2 IPv4 and IPv6 Latency Analysis – PDF (933KB) Salil Banerjee
3 Survey of latency reducing techniques and their merits – PPTX (787KB)  Bob Briscoe
4 On the Treatment of Application-Limited Streams – PDF (137KB) Anna Brunstrom
5 ECN – PDF (54KB) Gorry Fairhurst
6 Delay Based Congestion Control for Low Latency – PDF (486KB) David Hayes
7 LAWIN: the Latency-AWare InterNet architecture – (1.8MB) Katsushi Kobayashi
8 Requirements on Congestion Control: Adaptive and Scalable CC wanted! – PDF (63KB)  Mirja Kühlewind
9 Latency Signals – PDF (1.1MB)  Piers O’Hanlon
10 Designing accessible latency metrics – PDF (86KB) Toke Høiland-Jørgensen
11 A Latency Taxonomy and Two Opportunities – PPTX (382KB) Joe Touch
12 Latency in DOCSIS Networks – PDF (1.9MB) Greg White
Program committee
Mat Ford, Internet Society, co-chair
Bob Briscoe, BT, co-chair
Gorry Fairhurst, University of Aberdeen
Arvind Jain, Google
Jason Livingood, Comcast
Andrew McGregor, Google
To contact the Program Committee, please email
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Wednesday 25 September 2013 –

Thursday 26 September 2013

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