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performance.html
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<!DOCTYPE html>
<html lang="en">
<head>
<script src="https://code.jquery.com/jquery.min.js"></script>
<title>Network Performance Inference</title>
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<link href="vendor/bootstrap/css/bootstrap.min.css" rel="stylesheet">
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<link href="css/modern-business.css" rel="stylesheet">
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<body>
<div id="nav-placeholder"> </div>
<script>
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$("#nav-placeholder").replaceWith(data);
});
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<!-- Page Content -->
<div class="container">
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<h2 class="mt-4 mb-3"> Measuring and Inferring Network Performance </h2>
<p>
Our research group has been developing technologies to monitor and measure
the performance of access networks for nearly two decades. Past work
involved developing one of the first router-based Internet "speed
tests", the design of which ultimately formed the basis of the speed
tests used in the Federal Communications Commission's "Measuring
Broadband America" program.
</p>
<p>
More recently, we have developed technology to automatically infer
application performance from encrypted traffic, in a system called Net
Microscope. This technology was the basis for a multi-year investigative
study with <i>The Wall Street Journal</i> on the relationships between
speed and application performance.
</p>
<h4 class="mt-4 mb-3"> Application Performance Inference</h4>
<div class="row">
<div class="col-lg-6">
<p>
Video streaming comprises more than 75 percent of today's Internet
traffic. Accurately measuring the quality of experience of such
service, both in broadband and cellular networks, is paramount. Such
measurement helps ISPs detect performance issues, preferably before
customers make calls about degraded service. This allows ISPs to take
proactive actions that can improve service performance, such as
re-routing a stream over a less congested path.
</p>
<p>
Yet, inferring the quality of an application's service on a network is
challenging. This requires both domain expertise in networking, deep
understanding of the target application, and systems/DevOps
capabilities. Meanwhile, ISPs are spending a massive amount of money
on running customer call centers without good answers to provide: not
because the lack data but because the lack of an efficient and accurate
video QoE monitoring solution.
</p>
<p>
<b>Network Microscope</b> is a system that accurately infers video streaming quality metrics in
real time, such as startup delay or video resolution, by using just a
handful of features extracted from passive traffic measurement. Network
Microscope passively collects a corpus of network features about the
traffic flows of interest in the network and directs those to a
real-time analytics framework that can perform more complex inference
tasks. Network Microscope enables network operators to determine
degradations in application quality as they happen, even when the
traffic is encrypted.
</p>
</div>
<div class="col-lg-6">
<img class="img-fluid rounded mb-4" src="./images/netmicro.jpg" alt="">
</div>
</div>
<!-- /.row -->
<h4 class="mt-4 mb-3"> Access Network Performance Measurement</h4>
<div class="row">
<div class="col-lg-6">
<p>
BISmark is the Broadband Internet Service Benchmark. It is a
project initiated at Prof. Feamster's research group at Georgia
Tech in 2010. It is now led by <a
href="https://noise.cs.uchicago.edu/">University of
Chicago</a>. The project initially developed an OpenWRT-based
platform for performing measurements of
ISP performance, as well as traffic inside the home. BISmark can
measure ISP performance, visualize and monitor traffic
patterns from users and devices inside ia home network, and
perform other network management tasks, such as managing usage
caps.
</p>
<p>
The initial BISmark deployment spanned 400 home networks in 30
countries and resulted in nearly 20 peer-reviewed academic
conference publications. The project also had a dashboard to allow
users to monitor the performance of their home network over time.
The source code is
<a href="https://github.com/projectbismark/">available on Github</a>,
and all of the performance measurements are also publicly
available. The BISmark performance measurements are now integrated
into current deployments ot NetMicroscope.
</p>
</div>
<div class="col-lg-6">
<img class="img-fluid rounded mb-4" src="./images/netdash.png" alt="">
</div>
</div>
<!-- /.row -->
<!-- Pub Content -->
<h4 class="mt-4 mb-3">Selected Publications </h4>
<div class="row">
<div class="col-lg-12">
<ul>
<li>
Inferring Streaming Video Quality from Encrypted Traffic:
Practical Models and Deployment Experience<br />
F. Bronzino, P. Schmitt, S.Ayoubi, G. Martins, R. Teixeira, N.
Feamster<br />
<em>ACM Conference on Measurement and Analysis of Computing
Systems (POMACS)</em> and <em>ACM SIGMETRICS</em>. 2020.
</li>
<p />
<li>
Broadband Internet Performance: A View from the Gateway. <br />
Srikanth Sundaresan , Walter De Donato, Nick Feamster, Renata Teixeira, Sam Crawford, and Antonio Pescapè.<br />
ACM SIGCOMM 2011
</li>
</ul>
</div>
</div>
<!-- Pub -->
<!-- Pub Content -->
<h4 class="mt-4 mb-3">Selected Media</h4>
<div class="row">
<div class="col-lg-2 col-sm-4 mb-4">
</div>
<div class="col-lg-2 col-sm-4 mb-4">
</div>
<div class="col-lg-4 col-sm-4 mb-4">
<a href="https://www.wsj.com/graphics/faster-internet-not-worth-it/"><img class="img-fluid" src="images/wsj.png" alt=""></a>
</div>
<div class="col-lg-2 col-sm-4 mb-4">
</div>
<div class="col-lg-2 col-sm-4 mb-4">
</div>
</div>
<!-- Pub -->
</div>
<!-- /.container -->
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<div id="footer-ph"></div>
<script>
$(function(){
$("#footer-ph").load("./footer.html");
});
</script>
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<script src="vendor/jquery/jquery.min.js"></script>
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</body>
</html>