1. End-user Based Network Measurement and Diagnosis
Yan Chen
Lab for Internet & Security Technology (LIST)
Northwestern University

2. Collaborations with Microsoft
Trustworthy Computing Curriculum Award 2004 (with co-PI Andrea Matwyshyn)
Interdisciplinary Trustworthy Computing Curriculum Development
Trustworthy Computing Curriculum Award 2005 (with three co-PIs in NU)
Integrated Modular Trustworthy Computing Curriculum Development
Attended the TwC Summit on 2005 and Faculty Summit on 2006
Interested in the New Faculty Fellowship

3. Network Anomaly/Intrusion Detection and Mitigation
High-speed network traffic recording & analysis
Online polymorphic worm signature generation
Vulnerability analysis of WiMAX protocols w/ formal methods
Published in IEEE SSP, Infocom,
SIGCOMM IMC, ICDCS

4. End-user Based Network Measurement and Diagnosis
Maybe good fit for the Internet Technology and Services?
93 hours?

5. Two Types of Approaches
Overlay network (P2P system) based
Individual User based

6. Overlay Network Approach
topology
Overlay Network Operation Center
measurements
End hosts
Suitable for overlay service providers, such as Akamai
Scalable, accurate and adaptive to traffic/topology changes
Published in SIGCOMM 2004, 2006 and to appear in Transaction on Networking
For example, assume symmetric routing, the existing system has 6 paths, but only 4 links. Monitoring of 4 independent paths can solve the loss rates of all links, then we can compute the loss rate of other 2 paths.
Basically, there is an NOC. The end hosts will measure the topology and send to NOC. NOC will select 4 paths to measure and instrument certain end hosts to do the measurement, and collect the results. Then it compute the loss rates of the basis set and infer the loss rates of all other paths.
Assumptions:
Break into 2 slides

7. Individual User Based Do not need any extra support
Accurately separate the forward link loss and reverse link loss