Tomography-based Overlay Network Monitoring and its Applications. Yan Chen. Joint work with David Bindel, Brian Chavez, Hanhee Song, and Randy H. Katz UC Berkeley. Overlay Network Operation Center. End hosts. topology. measurements. Problem Formulation.
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Tomography-based Overlay Network Monitoring and its Applications
Joint work with David Bindel, Brian Chavez, Hanhee Song, and Randy H. Katz
Overlay Network Operation Center
Given n end hosts on an overlay network and O(n2) paths, how to select a minimal subset of paths to monitor so that the loss rates/latency of all other paths can be inferred.
k = 2
k = 3
Real links (solid) and overlay
paths (dotted) going through them
Experiments on Planet Lab
Tomography-based Overlay Monitoring Results
Adaptive Overlay Streaming Media
UC San Diego
+ Easy batch processing via SSH
- No root privileges
- Limited tools
- Linux-only platform
- Limited programming language choices
Adaptive Streaming Media Architecture