WAN Bandwidth Estimation

Existing Bandwidth Estimation (bwest) tools

The testbed

The main testbed

The main testbed (cont)

Controlling the testbed

Server features

Automated tool execution

The executor wrapper

Tools evaluation

Evaluation strategy

Sample results

The topology knowledge

Information about the real topology

Database overview

Important relations among components

The Database E/R Scheme

Links: logical or physical?

Links: logical or physical? (cont)

Information sources

How is the topology determined?

Sample topology and traceroute behaviour

Sample topology and traceroute behaviour

Sample topology and traceroute behaviour

Sample topology and traceroute behaviour

Sample topology and traceroute behaviour

Sample topology and traceroute behaviour

Sample topology and traceroute behaviour

Sample topology and traceroute behaviour

Sample topology and traceroute behaviour

Sample topology and traceroute behaviour

Sample topology and traceroute behaviour

Sample topology and traceroute behaviour

Sample topology and traceroute behaviour

Sample topology and traceroute behaviour

Hidden interfaces assumption

More details to come...

Thanks CAIDA !!