Monitoring Persistently Congested Internet Links

Date Added: Jul 2009
Format: PDF

Measurement tools that can accurately locate and monitor congested Internet links would significantly help one understand how the Internet operates. However, developing such tools is challenging, especially when the authors' concerned target is congestion on the core Internet links rather than that on the relatively easily measured access links. Congestion on core links - and persistent congestion in particular - can reveal systematic problems such as routing pathologies, poorly-engineered network policies, or non-cooperative inter-AS relationships.