Supporting application network flows with multiple QoS constraints

Amit Mondal*, Puneet Sharma, Sujata Banerjee, Aleksandar Kuzmanovic

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations


There is a growing need to support real-time applications over the Internet. Real-time interactive applications often have multiple quality-of-service (QoS) requirements which are application specific. Traditional provisioning of QoS in the Internet through IP routing - Intserv or Diffserv - faces many technical challenges, and is also deterred by the huge deployment issues. As an alternative, application providers often build their own application-specific overlay networks to meet their QoS requirements. In this paper, we present a unified framework which can serve diverse applications with multiple QoS constraints. Our scalable flow route management architecture, called MCQoS, employs a hybrid approach using a path vector protocol to disseminate aggregated path information combined with on-demand path discovery to find paths that match the diverse QoS requirements. It uses a distributed algorithm to dynamically adapt to an alternate path when the current path fails to satisfy the required QoS constraints. We do large-scale simulation and analysis to show that our approach is both efficient and scalable, and that it substantially outperforms the state of the art protocols in accuracy. Our simulation results show that MCQoS can reduce the false negative percentage to less than 1% compared with 5- 10% in other approaches, and eliminates false positives, whereas other schemes have false positive rates of 10-20% with minimal increase in protocol overhead. Finally, we implemented and deployed our system on the Planetlab testbed for evaluation in a real network environment.

Original languageEnglish (US)
Title of host publication2009 17th International Workshop on Quality of Service, IWQoS 2009
StatePublished - Nov 20 2009
Event2009 17th International Workshop on Quality of Service, IWQoS 2009 - Charleston, SC, United States
Duration: Jul 13 2009Jul 15 2009

Publication series

NameIEEE International Workshop on Quality of Service, IWQoS
ISSN (Print)1548-615X


Other2009 17th International Workshop on Quality of Service, IWQoS 2009
Country/TerritoryUnited States
CityCharleston, SC

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


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