Implementation and experiments on DiffServ edge router over network-processors

Li Der Chou, Zhi Yuan Chen, Chien Fen Liao, Po Chia Tseng

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


In recent years many multimedia services, such as voice over IP and videoconferencing, have been developed and applied popularly over the Internet. These multimedia services become key applications in home networks, but the bandwidth requirements for these multimedia services grow up rapidly. Thus how to provide a certain degree of Quality of Services (QoS) for the multimedia applications in edge routers is an important issue. The framework of differentiated services (DiffServ) is able to provide QoS by means of packet classifications, flow aggregation and scheduling mechanisms. In the paper a DiffServ edge router is implemented on the Intel IXP425 network processor platform. Network processors are emerging as a programmable alternative to the traditional ASIC-based solutions in scaling up the user-plane processing of network services. The performance of the implemented DiffServ edge router is evaluated by experiments. Exprimental results demonstrate the validation of the implemented system.

Original languageEnglish
Title of host publicationTENCON 2007 - 2007 IEEE Region 10 Conference
StatePublished - 2007
EventIEEE Region 10 Conference, TENCON 2007 - Taipei, Taiwan
Duration: 30 Oct 20072 Nov 2007

Publication series

NameIEEE Region 10 Annual International Conference, Proceedings/TENCON


ConferenceIEEE Region 10 Conference, TENCON 2007


  • Differentiated services
  • Network processors
  • QoS


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