On scalable network resource management using bandwidth brokers

Zhi-Li Zhang, Zhenhai Duan, Y. Thomas Hou

Research output: Contribution to conferencePaperpeer-review

15 Scopus citations


In this paper we study the scalability issue in the design of a centralized bandwidth broker model for dynamic control and management of QoS provisioning. We propose and develop a path-oriented, quota-based dynamic bandwidth allocation mechanism for efficient admission control operations under the centralized bandwidth broker model. We demonstrate that this dynamic bandwidth allocation mechanism can significantly reduce the overall number of QoS state accesses/updates, thereby increasing the overall call processing capability of the bandwidth broker. Based on the proposed dynamic bandwidth allocation mechanism, we also extend the centralized architecture with a single bandwidth broker to a hierarchically distributed architecture with multiple bandwidth brokers to further improve its scalability. Our study demonstrates that the bandwidth broker architecture can be designed in such a manner that it scales with the increase in the network capacity.

Original languageEnglish (US)
Number of pages15
StatePublished - Dec 1 2002
Event2002 IEEE/IFIP Network Operations and Management Symposium - Florence, Italy
Duration: Apr 15 2002Apr 19 2002


Other2002 IEEE/IFIP Network Operations and Management Symposium


  • Admission control
  • Bandwidth broker
  • Differentiated services
  • Internet
  • Quality of service
  • Resource reservation
  • Scalability


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