Kitt Tientanopajai creator Kanchana Kanchanasut Chairperson Ahmed, Kazi Mohiuddin Examination Committee Vatcharaporn Esichaikul Examination Committee Ministry of University Affairs Government of Thailand Scholarship donor text series technical report th Pathum Thani, Thailand Asian Institute of Technology 2005 continuing eng 64 p. : ill. This thesis presents a path-vector protocol to support QoS-based routing. The protocol allows nodes in the network to exchange paths, and construct new paths using the distributed algorithm implemented. Explicit paths provided by the protocol could be used for both QoS and best-effort services. To maintain the scalability, the protocol reduces the number of paths by using a clustering method. The method searches and removes paths based on similarity of measurements of path metrics. The results from simulations show that the protocol scales quite well to the size of the network and is capable to provides paths for different kinds of constraints. The clustering algorithm dramatically reduces the number of paths compared to a generic path-vector algorithm. Still, the algorithm can achieve higher average success rate of QoS path setup, and smaller average number of hops compared to the existing QoS path computation algorithms. A dissertation submitted in partial fulfillment of the requirements for the degree of Doctor of Engineering, Schoool of Advanced Technologies Thesis (Ph.D.) - Asian Institute of Technology, 2005 Routers (Computer networks) Internet Asian Institute of Technology. http://203.159.5.9/ait-thesis/detail.php?q=B00275 http://203.159.5.9/ait-thesis/detail.php?q=B00275 060404 20260817161529.0