The revised ARPANET routing metric
SIGCOMM '89 Symposium proceedings on Communications architectures & protocols
Shortest path first with emergency exits
SIGCOMM '90 Proceedings of the ACM symposium on Communications architectures & protocols
Quality of service based routing: a performance perspective
Proceedings of the ACM SIGCOMM '98 conference on Applications, technologies, architectures, and protocols for computer communication
Load-sensitive routing of long-lived IP flows
Proceedings of the conference on Applications, technologies, architectures, and protocols for computer communication
A simple approximation to minimum-delay routing
Proceedings of the conference on Applications, technologies, architectures, and protocols for computer communication
Routing stability in congested networks: experimentation and analysis
Proceedings of the conference on Applications, Technologies, Architectures, and Protocols for Computer Communication
Stability issues in OSPF routing
Proceedings of the 2001 conference on Applications, technologies, architectures, and protocols for computer communications
Hop-by-hop quality of service routing
Computer Networks: The International Journal of Computer and Telecommunications Networking
An Approach to Support Traffic Classes in IP Networks
QofIS '00 Proceedings of the First COST 263 International Workshop on Quality of Future Internet Services
TAMCRA: a tunable accuracy multiple constraints routing algorithm
Computer Communications
Quality-of-service routing for supporting multimedia applications
IEEE Journal on Selected Areas in Communications
Multi-Class Measurement Based Admission Control for a QoS Framework with Dynamic Resource Management
Journal of Network and Systems Management
Research challenges in QoS routing
Computer Communications
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An intra-domain Quality of Service (QoS) routing protocol for the Differentiated Services framework is being developed at the University of Coimbra (UC-QoSR). The main contribution of this paper is the evaluation of the scalability and stability characteristics of the protocol on an experimental test-bed. The control of protocol overhead is achieved through a hybrid approach of metrics quantification and threshold based diffusion of routing messages. The mechanisms to avoid instability are: (i) a class-pinning mechanism to control instability due to frequent path shifts; (ii) the classification of routing messages in the class of highest priority to avoid the loss of accuracy of routing information. The results show that a hop-by-hop, link-state routing protocol, like Open Shortest Path First, can be extended to efficiently support class-based QoS traffic differentiation. The evaluation shows that scalability and stability under high loads and a large number of flows is achieved on the UC-QoSR strategy.