A distributed admission control model for CoS networks using QoS and SLS monitoring

• Main Author: Lima, Solange
• Publication Date: 2003
• Other Authors: Carvalho, Paulo, Santos, Alexandre, Freitas, Vasco
• Language: eng
• Source: Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
• Download full: http://hdl.handle.net/1822/2990
• topic: Distributed admission Control; Quality-of-service; QoS and SLS monitoring; Class-based networks; Science & Technology

Achieving an admission control strategy for CoS networks covering both intra-domain and end-to-end operation is still an open issue. This paper discusses how AC can be carried out without adding significant complexity to the network control plane and proposes a distributed service-oriented AC model for these networks. The model only involves the network edge nodes leaving the network core unchanged. Ingress nodes perform implicit or explicit service-dependent AC based on both QoS and SLSs utilization metrics, obtained through on-line edge-to-edge monitoring performed at egress nodes. From an end-to-end perspective, the flow request is used both for AC and available service computation. Relevant aspects of the model interrelated areas and implementation key points are also discussed.