A Distributed Admission Control Model for CoS Networks using QoS and SLS Monitoring

Solange Lima, Paulo Carvalho, Alexandre Santos and Vasco Freitas

Universidade do Minho
Departamento de Informática
P-4710-057 Braga, Portugal

Tel.: +351 253 604436
Fax.: +351 253 604471
E-mail: {solange,pmc,alex,vf} (at) di.uminho.pt


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.

IEEE 2003 International Conference on Comunications (ICC 2003), Anchorage, Alaska, USA, May 11-15, 2003.