Bridging the gap for end-to-end QoS in the optical Internet

Yong Ouyang; Qingji Zeng; Wei Wei

doi:10.1117/12.509250

8 August 2003 Bridging the gap for end-to-end QoS in the optical Internet

Yong Ouyang, Qingji Zeng, Wei Wei

Proceedings Volume 5245, Internet Quality of Service; (2003) https://doi.org/10.1117/12.509250
Event: ITCom 2003, 2003, Orlando, Florida, United States

Abstract

QoS guarantees need to be constant along the entire path between source and destination, i.e. end-to-end. However, for traffics across several domains, the domains are often with different administrations and technical characteristics. To guarantee QoS in the inter-domains is becoming a challenge for end-to-end QoS. Especially, for DiffServ flows traversing a transit WDM network in the Optical Internet, there exits a QoS gap between the DiffServ-aware MPLS sub-network and the MPλS sub-network. In this article, we study the convergence of the QoS schemes in these two sub-networks to achieve end-to-end QoS in the Optical Internet. We first give a review of QoS models in the IP network and WDM optical network and compare their difference for supporting QoS. Then, we study the end-to-end QoS mechanism in the Optical Internet, and propose a QoS mapping method between the IP/MPLS sub-network and the MPλS sub-network. Based on the QoS mapping method, an end-to-end QoS guaranteed LSP provisioning scheme in the Optical Internet is presented at this end of the paper.

Citation Download Citation

Yong Ouyang, Qingji Zeng, and Wei Wei "Bridging the gap for end-to-end QoS in the optical Internet", Proc. SPIE 5245, Internet Quality of Service, (8 August 2003); https://doi.org/10.1117/12.509250

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