An enhanced multi-priority traffic-grooming scheme based on traffic-partition for IP-over-WDM networks

Jianshe Wang; Xiaolong Yang; Sheng Huang; Qianbin Chen

doi:10.1117/12.741714

19 November 2007 An enhanced multi-priority traffic-grooming scheme based on traffic-partition for IP-over-WDM networks

Jianshe Wang, Xiaolong Yang, Sheng Huang, Qianbin Chen

Proceedings Volume 6784, Network Architectures, Management, and Applications V; 678438 (2007) https://doi.org/10.1117/12.741714
Event: Asia-Pacific Optical Communications, 2007, Wuhan, China

Abstract

Multi-priority traffic grooming, providing sub-wavelength traffics of different priorities with varying grooming policies, is an essential functionality for IP over WDM networks. It focuses on QoS guarantee and bigger accommodation for high priority traffics by using specific grooming policy and preemption mechanism. But even when the preemption is proposed, high priority traffics with high bandwidth requirements often experience a relatively high blocking. To resolve this issue, a traffic-partition mechanism is proposed, which partitions a traffic flow and spreads it over multiple paths. In particular, it considers number difference of o-e-o process over different paths in order to choose adapted paths to avoid receiving buffer overflow, which derives from different transmission delays over various lightpaths. The mechanism also explores a way to integrate with preemption algorithm to achieve better blocking performance. The simulation results show that it can effectively lower blocking probability for high priority traffics and bring a useful gain in network access fairness among traffics with different bandwidth requirements.

Citation Download Citation

Jianshe Wang, Xiaolong Yang, Sheng Huang, and Qianbin Chen "An enhanced multi-priority traffic-grooming scheme based on traffic-partition for IP-over-WDM networks", Proc. SPIE 6784, Network Architectures, Management, and Applications V, 678438 (19 November 2007); https://doi.org/10.1117/12.741714

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