A GMPLS/OBS network architecture enabling QoS-aware end-to-end burst transport

P. Pedroso, J. Perelló, M. Klinkowski, D. Careglio, S. Spadaro, J. Solé-Pareta
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引用次数: 5

Abstract

This paper introduces a Generalized Multi-Protocol Label Switching (GMPLS)-enabled Optical Burst Switched (OBS) network architecture featuring end-to-end QoS-aware burst transport services. The proposed GMPLS/OBS architecture guarantees specific burst loss probability requirements, independently of the offered network load. This is achieved through the configuration of burst Label Switched Paths (LSPs) over the network which are set-up at the GMPLS control plane level only, while it is the OBS node controller the responsible for eventually committing data plane resources upon burst arrival. In such a way, statistical multiplexing feature is preserved and, at the same time, the end-user QoS demands are met by tightly dimensioning the LSPs. A Mixed Integer Linear Programming (MILP) model is devised to provide the optimal burst LSPs dimensioning according to the offered network load and QoS requirements. Moreover, GMPLS-driven capacity reconfigurations are dynamically triggered whenever unfavorable network conditions are detected. The performance of the proposed architecture is extensively assessed on several network scenarios. Future work on the topic is finally outlined.
GMPLS/OBS网络架构,支持qos感知的端到端突发传输
本文介绍了一种支持通用多协议标签交换(GMPLS)的光突发交换(OBS)网络架构,该网络具有端到端qos感知突发传输服务。提出的GMPLS/OBS体系结构保证了特定的突发损失概率要求,与提供的网络负载无关。这是通过在网络上配置突发标签交换路径(lsp)来实现的,这些lsp仅在GMPLS控制平面级别上设置,而OBS节点控制器负责在突发到达时最终提交数据平面资源。这样既保留了统计复用特性,又通过对lsp的严格量纲化来满足终端用户的QoS需求。根据给定的网络负载和QoS要求,设计了混合整数线性规划(MILP)模型来提供最优的突发lsp维数。此外,当检测到不利的网络条件时,动态触发gmpls驱动的容量重新配置。所提出的体系结构的性能在几个网络场景中进行了广泛的评估。最后概述了今后在这方面的工作。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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