Performance Evaluation of Multi-Layer Traffic Engineering Enabled IP-over-ION Networks
Performance Evaluation of Multi-Layer Traffic Engineering Enabled IP-over-ION Networks
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DOI：
10.1007/s11107-004-6432-3
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发表时间：
2005-05
影响因子：
1.7
通讯作者：
Q. Yan;D. Colle;S. D. Maesschalck;B. Puype;I. Lievens;M. Pickavet;P. Demeester
中科院分区：
文献类型：
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作者：
Q. Yan;D. Colle;S. D. Maesschalck;B. Puype;I. Lievens;M. Pickavet;P. Demeester
最近，网络运营商开始在其网络中实施流量工程（TE）技术。这些TE技术通常涉及单层（例如，IP/多协议标签交换（MPLS）层）。虽然单层TE（STE）可以提高网络性能（例如，吞吐量、服务质量（QoS）），但是这种改进受到该网络层中的可用容量的限制。向智能光网络（ION）的演进允许通过在TE动作中涉及多于一个层来进一步增加TE技术可实现的改进。多层TE（Multi-layer TE，MTE）通过适当更新底层光连接，动态地重新配置上层的逻辑拓扑结构，以智能的方式占用网络资源，优化QoS。然而，网络的性能受到MTE所采用的配置方案的影响。因此，在本文中，我们重点分析的MTE配置方案上的MTE行为的影响，并评估网络的性能，通过研究从一个现实的IP-over-ION网络的仿真结果。
Recently, network operators started implementing traffic engineering (TE) techniques in their network. These TE techniques typically involve a single layer (for example, the IP/multi-protocol label switching (MPLS) layer). Although single-layer TE (STE) can improve the network performance (e.g., throughput, quality of service (QoS)), this improvement is bounded by the available capacity in that network layer. The evolution towards intelligent optical networks (IONs) allows further increasing the improvements achievable by the TE techniques, by involving more than one layer in the TE actions. Multi-layer TE (MTE) occupies network resources in a smart way and optimizes the QoS since it dynamically reconfigures the logical topology in the upper layer by properly updating the optical connections in the underlying optical layer. However, the performance of the network is impacted by the configuration scheme adopted by MTE. Therefore, in this paper, we focus on analyzing the influence of the MTE configuration scheme on the MTE behavior, and evaluate the network performance by studying simulation results obtained from a realistic IP-over-ION network.