Resilient virtual communication networks using multi-commodity flow based local optimal mapping

Resilient virtual communication networks using multi-commodity flow based local optimal mapping
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使用基于多商品流的局部最优映射的弹性虚拟通信网络

DOI:
10.1016/j.jnca.2018.02.022
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发表时间:
2018-05
影响因子:
8.7
通讯作者:
Zomaya Albert Y
Zomaya Albert Y
中科院分区:
计算机科学2区
文献类型:
--
作者:
Yang Qiang;Li Wei;de Souza Jose Neuman;Zomaya Albert Y

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网络虚拟化被认为是促进异构服务和机制走向下一代网络架构的有前途的方法,它可以极大地提高网络资源的全局利用效率,从而提高服务交付的能力。然而,虚拟网络的抗毁性长期以来一直被忽视,研究工作很少。在本文中,我们提出了一种新颖的虚拟网络恢复方法MFP-VNMH,该方法可以增强物理基板中物理链路故障的VN映射和服务恢复,同时避免整个VN的重新映射。与整体 VN 重新映射方法和端到端链路重新映射方法相比,通过对一系列网络场景进行广泛的数值实验来评估所提出的 MFP-VNMH 的性能。结果令人鼓舞,并证明了其在物理基板故障时进行 VN 映射更新和服务恢复的有效性和效率。
Network virtualization has been considered a promising approach for promoting heterogeneous services and mechanisms towards the next-generation network architectures, which can greatly improve the global utilization efficiency of network resources, and hence the capacity of service delivery. However, virtual network invulnerability has long been ignored and little research effort has been made. In this paper, we presented a novel virtual network restoration approach, MFP-VNMH, which could enhance the VN mapping and service restoration subject to the physical link failure in the physical substrate whilst avoiding the remapping of the overall VNs. The performance of proposed MFP-VNMH is assessed through extensive numerical experiments for a range of network scenarios in comparison with the overall VN remapping approach and the end-to-end link remapping approach. The result is encouraging and demonstrates its effectiveness and efficiency for VN mapping update and service restoration upon physical substrate failures.
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