Designing a disaster-resilient network with software defined networking
Designing a disaster-resilient network with software defined networking
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DOI：
10.1109/iwqos.2014.6914312
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发表时间：
2014-05
期刊：
影响因子：
--
通讯作者：
An Xie;Xiaoliang Wang;Wei Wang;Sanglu Lu
中科院分区：
文献类型：
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作者：
An Xie;Xiaoliang Wang;Wei Wang;Sanglu Lu
随着网络设施的广泛部署和对网络可靠性要求的不断提高，自然灾害、停电或恶意攻击等破坏性事件已成为当前通信网络不可忽视的威胁。这种破坏性事件可以同时破坏特定地理区域中的所有设备，并长时间影响许多基于网络的应用。因此，为未来高生存能力的通信服务建立灾难恢复网络是非常必要的。在本文中，我们专注于通过软件定义的网络技术，以减轻灾害风险，同时降低投资和管理成本的集成方法。我们的设计包括一个基于子图的主动保护方法，用于在网络节点快速重路由，并在控制器上采用拼接方法进行有效的灾后恢复。在OpenFlow框架下，通过Mininet仿真器和Nox控制器实现了该系统的设计。数值结果表明，我们的方法可以实现高可靠性，快速恢复和低控制开销。
With the wide deployment of network facilities and the increasing requirement of network reliability, the disruptive event like natural disaster, power outage or malicious attack has become a non-negligible threat to the current communication network. Such disruptive event can simultaneously destroy all devices in a specific geographical area and affect many network based applications for a long time. Hence, it is essential to build disaster-resilient network for future highly survivable communication services. In this paper, we focus on the integrated approach through the technique of software defined networking to mitigate disaster risks while cut down the investment and management costs. Our design consists of a sub-graph based proactive protection approach for fast rerouting at the network nodes and a splicing approach at the controller for effective post-disaster restoration. Such a systematic design is implemented in OpenFlow framework through the Mininet emulator and Nox controller. Numerical results show that our approach can achieve high reliability, fast recovery and low control overhead.