非SDN路由器在网络虚拟化中的研究与实现
首发时间:2019-02-14
摘要:在SDN的网络环境中,可以很轻易对底层网络进行资源上的共享和隔离。现有的虚拟网络映射算法可以利用SDN这一优势把虚拟网络映射至底层物理网络中。但是在目前,许多网络仍然包含了非SDN路由器,现有的算法不能在这种混合网络中进行映射。本文改进了vnmFlib算法,并把非SDN路由器的工作状态进行分类。把处于可以转变为SDN交换机的非SDN路由器包含进vnmFlilb算法的搜索过程中。经过实验对比分析,这种改进在时间花费上比原有算法少。证实了这种改进算法的有效性。
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Research and Implementation of Non-SDN Router in Network Virtualization
Abstract:In the SDN network environment, resources can be easily shared and isolated on the underlying network. The existing virtual network mapping algorithm can take advantage of SDN to map the virtual network to the underlying physical network. However, at present, many networks still contain non-SDN routers, and existing algorithms cannot be mapped in such a hybrid network. This paper improves the vnmFlib algorithm and classifies the working state of non-SDN routers. The non-SDN routers that can be converted to SDN switches are included in the search process of the vnmFlilb algorithm. After experimental comparison and analysis, this improvement is less time-consuming than the original algorithm. The effectiveness of this improved algorithm is confirmed.
Keywords: Computer Networks Virtual Network Mappings vnmFlib
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