Can Host-Based SDNs Rival the Traffic Engineering Abilities of Switch-Based SDNs?
Can Host-Based SDNs Rival the Traffic Engineering Abilities of Switch-Based SDNs?
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DOI：
10.1109/nof50125.2020.9249110
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发表时间：
2020-10
期刊：
影响因子：
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通讯作者：
Yu Lei;Julian P. Lanson;Remy M. Kaldawy;J. Estrada;Craig A. Shue
中科院分区：
文献类型：
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作者：
Yu Lei;Julian P. Lanson;Remy M. Kaldawy;J. Estrada;Craig A. Shue
软件定义网络（SDN）范式为网络运营商提供了极大的灵活性。然而，SDN社区一直专注于基于交换机的实现，这带来了一些挑战。首先，有些可能需要大量的硬件成本来升级网络。此外，基于交换机的SDN中的细粒度流控制导致众所周知的基本可扩展性限制。这些挑战可能会限制SDN技术的应用范围。在这项工作中，我们探讨了基于主机的SDN代理可以在多大程度上实现与基于交换机的SDN的功能奇偶校验。之前的工作已经表明了基于主机的SDNs在安全和访问控制方面的潜力。我们的研究发现，通过适当的准备，基于主机的代理在流量工程的其余关键领域提供了基于交换机的SDN相同的功能，即使在传统的管理交换机网络。我们发现这种方法提供了与基于交换机的SDN相当的性能，同时消除了基于交换机的SDN部署的流表可扩展性和成本问题。在这项工作中，我们探讨了基于主机的SDN代理可以在多大程度上实现与基于交换机的SDN的功能奇偶校验。先前的工作已经显示了基于主机的SDN在安全和访问控制方面的潜力。我们的研究发现，通过适当的准备，基于主机的代理在流量工程的其余关键领域提供了基于交换机的SDN相同的功能，即使在传统的管理交换机网络。我们发现这种方法提供了与基于交换机的SDN相当的性能，同时消除了基于交换机的SDN部署的流表可扩展性和成本问题。
The software-defined networking (SDN) paradigm offers significant flexibility for network operators. However, the SDN community has focused on switch-based implementations, which pose several challenges. First, some may require significant hardware costs to upgrade a network. Further, fine-grained flow control in a switch-based SDN results in well-known, fundamental scalability limitations. These challenges may limit the reach of SDN technologies. In this work, we explore the extent to which host-based SDN agents can achieve feature parity with switch-based SDNs. Prior work has shown the potential of host-based SDNs for security and access control. Our study finds that with appropriate preparation, a host-based agent offers the same capabilities of switch-based SDN s in the remaining key area of traffic engineering, even in a legacy managed-switch network. We find the approach offers comparable performance to switch-based SDNs while eliminating the flow table scalability and cost concerns of switch-based SDN deployments. In this work, we explore the extent to which host-based SDN agents can achieve feature parity with switch-based SDNs. Prior work has shown the potential of host-based SDNs for security and access control. Our study finds that with appropriate preparation, a host-based agent offers the same capabilities of switch-based SDN s in the remaining key area of traffic engineering, even in a legacy managed-switch network. We find the approach offers comparable performance to switch-based SDNs while eliminating the flow table scalability and cost concerns of switch-based SDN deployments.