TY - JOUR A2 - Torresen，吉姆AU - 张挺AU - 刘滨PY - 2019 DA - 2019年3月4日TI - 暴露终端到终端的延迟在软件定义网络SP - 7363901 VL - 2019 AB -软件定义网络（SDN）向我们展示了一个有前途的图片来部署快速和具有成本效益的方式，要求服务。截至目前，大多数SDN用例是部署在企业/校园网络和数据中心网络。然而，应用SDN到大型的网络，如广域网（WAN）时，分组遍历的端至端延迟被怀疑是非常大的，待进一步研究的需要。此外，严格的时间限制是在SDN实时应用的基石。了解在基于SDN-大型网络分组延迟是用于开关架构的适当的设计和网络算法如流量控制算法的最优化至关重要。在本文中，我们提出在SDN的端至端延迟它由多个节点，充分暴露其有助于长期拖延的组件进行彻底系统的探索。我们披露SDN交换机不能完全避免，即使在流动设置的概率主动模式和行为数据挖掘流程设置的产生。我们提出了端至端延迟的分析模型。该模型考虑到了不同的规则安装时间消耗在不同的交换机的影响。 Considering the delay in switches contributes a large proportion to the entire delay, we conduct various measurements on the delay of a single switch. Results for the delay at different flow setup rates and with different rule priority patterns are presented. Furthermore, we study the impact on packet delay caused by ternary content addressable memory (TCAM) update. We measure parameters in the delay model and find that if SDN is deployed in all segments of WAN, the delay of packet traversal will be increased up to 27.95 times in the worst case in our experimental settings, compared with the delay in conventional network. Such high delay may eventually lead the end-to-end connections fail to complete if no additional measures are taken. SN - 1687-7195 UR - https://doi.org/10.1155/2019/7363901 DO - 10.1155/2019/7363901 JF - International Journal of Reconfigurable Computing PB - Hindawi KW - ER -