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基于SDN中的INT的轻量级路径一致性验证
Ping Wu1, Yuwei Shang2, Shuaitao Bai2
1Beijing Yungu Kechuang Information Technology Co., Ltd. Beijing 100036, China.
Mathematical biosciences and engineering : MBE
|December 5, 2023
概括
软件定义网络 (SDN) 的新轻量级路径一致性验证机制使用带内网络遥测 (INT) 来降低开销. 这种方法尽量减少带宽使用和通信成本,以实现高效的网络管理.
科学领域:
- 计算机科学 计算机科学
- 网络化 网络化 网络化
- 电信 电信服务 电信服务 电信服务
背景情况:
- 软件定义网络 (SDN) 中的传统路径一致性验证由于探测数据包或线性尺度标签而遭受高带宽和通信开销.
- 由于网络路径的长度增加,现有的方法会带来可扩展性挑战.
研究的目的:
- 为SDN提出一个轻量级路径一致性验证机制.
- 为了减少与现有解决方案相关的显著带宽和通信开销.
- 通过有效的路径验证,提高网络管理效率.
主要方法:
- 引入了一种基于带内网络遥测 (INT) 的新机制.
- 入口开关可能会插入遥测指令头.
- 随后的交换机使用统一采样来更新遥测数据,只携带部分路径信息以保持恒定的标题大小.
- 电路交换机向控制器报告汇总的遥测数据,以验证路径合规性.
- 启发式流选择算法用于网络级验证.
主要成果:
- 拟议的机制有效地限制了数据包头部的开销.
- 实验结果显示,额外的转发延迟是最小的 (不到7%).
- 吞吐量退化限制在最多6%的水平.
结论:
- 开发的基于带内网络遥测 (INT) 的方案为SDN中路径一致性验证提供了有效的解决方案.
- 与传统方法相比,这种方法显著降低了开销.
- 该机制提供了有效的网络级路径验证,性能影响微不足道.
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