一种面向航空集群机载网络的分布式更新方法  

A Distributed Updating Method Geared to the Airborne Network of Aviation Swarm

作　　者：陈坤[1] 吕娜 朱海峰[1] 方宇 CHEN Kun;LYU Na;ZHU Haifeng;FANG Yu(Information and Navigation College,Air Force Engineering University,Xi’an 710077,China)

机构地区：[1]空军工程大学信息与导航学院,西安710077

出　　处：《空军工程大学学报（自然科学版）》2020年第5期99-105,共7页Journal of Air Force Engineering University(Natural Science Edition)

基　　金：国家自然科学基金(61703427)。

摘　　要：针对当前集中式网络更新方法更新时间长且过度依赖控制器的问题,为降低网络更新时间和减缓控制器负荷,提出一种面向航空集群机载网络的分布式更新方法。设计改进的更新消息,控制器通过生成更新依赖图进行更新消息的构造,将更新依赖关系编码到更新消息中下发到数据平面;而后交换机分布式执行更新操作,利用询问和通知消息进行更新顺序协调,从而在数据平面实现分布式网络更新。仿真实验表明:与现有集中式更新方法相比,所提分布式更新方法能够通过降低更新期间的节点交互次数来减少更新协调时间,从而降低业务流更新时间以及整个网络更新时间。Aimed at the problems that the current centralized network update method remains to be long in update time and excessively dependent on the controller,and in order to save the network update time and slow down the controller load,a distributed update method geared to the airborne network of aviation swarm is proposed.A modified update message is designed.The controller carries out the construction of update message by generating the update dependency graph,encodes the update dependency relationship into the update message,and sends it to the data plane.And then the switch distributed update operation is made by using the query and notification message to update the order coordination,achieving the distributed network update in the data plane.The simulation results show that compared with the existing centralized update methods,the proposed distributed update method can reduce the update coordination time by reducing the number of node interactions during the update period,saving much update time of the business flow and the entire network.

关 键 词：航空集群 机载网络 软件定义网络 数据平面 分布式更新 

分 类 号：TP302[自动化与计算机技术—计算机系统结构]