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为了研究弹性分组环的网络性能,特别是业务的最大接入延时,为网络配置提供有效的参考,基于网络演算理论建立了弹性分组环业务传输模型,分析了弹性分组环网络中各类业务在网络中的最大接入延时,并提出在特定条件下各类业务最大接入延时的计算方法。仿真结果表明:弹性分组环网络中高优先级业务的最大接入延时小于低优先级业务的最大接入延时;业务最大接入延时与环路站点无关,不受环路规模的影响;环路业务量、整形器容量以及最大分组长度的增加都会使得业务最大接入延时增大。该计算方法易于实现,便于在工程环境下对性能快速估算,具有较好的实用性。
In order to study the network performance of flexible packet ring, especially the maximum access delay of the service, it provides an effective reference for the network configuration. Based on the theory of network calculus, the flexible packet ring service transfer model is established and the types of services in the flexible packet ring network The maximum access delay in the network and put forward the calculation method of the maximum access delay of all kinds of services under certain conditions. The simulation results show that the maximum access delay of high priority service in flexible packet ring network is less than the maximum access delay of low priority service. The maximum access delay of service is not related to the site of the loop and is not affected by the scale of the loop. Loop traffic, shaper capacity, and maximum packet length increases the maximum access delay for traffic. The calculation method is easy to implement, which is convenient for rapid estimation of performance under engineering environment and has good practicability.