基于QoS和SLA的网络计费系统设计

Design on Network Billing System Based on QoS and SLA

传统网络计费一般采用单一计费原则,不能体现多级服务的差异性,也不能验证收取费用的合理性。为了解决这些问题,设计了一种基于QoS(Quality of Service)和SLA(Service Level Agreement)的计费策略,并在Linux环境下进行了系统实现,整个系统模块包括用户SLA签订、用户认证和配置、接纳控制、数据采集和计费处理。在实验室环境下,进行了系统功能验证和计费策略对比分析,结果表明基于QoS和SLA的计费系统可以较好地解决传统网络计费方式存在的不足,满足下一代网络应用发展的需要。

Traditional network billing,with a single billing method,could neither reflect the differentiation of the multi-level service nor validate rationality of billing.In order to solve these problems,we design a scheme of ＂QoS-SLA-based billing system＂.And we implement the billing system under the circumstance of Linux,which includes SLA subscription,authentication and deployment,admit control,data collection,data disposal and billing.At last,the experiments of comparing the two billing schemes prove that our billing scheme could solve the disadvantages with traditional network billing scheme and could satisfy the demand of NGN＇s development.