电力数据网络中的QoS体系研究

Study on service quality architecture in power data networks

端到端网络服务质量(QoS)的重要性在电力系统数据网络中日益突显,但由于电力数据网络的特点和技术上的多样性,目前缺乏统一的QoS部署策略和规划建议。从电力系统不同数据业务流的QoS需求出发,提出了基于服务分类的应用层端到端QoS体系。首先给出了电力数据业务在应用层的QoS分类原则与方案,然后分别将其映射到网络层QoS体系和数据链路层QoS体系。针对不同级别的电力数据网——骨干网、城域网和局域网的QoS部署,重点研究了不同QoS技术的互操作问题,包括DiffServ和MPLS体系,DiffServ与IEEE802.1p体系,给出了可行的跨不同网络域的端到端QoS的解决方案。

Based on the analysis of service quality reqirements of different power data traffics, a class-oriented application layer end to end architecture is suggested. The classification principles and approch are presented. They are mapped into the service quality models of network layer and datalink layer. According to different level power data networks, including private wide area backbones, MANs and LANs, issues related to heterogegous service quality models and their mutual operations are disscussed, including DiflServ and MPLS, DiflServ and IEEE 802.1p. The solusions to end to service quality across different netwok domes are proposed.