基于OAM性能监测的ATM QoS管理

ATM QoS Management Based on OAM Performance Monitoring

监视网络性能参数的变化是实现 ATM网络 Qo S管理的一个关键 .但是 ITU - T定义的 OAM性能管理功能只简单地监视网络性能、产生报告信息 ,而不能对 Qo S的管理提供足够的支持 .本文为此在讨论 Qo S和网络性能参数的基础上 ,设计了一个 ATM网络的 Qo S管理模型 .其中 ,对 OAM性能管理功能进行了改进 ,一些满足 Qo S管理需求的 ATM网络性能监测功能在 OAM信元的保留字段中得以实现 .

Monitoring the change of network performance parameters is a key to realize the QoS management in ATM networks. The OAM performance management function defined by ITU T, however, simply monitors network performance and reports performance information. It can not give QoS management an enough support. In terms of the relationship between QoS and network performance parameter, an ATM layered QoS management model is proposed and defined. In this model, an improvement in OAM performance management functions is also made. Some new functions, which are necessary to QoS management, are implemented by defining new function fields in reserved field of OAM cell.