NMS-EMS以太网管理信息模型及其应用

提出了一个位于网络管理系统和网元管理系统之间（NMS-EMS）的以太网管理信息模型. 该信息模型综合了网络视点和网元视点. 网络视点的信息模型体现了对以太网层网络的划分和基于虚拟局域网(VLAN，virtual local area network)技术的层网络的分割. 网元视点的信息模型主要对网桥功能实体进行建模，并将上述以太网管理信息模型运用到以太无源光网络（EPON，Ethernet passive optical networks）的管理中. 在EPON管理应用中提出了2种视点信息间的联系机制，并举例分析了信息模型对管理功能的支持. 经过实验原型系统验证，提出的信息模型能支持和满足EPON网络管理需求，且该管理信息模型被采纳为ITU-T标准Q.838.1.

NMS-EMS Ethernet Management Information Model and Its Application

A network and network element combined view information model of Ethernet at interface between NMS (network management system) and EMS (element management system) is defined. The structure layer of Ethernet and the partitioning of Ethernet layer network based on VLAN (virtual local area network) are discussed with defining network view information model. The modeling of bridge functional entities is involved in the network element view information model. This model is applied in EPON(Ethernet passive optical networks) network management. In this application, the association mechanism between network view and network element view information is proposed. Besides, an interaction scenario of bandwidth assignment based on the information model is analyzed. The information model proposed here has been verified by a prototype management system. And the information model has also been accepted as ITU-T Recommendation Q.838.1.