This Recommendation addresses management aspects of the Synchronous Digital Hierarchy (SDH) Network Element containing transport functions of one or more of the layer networks of the SDH transport network. The management of the SDH layer networks is separable from that of its client layer networks so that the same means of management can be used regardless of the client. The management functions for fault management, configuration management, account management, performance management, and security management are to be specified. This Recommendation describes the management network organizational model for communication between an element management layer (EML) Operations System and the SDH equipment management function within an SDH network element. The architecture described in this Recommendation for the management of SDH transport networks is based upon the following considerations: − SDH layer network entities (SLNE) refer to trail termination, adaptation and connection functions as described in [ITU-T G.803], − a network element may only contain SDH layer network entities, − a network element may contain both SDH layer network entities (SLNE) and client layer network entities (CLNE), − client layer entities are managed as part of their own logical domain (e.g. PDH management network), − CLNE and SLNE may or may not share common message communications function (MCF) and management application function (MAF) depending on application,− CLNE and OLNE may or may not share same agent. The SDH management subnetwork (SMS) architecture, SDH embedded control channel (ECC) functions, and SDH ECC protocols are specified. Detailed message sets are for further study. The management of SDH equipment should be seen as a subset of the telecommunications management network (TMN) described in Recommendation [ITU-T M.3000], and reference is made to Recommendations [ITU-T Q.811] and [ITU-T Q.812] for the specification of protocol suites to be used at external (Q) management interfaces. This Recommendation specifies for fault management, performance monitoring, and configuration management a library of basic equipment management function (EMF) building blocks and a set of rules by which they are combined in order to describe a digital transmission equipment's EMF functionality. The library defined in this Recommendation forms part of the set of libraries defined furthermore in Recommendation [ITU-T G.783]. Not every function defined in this Recommendation is required for every application. Different subsets of functions may be assembled in different ways to provide a variety of different capabilities. Network operators and equipment suppliers may choose which functions must be implemented for each application.
ITU-T G.784-2008由国际电信联盟 IX-ITU 发布于 2008-03-01。
ITU-T G.784-2008 在中国标准分类中归属于: M10 通信网综合。
* 在 ITU-T G.784-2008 发布之后有更新,请注意新发布标准的变化。
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