Abstract:
A network manager system comprises one or more network controllers in a communications network. The network management system comprises an application level (600) which represents the functionality of a plurality of different composites being hardware and/or software components of different proprietary manufacture and different function capability, and an implementation level (601) which implements control of the composites. The application level is sub-divided into a plurality of application level elements (managed objects) each of which correspond to a function capability of a composite or system, a system being a highest level of composite. The implementation level is sub-divided into a plurality of implementation level elements (managed objects) each of which represents a system, a composite or a component. The intemal structure of the elements within the application level and implementation level corresponds to intemal architectures of the systems and composites. As a communications network is assembled from a plurality of different components and composites, the network management system can also be assembled using predetermined constructions of composite controllers and component controllers which correspond to specific composites or specific components within those composites, in accordance with an object model. Reconfigurations of a network or system may be made by making modifications to the object model, through use of a component library of pre-written managed objects representing black box and white box views of systems and components. Addition, removals, or reconfigurations of physical and logical resources which result in changes to the network may be managed by a reconfigured management information base comprising reconfigured application level elements and/or implementation level elements (managed objects) which have been reconfigured using the in situ design tool.
Abstract:
A management base of a communications network manager is constructed using object oriented techniques. A network comprises a plurality of physical resources in the form of components and assemblies of components, which are distributed across the network. A management system for the network is constructed in an evolutionary manner by representing an overall functionality of the network by an application model (1402) in which each function of the network is modeled independently of its implementation, decomposing the application model into an implementation model (1404) in which every function represented in the application model is represented in the implementation model, representing the application model as a plurality of objects (1408), representing the implementation model as another plurality of objects (1411), connecting the objects of the application model and implementation model together to obtain a combined object model, and constructing a management base according to the combined object model.
Abstract:
There is presented a method for integrating management functionality in communications networks by virtue of a design model for constructing a management information base in a communications network management system. A unit of manageable physical resources is represented in the management information base by a management unit. The management unit comprises a collection of managed objects representing actual physical and logical resources in the communications network, the managed objects arranged such that functionality provided by the physical and logical resources is represented separately and independently from the actual physical and logical resources themselves, in the particular way in which those resources are implemented. A unit of manageable functionality and resources is represented in the management information base by a management unit. A management unit comprises an Application Model, which represents functionality of those resources, and an Implementation Model, which represents the actual specific implementation of how that functionality is carried out. The Application Model and Implementation Model are related to each other by a set of associations, presented in the disclosure, termed "realisation associations". A collection of realisation associations which link an Application Model to an implementation form a realisation model. Division and representation of physical and logical resources in the management information base by the management unit method may enable substitution of physical and logical resources by different implementations of similar resource components without requiring reconfiguration of parts of the management information base which represent the functionality provided by those physical resources. Greater reuse of design and development effort may be achieved by configuring the management information base in the method disclosed, and easier maintenance and replaceability of physical and logical components may be achieved.
Abstract:
Constrained operation performance of exchanges (50) and switches (16, 216) of wireline communication systems (10) is mitigated and single entry point management of the system maintained through the provision of a distributed multi-service hub (MSH) sub-net (350) architecture in which individual MSHs (302-308) have hidden point codes (1001-1003). A signalling server (352) is able to translate an address of the MSH sub-net into a point code associated with an MSH entry point into the MSH sub-net, while dialled digit information pertaining to a service or party identifies a related MSH exit point from the MSH sub-net (350). A path can therefore be established, with the signalling server (352) further required to ensure that the hidden point code associated with the MSH exit point is translated back to the address of the MSH sub-net in onward routing of signalling messages to the dialled service or party. An intermediate element manager EM 2 (312) isolates a management server OSS (54) from element managers (314-322) associated with the control of individual MSHs (302-310), with the intermediate EM 2 (312) therefore providing a single address point to the OSS (54) while itself appearing as an OSS to the element managers (314-322) of individual MSHs (302-310). Signalling and management functions can therefore be consolidated at the intermediate EM 2 (312) to increase efficiency and reduce overhead.
Abstract:
A communications network, eg a distributed network, comprises a plurality of distributed physical resources in the form of components, assemblies of components (604), and systems based on components and composites. A network management system of such a network comprises an application level (600) which represents the functionality of a plurality of different composites being hardware and/or software components of different proprietary manufacture and different function capability, and an implementation level (601) which implements control of the composites. The application level is sub-divided into a plurality of application level elements each of which correspond to a function capability of a composite or system, a system being a highest level of composite. The implementation level is sub-divided into a plurality of implementation level elements each of which represents a system, a composite or a component. The internal structure of the elements within the application controller and implementation level corresponds to internal architectures of the systems and composites.
Abstract:
A number of narrow band networks are interconnected via a broad band network having a signaling protocol different from that or those of the narrow band networks. Calls between terminals associated with first and second narrow band networks are set up by the selection by a call server of a phantom trunk between the networks. This phantom trunk is used to relay the addresses of the two terminals to be connected. By recognising that two connection requests have been received at opposite ends of the same phantom trunk, a processor in the second network determines that a connection between the terminals via the broad band network is required. Selection of the phantom trunk and sending of address messages is effected via a selected one of a number of identical connection brokers coupled to the call server. The workload of the cal server is shared among the connection brokers coupled thereto.
Abstract:
A number of narrow band networks are interconnected via a broad band network having a signaling protocol different from that or those of the narrow band networks. Calls between terminals associated with first and second narrow band networks are set up by the selection by a call server of a phantom trunk between the networks. This phantom trunk is used to relay the addresses of the two terminals to be connected. By recognising that two connection requests have been received at opposite ends of the same phantom trunk, a processor in the second network determines that a connection between the terminals via the broad band network is required. Selection of the phantom trunk and sending of address messages is effected via a selected one of a number of identical connection brokers coupled to the call server. The workload of the cal server is shared among the connection brokers coupled thereto.