What is the management function of TMN TMN TMN functional architecture TMN application range TMN technology base TMN's information architecture TMN management service TMN standardization protocol TMN interface
The goal of telecommunication network management is to maximize telecom network resources, improve network operation quality and efficiency, provide users with good communication services. The Telecom Management Network (TMN) is the implementation of the implementation of the telecommunications network management target, which simplifies the management model of telecom operation enterprises in multi-manufacturers, and reduces the management cost of telecom operations, thus Enterprises get better benefits.
1. What is TMN International Telecommunications Union (ITU) in M. 3010 It is suggested that the basic concept of Telecom Management Network is to provide an organized network structure to obtain various types of operating system (OSS) between the operating system and the interconnection between the operating system and the telecommunications device. It is an architecture that uses agreed with standard protocols and information. The purpose of the TMN architecture is to support the planning, configuration, installation, operation and organization of telecommunications networks and telecom services. The overall relationship between TMN and telecommunications network is shown in Figure 1-1. The operating system (OS) of the figure represents a processing system that implements various management functions, and the workstation represents the device of the human-machine interface, the data communication network provides the management system and the data communication capabilities between the managed network elements. Returns 2. TMN application range TMN application field is very wide, involving many aspects of telecommunications network and telecom business management, predicting network planning from business; from telecommunications engineering, system installation to operation maintenance, network organization; from business control and quality assurance The management of telecommunications companies is its application range. Below is a TMN management comparison typical telecommunications device example: 1) Public networks and private networks (including ISDN, mobile network, special voice network, virtual private network, smart network). 2) TMN itself 3) Transmission terminal (multiplexer, cross connection, channel frequency conversion device, ADM, etc.). 4) Digital and analog transmission systems (cable, fiber, wireless, satellite, etc.). 5) Restore the system. 6) Digital and analog switches. 7) Computer host, front-end processor, cluster controller, file server. 8) Circuit exchange and packet exchange. 9) Signaling terminal and system (SP, STP, real-time database). 10) Carry the business and telecommunications business. 11) PBXS, PBX Access, and User Terminals. 12) ISDN User Terminal. 13) Related support systems (such as digital synchronous networks). Returns 3. TMN's management business TMN is a network, which also provides its own network business, with your own users. Its business is the management of TMN, which is the management activities of the telecommunications network from the user's perspective. The TMN management business can basically summarize three categories: ★ Communication network daily business and network operation management services. ★ Network maintenance management services such as test and fault processing. ★ Network control services such as online control and abnormal business processing. TMN's users can be a telecom operation company, and the management organization department of telecom operations, can also be a customer service from telecommunications services. Returns 4. TMN's management function TMN's various management functions support TMN's implementation of management services to meet the needs of the operation, maintenance, and management of the managed network. Managers interact through human-computer interface and management apps, and manage the management operations through the management function provided by TMN. The relationship between management functions, management services, managers and management networks are shown in Figure 1-2. TMN provides a series of management functions for the telecommunications network and telecommunications services, mainly divided into the following five management functional domains: Performance Management performance management is an evaluation of the performance of telecommunications devices and the validity of network units, and proposes evaluation A set of functions reported. Includes performance test, performance analysis and performance control. Configuration Management Configuration Management features include state and control and installation functions. Manage the configuration of the network unit, input, open / stop business, etc. to manage the status of the network.
Accounting Management Features Test the usage of various services in the telecommunications network, calculates the cost of using the telecom service, and supports the charging process of the telecom service. Fault Management Fault Management Function is to manage the operation of the telecommunications network and management of the device installation environment, and manage the status of the network. Safety Management Security Management mainly provides the ability to secure security for networks and network devices. Mainly include management, safety review and safety alarm processing of access and user privileges. The function of TMN can be divided into different hierarchies: the transaction management transaction management is the highest management function layer. This layer is responsible for setting the target task, but regardless of the implementation of the specific objectives, the intervention of managers is often required. Service Management Service Management mainly handles network-provided services, such as providing interfaces between users and network operators, interaction with transaction management and network management, etc., network management network management is within the jurisdiction All NEs are managed, and the main features include: coordination with all networks in the entire network; providing, modifying, or terminating network services; interacting with network performance, availability and other matters. The unit management unit management directly exercises the management functions of individual network elements, the main functions include: control and coordination a series of network units; providing coordination functions for communication with network cells; maintaining statistics related to network units; Equal data. Returns 5. TMN technology Basis Support TMN's main technique is: L OSI Open System Interconnect Technology L OSI System Management Technology L High Speed Development Computer Network Technology and Distributed Processing Environment L Object-Oriented Software Engineering Method L High Speed Data Communication Technology l Telecommunication equipment High Intelligence Returns 6. The most important standard of TMN's standardization protocol TMN is ITU-T M.3010, which is about TMN's overall requirements, involving overall principles, architecture, logical hierarchical structure and Basic functional requirements. The M.3400 is a standard for the management function of TMN. The M.3200 Series is about TMN management services and TMN management business standards on various telecommunications websites. The M.3020 is a TMN interface specification definition method. M.60.2 is the basic term definition of TMN. The M.3100 series is the general management information model of TMN.
TMN Overall Summary and Terminology: M. Overview of TMN Recommendations M. 60 TMN TETENCE TERMINOLOGY AND DEFINitions TMN Method: x. 720 Management Information Model (Management Information Model) 722 Tube Object Definition Guide (Guidelines for The Specification Methodology) X. TMN Interface Specification Methodology (TMN Arface Specification Methodology) TMN Architecture: M. 310 TMN's overall principles (Principles of A TMN) X. 701 System Management Overall Requirements (System Management Overview) G. 784 SDH Management (SDH) "Q. 513 Digital Switch Operation, Management and Maintenance Interface Q. 750 NO.
7 Signaling System Management Summary M. 3610 TMN requirements M. 3611 TMN requirements for ATM TMN management business requirements: M. 3200 TMN management business summary M. 3201 Business Management M. 3202 Public Channel Signaling Management M. 3203 User Control Service Management M. 3204 ISDN Management M. 3205 B-ISDN Management M. 32IN Intelligent Network Management M. 3300 F interface management capability X. 161 public data network customer network management business M. Management Service TMN Management Functions on XFUNC X Interfaces: M. 3400 TMN Management Function TMN Application Function X. 730 object management function X. 731 Status Management Function X. 732 The attribute X used to expire the relationship. 733 Alarm Report Function X. 734 Event Report Management Function X. 735 log control function X. 736 Security Alarm Report Function X. 737 Trust and Diagnostic Test Class Function X. 738 Measurement and summary function x. 739 Workload monitoring function x. 740 Safety Check Tracking Function X. 745 Test Management Function X. 741 Objects and attributes for access control TMN Universal Messages and Information Models: x. 710 Public Management Information Service Definition X. 711 Public Management Information Protocol Specifications Q. 821 Q3 Alarm Monitor Model Q. Performance Management Model Q on 822 Q3 Q. 823 Exchange traffic management Q. 824 Support for information model M. 3180 TMN management information classification M. XINFO Information Model TMN's Resource Information Model for Different Access is exchanged via X interface. 3100 Universal Network Information Model G. 744 SDH Information Model G. 774.01 SDH NE Performance Monitoring Information Model G. 774.02 SDH NE Net Load Structure Configuration G. 774.03 SDH NE Demographic Protection Management G. 774.04 SDH NE Subnet Connection Protection Management G. 774.05 NE connection supervision function Q. 751.1 NO.7 MTP Information Model Q. 751.2 No.7 SCCP Information Model Q. 811 Q3 Low Lower Layer 3 Layer Q. 812 Q3 interface on the three-layer protocol G. 773 AGRIC G. QX TMN consistency requirements within 784 SDH: x. 724 Protocol Consistency Declaration M. 3101 M. 3100 Managing object consistency declarations Returns 7. The functional architecture of TMN In the functional architecture of TMN, a set of standard blocks (Function block) and reference points that may occur. TMN function model Including the function (OSF) of the operating system, various intermediary functions (MF), adapter function (OAF). In addition, TMN is also connected to each network unit function (NEF) and various workstations (WSF)
As shown in Figure 1. Some functional parts belong to the TMN category, and some are in TMN. The reference point in the functional architecture refers to the concept point of the two non-overlapping function connectivity, and it is recognized by it The type of information interacting between these functions. In TMN, in order to describe the relationship between the functions, reference points q, f, x, and the reference point associated with the external TMN is G, m. q The reference point is between OSF and OSF, between OSF and MF, between OSF and NEF, between MF and MF. The F reference point is between OSF and WSF, between WSF and MF. The x reference point is between OSF and other TMN's OSF. The M reference point is between non-TMN standard network elements (or OSF) and QAF. The G reference point is between WSF and the user. The TMN management hierarchical model and the function block L. L OSF function block processing information related to telecom management, support and controlling the implementation of telecom management functions. Corresponding to the management of TMN can be divided into industry management OSF, service management OSF, network management OSF, and basic OSF. l Medical MF, transmitted information between OSF and NEF (or QAF) to ensure the demand of information patterns and make the network element (NE) to OSF more flexible. l Data communication function DCF, providing a method of data communication between each function block. Provide features of the first to third layers in the OSI reference model. l NE function block NEF, in the NE, network element describes the communication function to the TMN in order to be managed, which is part of the NEF, which belongs to TMN, and other functions of NEF are outside TMN. l Adapter Function (WSF) provides interaction between TMN and users, and the person-machine interface belongs to TMN. Returns 8. The information architecture of TMN The information architecture of TMN applies OSI system management principles, introduces the concept of managers and agent (Manager / Agent), emphasizing in the information exchange-oriented exchange-oriented information exchange. Object-oriented technology. It mainly includes two aspects of management information model and management information exchange. The management information model is an abstract representation of network resources and its supported management activities. In the information model, the network resource is abstract to managed objects. The model determines the range of information exchange in standard mode, the activity in the model implements various management operations of TMN, such as information storage, extraction and processing. Managing information exchange involves TMN data communication function DCF, messaging function MCF, mainly interface specifications and protocol stacks. Telecom management is a process of information processing, each particular management application, according to ITU-T X. 701 Recommendation of the definition in System Management Model, both of the administrators, agents. In front of the manager / agent, network resources are information trees (INFORTION TREE), which is managed objective information library (MIB: Management Information Base). Agent (Agent) Direct operation is managed by the management resource, and manager implemented manipulation through CMISE (CommON Management Information Service). The relationship between the manager, the agent and the managed object is shown in Figure 3.
From the point of view of TMN, this relationship is as shown in Figure 4, specifically note is the Q interface on the Q reference point in the figure, which is not only selected to select the appropriate protocol stack by the OSI 7 layer model, but also determine the corresponding management information. model. Figure 3 Managers, agents, and objects Returns 9. The interface of TMN In the TMN architecture we can see that there are four interfaces in TMN, ie QX, Q3, X, and F. l Q3 Interface The current standardization is mainly concentrated on the Q3 interface. Q3 interface is very different from us, such as an RS232 interface, etc., is a single communication interface, and the Q3 interface is a collection, and it is spanned. A collection of protocols for the entire OSIQ seven layer model. The Q3 interface protocol standard from the first layer to the third layer is Q. 811, called a low-level protocol stack. The Q3 interface protocol standard from the fourth layer to the seventh layer is Q. 812, called high-level agreement. Q. 811 / Q. 812 is suitable for any Q3 interface. Q. The top two protocols in 812 are CMIP and FTAM, for the former for management applications for things processing, the latter for file transfer, access and management of file transfer. It is also particularly pointed out here that the Q3 interface includes not only the management information and management information model (MIB) used in the seventh floor, but also in communication protocol Q. On 811/812, there must be G. 774 and M. 3100. M. 3100 is a universal information model for network elements. G. 774 is the management information model of SDH. Q. 821, Q. 822 is a support object definition for the alarm and performance management in the Q3 interface. The Q3 interface is a collection. l QX Interface In the implementation of the management system, many products use QX interface as a transition to Q3 interfaces. We know the Q3 interface connection OS and OS, OS and MD, OS and QA. QX is an imperfect Q3 interface, QX is very like Q3, but the function is imperfect, it is in cost and efficiency considerations, it takes some parts of Q3, but Q3 can be removed and there is no standard, so often It is a Q interface of the non-standard manufacturer. The difference between QX and Q3 is: 1. Different reference points, QX at QX reference points, representing interaction between intermediary functions and management functions; The information carried is different. The information model on QX is shared between MD and NE, and the information model on Q3 is shared between OS and other TMN entities. The L F interface F interface is in the workstation (WS) and between the physical components having OSF, MF functions (such as WS and MD). It presents TMN's management function to people, or transfers people's intervention to the management system, solves the support capabilities of human-machine interface related to TMN's five management functions, and uses the HKM Management Network (TMN) Access to the telecommunications management system. Man-Machine Interface (HMI) exchange information between users and systems. The interaction of the user and the control system is based on input / output, special actions, and human-machine dialog processing and other interactive mechanisms. The L X interface X interface is implemented at the X reference point of TMN. Provides connections between TMN and TMN or TMN and other management networks having a TMN interface. In this case, relative to the Q interface, the X interface requires stronger security management capabilities, and sets more restrictions on the TMN external entity. In order to introduce security levels, it is necessary to attach an additional agreement, but the X interface application layer protocol is consistent with Q3. How to divide multiple TMN? The definition of the divided TMN boundary is not explicitly given in the standard. But we believe that the interconnection of the telecommunications management network of multiple telecom operations companies is the interconnection between multiple TMNs. In the same telecom operation company, it can also be divided according to different management issues.
