Network management system

OMC network management system is a remote network
element management system. It mainly provides
maintenance of access network elements and OMC's own
system. It also provides network topology, device
management, user management, alarm management,
performance management, quality monitoring task
management, and logs. , System management and
other functions.

Description
Usage Scenario

System composition

OMC (Operations & Maintenance Center) can be used as the equipment monitoring center and data management center. In order to reduce the complexity of operations, the OMC system can use the Web client to log in to centrally manage, remotely operate and upgrade the access network elements. Multiple network elements can be managed through the OMC client, which is convenient for the administrator to manage and maintain the access network elements.

The OMC network management system includes the user interface, Server, Database and network elements. The relationship of each part is shown in the figure:

User Interface
The user interface can be called an administrator client, and basically does not maintain dynamic network management data. These data are extracted from the database when the user uses the software.

Server
Server sends instructions to the corresponding network element, receives various notifications sent by the network element, and saves all network management data, such as system management, alarm management, etc., in the database.

Database
The database mainly completes the information query of the interface and management function modules, and stores and processes the information. Such as alarm log, system configuration, etc.

Network element
The network element is the target of management, receives the commands sent by the server, and sends notifications reflecting the daily target behavior to the corresponding server.

System Features

Strong management ability
The maximum number of network elements is controlled by the license. Different network scales can be divided into management methods and multiple network element management subsystems can be configured.

Various management forms
The network element management subsystem can provide remote network management in multiple networking forms such as primary and secondary network management, and can use other transmission equipment to manage equipment located in scattered areas, which facilitates the realization of a multi-network management system.
Strong flexibility
Distributed management system can be used to manage remote equipment flexibly. Server and Database can be installed on the same server, and multiple management terminal PCs can be connected, and administrators can be set according to management scale and authority. Safe management mechanism

The OMC network management system adopts a secure management mechanism to operate the network element management subsystem through the client, remotely issue operation instructions to the network element, and set the user's operating authority and management scope on the management client according to the actual situation.
Convenient upgrade plan
The software of the OMC network management system can be changed through patch upgrades and uninstalls, which facilitates system maintenance and upgrades, does not affect normal operations, and ensures the reliability of the system.

OMC system structure diagram:

System structure characteristics:
It adopts mature and widely used B/S structure, adopts multi-process, modularized system structure and object-oriented design, and supports distributed system management.
It adopts centralized message forwarding technology and supports system information interaction of various business functions through a unified information management center.
Provide component management programs for each device and each function, and you can also select the corresponding components according to different needs. It has good expandability, through the component management of the equipment, it is convenient to support the new equipment types and functions.

Networking scheme
The OMC deployment scheme can be divided into two forms: centralized deployment and distributed deployment

Centralized deployment
OMC recommends a centralized management method, which is conducive to the centralized distribution and management of permissions and the centralized storage and management of data.

Features:It can manage the access equipment on the public network and the private network access equipment under the NAT connection. The OMC dedicated client can be flexibly placed in a convenient location for management, and can be accessed remotely via a Web page using a personal PC.
The network management system consists of a server and a client, and a set of servers manages all IPPBX/SIPGW equipment.
The client can manage the OMC by using the IE browser that comes with Windows, without the need to install client software, which is convenient and simple, rapid deployment, and provides a graphical user interface, which is easy for operators to understand and operate.

Centralized deployment diagram of network management system:

The network management system centrally manages all devices distributed in the managed network. In the centralized management mode, the network management system consists of a server and a client. There is only one server (OMC server) in the entire managed network, and there can be multiple sets of the client (Manager), and the client can be flexibly placed for convenience. The maintenance location can be managed, and it can also be accessed remotely via the Web from a personal PC.

Distributed deployment
Each independent local network deploys a set of OMC system, which is only responsible for the management of local network equipment. This deployment method is suitable for occasions where the network scale is large and local management and monitoring equipment are required.

Network management system distributed deployment diagram:

Distributed deployment realizes management distribution and has the following characteristics:
One OMC equipment failure will not affect equipment in other cities.
Distributed deployment requires a large investment and a long construction period. OMC servers must be deployed in cities regardless of the number of equipment.
Maintenance is inconvenient, and upgrade and maintenance need to cooperate with each prefecture and city branch.
A lot of resources are required, and each OMC device must be connected with the provincial network management, which consumes a lot of resources on the provincial network management.

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