The iManager U inherits all the functions of the original T, N BMS, and DMS systems, and manages Huawei transport, IP, and access equipment. OBN iManager N BMS Introduction ISSUE CJH, CJH, iManager N BMS Advanced Operation and CJL, CJL, iManager N BMS Operation Training (MSAN),

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Product Name Version iManager U VRC00 Intended Audience The iManager U Product Description describes the position, functional characteristics, system architecture and networking mode of the U, appended with standards that the U complies with, and performance indexes. This document provides guides for getting the features and functions of the U This document is intended for: Symbol Description Indicates a hazard with a high level of risk, which if not avoided, will result in death or serious injury.

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For example, click OK. Therefore, the latest document issue contains all updates made in previous issues. Changes in Issue 03 The second commercial release has the following updates: The Management capabilities of the U on different hardware platforms table is updated. Changes in Issue 02 The initial commercial release has the following changes: Management Capability Descriptions of management capability are updated. Changes in Issue 01 Initial field trial release.

A-1 B Acronyms and Abbreviations Therefore, the U helps to construct a customer-centered and future-oriented network management system of a new generation.


The broadband services and mobile services have become the mainstream services in telecommunications networks. All-IP architecture and fixed-mobile convergence FMC are the network development goals for the next three to five years, during which the market orientations and business modes of telecom carriers will vary accordingly. The development of all-IP architecture is the leading factor in the transition from the existing vertical network that is divided by technology and service to the flattened horizontal network.

Network convergence requires network management to be consolidated. To be oriented to the future network trend, the iManager U that is the integrated network management system NMS combines all-IP and FMC, and manages carrier equipment and access equipment in a centralized manner. The U can perform not only integrated management of multi-domain equipment but also integrated management at the network element NE and network layers.

The U has revolutionized the layer-based management mode to meet the management requirements in the transition from the existing vertical network to the flattened horizontal network. The U is based on the design of distributed software architecture, and supports the new generation advanced telecom computing architecture ATCA hardware platform. In addition, the super network management capability and modular software architecture of the U that shapes the development trend in the future network management make the U a leading all-IP and FMC management solution.

The U is an integrated management platform for all equipment in the Huawei. It can manage transport equipment, access equipment, and IP equipment including routers, security equipment, and Metro Ethernet equipment in a centralized manner. The U is designed as the management system for Huawei equipment.

With powerful management functions at the NE and network layers, the U is the major and future-oriented network management product and solution lmanager Huawei.

In the TMN hierarchy, the U is located between the element management layer and network management layer, and supports all functions of the NE and network layers.

Figure shows the network position of the U Centralized Network Management The U can manage transport equipment, access equipment, and IP equipment in a centralized manner. Figure shows the equipment that the U manages. The main characteristics of the U are as follows: For details, see 1. Hence, multiple operating systems are compatible. It provides high-end solutions to large-scale networks and low-cost solutions to small and medium-scale networks.

Modular Architecture The U uses a modular design to increase system flexibility. Hence, the degree of coupling of NE management components decreases. In addition, different application processes are integrated into the system by means of registry files.

In this way, the U has flexible expansion capabilities. The equipment that the U VRC00 can manage is listed as follows: In addition, the U provides standard external interfaces to integrate with the operation support system OSSto meet the management requirements of large-scale transport networks.

The U server communicates with its managed devices in inband or outband networking mode. Depends on the sizes of managed networks, the U supports the centralized and distributed deployment modes of servers.

iManager N2000 BMS

To ensure n20000 high availability of the system, the U supports the HA system Veritas hot standby. The HA system Veritas hot standby can also be configured in the distributed mode. The U system contains management components for manageable equipment.


The components support multiple instances in the distributed mode. Slave servers can share the CPU usage and memory usage of the master server. In this manner, the load is balanced. The U supports a networking scheme of a single server and multiple clients. In the centralized imanxger mode of the single-server system, there is only one U server on which all management components are installed and all processes run.

Figure Single-server imanaged This type of networking is applicable to medium and small-scale networks. The U supports a networking scheme of multiple servers and clients, as shown in Figure Distributed system consists of the master server and slave server, which compose a site to perform the U server function.

The master server is the core of a distributed system. The database server and the core subsystems of the U are running on the master server. The non-core subsystems of the U such as the management components for manageable equipment are running on the slave server. In this way, the CPU usage and the memory usage of the master server are lowered, the load is balanced between the master and slave servers and the management capability of the U is increased.

In the distributed deployment mode, you can deploy all servers in only the same LAN. The data in different locations is backed up through a network. When a fault occurs in the primary site, the system switches to the secondary site so that network monitoring continues. Figure shows the networking diagram. Figure Centralized deployment of an HA system 2.

The h2000 and secondary sites comprise an HA system. In the primary or secondary site, master and slave servers are deployed in a distributed mode. The slave servers can share the CPU usage and memory usage of the master server. In this manner, the load is balanced between the master and slave servers.

The messages sent from the U are transmitted through the service channels of the managed devices. In normal cases, the management interface on the main processing unit or routing switch unit of the managed device are used as the access interface.

Figure shows the inband networking diagram. The U needs to be connected to only the nearby NE on the managed network. After configuring the related routes, you can manage all the devices on the network. The way of connecting the U with the managed network depends on the distance between the U and its nearby NE. If the U and its nearby IP devices are far from each other, you can use the private line mode.

The private line mode is similar to the outband networking mode. This networking mode is flexible and cost-effective. It does not need extra devices. In the case of network failure, the communication channel between the U and its managed network is interrupted. As a result, the U cannot maintain the managed network. In this mode, the U can be connected to the managed devices in multiple ways.