Technical basis of the access network: view the construction and development of the Internet

There are many areas worth learning about the access network technology. Here we mainly introduce the future direction of the construction and development of the Internet. The completion of the restructuring of domestic telecom operators indicates that major operators are beginning to enter the full-service operation era, and also means that the competition between them will become more intense. The rapid changes in customer business and bandwidth requirements pose new challenges to the operator's existing network.

In particular, the primary network access layer with the largest investment and the most complex applications is currently facing several major challenges: how to adapt to the rapid development of IP data services, how to adapt to the requirements of comprehensive business access and convergence, how to adapt to the requirements of providing differentiated services to customers, and how to ensure a higher network availability at a lower cost scalability. However, the traditional PDH, optical fiber transceiver, and Co-rotating access devices and networking solutions have the following problems: single technology, insufficient network adaptability, high O & M costs, and imperfect management functions, unable to adapt to new changes. Therefore, the construction and development of the Internet gateway puts forward new requirements for access layer equipment and solutions:

1. More flexible and rich business access methods to meet the needs of various customer segments;

2. It has higher scalability, adapts to the development trend of network IP from various aspects such as bandwidth, function, and reliability, and extends the validity period of equipment investment;

3. More Reliable Access Network Technologies can be established to provide users with high-quality communication services;

4. provides unified and effective network management to improve the level of network operation services and reduce operation costs;

5. Lower network construction costs and faster deployment capabilities.

Through thinking about the above issues, as the mainstream manufacturer of Access equipment, ruisida proposed the concept of building integrated Access network technology through Multi-Service Access Platform-that is, using MSAP (Multi-Service Access Platform) product Series and integrated network management platform to achieve four types of integration:

Business integration: In addition to meeting the access needs of user voice, video, industry applications, OA, Internet, and other businesses, it can also provide channels for the increasing 3G businesses, helps achieve rapid deployment of 3G networks;

Technology Convergence: MSAP provides PCM, PDH, SDH, Ethernet, DSL, CWDM, and other access technologies, provides N * 64 K, N * 2 M, 155 M/622 M, and FE/GE multi-level business processing capabilities, and provides users with comprehensive access means through different business modules, in this way, an elastic access network for all services is built to further achieve unified management of the ingress network access layer.

Network convergence: it also provides an IP processing platform for TDM Service Processing to adapt to the development trend of network IP, it is equivalent to providing two access networks, TDM and Ethernet/IP, on a unified access platform, to achieve convergence of access networks. The two access networks are independent of each other, and can switch services between networks based on application needs, fully ensuring high flexibility of the access network technology.

Management Integration: the integration of Network Element Management and major account Resource Management expands and enhances the scope and management capabilities of network management. The management based on network elements means that the NMS network management system can manage and control devices of different vendors to achieve integrated management of the access network technology, implements network fault analysis, fault locating, and comprehensive network performance analysis. Customer-based management refers to the customer-based management element. It provides the customer's circuit, equipment resources, customer information, alarm statistics, and other functions, and customizes Network Management Information for the customer, this provides operators with a more intuitive and efficient Key Account management tool. MSAP helps operators build low-cost, flexible, scalable, and easy-to-manage access networks through these four integrations.