Integration of ATM and DDN

After the completion of the ATM network, how to extend the ATM network, expand potential user needs, and increase the return on investment has become a common problem for operators in various regions. The integration of ATM and DDN effectively solves this problem.

With the development of information technology, the demand for data leased line services is increasing, and bandwidth requirements are also increasing. Taking financial industry users as an example, the originally rented DDN line can only provide 64 K or K speed to connect to the network. Now the business volume and business type of the network are increasing, and 2 m to the network is an inevitable trend. To meet user needs, domestic operators have accelerated the construction of the ATM network in the past two years because the ATM network has high-speed data exchange capabilities.

However, the operator found that after the completion of the ATM network, the business volume did not achieve the expected results, making investment recovery very difficult. How to extend the ATM network, expand potential user needs, and increase the return on investment has become a common problem for operators in various regions.

Leverage the advantages of ATM

To solve this problem, the operator of Zhejiang, Shanxi, Hebei and other places adopted the FR-ATM business interconnection, not only realized the user's 2 m access demand, but also integrated the advantages of DDN and ATM network. In the new data leased line business construction plan, the main requirements of operators include:

The new network can extend the ATM network to meet the needs of FR and ATM network intercommunication and business intercommunication, and achieve the purpose of integrating DDN and ATM network resources.

The new data leased line service provides higher transmission and exchange capabilities to meet users' high-speed access needs. Multiple Access methods are provided to provide users with flexible and diverse options. The new data leased line service has low investment, stable operation, and convenient management after completion.

According to the new comprehensive access network construction model of operators in various regions, mappers launched the latest MP 9710 multi-service access platform MSAP ). The primary goal of the new MP 9710 MSAP is to extend the ATM network so that operators can provide flexible and diverse data leased line services at a low cost, achieve the goal of rapid investment recovery and continuous profitability of the network.

Connection between leased lines and ATM services

Financial users account for the largest proportion of leased line business profits. Achieving 2 m to outlets is an important demand for industry users, especially financial systems. However, due to large investment, ATM networks cannot be extended to every township. Therefore, mappers designed a Networking Solution for financial users.

This solution relies on the SDH network of the operator to build a star network and uses the MP 9710 network. It also solves the issue of FR Access and ATM convergence. First, the Aggregation Router of the secondary branch center accesses MP 155 through a 9710 m atm interface, and the dot router accesses the pivot point MP 9710 through the PDH Optical terminal or G. HDSL. Through MP9710, the entire solution supports connecting network routers with FR, and connecting the central router with ATM, thus realizing the communication between FR and ATM services.

The MP 9710 adopted in the solution is a powerful, wide, and narrow-band multi-service access device developed and manufactured by mappers, its biggest innovation lies in its seamless integration of the DDN Network and the ATM network at the price of the DDN device, and its compatibility with the existing access network system. MP 9710 provides powerful exchange and convergence processing capabilities, supports various media such as copper cables and optical fiber cables, as well as user access at multiple rates, and implements comprehensive network management for all devices, including the user end.

Integrate resources to improve efficiency

The scheme designed by maipu takes into account the construction of ATM networks in various counties and cities. It not only makes full use of the convenient access advantages of DDN, but also mines the value of the already built ATM network, it provides a flexible and economical solution for financial system outlets to increase to 2 m. For industry users and operators, these new data leased line business solutions all mean lower investment, higher returns, and stronger business competitiveness.

In general, the above solutions have the following advantages:

Integrate DDN with ATM resources. Traditional DDN networks have wide coverage and flexible access, but they cannot meet the needs of high-bandwidth FR businesses in terms of switching capabilities; although the ATM network features good transmission quality and high line utilization, it has poor user access capabilities. The above solution solves both FR Access and ATM convergence issues, effectively integrates the traditional DDN network and ATM network resources, and can help operators provide better data leased line services with lower investment.

The powerful exchange and exchange processing capabilities play a decisive role in the network performance for High-load data leased line services. In this solution, the MP 9710 MSAP adopts the dual-bus structure of TDM and broadband bus. The internal TDM bus reaches 256 M and can provide 96 E1 ports for Multiplexing transmission, the circuit switching capability can realize the non-blocking full switching of 4096x4096 time slots. The Frame Relay switching capability is as high as 50000 packets/second, and the maximum number of ATM circuit simulation is 2048. This powerful exchange and convergence capability ensures that operators can continuously provide high-speed data leased line services after integrating resources.

It supports user access modes with multiple rates and media. Because it supports ATM, SDH, PDH, and FR modes, carriers can provide transmission rates ranging from 64 K to N × 2 m according to user requirements. Moreover, MP 9710 supports copper cables, optical fiber cables, and other media. The operator provides users with flexible and diverse access methods, solving the last mile access problem.

To increase the ROI, first, use MP 9710 to replace the original expensive ATM switch. operators and users can save a lot of investment. MP 9710 uses a m TDM bus and a 32g ip bus, and all the ATM exchanges are completed in the ATM uplink cards. Compared with mainstream ATM switches in the market, it has the advantages of ATM functions and DDN price. Secondly, MP 9710 uses a built-in PDH card to achieve compatibility between copper cables and optical fiber access, which saves users a large investment of 2 m ports and Optical terminals. In addition, the scheme integrates the originally separated DDN and ATM resources, greatly improving the utilization of the original resources.

The comprehensive network management function MP 9710 provides powerful network management functions. It adopts the in-band/out-of-band network management mode to provide centralized or distributed management. The platform is highly compatible with the operator's access network system and can be integrated into a third-party Network Management System for unified management. With this device, the network management of operators and users can be simpler and easier.

FR and ATM service interconnection scheme Topology