What is the front-end processor

The concept of front-end processor is generally used by banks, brokers, and telecom operators. There are many background core processing systems in these places, which provide various interface services to the outside world. If I have a certain business interface that needs to deal with their back-end systems, and access their back-end systems from our external network, these units are absolutely not allowed. At this time, they ask you or themselves to develop a software that runs on their internal network, and then connect the computer running this software to your external network system through a dedicated line or hardware isolation technology. Then the computer running this software will start from Functionally called the front-end processor.
Front-end processor function:
From the perspective of network and security, it has the function of isolating the host (an application that is placed outside the internal network and separates the internal network and the external network) to ensure that external applications cannot directly access core services, such as banks Class external interface (telecommunications agency charging, bank-securities). From a business perspective, the front-end computer provides a bridge between business channels and the host of core services. It generally plays the role of managing and scheduling transactions initiated by business channels. The call of the front-end processor can reduce the burden of the core back-end server. Of course, it also has non-core business processing functions. The independent processor system located between the server and client of the application system is responsible for data format conversion, connection management, business flow management, peripheral scheduling, peripheral processing, and handing business data to the background application service system for processing. In the C/S concept, C and S are relative terms. Although most of them are fixed, they are also subject to designation. For example, in banking business applications, the request cannot be sent from the back-end application server. Taking the example of proxy charging, the front-end processor is an application gateway. In fact, in current applications, the host becomes invisible due to the presence of the front-end processor. The business systems at both ends of the government's internal and external networks require data exchange, and front-end computers are arranged in front of their respective business systems to realize data exchange. The front-end computer is a physical machine, and the front-end switching system is deployed. Responsible for buffering the data that needs to be exchanged or exchanged to this server.