Multi-service integration dual-redundancy network system

Abstract

The invention provides a multi-service integration dual-redundancy network system which is formed by connecting a network core layer, a network access layer and a network user layer through the Ethernet. The network core layer comprises a plurality of pairs of core layer exchangers. The network access layer comprises four types of access layer exchangers which are divided according to the service type, each type of access layer exchangers are configured pairwise and then are connected with one pair of core layer exchangers respectively, and four types of network service interfaces are provided. The network user layer is in pairwise dual-redundancy connection with corresponding access layer exchangers according to the service type. The multi-service integration dual-redundancy network system generalizes all network exchange transmissions into four types of network services, achieves the multi-service integration integrating design of many systems, and sets network nodes according to services; and reduces mutual influence of the services, can manage the services respectively easily, determines related network characteristics according to the transmission characteristic of each service, adopts the service differentiation strategy, meets integrated network information loading requirements, and achieves the purpose that service communication performance is preferential.

Description

technical field [0001] The invention belongs to the technical field of network communication, and in particular relates to a multi-service integrated double-redundant network system. Background technique [0002] With the rapid development of science and technology, modern industrial networks have higher and higher requirements for the reliability and effectiveness of network equipment. At present, network applications generally adopt single network connection methods such as bus structure or star structure. Most of the network devices are located in the same computer room. These network systems are relatively simple, but have the following defects: (1) The network system bears a single point of failure and cannot resist catastrophic failures, such as power failure in the computer room, equipment paralysis, etc. (2) There is a single point of failure in network equipment and network links. Among them, the links / components of network failure include: switches or their ports,...

AI Technical Summary

Problems solved by technology

These network systems are relatively simple, but have the following defects: (1) The network system bears a single point of failure and cannot resist catastrophic failures, such as power failure in the computer room, equipment failure, etc.

This will adversely affect the reliability and real-time performance of the network, and with the increase in the number of communication nodes and network services in network applications, the failure rate of the network is correspondingly higher

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