E1 channel multidirectional network bridge transmission device and method

Abstract

The invention belongs to the technical field of narrow-band data transmission and exchange technologies, in particular to a device and a method for transmitting Ethernet data by utilizing an E1 channel. An E1 channel multidirectional network bridge transmission device comprises a 10M / 100M Ethernet interface (1), a PHY interface (2), an E1 interface, and a control circuit (3), an FPGA large exchange matrix chip (4), an SDRAM storage (5), an FPGA configuration chip (6) and a CPU (7). The function realized by the invention can overcome the defect that the prior art can not be applied to point to multipoint. Proved by actual tests, the conversion efficiency of the Ethernet data to E1, i.e. the utilization ratio of the E1 channel, reaches 90 percent. When two devices are used in a point to point mode, the prior art can be completely substituted; when a plurality of devices are used, E1 networking can be carried out to realize point-to-multipoint Ethernet data transmission, a local area network is formed between every two networked devices based on the E1 (2M) channel, and the Ethernet data can also be transmitted freely among all the devices; in addition, the Ethernet data can be transmitted cross nodes among the plurality of devices by utilizing the E1 interface.

Description

technical field [0001] The invention belongs to the technical field of narrowband data transmission and exchange, and in particular relates to a device and method for transparently transmitting Ethernet data by using an E1 channel. Background technique [0002] At present, the application of E1 (2M) channels to transmit various audio and data is becoming more and more widespread, but when transmitting Ethernet data, the existing technical applications are to form an Ethernet bridge in a point-to-point manner for transparent transmission, and use stream Control technology and TCP / IP itself has a certain degree of self-adaptive ability, realizing the composite of 10M / 100M broadband data to the E1 channel with only 2M bandwidth for transmission. The data is multiplexed into the E1 channel. Although this method realizes the function of using the E1 channel to transmit Ethernet data, most of them are exclusive methods, that is, the E1 channel is monopolized and cannot transmit o...

AI Technical Summary

Problems solved by technology

Although this method realizes the function of using the E1 channel to transmit Ethernet data, most of them are exclusive methods, that is, the E1 channel is monopolized and cannot transmit other services (such as Ethernet to E1 converters on the market); It can not monopolize the E1 channel technology, but it still belongs to point-to-point transmission, that is, the E1 channel can only transmit Ethernet data between two points at the same time

[0003] The above technologies cannot be applied when point-to-multipoint simultaneous transmission is required. Multiple pairs of devices must be used to complete, and the data of multiple pairs of devices needs to be integrated to a certain extent, and additional multiple network ports are occupied at the central node to realize data transmission. summary

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