Ethernet switch and communication method supporting network backup
A switch and Ethernet technology, applied in the direction of data exchange network, digital transmission system, electrical components, etc., can solve the problems of transmission and data packets not being real-time, and achieve the effect of meeting timeliness
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Embodiment 1
[0025] figure 1 It shows the internal structure of the industrial Ethernet switch of the present invention, in addition to the original module of the switch, it also includes a 4G communication module and a processor.
[0026] The processor is used to regularly detect the working state of the switch, and when it is detected that the switch cannot communicate normally, the 4G communication module is controlled to send the data packet to be sent to the 4G communication module of the target switch.
[0027] Generally speaking, the switch will record the connection status of each communication port in log form, and the connection status is also called link status. The processor can judge whether the communication port of the switch communicates normally by reading the link state of the communication port of the switch. When the link state is invalid, it is considered that the switch cannot communicate normally. Specifically, the communication port is an optical port.
Embodiment 2
[0029] In order to reduce the communication pressure of the backup network, people treat the sent data in advance with a timeliness mark according to certain rules, such as putting a timeliness mark on the data packets containing emergency notifications or security accident alarms.
[0030] When detecting that the switch cannot communicate normally, the processor controls the 4G communication module to send the data packet to be sent and with the aging mark to the 4G communication module of the target switch.
[0031] Method embodiment one
[0032] The communication method supporting network backup provided by the present invention includes:
[0033] Step 1: Establish an optical communication connection between the first Ethernet switch and the second Ethernet switch, and simultaneously establish a 4G backup network connection between the two; see figure 2 .
[0034] Step 2: The first Ethernet switch transmits the data packet to be sent to the second Ethernet switch through...
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