Ethernet link detection method and device
A technology of an Ethernet link and a detection method, applied in the field of an Ethernet link detection method and device, capable of solving problems such as distinction and failure of an Ethernet physical link, and achieving the effects of ensuring accuracy and avoiding affecting link detection
Active Publication Date: 2018-11-16
MAIPU COMM TECH CO LTD
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Therefore, device A cannot distinguish from the received code stream which is the data code stream sent by the Ethernet port of device B, and which is the detection code stream reflected back after sending out the detection code stream from device A, which will inevitably cause device A to detect the Ethernet physical link failure
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[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0034] In a 1000M Ethernet network, there are 4 pairs of commonly used twisted pairs (A pair, B pair, C pair and D pair). figure 1 The network architecture diagram of the Ethernet link detection application shown in the figure, in the case of link connectivity (LINK), both device A and device B will use 4 pairs of twisted-pair wires to send data streams to each other. In order to avoid the problem that the data code stream affects the link detection, take devi...
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The invention provides an Ethernet link detection method and device and belongs to the technical field of data communication. The method comprises configuring the Gigabit Ethernet port of a device tobe tested in a 100Mbps full-duplex mode; separately configuring the operating mode of the Gigabit Ethernet port of the device to be tested as a normal mode and a cross mode; starting the Ethernet linkdetection of the Gigabit Ethernet port of the device to be tested separately when the operating mode of the Gigabit Ethernet port of the device to be tested is the normal mode and the cross mode so as to obtain a corresponding first detection result and a second detection result; and obtaining an Ethernet link detection result of the Gigabit Ethernet port according to the first detection result and the second detection result. The method can avoid the influence of an Ethernet link data stream on the link detection so as to achieve link detection accuracy while ensuring the normal operation ofthe network.
Description
technical field [0001] The invention belongs to the technical field of data communication, in particular to an Ethernet link detection method and device Background technique [0002] At present, most Ethernet PHY (physical layer) chips support the Ethernet link detection function. The principle of the Ethernet link detection function is to send out a detection stream (such as a series of detection signals or a detection pulse), and then send The amplitude and time of the transmitted signal can roughly estimate the impedance of the line and the length of the line. It can judge whether the Ethernet physical link installed in the actual project is abnormal. [0003] The Ethernet cables we usually use usually include 4 pairs of twisted pairs, and 1000M (Gigabit) Ethernet links will completely use these 4 pairs of twisted pairs, but in a 1000M network, if the devices at both ends of the link are working normally In this case, the detection success rate is extremely low. The re...
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IPC IPC(8): H04L12/26H04L12/28
CPCH04L12/2856H04L43/0811H04L43/0894
Inventor 王鑫
Owner MAIPU COMM TECH CO LTD