Wired network connection method and network device applying same

Abstract

The invention relates to a wired network connection method and a network device applying the same. The wired network connection method comprises the following steps that: two network devices exchange the connection capability information with the other party through a first pair of lines and a second pair of lines of a network cable; the connection capability information at least comprises a first connection mode connected by four pairs of lines, a second connection mode connected by three pairs of lines, and a third connection mode connected by two pairs of lines; and then the two network devices detect the pair number of lines which can be normally connected in the network cable; and finally the two network devices decide to adopt one of the first, the second or the third connection mode for connection according to the pair number of lines which can be connected and the mutual connection capability.

Description

technical field [0001] The invention relates to a network connection method, in particular to a wired network connection method. Background technique [0002] like figure 1 Shown is a schematic diagram of 1000Base-T and 10GBase-T Ethernet network standards using 4-pair network cable transmission to support high-performance full-duplex data transmission within 100 meters. If the network devices at both ends of the network cable (active network device 1, such as Switch and passive network device 2, such as NIC) use the 1000Base-T Ethernet network standard, the data transmission rate of each pair of the network cable is 250Mbps, and the four-pair cable The total cable rate is 1000M (ie 1G) bps. If the active network device 1 and the passive network device 2 use the 10GBase-T Ethernet network standard, the data transmission rate of each pair of network cables is 2.5Gbps, and the total of four pairs of cables is 2.5Gbps. The rate is 10Gbps. And according to the 1000Base-T and ...

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Problems solved by technology

And according to the 1000Base-T and 10GBase-T Ethernet standard specifications, when transmitting data, four pairs of network cables must be used for transmission. If one or two pairs of four pairs of lines are interrupted, the connection cannot be completed. line action

[0003] Generally speaking, there should be 4 pairs of wires in the network cable, but because the network devices that traditionally apply the 10Base-T or 100Base-T network standard only need to use the first and second pairs of wires in the network cable, some Although the network cable provided by the industry still retains four pairs of connectors at the head end, there are only 2 pairs of wires in the network cable, and users often do not know

[0004] Therefore, when the user uses a network device that supports 1000Base-T or 10GBase-T standard to connect with a network device that supports 1000Base-T or 10GBase-T standard through the network cable, the network cable is less than 2 The line alignment does not meet the requirements of the 1000Base-T or 10GBase-T standard specifications, resulting in the fact that although the network devices at both ends have the ability to support 1G or 10G transmission rates, the number of pairs of network lines is insufficient and is limited by the specifications. The embarrassing situation that it cannot be connected with 1G or 10G transmission rate, but can only be connected with the two-pair line transmission rate stipulated by the Ethernet standard, that is, 10Mbps connection, resulting in the performance of the network device due to the network line pair. Insufficient or damaged network cable pairs are limited

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