CN1708027A - Method for transmitting Ethernet equipment duplex mode information - Google Patents
Method for transmitting Ethernet equipment duplex mode information Download PDFInfo
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- CN1708027A CN1708027A CN 200410046355 CN200410046355A CN1708027A CN 1708027 A CN1708027 A CN 1708027A CN 200410046355 CN200410046355 CN 200410046355 CN 200410046355 A CN200410046355 A CN 200410046355A CN 1708027 A CN1708027 A CN 1708027A
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Abstract
The method of transmitting duplex mode information of Ethernet equipment includes: for the Ethernet equipment to utilize one idle physical connection line in the RJ45 interface in sending its self duplex mode information and one other idle physical connection line in the RJ45 interface in receiving the duplex mode information the opposite side sends; to connect the sending/receiving physical connection lines with the receiving/sending physical connection lines in the RJ45 interface of the opposite side; and for the Ethernet equipment in both sides to share one third idle physical connection line as ground line. The method is simple and reliable, and can solve the problem in matching the operation mode in both sides, especially in case of one side in self-consulting mode and the other side in forced 10 M or 100 M mode.
Description
Technical field
The present invention relates to ethernet device, relate in particular to the transfer approach of information between ethernet device.
Background technology
Intercommunicated transmission of crossing auto-negotiation agreement realization interconnection information needed between present 10,000,000, the 100 mbit ethernet equipment.In order to be connected with the early stage ethernet device that the auto-negotiation function is not provided, equipment is execution " detection of parallel link test pulse " earlier before auto-negotiation information is detected.In addition, when equipment (comprising the equipment that the auto-negotiation function is provided) is forced to be operated in 10,000,000 or 100,000,000 speed states, can not send the auto-negotiation protocol package, but send the link integrity test bag, interconnected between the equipment also is to rely on the detection link test pulse of sending each other to finish.This moment, the interconnection of equipment room can have problems under specific circumstances.Illustrate: the ethernet device of two ends interconnection is set to auto-negotiation mode (auto negotiation mode can be supported 10,000,000,100,000,000 full and half duplex pattern) respectively and forces 100,000,000 full duplex modes.Force the equipment of 100,000,000 full duplexs not send negotiated packet owing to be operated in, so opposite equip. can only be obtained job information from the link test pulse that it sends.And these information can only provide operating rate, do not have duplex mode information.The equipment work pattern that be operated in the auto-negotiation mode this moment finally can be set to 100,000,000 half-duplexs.Both sides are operated under the different dual-modes.Hence one can see that is operated in and forces 10,000,000 or 100,000,000 ethernet device can't transmit duplex and semiduplex mode information, and the other side can be defaulted as the half-duplex state that is operated in.And thereby both sides' mode of operation of interconnection does not match and can cause data to send and receive unusual.
United States Patent (USP) 6665275 (Network device including automatic detection of duplexmismatch) has proposed a kind of technical scheme that addresses this problem, by detecting under the conflict generation state whether receive that the method for whole frame solves this problem.When both sides' mode of operation did not match, promptly a side was operated in half-duplex, and the other end is operated in full duplex.Be operated in a semiduplex end and can often receive collision signal, yet, can continue to send data because full duplex one end can't have been learnt the conflict generation.So also can receive complete packet when half duplex side is received conflict.Just can determine that duplex mode has taken place not to match this moment.But in one case, make and to produce wrong result in this way equally: though when interconnection both sides dual-mode coupling, but have under the situation of late collision generation, also can receive the whole frame that the opposite end sends over when ethernet device may be received conflict, may think that duplex mode does not match and produces erroneous judgement this moment.
Summary of the invention
Purpose of the present invention is exactly in order to overcome the equipment that Ethernet auto-negotiation function is not provided in the prior art and to be operated in the problem that the ethernet device of forcing under 10,000,000,100,000,000 patterns can't transmit duplex, semiduplex mode information, propose a kind of integrality that need not to detect the conflicting hours certificate, can accurately obtain the method for the transmission duplex mode information of Ethernet equipment of opposite end duplex mode information in all cases.
Technical scheme of the present invention is: a kind of method that transmits duplex mode information of Ethernet equipment, comprise: ethernet device sends the duplex mode information of self with an idle physics connecting line of RJ45 interface, receive the duplex mode information that the opposite end sends with the idle physics connecting line of another root of RJ45 interface, the corresponding reception/transmission physical connection line interconnection of the physical connection line of transmission/reception and opposite end ethernet device RJ45 interface; Shared the 3rd idle physics connecting line of both sides' ethernet device is as ground wire.
Perhaps: ethernet device sends the duplex mode information of self with a pair of idle physics connecting line of RJ45 interface, with another of RJ45 interface idle physics connecting line is received duplex mode information that the opposite end sends, the corresponding reception/transmission physical connection line of the physical connection line of transmission/reception pair and opposite end ethernet device RJ45 interface is to interconnection.
Above-mentioned duplex mode information of Ethernet equipment comprises: 10,000,000 full-duplex modes, 10,000,000 complete half worker's pattern, 100,000,000 full-duplex modes and 100,000,000 semiduplex modes.
The duplex mode information of Ethernet equipment that transmits can be high and low level signal, also can be the coded message of specific format.
The ethernet device that operates in the pressure mode only sends the duplex mode information of this equipment at corresponding duplex mode information transmitting terminal, do not detect the duplex mode information that the opposite end sends.
The ethernet device that operates in the auto-negotiation mode sends the duplex mode information of this equipment at corresponding duplex mode information transmitting terminal, and detects the duplex mode information that send the opposite end.
The method that the present invention proposes utilizes that idle not 4 physical connection lines of usefulness transmit duplex mode information of Ethernet equipment in the Ethernet RJ45 interface, realize simple and reliablely, can solve the mismatch problem of the ethernet device both sides mode of operation that interconnects in the prior art.Especially be auto negotiation mode a side, the opposing party is under pressure 10,000,000 or 100,000,000 patterns, and a side's of auto-negotiation negotiation result only may be a semiduplex mode, causes the abnormal problem of communication.Use the method for the present invention's proposition, need not to detect the integrality of conflicting hours certificate, can accurately obtain the opposite end duplex mode information in all cases.
Description of drawings
Fig. 1 is the physical connection schematic diagram of one embodiment of the present of invention;
Fig. 2 is the conveyer circuit theory diagrams of this embodiment.
Embodiment
The present invention is described in further detail below in conjunction with drawings and Examples.
The RJ45 interface of ethernet device has 8 physical connection lines, and wherein 4 velamens are used in and transmit and receive data, and remains 4 and does not use.The present invention utilizes these 4 idle physical connection lines to transmit the duplex mode information of ethernet device.Fig. 1 is the physical connection schematic diagram of one embodiment of the present of invention, and as shown in Figure 1, Pin1,2 is data output end Tx+, the Tx-of ethernet device; Pin3,6 is the data receiver of ethernet device, Rx+, Rx-.Pin4,5 is used for transmitting the full and half duplex pattern information of ethernet device, and Pin7,8 is used to receive the full and half duplex pattern information of ethernet device work.The duplex mode information of Ethernet equipment that transmits can be high and low level signal, also can be the coded message of specific format.
Fig. 2 is the conveyer circuit theory diagrams of the foregoing description.As shown in Figure 2, separate with the transmission line of optocoupler in an embodiment of the present invention duplex mode information reception, transtation mission circuit and RJ45 on the equipment.R1 is a pull down resistor, that is to say that transmitting terminal defaults to low level, and optocoupler 1 not conducting this moment makes optocoupler 2 also not conductings.Receiving terminal connects power supply by pull-up resistor R4, defaults to high level.In an embodiment of the present invention, it is as follows to set level: when ethernet device is operated in half-duplex, send control end (Transmit) output low level, by optocoupler Hou, receiving terminal receives level for high; Otherwise, when ethernet device is operated in full duplex, send control end (Transmit) output high level, by optocoupler Hou, it is low that receiving terminal receives level.
In an embodiment of the present invention, suppose that ethernet device E1 is operated in the auto-negotiation mode, ethernet device E2 is operated in and forces 100,000,000 full duplex modes.Because E2 does not handle the duplex mode information that is sent by the other side who receives on the Pin7,8 for forcing 100,000,000 full duplexs.Corresponding information transmits control end and is changed to high level, optocoupler 1 and all conductings of optocoupler 2, and the E1 receiving terminal is a low level.E1 at first carries out agreement protocol, and register is consulted in the software inquiry, can obtain the E1 operating state of this moment after consulting to finish from result register: 100,000,000 half-duplexs.This moment is in the output control terminal output low level.Output level constant time lag a period of time, (in order to prevent the opposite end also was auto-negotiation equipment, is set to the certain duplex information of the other side the time), E1 detects the receiving terminal level, in the present embodiment, testing result is a low level, learn that opposite equip. E2 operates in the full duplex state, thereby judge that E2 for forcing 100,000,000 full duplexs, does not match with the local terminal mode of operation.So E1 is configured to force 100,000,000 full duplexs with local terminal, output is changed to high level.Like this, the method that the application of the invention proposes makes both sides' equipment all operate in 100,000,000 full-duplex modes, the problem of having avoided dual-mode not match and bring.
Claims (8)
1, a kind of method that transmits duplex mode information of Ethernet equipment, it is characterized in that: ethernet device sends the duplex mode information of self with an idle physics connecting line of RJ45 interface, receive the duplex mode information that the opposite end sends with the idle physics connecting line of another root of RJ45 interface, the corresponding reception/transmission physical connection line interconnection of the physical connection line of transmission/reception and opposite end ethernet device RJ45 interface; Shared the 3rd idle physics connecting line of both sides' ethernet device is as ground wire.
2, a kind of method that transmits duplex mode information of Ethernet equipment, it is characterized in that: ethernet device sends the duplex mode information of self with a pair of idle physics connecting line of RJ45 interface, with another of RJ45 interface idle physics connecting line is received duplex mode information that the opposite end sends, the corresponding reception/transmission physical connection line of the physical connection line of transmission/reception pair and opposite end ethernet device RJ45 interface is to interconnection.
3, method according to claim 1 and 2 is characterized in that described duplex mode information of Ethernet equipment comprises: 10,000,000 full-duplex modes, 10,000,000 complete half worker's pattern, 100,000,000 full-duplex modes and 100,000,000 semiduplex modes.
4, method according to claim 1 and 2 is characterized in that: the duplex mode information of Ethernet equipment of described transmission is high and low level signal.
5, method according to claim 4 is characterized in that: ethernet device is constant time lag a period of time when sending the level signal of duplex mode information.
6, method according to claim 1 and 2 is characterized in that: the duplex mode information of Ethernet equipment of described transmission is the coded message of specific format.
7, method according to claim 1 and 2 is characterized in that: the ethernet device that operates in the pressure mode only sends the duplex mode information of this equipment at corresponding duplex mode information transmitting terminal, do not detect the duplex mode information that the opposite end sends.
8, method according to claim 1 and 2 is characterized in that: the ethernet device that operates in the auto-negotiation mode sends the duplex mode information of this equipment at corresponding duplex mode information transmitting terminal, and detects the duplex mode information that send the opposite end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100463550A CN100336361C (en) | 2004-06-07 | 2004-06-07 | Method for transmitting Ethernet equipment duplex mode information |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100463550A CN100336361C (en) | 2004-06-07 | 2004-06-07 | Method for transmitting Ethernet equipment duplex mode information |
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| CN1708027A true CN1708027A (en) | 2005-12-14 |
| CN100336361C CN100336361C (en) | 2007-09-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2004100463550A Expired - Fee Related CN100336361C (en) | 2004-06-07 | 2004-06-07 | Method for transmitting Ethernet equipment duplex mode information |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100438457C (en) * | 2006-11-09 | 2008-11-26 | 华为技术有限公司 | Working mode detection, warning method and device |
| CN101047712B (en) * | 2006-06-19 | 2010-04-21 | 华为技术有限公司 | Device and method for detecting Ethernet interface configuration |
| CN102117218A (en) * | 2011-02-17 | 2011-07-06 | 中兴通讯股份有限公司 | Embedded equipment and method for downloading program of programmable logic device in same |
| CN101345754B (en) * | 2008-08-20 | 2011-12-28 | 北京星网锐捷网络技术有限公司 | Duplexing pattern matching method and apparatus, communication system |
| CN101778009B (en) * | 2009-01-12 | 2012-09-05 | 瑞昱半导体股份有限公司 | Wired network connection method and network device applying same |
| CN103457744A (en) * | 2013-09-25 | 2013-12-18 | 胡清桂 | 8-wiring-system network card |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5309092A (en) * | 1993-01-27 | 1994-05-03 | Hewlett-Packard Company | Token ring test simulation method and device |
| US6533618B1 (en) * | 2000-03-31 | 2003-03-18 | Ortronics, Inc. | Bi-directional balance low noise communication interface |
| WO2001077699A1 (en) * | 2000-04-11 | 2001-10-18 | Sony Electronics Inc. | Automatic straight/crossover cable detection circuit |
| CN2466852Y (en) * | 2001-02-28 | 2001-12-19 | 北京瑞斯康达科技发展有限公司 | Opto-electronic signal converter for Ethernet |
-
2004
- 2004-06-07 CN CNB2004100463550A patent/CN100336361C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101047712B (en) * | 2006-06-19 | 2010-04-21 | 华为技术有限公司 | Device and method for detecting Ethernet interface configuration |
| CN100438457C (en) * | 2006-11-09 | 2008-11-26 | 华为技术有限公司 | Working mode detection, warning method and device |
| CN101345754B (en) * | 2008-08-20 | 2011-12-28 | 北京星网锐捷网络技术有限公司 | Duplexing pattern matching method and apparatus, communication system |
| CN101778009B (en) * | 2009-01-12 | 2012-09-05 | 瑞昱半导体股份有限公司 | Wired network connection method and network device applying same |
| CN102117218A (en) * | 2011-02-17 | 2011-07-06 | 中兴通讯股份有限公司 | Embedded equipment and method for downloading program of programmable logic device in same |
| CN102117218B (en) * | 2011-02-17 | 2014-11-05 | 中兴通讯股份有限公司 | Embedded equipment and method for downloading program of programmable logic device in same |
| CN103457744A (en) * | 2013-09-25 | 2013-12-18 | 胡清桂 | 8-wiring-system network card |
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| CN100336361C (en) | 2007-09-05 |
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Granted publication date: 20070905 Termination date: 20130607 |