CN101123562A - Unidirectional loop Ethernet system and its control method - Google Patents
Unidirectional loop Ethernet system and its control method Download PDFInfo
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- CN101123562A CN101123562A CNA2006101101058A CN200610110105A CN101123562A CN 101123562 A CN101123562 A CN 101123562A CN A2006101101058 A CNA2006101101058 A CN A2006101101058A CN 200610110105 A CN200610110105 A CN 200610110105A CN 101123562 A CN101123562 A CN 101123562A
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Abstract
A one-way loop Ethernet system comprises a first network device, a second network device and a third network device. The first network device has a first receiving unit and a first transmission unit; the second network device has a second receiving unit and a second transmission unit, and the second receiving unit is electrically connected with the first transmission unit of the first network device; the third network device has the third receiving unit and the third transmission unit, the third receiving unit is electrically connected with the second transmission unit of the second network device, whereas the third transmission unit is electrically connected with the first receiving unit of the first network device. The present invention also discloses a control method of the one-way loop Ethernet system.
Description
Technical field
The present invention is about a kind of Ethernet system and control method thereof, especially in regard to a kind of one-way loop Ethernet system and control method thereof.
Background technology
Since the Ethernet development, because it can provide stable communication quality, therefore widely popular the use with structure is the interior zone network.
At present a kind of Ethernet system of often using is tree, please refer to shown in Figure 1ly, and tree-shaped Ethernet system 1 for example comprises three network equipments 11,12,13.Wherein this network equipment 11 is a main node (node), and it has two transceivers 111,112, and these a plurality of network equipments 12,13 have respectively one with these a plurality of transceiver 111,112 corresponding transceivers 121,131.Wherein, a plurality of transceivers 111,112 of this of this network equipment 11 are electrically connected with these a plurality of transceivers 121,131 of these a plurality of network equipments 12,13 respectively.In other words, increase and increase thereupon as the number of transceivers of this network equipment 11 of main node quantity in this tree-shaped Ethernet system 1 according to network equipment, the tree-shaped Ethernet system 1 of as shown in Figure 1 this, though it is made of network equipment and two network equipments as main node, but it needs 4 transceivers altogether, can set up a tree-shaped Ethernet.
In addition, another kind of Ethernet system commonly used at present is two-way loop configuration, please refer to shown in Figure 2ly, a two-way loop ethernet system 2 comprises three network equipments 21,22,23, and each network equipment 21,22,23 has two transceivers 211,212,221,222,231,232 respectively.Wherein, a plurality of transceivers 211,212 of this of this network equipment 21 are electrically connected with this transceiver 222 of this network equipment 22 and this transceiver 231 of this network equipment 23 respectively; This transceiver 221 of this network equipment 22 is electrically connected with this transceiver 232 of this network equipment 23.Anticipate promptly, the two-way annular Ethernet system 2 of as shown in Figure 2 this, though it is made of three network equipments, it needs 6 transceivers altogether, can set up a two-way loop ethernet.
Employed grid line between each network equipment of the above-mentioned tree or the Ethernet system of two-way loop configuration is generally the RJ metal wire.Yet recently because optical fiber communication technology has high transmission frequency width, low noise, low line power loss and preferable advantages such as anti-electromagnetic interference usefulness, so fiber optic cables also widely are used in the network system.But because fiber optic cables must cooperate the use of fiber optical transceiver (Opticaltransceiver), and the transceiver costliness of the general copper cash (for example RJ metal wire) of the price of fiber optical transceiver, and if above-mentioned Ethernet system will cause the increase of its cost multiple when using fiber optic cables to carry out transfer of data.
From the above,, how to set up a comparatively simple Ethernet system, its cost is controlled, real one of the current important topic that belongs to for the consideration of cost.
Summary of the invention
Because above-mentioned problem, purpose of the present invention is for providing a kind of one-way loop Ethernet system and control method thereof that can reduce infrastructure cost.
For achieving the above object, comprise one first network equipment, one second network equipment and one the 3rd network equipment according to a kind of one-way loop Ethernet system of the present invention.This first network equipment has one first receiving element and one first transmitting element; This second network equipment has one second receiving element and one second transmitting element, and this second receiving element is electrically connected with this first transmitting element of this first network equipment; The 3rd network equipment has one the 3rd receiving element and one the 3rd transmitting element, and the 3rd receiving element is electrically connected with this second transmitting element of this second network equipment, and the 3rd transmitting element is electrically connected with this first receiving element of this first network equipment.
In addition, the control method of a kind of one-way loop Ethernet system of the present invention is by one first network equipment, one second network equipment and one the 3rd network equipment fit applications, and this control method may further comprise the steps: send data to this second network equipment by this first network equipment; And these data are sent to the 3rd network equipment by this second network equipment.
From the above, because of foundation a kind of one-way loop Ethernet system of the present invention and control method thereof, in each network equipment, only need use a receiving element and a transmitting element, in other words, network equipment only needs a transceiver to get final product, compared to known technology, it can reduce the usage quantity of transceiver, therefore can reduce the infrastructure cost of Ethernet.
Description of drawings
Fig. 1 is for showing a kind of schematic diagram of known tree-shaped Ethernet structure;
Fig. 2 is for showing a kind of schematic diagram of known two-way loop ethernet structure;
Fig. 3 is for showing the schematic diagram according to a kind of one-way loop Ethernet system of preferred embodiment of the present invention;
Fig. 4 is the schematic diagram of demonstration according to the network equipment structure of a kind of one-way loop Ethernet system of preferred embodiment of the present invention;
Fig. 5 is demonstration another schematic diagram according to the network equipment structure of a kind of one-way loop Ethernet system of preferred embodiment of the present invention;
Fig. 6 is for showing the schematic diagram according to a kind of one-way loop Ethernet system of another preferred embodiment of the present invention; And
Fig. 7 is the flow chart of demonstration according to the control method of a kind of one-way loop Ethernet of preferred embodiment of the present invention.
The main element symbol description
1,2: Ethernet system
11,12,13: network equipment
111,112,121,131: transceiver
21,22,23: network equipment
211,221,231: transceiver
212,222,232: transceiver
3: one-way loop Ethernet system
31: the first network equipments
311: the first transceivers
312: switch unit
313: judging unit
32: the second network equipments
321: the second transceivers
33: the three network equipments
331: the three transceivers
34: electronic installation
Tx1: first transmitting element
Tx2: second transmitting element
Tx3: the 3rd transmitting element
Rx1: first receiving element
Rx2: second receiving element
Rx3: the 3rd receiving element
P
11, P
21, P
31: first connectivity port
R
11, R
12, R
13: receiving terminal
T
11, T
12, T
13: transmitting terminal
P
12, P
22, P
32: second connectivity port
P
13, P
23, P
33: the 3rd connectivity port
D1: data
Embodiment
Hereinafter with reference to relevant drawings, unidirectional loop network system and control method thereof according to preferred embodiment of the present invention are described.
Please refer to shown in Figure 3ly, comprise one first network equipment 31, one second network equipment 32 and one the 3rd network equipment 33 according to a kind of one-way loop Ethernet system 3 of preferred embodiment of the present invention.
This first network equipment 31 has one first receiving element Rx1 and one first transmitting element Tx1.
This second network equipment 32 has one second receiving element Rx2 and one second transmitting element Tx2.Wherein this second receiving element Rx2 is electrically connected with this first transmitting element Tx1 of this first network equipment 31.In present embodiment, this second receiving element Rx2 is electrically connected with this first transmitting element Tx1 of this first network equipment 31 with fiber optic cables.
The 3rd network equipment 33 has one the 3rd receiving element Rx3 and one the 3rd transmitting element Tx3.Wherein the 3rd receiving element Rx3 is electrically connected with this second transmitting element Tx2 of this second network equipment 32, and the 3rd transmitting element Tx3 is electrically connected with this first receiving element Rx1 of this first network equipment 31.In present embodiment, this second transmitting element Tx2 also is electrically connected with the 3rd receiving element Rx3 of the 3rd network equipment 33 with fiber optic cables, and the 3rd transmitting element Tx3 also is electrically connected with this first receiving element Rx1 of this first network equipment 31 with fiber optic cables.
The person of noting, electrical connection between above-mentioned this first receiving element Rx1, this first transmitting element Tx1, this second receiving element Rx2, this second transmitting element Tx2, the 3rd receiving element Rx3 and the 3rd transmitting element Tx3 also can use the RJ metal wire to set up this one-way loop Ethernet system 3 except that using the fiber optic cables.
In addition, in present embodiment, this first receiving element Rx1 and this first transmitting element Tx1 constitute one first transceiver 311; This second receiving element Rx2 and this second transmitting element Tx2 constitute one second transceiver 321; The 3rd receiving element Rx3 and the 3rd transmitting element Tx3 constitute one the 3rd transceiver 331.In addition, this first transceiver 311, this second transceiver 321 and the 3rd transceiver 331 can be respectively a fiber optical transceiver.
Please refer to shown in Figure 4ly, is example with this first network equipment 31, and it has one and switches unit 312, and this switch unit 312 has one first connectivity port P at least
11, one second connectivity port P
12And one the 3rd connectivity port P
13, each connectivity port P wherein
11, P
12, P
13Has a receiving terminal R
11, R
12, R
13An and transmitting terminal T
11, T
12, T
13
Because Ethernet need meet the standard of IEEE 802.3, a standard wherein is that the connectivity port of network equipment is after receiving data, the destination of sending when this data institute tendency to develop is not recorded in this network equipment, promptly, be additional to destination information in these data and be not recorded in the medium access control table of comparisons (the media access control table of this network equipment as yet, MAC table) in the time of in, this network equipment must send by the transmitting terminal of its all connectivity ports except the connectivity port that receives these data the mode of these data with broadcasting (broadcasting) with these data.
For compliant, this first connectivity port P
11Be electrically connected with this first transceiver 311, wherein this first connectivity port P
11This receiving terminal R
11Be electrically connected with this first receiving element Rx1 of this first transceiver 311, and this first connectivity port P
11This transmitting terminal T
11Be electrically connected with this first transmitting element Tx1 of this first transceiver 311.
This second connectivity port P
12This receiving terminal R
12And this transmitting terminal T
12Be electrically connected with an electronic installation 34 (for example for having the computer of network function).And the 3rd connectivity port P
13This receiving terminal R
13And this transmitting terminal T
13Be electrically connected mutually, in other words, the 3rd connectivity port P
13This receiving terminal R
13And this transmitting terminal T
13Be short circuit, referred to herein as circuitous port (Detour port).
For example, referring again to shown in Figure 4, in above-mentioned structure, when this first receiving element Rx1 of this first network equipment 31 received a data D1, then these data D1 will be sent to this first connectivity port P of this switch unit 312 by this first receiving element Rx1
11This receiving terminal R
11, if be additional to destination information among these data D1 when not being recorded in this first network equipment 31 as yet, then this switch unit 312 of this first network equipment 31 with these data D1 respectively by this second connectivity port P
12And the 3rd connectivity port P
13This transmitting terminal T
12, T
13Send.At this moment, with this second connectivity port P
12This electronic installation 34 that is electrically connected will receive these data D1, if these data D1 is the required data D1 that is this electronic installation 34, then this electronic installation 34 promptly can be handled these data D1 after reception; When data D1 is taken by this electronic installation 34, then this electronic installation 34 promptly can be ignored these data D1.
In addition, because the 3rd connectivity port P
13This receiving terminal R
13With this transmitting terminal T
13Be short circuit, therefore as the 3rd connectivity port P
13This transmitting terminal T
13After these data D1 transmission, these data D1 can enter the 3rd connectivity port P
13This receiving terminal R
13At this moment, these data D1 will be again by this first connectivity port P
11This transmitting terminal T
11These data D1 sends, so that can continue toward the network equipment of next stage to transmit.
What this will specify be, when these data D1 was transmitted with broadcast mode by this first network equipment 31, this first network equipment 31 can add an identification code in these data D1, and in present embodiment, this identification code can be a virtual net territory identification code.
Please refer to shown in Figure 5ly, is example with first network equipment 31 again, and it also has a judging unit 313, and it is electrically connected with this first receiving element Rx1 of this first transceiver 311.This judging unit 313 sends according to this first network equipment 31 of whether serving as reasons of this identification code in received these data of this first receiving element Rx1, after judgement via this judging unit 313, confirm that these data are sent by this first network equipment 31, then this first network equipment 31 will stop sending, and forms information storm (Data storm) and has occupied frequency range to avoid the transmission with endless back ring type in this one-way loop Ethernet system 3 of these data.In present embodiment, this judging unit 313 can be a microprocessor or a logic gate array.
This above-mentioned switch unit 312 and this judging unit 313 are example to be arranged at this first network equipment 31 only, certainly, also switch unit and judging unit can be set in this second network equipment 32 and the 3rd network equipment 33, so that this one-way loop Ethernet system 3 is more complete.
From the above, when this second network equipment 32 and the 3rd network equipment 33 also have switch unit and judging unit, then when these data D1 is transmitted with broadcast mode by this first network equipment 31, its judgment mechanism also can be set in the 3rd network equipment 33, in other words, when these data D1 is sent to the 3rd network equipment 33, promptly can make its termination that these data D1 is sent to this first network equipment 31.
Avoid the method for information storm, also can be by the virtual region network function transmission of restricting data in addition of Ethernet.Please refer to shown in Figure 6ly, in present embodiment, this second network equipment 32 has one second switch unit 322, and this first switch unit 312 of this second switch unit 322 and this first network equipment 31 is identical has one first connectivity port P at least
21, one second connectivity port P
22And one the 3rd connectivity port P
23The 3rd network equipment 33 has one the 3rd switch unit 332, and the 3rd switch unit 332 also has one first connectivity port P
31, one second connectivity port P
32And one the 3rd connectivity port P
33Wherein, this first connectivity port P of each switch unit 312,322,332
11, P
21, P
31Be connected with the transceiver of each network equipment respectively; This second connectivity port P of each switch unit 312,322,332
12, P
22, P
32Be connected with peripheral electronic device respectively; The 3rd connectivity port P of each switch unit 312,322,332
13, P
23, P
33Be all circuitous port.
With first network equipment 31 is example, as the first connectivity port P
11Be defined as belonging to the first virtual net territory and the second virtual net territory, the second connectivity port P
12Be defined and belong to the second virtual net territory, and the 3rd connectivity port P
13Be defined and belong to the first virtual net territory and the 3rd virtual net territory.Thus, when a broadcast data that is defined as the 3rd virtual net territory by the second connectivity port P
12Enter, then first network equipment 31 is about to this broadcast data and is sent to the 3rd connectivity port P
13When a broadcast data that is defined as the second virtual net territory by the 3rd connectivity port P
13Enter, then first network equipment 31 is about to this broadcast data and is sent to this first connectivity port P
11And this second connectivity port P
12
Therefore, in present embodiment, if with in this one-way loop Ethernet system 3 except the 3rd connectivity port P of this first network equipment 31
13And this first connectivity port P of the 3rd network equipment 33
31Outer connectivity port be defined as and belong to this first virtual net territory, and will with this second connectivity port P of this first network equipment 31
12The data that the peripheral electronic device that connects is sent also are defined as and belong to the first virtual net territory.Thus, the data that belong to this first virtual net territory promptly can be transferred into this second network equipment 32 and the 3rd network equipment 33, and the peripheral electronic device that is connected with this second network equipment 32 and the 3rd network equipment 33, but can not be resent to this first network equipment 31 by the 3rd network equipment 33.In other words, the data that belong to the first virtual net territory will can not produce the information storm in one-way loop Ethernet system 3.
For making the method for avoiding the information storm to produce more clear, below will be with an example in detail.
At first explanation is, by this second connectivity port P of this first network equipment 31
12The data that enter are by the identification code in these first network equipment, 31 additional one first virtual net territories; This second connectivity port P by this second network equipment 32
22The data that enter are by the identification code in these second network equipment, 32 additional one second virtual net territories; This second connectivity port P by the 3rd network equipment 33
32The data that enter are by the identification code in the 3rd network equipment 3 additional one the 3rd virtual net territories.
In present embodiment, if this first connectivity port P of this first network equipment 31
11Be defined as belonging to the first virtual net territory and the 3rd virtual net territory, the 3rd connectivity port P
13Be defined as belonging to the second virtual net territory and the 3rd virtual net territory; This first connectivity port P of this second network equipment 32
21Be defined as belonging to the first virtual net territory and the second virtual net territory, the 3rd connectivity port P
23Be defined as belonging to the first virtual net territory and the 3rd virtual net territory; This first connectivity port P of the 3rd network equipment 33
31Be defined as belonging to the second virtual net territory and the 3rd virtual net territory, the 3rd connectivity port P
33Be defined as belonging to the first virtual net territory and the second virtual net territory; The a plurality of second connectivity port P of this of each network equipment 31,32,33
12, P
22, P
32All be defined as belonging to the first virtual net territory, the second virtual net territory and the 3rd virtual net territory.So, the data of being transmitted in one-way loop Ethernet system also can be avoided the generation of information storm.
More than, be the example explanation with one-way loop Ethernet system with three network equipments, certainly, one-way loop Ethernet system can have more network equipment to adapt to actual network system design.
Below, please refer to Fig. 7 and the foregoing description, with the control method of explanation according to the one-way loop Ethernet system of preferred embodiment of the present invention.Wherein one-way loop Ethernet system such as above-mentioned embodiment are by this first network equipment 31, this second network equipment 32 and the 3rd network equipment 33 fit applications, and as shown in Figure 6, the control method of this one-way loop Ethernet system comprises that step S01 is to step S04.
Step S01 sends these data D1 to this second network equipment 32 by this first network equipment 31; Step S02 is sent to the 3rd network equipment 33 by this second network equipment 32 with these data D1; Step S03 is sent to this first network equipment 31 by the 3rd network equipment 33 with these data D1; Step S04 stops sending these data D1 by this first network equipment 31.
Wherein, detailed control method has described its start in detail in the foregoing description, so no longer add to give unnecessary details in this.
In sum, because of foundation a kind of one-way loop Ethernet system of the present invention and control method thereof, in each network equipment, only need use a receiving element and a transmitting element, in other words, each network equipment only needs a transceiver to get final product, and therefore can be applicable in the more simple network (for example home network or automobile-used network).In addition, compared to known technology, this one-way loop Ethernet system of the present invention can significantly reduce the usage quantity of transceiver, and this network equipment in this system can reduce the infrastructure cost of Ethernet system more for a long time significantly.
The above only is an illustrative, but not is restrictive.Anyly do not break away from spirit of the present invention and category, and, all should be included in the scope of accompanying Claim model its equivalent modifications of carrying out or change.
Claims (20)
1. one-way loop Ethernet system comprises:
One first network equipment has one first receiving element and one first transmitting element;
One second network equipment has one second receiving element and one second transmitting element, and this second receiving element is electrically connected with this first transmitting element of this first network equipment; And
One the 3rd network equipment has one the 3rd receiving element and one the 3rd transmitting element, and the 3rd receiving element is electrically connected with this second transmitting element of this second network equipment, and the 3rd transmitting element is electrically connected with this first receiving element of this first network equipment.
2. Ethernet system as claimed in claim 1, wherein this first, second or the 3rd transmitting element with fiber optic cables or a RJ metal wire, and with this second, third or first receiving element be electrically connected.
3. Ethernet system as claimed in claim 1, wherein this first, second or the 3rd receiving element and this first, second or the 3rd transmitting element constitute first, second or the 3rd transceiver or first, second or the 3rd fiber optical transceiver.
4. Ethernet system as claimed in claim 1, wherein this first network equipment, this second network equipment or the 3rd network equipment, also have one and switch the unit, it has one first connectivity port, one second connectivity port and one the 3rd connectivity port, and each connectivity port has a receiving terminal and a transmitting terminal.
5. Ethernet system as claimed in claim 4, wherein this of this switch unit first connectivity port is electrically connected with this first receiving element and this first transmitting element of this first network equipment.
6. Ethernet system as claimed in claim 5, wherein this of this switch unit second connectivity port is electrically connected with an electronic installation.
7. Ethernet system as claimed in claim 6, wherein this receiving terminal of the 3rd connectivity port of this switch unit and this transmitting terminal are electrically connected mutually.
8. Ethernet system as claimed in claim 7, wherein this first connectivity port of being defined as the 3rd connectivity port that belongs to same virtual net territory or the 3rd network equipment and this second network equipment, this first connectivity port of being defined as the 3rd connectivity port that belongs to same virtual net territory, this second network equipment and this first network equipment, this first connectivity port of the 3rd connectivity port of this first network equipment and the 3rd network equipment is defined as and belongs to same virtual net territory.
9. Ethernet system as claimed in claim 1, wherein this first network equipment, this second network equipment or the 3rd network equipment also comprise a judging unit, a microprocessor or a logic gate array, and it is electrically connected with this first receiving element, this second receiving element or the 3rd receiving element.
10. Ethernet system as claimed in claim 9, wherein an identification code or the virtual net territory identification code in the data in this Ethernet system, transmitted of each judgment unit judges.
11. the control method of an one-way loop Ethernet system, it is by one first network equipment, one second network equipment and one the 3rd network equipment fit applications, wherein each network equipment has a switching unit, and this switch unit has one first connectivity port, one second connectivity port and one the 3rd connectivity port, and each connectivity port has a receiving terminal and a transmitting terminal, this receiving terminal and this transmitting terminal of the 3rd connectivity port are electrically connected mutually, and this control method comprises:
Send data to this second network equipment by this first network equipment; And
With three connectivity port of these data, and these data are sent to the 3rd network equipment by this second network equipment via this switch unit of this second network equipment.
12. control method as claimed in claim 11 also comprises three connectivity port of these data via this switch unit of the 3rd network equipment, and by the 3rd network equipment these data is sent to this first network equipment.
13. control method as claimed in claim 12, wherein this first or the 3rd network equipment stops sending these data.
14. control method as claimed in claim 13 wherein after the judgment unit judges of these data by this first or the 3rd network equipment, stops sending these data by this first or the 3rd network equipment.
15. control method as claimed in claim 14, wherein an identification code in these data of this judgment unit judges or a virtual net territory identification code.
16. control method as claimed in claim 11, wherein these data are defined as by this first network equipment and belong to one first virtual net territory.
17. control method as claimed in claim 11 also comprises:
This first connectivity port of this switch unit that defines this first network equipment is for belonging to one first virtual net territory and one the 3rd virtual net territory;
This first connectivity port of this switch unit that defines this second network equipment is for belonging to this first virtual net territory and one second virtual net territory; And
This first connectivity port of this switch unit that defines the 3rd network equipment is for belonging to this second virtual net territory and the 3rd virtual net territory.
18. control method as claimed in claim 11, its this second connectivity port that also comprises this switch unit that defines this first network equipment, this second network equipment and the 3rd network equipment respectively is for belonging to one first virtual net territory, one second virtual net territory and one the 3rd virtual net territory.
19. control method as claimed in claim 11, it also comprises:
The 3rd connectivity port of this switch unit that defines this first network equipment is for belonging to one second virtual net territory and one the 3rd virtual net territory;
The 3rd connectivity port of this switch unit that defines this second network equipment is for belonging to one first virtual net territory and the 3rd virtual net territory; And
The 3rd connectivity port of this switch unit that defines the 3rd network equipment is for belonging to this first virtual net territory and this second virtual net territory.
20. the control method of a unidirectional ring-type Ethernet system, it is by one first network equipment, one second network equipment and one the 3rd network equipment fit applications, and this control method comprises:
Send data to this second network equipment by this first network equipment;
By this second network equipment these data are sent to the 3rd network equipment;
By the 3rd network equipment these data are sent to this first network equipment; And
This first network equipment stops sending these data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101101058A CN101123562A (en) | 2006-08-08 | 2006-08-08 | Unidirectional loop Ethernet system and its control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101101058A CN101123562A (en) | 2006-08-08 | 2006-08-08 | Unidirectional loop Ethernet system and its control method |
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| Publication Number | Publication Date |
|---|---|
| CN101123562A true CN101123562A (en) | 2008-02-13 |
Family
ID=39085745
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006101101058A Pending CN101123562A (en) | 2006-08-08 | 2006-08-08 | Unidirectional loop Ethernet system and its control method |
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| Country | Link |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102347879A (en) * | 2011-05-23 | 2012-02-08 | 大连理工计算机控制工程有限公司 | D-BUS high-speed bus technology based on ring type Ethernet and auxiliary network |
| CN106533877A (en) * | 2015-12-17 | 2017-03-22 | 郭爱波 | One-way transmission ring of Ethernet |
| CN111245583A (en) * | 2018-11-29 | 2020-06-05 | 瑞昱半导体股份有限公司 | Network communication device and method |
-
2006
- 2006-08-08 CN CNA2006101101058A patent/CN101123562A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102347879A (en) * | 2011-05-23 | 2012-02-08 | 大连理工计算机控制工程有限公司 | D-BUS high-speed bus technology based on ring type Ethernet and auxiliary network |
| CN106533877A (en) * | 2015-12-17 | 2017-03-22 | 郭爱波 | One-way transmission ring of Ethernet |
| CN114915459A (en) * | 2015-12-17 | 2022-08-16 | 郭爱波 | Ethernet one-way transmission ring |
| CN114915459B (en) * | 2015-12-17 | 2024-05-24 | 郭爱波 | Annular transmission device |
| CN111245583A (en) * | 2018-11-29 | 2020-06-05 | 瑞昱半导体股份有限公司 | Network communication device and method |
| CN111245583B (en) * | 2018-11-29 | 2022-04-19 | 瑞昱半导体股份有限公司 | Network communication device and method |
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