CN206433003U - Ethernet link switching device - Google Patents
Ethernet link switching device Download PDFInfo
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- CN206433003U CN206433003U CN201720130606.6U CN201720130606U CN206433003U CN 206433003 U CN206433003 U CN 206433003U CN 201720130606 U CN201720130606 U CN 201720130606U CN 206433003 U CN206433003 U CN 206433003U
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Abstract
The utility model provides a kind of ethernet link switching device, including：One primary link and at least one redundant link；Primary link includes the first ethernet controller, the first ethernet physical layer chip being connected with the first ethernet controller, the second ethernet physical layer chip being connected with the first ethernet physical layer chip；Each redundant link includes the second ethernet controller, the three-ethernet physical chip being connected with the second ethernet controller, the 4th ethernet physical layer chip being connected with three-ethernet physical chip；Link switching device, for when data transmission failure occurs for primary link, switching to and being carried out data transmission by a redundant link.The utility model reduces network connectivity fai_lure, reduces maintenance cost.
Description
Technical field
The utility model is related to network technique field, in particular it relates to a kind of ethernet link switching device.
Background technology
EPA attracts increasing manufacturing industry manufacturer because its have low cost, high intelligence, high scalability and
The ability of high actual effect.In the practical application of many industrial communication control fields, the environment at equipment is very complicated, user couple
The reliability of Ethernet, stability requirement also more and more higher.In order to ensure in communication control system, net drop or interchanger event
In the case of barrier, whole communication system will not paralyse, and improve network fault tolerance using ethernet link switching device mostly now
Ability.
Fig. 1 is the structured flowchart of existing ethernet redundancy link switching device.As shown in figure 1, existing Ethernet is superfluous
Remaining link switching device employs CPU (Central Processing Unit, central processing unit), CPLD (Complex
Programmable Logic Device, CPLD) module and ethernet physical layer chip PHY.Centre
Manage device and pass through MAC (multiple access channel, multiple access access channel) ports and GPIO (General Purpose
Input Output, universal input/output) port connection CPLD modules, CPLD modules pass through data wire and control line and distinguish again
Connect two ethernet physical layer chips.The shortcoming of the program is：If CPLD modules go wrong, then after CPLD modules
The device or system in face can not all be run, and are also easy to produce network connectivity fai_lure, added maintenance cost.
Utility model content
The main purpose of the utility model embodiment is to provide a kind of ethernet link switching device, to reduce network company
Failure is connect, maintenance cost is reduced.
To achieve these goals, the utility model embodiment provides a kind of ethernet link switching device, including：
One primary link and at least one redundant link；
The first ethernet physical layer core that primary link includes the first ethernet controller, is connected with the first ethernet controller
Piece, the second ethernet physical layer chip being connected with the first ethernet physical layer chip；
The three-ethernet thing that each redundant link includes the second ethernet controller, is connected with the second ethernet controller
Manage layer chip, the 4th ethernet physical layer chip being connected with three-ethernet physical chip；
Link switching device, for when data transmission failure occurs for primary link, switching to and entering line number by a redundant link
According to transmission.
In wherein a kind of embodiment, in addition to：It is connected to the first ethernet physical layer chip and the second Ethernet physics
Layer chip between the first ethernet network transformer, for match the first ethernet physical layer chip send request signal with
The level for the answer signal that second ethernet physical layer chip is sent.
In wherein a kind of embodiment, in addition to：It is connected to the first ethernet network transformer and the second Ethernet physics
Layer chip between the first RJ45 connectors, for transmit the first ethernet physical layer chip send request signal, second with
The answer signal that too net physical chip is sent.
In wherein a kind of embodiment, each redundant link is provided with the second ethernet network transformer, is connected to this superfluous
On remaining link between three-ethernet physical chip and the 4th ethernet physical layer chip, for matching on the redundant link
The level for the answer signal that the request signal and the 4th ethernet physical layer chip that three-ethernet physical chip is sent are sent.
In wherein a kind of embodiment, the 2nd RJ45 connectors are additionally provided with each redundant link, the redundancy chain is connected to
On road between the second ethernet network transformer and the 4th ethernet physical layer chip, for transmit on the redundant link the 3rd with
The answer signal that too request signal of net physical chip transmission, the 4th ethernet physical layer chip are sent.
In wherein a kind of embodiment, the second ethernet physical layer chip and at least one the 4th ethernet physical layer chip
Positioned at computer-internal.
In wherein a kind of embodiment, in addition to：The network switch, including multiple input ports, and and input port
One-to-one multiple output ports；
First RJ45 connectors on one of input port connection primary link of the network switch, with the input port pair
Second ethernet physical layer chip on the output port connection primary link answered；
Another multiple input ports of the network switch connect the 2nd RJ45 connectors on a redundant link respectively, and the plurality of
The one-to-one multiple output ports of input port connect the 4th ethernet physical layer chip on the redundant link respectively.
In wherein a kind of embodiment, the first ethernet physical layer chip specifically for：To the second ethernet physical layer core
Piece send request signal, when the answer signal of the second ethernet physical layer chip is not received in scheduled duration, to first with
Too net controller sends data transmission failure signal；
First ethernet controller specifically for：Data transmission failure signal is sent to link switching device；
Link switching device specifically for：After data transmission failure signal is received, it is determined that occurring data in primary link
Transmission fault, switches to and is carried out data transmission by a redundant link.
In wherein a kind of embodiment, the first ethernet physical layer chip also include register, for set to first with
Too net controller sends the time of data transmission failure signal.
In wherein a kind of embodiment, the time for sending data transmission failure signal is 0ms, 10 ± 2ms, 20 ± 2ms, 40
One of ± 2ms.
The ethernet link switching device of the utility model embodiment, including：One primary link and at least one redundancy chain
Road；Primary link include the first ethernet controller, be connected with the first ethernet controller the first ethernet physical layer chip, and
Second ethernet physical layer chip of the first ethernet physical layer chip connection；Each redundant link is controlled including the second Ethernet
Device, the three-ethernet physical chip being connected with the second ethernet controller, it is connected with three-ethernet physical chip
4th ethernet physical layer chip；Link switching device is switched to by a redundancy chain when data transmission failure occurs for primary link
Road carries out data transmission, and can complete link switching without CPLD modules, reduce network connectivity fai_lure, reduce and repair into
This.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
The accompanying drawing used required in description is briefly described, it should be apparent that, drawings in the following description are only that this practicality is new
Some embodiments of type, for those of ordinary skill in the art, without having to pay creative labor, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the structured flowchart of existing ethernet redundancy link switching device；
Fig. 2 is the structured flowchart of the utility model embodiment ethernet link switching device；
Fig. 3 is the structured flowchart of the first embodiment of the utility model embodiment ethernet link switching device；
Fig. 4 is the structured flowchart of the utility model embodiment ethernet link second of embodiment of switching device；
Fig. 5 is the structured flowchart of the third embodiment of the utility model embodiment ethernet link switching device；
Fig. 6 is the structured flowchart of the utility model embodiment ethernet link the 4th kind of embodiment of switching device.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belongs to the scope of the utility model protection.
In view of ethernet redundancy link switching device is also easy to produce network connectivity fai_lure at present, maintenance cost, this reality are added
A kind of ethernet link switching device is provided with new embodiment, including：One primary link and at least one redundant link；Main chain
Road include the first ethernet controller, be connected with the first ethernet controller the first ethernet physical layer chip, and first with
The second ethernet physical layer chip that too net physical chip is connected；Each redundant link include the second ethernet controller, with
Second ethernet controller connection three-ethernet physical chip, be connected with three-ethernet physical chip the 4th with
Too net physical chip；Link switching device is switched to and carried out by a redundant link when data transmission failure occurs for primary link
Data transfer, can complete link switching without CPLD modules, reduce network connectivity fai_lure, reduce maintenance cost.Below
The utility model is described in detail with reference to accompanying drawing.
Fig. 2 is the structured flowchart of the utility model embodiment ethernet link switching device.As shown in Fig. 2 ether network chain
Circuit switching device includes：One primary link and at least one redundant link；Primary link includes the first ethernet controller 11, with the
First ethernet physical layer chip 13 of one ethernet controller 11 connection, the be connected with the first ethernet physical layer chip 13
Two ethernet physical layer chips 15；Each redundant link includes the second ethernet controller 12 and the second ethernet controller 12
The three-ethernet physical chip 14 of connection, the 4th ethernet physical layer core being connected with three-ethernet physical chip 14
Piece 16；Link switching device 10, for when data transmission failure occurs for primary link, switching to and carrying out data by a redundant link
Transmission.
Wherein, the first ethernet controller 11 and the second ethernet controller 12 can use Gigabit Ethernet controller
ETSEC, by RGMII interfaces, (Reduced Gigabit Media Independent Interface, Gigabit Media is only
Vertical interface) carry out data transmission；First ethernet physical layer chip 13, the second ethernet physical layer chip 15, three-ethernet
The ethernet physical layer chip 16 of physical chip 14 and the 4th can use ethernet physical layer chip 88E1512.
In embodiment, the first ethernet physical layer chip 13 specifically for：Sent to the second ethernet physical layer chip 15
Request signal, when the answer signal of the second ethernet physical layer chip 15 is not received in scheduled duration, to the first Ethernet
Controller 11 sends data transmission failure signal；First ethernet controller 11 specifically for：Data transmission failure signal is sent out
Give link switching device 10；Link switching device 10 specifically for：After data transmission failure signal is received, it is determined that in master
Data transmission failure occurs for link, switches to and is carried out data transmission by a redundant link.
When being carried out data transmission by a redundant link, the three-ethernet physics on redundant link carried out data transmission
Layer chip 14 sends request signal to the 4th ethernet physical layer chip 16 on the redundant link, is not received in scheduled duration
To the 4th ethernet physical layer chip 16 answer signal when, to the second ethernet controller 12 send data transmission failure letter
Number；Data transmission failure signal is sent to link switching device 10 by the second ethernet controller 12；Link switching device 10 exists
Receive after data transmission failure signal, it is determined that data transmission failure occurs on the redundant link carried out data transmission, switch
To be carried out data transmission by another redundant link.
Fig. 3 is the structured flowchart of the first embodiment of the utility model embodiment ethernet link switching device.Such as Fig. 3 institutes
Show, ethernet link switching device can also include：It is connected to the first ethernet physical layer chip 13 and the second Ethernet physics
The first ethernet network transformer 30 between layer chip 15, for matching the request that the first ethernet physical layer chip 13 is sent
The level for the answer signal that signal and the second ethernet physical layer chip 15 are sent.
When it is implemented, the interface level of the first ethernet physical layer chip 13 and the second ethernet physical layer chip 15
Interface level is inconsistent, and now the second ethernet physical layer chip 15 can not receive the transmission of the first ethernet physical layer chip 13
Request signal, the first ethernet physical layer chip 13 can not also receive the response letter of the second ethernet physical layer chip 15 transmission
Number.First ethernet network transformer 30 can match the first ethernet physical layer chip 13 transmission request signal and second with
Too the level for the answer signal that net physical chip 15 is sent, makes the first ethernet physical layer chip 13 to receive by electricity
The answer signal of flat matching, the second ethernet physical layer chip 15 can also receive the request signal by electrical level match.
As shown in figure 3, being also provided with the second ethernet network transformer 31 on each redundant link, the redundancy is connected to
On link between the ethernet physical layer chip 16 of three-ethernet physical chip 14 and the 4th, for matching the redundant link
The answer signal that the request signal and the 4th ethernet physical layer chip 16 that three-ethernet physical chip 14 is sent are sent
Level.
Wherein, the first ethernet network transformer 30 and the second ethernet network transformer 31 can use Ethernet net
Network transformer HX5020NL, data are transmitted by MDI (Medium Dependent Interface, Media Dependent Interface).
Fig. 4 is the structured flowchart of the utility model embodiment ethernet link second of embodiment of switching device.Such as Fig. 4 institutes
Show, ethernet link switching device can also include：It is connected to the first ethernet network transformer 30 and the second Ethernet physics
The first RJ45 connectors 40 between layer chip 15, the request signal sent for the first ethernet physical layer chip 13 of transmission,
The answer signal that second ethernet physical layer chip 15 is sent.
As shown in figure 4, being additionally provided with the 2nd RJ45 connectors 41 on each redundant link, it is connected to second on the redundant link
Between the ethernet physical layer chip 16 of ethernet network transformer 31 and the 4th, for transmitting three-ethernet on the redundant link
The answer signal that request signal, the 4th ethernet physical layer chip 16 of the transmission of physical chip 14 are sent.
Fig. 5 is the structured flowchart of the third embodiment of the utility model embodiment ethernet link switching device.Such as Fig. 5 institutes
Show, ethernet link switching device can also include：The network switch 50, including multiple input ports, and and input port
One-to-one multiple output ports；First RJ45 connections on one of input port connection primary link of the network switch 50
Second ethernet physical layer chip 15 on device 40, corresponding with input port output port connection primary link, for strengthening the
The answer signal that request signal, the second ethernet physical layer chip 15 of one RJ45 connectors 40 transmission are sent；The network switch
50 another multiple input ports connect the 2nd RJ45 connectors 41 on a redundant link respectively, with a pair of the plurality of input port 1
The multiple output ports answered connect the 4th ethernet physical layer chip 16 on the redundant link respectively, for strengthening the redundant link
The answer signal that request signal, the 4th ethernet physical layer chip 16 of upper 2nd RJ45 connectors 41 transmission are sent.
Fig. 6 is the structured flowchart of the utility model embodiment ethernet link the 4th kind of embodiment of switching device.Such as Fig. 6 institutes
Show, the second ethernet physical layer chip 15 and at least one the 4th ethernet physical layer chip 16 can be located in computer 20
Portion.
When it is implemented, the first ethernet physical layer chip 13 can also include register, for setting to the first ether
Net controller 11 sends the time of data transmission failure signal.Wherein, the time for sending data transmission failure signal is to be
One of 0ms, 10 ± 2ms, 20 ± 2ms, 40 ± 2ms.Handoff links of ethernet link switching device in the prior art
Time needs more than 100ms, and the utility model can be by the time control of handoff links within 50ms, therefore, this practicality
The new time for substantially reducing switching ethernet link.
To sum up, the ethernet link switching device of the utility model embodiment, including：One primary link is superfluous with least one
Remaining link；The first ethernet physical layer core that primary link includes the first ethernet controller, is connected with the first ethernet controller
Piece, the second ethernet physical layer chip being connected with the first ethernet physical layer chip；Each redundant link includes the second ether
Net controller, the three-ethernet physical chip being connected with the second ethernet controller and three-ethernet physical chip
4th ethernet physical layer chip of connection；Link switching device is switched to by one when data transmission failure occurs for primary link
Redundant link carries out data transmission, and can complete link switching without CPLD modules, reduce network connectivity fai_lure, reduces dimension
Accomplish this.
The utility model can also will send data transmission failure by the register that is set in ethernet physical layer chip
The time of signal is set as one of 0ms, 10 ± 2ms, 20 ± 2ms, 40 ± 2ms, substantially reduces switching ether network chain
The time on road.
Particular embodiments described above, has carried out entering one to the purpose of this utility model, technical scheme and beneficial effect
Step is described in detail, be should be understood that and be the foregoing is only specific embodiment of the utility model, is not used to limit this
The protection domain of utility model, it is all within spirit of the present utility model and principle, any modification for being made, equivalent substitution, change
Enter, should be included within protection domain of the present utility model.
Claims (10)
1. a kind of ethernet link switching device, it is characterised in that including：
One primary link and at least one redundant link；
The first Ethernet physics that primary link includes the first ethernet controller (11), is connected with the first ethernet controller (11)
Layer chip (13), the second ethernet physical layer chip (15) being connected with the first ethernet physical layer chip (13)；
The 3rd ether that each redundant link includes the second ethernet controller (12), is connected with the second ethernet controller (12)
Net physical chip (14), the 4th ethernet physical layer chip (16) being connected with three-ethernet physical chip (14)；
Link switching device (10), for when data transmission failure occurs for primary link, switching to and entering line number by a redundant link
According to transmission.
2. ethernet link switching device according to claim 1, it is characterised in that also include：
It is connected to the first Ethernet between the first ethernet physical layer chip (13) and the second ethernet physical layer chip (15)
Network transformer (30), for matching request signal and the second Ethernet physics that the first ethernet physical layer chip (13) is sent
The level for the answer signal that layer chip (15) is sent.
3. ethernet link switching device according to claim 2, it is characterised in that also include：
The first RJ45 being connected between the first ethernet network transformer (30) and the second ethernet physical layer chip (15) connects
Device (40) is connect, for transmitting request signal, the second ethernet physical layer chip that the first ethernet physical layer chip (13) is sent
(15) answer signal sent.
4. ethernet link switching device according to claim 3, it is characterised in that
Each redundant link is provided with the second ethernet network transformer (31), is connected to three-ethernet thing on the redundant link
Manage between layer chip (14) and the 4th ethernet physical layer chip (16), for matching three-ethernet physics on the redundant link
The level for the answer signal that the request signal and the 4th ethernet physical layer chip (16) that layer chip (14) is sent are sent.
5. ethernet link switching device according to claim 4, it is characterised in that
The 2nd RJ45 connectors (41) are additionally provided with each redundant link, the second ethernet network on the redundant link is connected to and becomes
Between depressor (31) and the 4th ethernet physical layer chip (16), for transmitting three-ethernet physical layer core on the redundant link
The answer signal that request signal, the 4th ethernet physical layer chip (16) of piece (14) transmission are sent.
6. ethernet link switching device according to claim 1, it is characterised in that
Second ethernet physical layer chip (15) and at least one the 4th ethernet physical layer chip (16) are located at computer (20)
It is internal.
7. ethernet link switching device according to claim 5, it is characterised in that also include：
The network switch (50), including multiple input ports, and with the one-to-one multiple output ports of input port；
First RJ45 connectors (40) on one of input port connection primary link of the network switch (50), with the input
Second ethernet physical layer chip (15) on the corresponding output port connection primary link of mouth；
Another multiple input ports of the network switch (50) connect the 2nd RJ45 connectors (41) on a redundant link respectively, with this
The one-to-one multiple output ports of multiple input ports connect the 4th ethernet physical layer chip on the redundant link respectively
(16)。
8. ethernet link switching device according to claim 1, it is characterised in that
First ethernet physical layer chip (13) specifically for：Request signal is sent to the second ethernet physical layer chip (15),
When the answer signal of the second ethernet physical layer chip (15) is not received in scheduled duration, to the first ethernet controller
(11) data transmission failure signal is sent；
First ethernet controller (11) specifically for：Data transmission failure signal is sent to link switching device (10)；
Link switching device (10) specifically for：After data transmission failure signal is received, it is determined that occurring data in primary link
Transmission fault, switches to and is carried out data transmission by a redundant link.
9. ethernet link switching device according to claim 1, it is characterised in that：
First ethernet physical layer chip (13) also includes register, and number is sent for setting to the first ethernet controller (11)
According to the time of transmission failure signal.
10. ethernet link switching device according to claim 9, it is characterised in that：
It is one of 0ms, 10 ± 2ms, 20 ± 2ms, 40 ± 2ms to send the time of data transmission failure signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720130606.6U CN206433003U (en) | 2017-02-14 | 2017-02-14 | Ethernet link switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720130606.6U CN206433003U (en) | 2017-02-14 | 2017-02-14 | Ethernet link switching device |
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| Publication Number | Publication Date |
|---|---|
| CN206433003U true CN206433003U (en) | 2017-08-22 |
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ID=59592308
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| CN201720130606.6U Active CN206433003U (en) | 2017-02-14 | 2017-02-14 | Ethernet link switching device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108156098A (en) * | 2017-12-12 | 2018-06-12 | 交控科技股份有限公司 | A kind of communications network system based on POWERLINK |
| CN111158961A (en) * | 2019-12-28 | 2020-05-15 | 浪潮商用机器有限公司 | Cable redundancy device and cable redundancy method |
| CN112422386A (en) * | 2020-11-16 | 2021-02-26 | 中国运载火箭技术研究院 | Flight control system and communication method thereof |
| CN113589763A (en) * | 2020-08-04 | 2021-11-02 | 上海海得控制系统股份有限公司 | Communication control device and motion control system based on multiple Ethernet |
| CN113810317A (en) * | 2020-06-17 | 2021-12-17 | 默升科技集团有限公司 | Physical layer interface with redundant data paths |
| CN114401184A (en) * | 2021-12-07 | 2022-04-26 | 成都市联洲国际技术有限公司 | Network communication equipment and method, electronic equipment and medium |
-
2017
- 2017-02-14 CN CN201720130606.6U patent/CN206433003U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108156098A (en) * | 2017-12-12 | 2018-06-12 | 交控科技股份有限公司 | A kind of communications network system based on POWERLINK |
| CN111158961A (en) * | 2019-12-28 | 2020-05-15 | 浪潮商用机器有限公司 | Cable redundancy device and cable redundancy method |
| CN111158961B (en) * | 2019-12-28 | 2023-06-23 | 浪潮商用机器有限公司 | Cable redundancy device and cable redundancy method |
| CN113810317A (en) * | 2020-06-17 | 2021-12-17 | 默升科技集团有限公司 | Physical layer interface with redundant data paths |
| CN113589763A (en) * | 2020-08-04 | 2021-11-02 | 上海海得控制系统股份有限公司 | Communication control device and motion control system based on multiple Ethernet |
| CN112422386A (en) * | 2020-11-16 | 2021-02-26 | 中国运载火箭技术研究院 | Flight control system and communication method thereof |
| CN114401184A (en) * | 2021-12-07 | 2022-04-26 | 成都市联洲国际技术有限公司 | Network communication equipment and method, electronic equipment and medium |
| CN114401184B (en) * | 2021-12-07 | 2023-12-22 | 成都市联洲国际技术有限公司 | Network communication equipment and method thereof, electronic equipment and medium |
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