CN101651274B - Ethernet electricity switching integrated circuit board, device, method and system - Google Patents
Ethernet electricity switching integrated circuit board, device, method and system Download PDFInfo
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- CN101651274B CN101651274B CN2009101746278A CN200910174627A CN101651274B CN 101651274 B CN101651274 B CN 101651274B CN 2009101746278 A CN2009101746278 A CN 2009101746278A CN 200910174627 A CN200910174627 A CN 200910174627A CN 101651274 B CN101651274 B CN 101651274B
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Abstract
The invention discloses an Ethernet RJ45 switching integrated circuit board, a device, a method and a system in order to solve the problem that an Ethernet RJ45 cannot be automatically switched yet in the prior art. The method comprises the following steps: a network interface chip on the Ethernet RJ45 switching integrated circuit board of the device of the system is connected in series with the Ethernet RJ45 on the integrated circuit board; and a switching device is connected in series between the network interface chip and an RJ45 socket on the Ethernet RJ45 and controlled to be switched onor off by a controller for switching a primary state and an auxiliary state. If confirming that the integrated circuit board thereof is switched from the auxiliary state to the primary state, the controller sends an enabling signal to switch on the switching device; and if confirming that the integrated circuit board thereof is switched from the primary state to the auxiliary state, the controller sends a disabling signal to switch off the switching device. Because the controller confirms the state of the integrated circuit board and switches on or off the switching device so as to automatically realize the RJ45 switching.
Description
Technical field
The invention belongs to communication technical field, a kind of Ethernet electricity mouthful integrated circuit board, device, method system and bifurcated netting twine of switching of being used for particularly.
Background technology
Requiring of current reliability to network communicating system is increasingly high, for realizing the reliability guarantee of communication system, often adopts active and standby handoff technique in the prior art; Active and standby switching device is as shown in Figure 1, is provided with backboard 11 and the integrated circuit board of realizing said function 12 and integrated circuit board 13 in the equipment 10, under the normal condition; If integrated circuit board 12 is in the main state that uses and is the mainboard card; Then to be in stand-by state be main/standby board cards to integrated circuit board 13, when integrated circuit board 12 breaks down or receives switching command, switches to stand-by state; Integrated circuit board 13 switches to the main state that uses and as system service is provided; The active and standby integrated circuit board here is relative notion, and is in practical application, normally mutually redundant between integrated circuit board 12 and the integrated circuit board 13.Can realize the system of active and standby switching; As shown in Figure 2; Integrated circuit board 12 is the mainboard card, and integrated circuit board 13 is a main/standby board cards, and the Ethernet electricity of the Ethernet of opposite equip. 50 electricity mouthfuls 51 and integrated circuit board 12 mouthfuls 22 links to each other through netting twine; In active and standby handoff procedure, the Ethernet of a transmission electricity mouthful signal also need switch on the integrated circuit board 13 between opposite equip. 50 and the integrated circuit board 12 at present.In this process, desirable operation is artificially to pull out the netting twine that is inserted on the mainboard card Ethernet electricity mouth 22, is inserted on the main/standby board cards Ethernet electricity mouth 23 again.But in the reality; Because the running status of impossible 24 hours those mainboard cards of continual supervision of network manager; He does not just know when the mainboard card can go wrong; Also just can't be equipment plug netting twine timely, this can cause network carrying out before netting twine changes operation, be in always can't communication state.Therefore a kind of Ethernet electricity mouthful scheme that connects and break off that need not manual operation must be provided here.
Summary of the invention
Also can't realize the Ethernet electricity mouthful problem that connects and break off in the prior art automatically in order to solve; The embodiment of the invention provides simultaneously, and the embodiment of the invention provides a kind of Ethernet electricity mouthful switched system; Comprise, Ethernet electricity mouthful switching device shifter and opposite equip., an Ethernet electricity mouthful switching device shifter comprises: backboard; Be inserted with at least 2 integrated circuit boards on the backboard; Network interface chip on the integrated circuit board and the electricity of the Ethernet on the integrated circuit board mouthful serial connection are serially connected with switching device between the RJ45 socket on network interface chip and the Ethernet electricity mouth, and the opening and closing of switching device are controlled by the controller of implementing active and standby switching; If controller is confirmed the integrated circuit board at its place and is switched to the main state of using by stand-by state, then sends enable signal to switching device and open switching device; If controller is confirmed the integrated circuit board at its place and is switched to stand-by state by main with state; Then send disable signal stopcock device to switching device, the Ethernet electricity of opposite equip. mouthful is connected through the Ethernet electricity mouth at least two integrated circuit boards of bifurcated netting twine and Ethernet electricity mouthful switching device shifter.
A kind of Ethernet electricity mouthful integrated circuit board that switches that is used for; Network interface chip on the integrated circuit board and the electricity of the Ethernet on the integrated circuit board mouthful serial connection; Be serially connected with switching device between the RJ45 socket on network interface chip and the Ethernet electricity mouth; The opening and closing of switching device are controlled by the controller of implementing active and standby switching, switch to the main state of using if controller is confirmed the integrated circuit board at its place by stand-by state, then send enable signal to switching device and open switching device; If controller is confirmed the integrated circuit board at its place and is switched to stand-by state by main with state, then sends disable signal stopcock device to switching device.
The embodiment of the invention also provides a kind of Ethernet electricity mouthful switching device shifter simultaneously, and comprising: backboard is inserted with at least 2 above-mentioned integrated circuit boards on the backboard.
The embodiment of the invention also provides a kind of Ethernet electricity mouthful changing method simultaneously, and controller is monitored its place integrated circuit board activestandby state;
If controller is confirmed the integrated circuit board at its place and is switched to the main state of using by stand-by state; Then send enable signal and open switching device to switching device; The physical connection of the Ethernet electricity mouthful of realizing integrated circuit board and opposite equip. Ethernet electricity mouthful, said switching device are serially connected with between the RJ45 socket of network interface chip and the electric mouth of the Ethernet on the integrated circuit board on the integrated circuit board;
If controller is confirmed the integrated circuit board at its place and switched to stand-by state by main with state,, realize that electric mouthful of physics with opposite equip. Ethernet electricity mouth of Ethernet of integrated circuit board breaks off then to switching device transmission disable signal stopcock device.
Specific embodiments by the invention described above provides can be found out, confirms that just because of controller the state of the plate at its place opens or closes switching device, makes to realize that automatically Ethernet connects and breaks off for electric mouthful.
Description of drawings
Fig. 1 is an active and standby switching device structure chart in the prior art;
Fig. 2 is an Ethernet electricity mouthful switched system structure chart in the prior art;
The Ethernet electricity mouthful switched system structure chart that Fig. 3 provides for first embodiment provided by the invention;
Fig. 4 A, Fig. 4 B, Fig. 5 A, Fig. 5 B are the integrated circuit board structure chart that is used for mouthful switching of Ethernet electricity that first embodiment provided by the invention provides;
The bifurcated net line structure figure that Fig. 6 provides for first embodiment provided by the invention;
The length of cable sketch map that Fig. 7 provides for first embodiment provided by the invention;
The method flow diagram that Fig. 8 provides for first embodiment provided by the invention.
Embodiment
In order to realize mouthful switching of Ethernet electricity automatically; Ethernet electricity mouthful switched system as shown in Figure 3; Be provided with backboard 11 in the equipment 10; Be inserted with integrated circuit board 12 and integrated circuit board 13 on the backboard 11, the Ethernet electricity of the Ethernet electricity on the integrated circuit board 12 mouthfuls 22 and main/standby board cards Ethernet electricity mouthfuls 23 through Y-track 40 and opposite equip. 50 mouthfuls 51 is connected, and wherein the joint 41 of Y-track 40 is connected with Ethernet electricity mouth 51, joint 42 is connected with the electric mouth 22 of Ethernet with joint 43 and the electric mouth 23 of Ethernet and is connected.
And, guarantee better signal integrity for fear of signal conflict.The Ethernet electricity mouth 51 of opposite equip. 50 can only physically be connected with the Ethernet electricity mouth 22 of integrated circuit board 12 simultaneously, and must physically break off with electric mouthful 23 1 ends of the Ethernet of integrated circuit board 13.Present embodiment is through placing on integrated circuit board 12 and integrated circuit board 13 that switching device 24,25 is realized opening and being connected of the Ethernet electricity mouth 51 of shutoff and opposite equip. 50.
First embodiment provided by the invention is a kind of Ethernet electricity mouthful integrated circuit board that switches that is used for, and in order to ensure signal integrity, must turn-off physical connection here, and can not adopt the mode of software switching-off signal output.Ethernet interface that has such as gigabit ethernet interface are signaling interfaces very at a high speed, must guarantee the good signal integrality, otherwise the situation that ethernet link can't normal communication can occur.
Be used for the Ethernet electricity mouthful integrated circuit board that switches shown in Fig. 4 A, Fig. 4 B; Comprise Ethernet interface 22 on the integrated circuit board 12; Integrated circuit board 12 is the mainboard card; Integrated circuit board 13 comprises Ethernet interface 23, and Ethernet interface 23 is a main/standby board cards, switching device 24 of serial connection between network isolation transformer on the Ethernet interface 22 221 and RJ45 socket 222.Opening and turn-off by the controller 26 of implementing active and standby switching of switching device 24 controlled.In active and standby handoff procedure, controller 26 finds that the integrated circuit board 12 that oneself belongs to switches to stand-by state by main with state, sends forbidding disable signals to switching device 24, and switching device 24 is closed so; Switching device 25 of serial connection between network isolation transformer on the Ethernet interface 23 231 and RJ45 socket 232.Opening and turn-off by the controller 27 of implementing active and standby switching of switching device 25 controlled.If controller 27 is found the integrated circuit board 13 that oneself belongs to and switches to the main state of using by stand-by state that send to switching device 25 and enable the enable signal, switching device 25 is closed so.Network interface chip 28 and network isolation transformer 221 serial connections, the controller of present embodiment adopts CPLD, adopts CPLD to control can to guarantee and under the situation that software collapses fully, also can guarantee the successful realization of switching.
Shown in Fig. 5 A, Fig. 5 B; Be with the scheme difference of Fig. 4 A, Fig. 4 B; On integrated circuit board 12, comprise network interface chip 28; Switching device 24 of serial connection comprises network interface chip 29 between network interface chip 28 and the network isolation transformer 221 on integrated circuit board 13, switching device 25 of serial connection between network interface chip 29 and the network isolation transformer 231.2 schemes in conjunction with above-mentioned can know that switching device should be serially connected with between network interface chip and the RJ45 socket.
In order to realize mouthful switching of Ethernet electricity; At least comprise 2 above-mentioned integrated circuit boards in Ethernet electricity mouthful switching device shifter realizing active and standby switching, when three above-mentioned integrated circuit boards, wherein 1 is made as main using; 2 are made as subsequent use in addition; When the going wrong of main usefulness, 2 subsequent use one of them are made as main usefulness, the Ethernet electricity mouthful switches with aforementioned identical.
Ethernet electricity mouth for having is very high like the speed of gigabit Ethernet mouth, directly network signal line one-to-two is connected the mode that promptly adopts the bifurcated netting twine, can't realize remote normal communication.Therefore, the loss of the design of the cable signal integrity that must the signal bifurcated be caused remedies.The bifurcated netting twine is as shown in Figure 6, all seals in build-out resistor on 4 pairs of twisted-pair feeders with joint 41, joint 42 and joint 43 each self-corresponding branch of bifurcated netting twine 40 here, and the signal integrity performance is improved, and netting twine length generally all is not less than 10M.Joint 41
Therefore in order to ensure signal integrity, require and lot of experiment results according to signal integrity, the making of cable must be followed following rule:
1) as shown in Figure 7, Y-track and integrated circuit board at first will guarantee AC length=BC length; And the length of AC and BC length must be less than 1/10 of ACD and BCD length, and wherein A is a switching device 24, and B is a switching device 25, and C is a bifurcation, and D is the network isolation transformer on the Ethernet electricity mouth 51.The position of switching device 24 and switching device 25 is shown in Fig. 4 A, Fig. 4 B at this moment.
Perhaps A is a network isolation transformer 221, and B is a network isolation transformer 231, and C is a bifurcation, and D is the network isolation transformer on the Ethernet electricity mouth 51.The position of switching device 24 and switching device 25 is shown in Fig. 5 A, Fig. 5 B at this moment.
2) for the selection of build-out resistor,, can not satisfy the inhibition effect of disturbing for signal and build-out resistor is too little because build-out resistor is crossed conference and caused signal attenuation excessive.Through a large amount of experiments, confirmed build-out resistor under the situation in 60 ± 5 Europe, the interference of signal is minimum, can reach desirable communication effect.
Second embodiment provided by the invention is a kind of Ethernet electricity mouthful method of switching, and method flow is as shown in Figure 8, comprising:
Step 101: controller is monitored the activestandby state of its place integrated circuit board.
Step 102: judge that as if controller integrated circuit board switches to stand-by state by main with state, then execution in step 103, if controller judges that integrated circuit board switches to the master by stand-by state and uses state, then execution in step 104.
Step 103: controller sends disable signal closes switch device to switching device, and the Ethernet electricity mouth of controller place integrated circuit board breaks off with opposite equip. Ethernet electricity effected physics.
Step 104: controller sends enable signal to switching device and opens switching device, the Ethernet electricity mouth of controller place integrated circuit board and opposite equip. Ethernet electricity effected physical connection.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, belong within the scope of claim of the present invention and equivalent technologies thereof if of the present invention these are revised with modification, then the present invention also is intended to comprise these changes and modification interior.
Claims (7)
1. Ethernet electricity mouthful switched system; It is characterized in that, comprise, Ethernet electricity mouthful switching device shifter and opposite equip.; An Ethernet electricity mouthful switching device shifter comprises: backboard; Be inserted with at least 2 integrated circuit boards on the backboard, network interface chip on the integrated circuit board and the electricity of the Ethernet on the integrated circuit board mouthful serial connection are serially connected with network isolation transformer between the RJ45 socket on network interface chip and the Ethernet electricity mouth; Switching device is serially connected with between the network isolation transformer and RJ45 socket on the Ethernet electricity mouth; The opening and closing of switching device are controlled by the controller of implementing active and standby switching, switch to the main state of using if controller is confirmed the integrated circuit board at its place by stand-by state, then send enable signal to switching device and open switching device; If controller is confirmed the integrated circuit board at its place and is switched to stand-by state by main with state; Then send disable signal stopcock device to switching device, the Ethernet electricity of opposite equip. mouthful is connected through the Ethernet electricity mouth at least two integrated circuit boards of bifurcated netting twine and Ethernet electricity mouthful switching device shifter.
2. the system of claim 1; It is characterized in that; Said Ethernet electricity mouth is a gigabit Ethernet electricity mouth; Distance between switching device on the integrated circuit board and the bifurcated netting twine bifurcation is less than 1/10 of the distance of the network isolation transformer of the Ethernet of switching device on the integrated circuit board and opposite equip. electricity mouthful.
3. system as claimed in claim 2 is characterized in that the bifurcated netting twine comprises at least 3 branches, is connected in series the build-out resistor in 60 ± 5 Europe on 4 pairs of twisted-pair feeders of each branch.
4. the system of claim 1 is characterized in that, controller is a complex programmable logic device (CPLD).
5. one kind is used for the Ethernet electricity mouthful integrated circuit board that switches; Network interface chip on the integrated circuit board and the electricity of the Ethernet on the integrated circuit board mouthful serial connection; It is characterized in that; Be serially connected with network isolation transformer between the RJ45 socket on network interface chip and the Ethernet electricity mouth, switching device is serially connected with between the network isolation transformer and RJ45 socket on the Ethernet electricity mouth, and the opening and closing of switching device are controlled by the controller of implementing active and standby switching; If controller is confirmed the integrated circuit board at its place and is switched to the main state of using by stand-by state, then sends enable signal to switching device and open switching device; If controller is confirmed the integrated circuit board at its place and is switched to stand-by state by main with state, then sends disable signal stopcock device to switching device.
6. an Ethernet electricity mouthful switching device shifter is characterized in that comprise: backboard is inserted with at least 2 integrated circuit boards as claimed in claim 5 on the backboard.
7. an Ethernet electricity mouthful changing method is characterized in that controller belongs to integrated circuit board activestandby state as claimed in claim 5 to it and monitors;
If controller is confirmed the integrated circuit board at its place and is switched to the main state of using by stand-by state; Then send enable signal and open switching device to switching device; The physical connection of the Ethernet electricity mouthful of realizing integrated circuit board and opposite equip. Ethernet electricity mouthful, said switching device are serially connected with between the RJ45 socket of network interface chip and the electric mouth of the Ethernet on the integrated circuit board on the integrated circuit board;
If controller is confirmed the integrated circuit board at its place and switched to stand-by state by main with state,, realize that electric mouthful of physics with opposite equip. Ethernet electricity mouth of Ethernet of integrated circuit board breaks off then to switching device transmission disable signal stopcock device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101746278A CN101651274B (en) | 2009-09-18 | 2009-09-18 | Ethernet electricity switching integrated circuit board, device, method and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101746278A CN101651274B (en) | 2009-09-18 | 2009-09-18 | Ethernet electricity switching integrated circuit board, device, method and system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101651274A CN101651274A (en) | 2010-02-17 |
| CN101651274B true CN101651274B (en) | 2012-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009101746278A Expired - Fee Related CN101651274B (en) | 2009-09-18 | 2009-09-18 | Ethernet electricity switching integrated circuit board, device, method and system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104506350A (en) * | 2014-12-18 | 2015-04-08 | 姜斯平 | Gigabit Ethernet switching device |
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| CN101651274A (en) | 2010-02-17 |
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