CN101291201A - Heart beat information transmission system and method - Google Patents
Heart beat information transmission system and method Download PDFInfo
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- CN101291201A CN101291201A CNA2007101787955A CN200710178795A CN101291201A CN 101291201 A CN101291201 A CN 101291201A CN A2007101787955 A CNA2007101787955 A CN A2007101787955A CN 200710178795 A CN200710178795 A CN 200710178795A CN 101291201 A CN101291201 A CN 101291201A
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Abstract
The invention relates to a system for transmitting heartbeat information, comprising a first device used for managing and configuring a system line card, and a second device used for managing and configuring the line card to replace the first device when the first device has failures, wherein, the second device is a backup device of the first device; the first device and the second device are connected through a master-slave control channel and a master-slave data channel; and the first device and the second device are also connected through a heartbeat information channel which is used for transferring level format heartbeat information. The invention also provides a method for transmitting the heartbeat information. The system and the method for transmitting the heartbeat information have the heartbeat information and data messages separately transmitted through adding the heartbeat information channel between two devices, so that the two devices can receive the heartbeat information from each other in real-time and prevent the heartbeat information from losing or being destroyed, thereby avoiding the misoperation to the devices caused by lost or destroyed heartbeat information.
Description
Technical field
The present invention relates to the Ethernet data communications field, relate in particular to a kind of heart beat information transmission system and method.
Background technology
The heartbeat line is the physical channel that is used to transmit heartbeat message between the two-server, and two-server first server and second server are for example arranged, and first server is a working machine, and second server is a backup machine, connects by a radical center wire jumper between them.Generally on server, all are furnished with two network interface cards, wherein a communication that is specifically designed between two-server.Be installed in software on the server and monitor the other side's running status by the heartbeat line in real time.In case first server of working is because various hardware faults, cause system to break down as power-fail, critical piece inefficacy or boot disk inefficacy etc., the heartbeat line can inform mutually redundant second server, and second server can be devoted oneself to work immediately.Can on to greatest extent, guarantee the normal operation of network like this.This is also referred to as " heartbeat detection ".Usually the heartbeat line is mainly finished by Ethernet transmission heartbeat data message.What transmit on traditional heartbeat line is a kind of heartbeat data message.The information of transmitting between the two-server of notifying the other side's operating state each other is called " heartbeat message ", as its name suggests, this heartbeat message is just as people's heartbeat, if the heartbeat message that sends over from second server that first server is received does not within a certain period of time change within a certain period of time, can judge that then second server work is undesired.
Figure 1 shows that prior art rack system configuration schematic diagram, main management plate 11 is for being used for the integrated circuit board of administration configuration ply-yarn drill 13 in the rack system, from management board 12 is the backup management integrated circuit board that is used for administration configuration ply-yarn drill 13 the rack system, main management plate 11 is by main management passage 17 administration configuration ply-yarn drills 13, pass through from management channels 16 administration configuration ply-yarn drills 13 from management board 12, main management plate 11 and control information from transmitting each other by principal and subordinate's control channel 14 between the management board 12, the reset signal of principal and subordinate's management board for example, principal and subordinate's management board have signal and a principal and subordinate's arbitrating signals etc., principal and subordinate's data channel 15 is main management plates 11 and from carrying out the passage of data passes between the management board 12.Main management plate 11 and simultaneously from also transmitting each other heartbeat message between the management board 12 by principal and subordinate's data channel 15, whether this heartbeat message is the data message of main management plate 11 and the form appointed mutually from management board 12, inform working properly each other by this data message.If find that from management board 12 heartbeat message of main management plate 11 is undesired, then switch by initiating the principal and subordinate from management board 12, switch to the behavior that main management plate the rack system is in charge of whole system from management board 12, main management plate 11 and back up important system information mutually by principal and subordinate's data channel between the management board 12 is taking place when the principal and subordinate is switched system to be worked as early as possible normally.In the rack system, the main management plate is in order to guarantee from the management board operate as normal, assurance can be finished the master-slave back-up function in real time from management board, the main management plate must be received the information working properly from management board in real time, on the other hand, whether must detect the main management plate in real time from management board working properly, so that in time initiating the principal and subordinate when the main management plate goes wrong switches and takes over the main management plate and finish collection and management to system information, principal and subordinate's management board is in order to reach mutual monitoring the other side purpose working properly, principal and subordinate's management board transmission information mutually is used to prove that self is working properly, proves own working properly so principal and subordinate's management board needs to transmit mutually heartbeat message.
Be illustrated in figure 2 as in the prior art rack system heartbeat message transmission schematic diagram between principal and subordinate's management board, main programmable logic device 112 in the main management plate 11 and from management board 12, mainly finish the election of master slave relation between principal and subordinate's management board from the principal and subordinate's arbitration line 18 between the programmable logic device, when system starts working, judge that by principal and subordinate's arbitration line 18 who is the main management plate between principal and subordinate's management board, who is from management board, hypothesis 11 is the main management plate among Fig. 2, and 12 is from management board.Master reset signal line 116 for the main programmable logic device 112 in the main management plate 11 to from management board 12, sending the passage of reset signals from management system 121, be passage from management board 12 from reseting signal line 126 from main management system's 111 transmission reset signals of programmable logic device 122 to main management plate 11.Main data line 115 is main management system 111 to the passage that sends data from management system 121, be from the passage of management system 121 to main management system's 111 transmission data from data wire 125.Main interrupt signal line 114 is the passage of main programmable logic device 112 to main management system's 111 transmission interrupting informations, is to the passage that sends interrupting informations from management system 121 from programmable logic device 122 from interrupt signal line 124.Main bus 113 is used to transmit the instruction and data between main management system 111 and the main programmable logic device 112, is used to transmit from management system 121 with from the instruction and data between the programmable logic device 122 from bus 123.
Elaborate in the prior art rack shown in Figure 2 system principle of heartbeat message transmission between principal and subordinate's management board below.
Data message and heartbeat message message shared data line in the prior art, the heartbeat message message is mixed in the data message and transmits, just the form of data message is different with the form of heartbeat message message, as shown in Figure 3, Figure 3 shows that prior art data message and heartbeat message message mixed transport schematic diagram.The main management plate sends certain format by main data line in the time of certain intervals heartbeat message message is to from management board, and in the time of agreement, wait for from management board and passing through from the heartbeat message message of the same format of data wire transmission, if the main management plate is not received the heartbeat message message that sends from management board in the time of agreement, then the main management plate just thinks undesired from management board work, the main management system produces reset signal, and main programmable logic device sends reset signal by the master reset signal alignment from management system after receiving this reset signal.If the main management plate is received the heartbeat message message that sends from management board in the time of agreement, then the main management plate thinks working properly from management board.Receive and send, receive and confirm that the process of heartbeat message message sends, receives with the main management plate and confirm that the process of heartbeat message message is identical from management board, repeat no more herein.Transmitting-receiving heartbeat message message is a process of confirming mutually between principal and subordinate's management board.
As can be seen, there is following problem in the method for heartbeat message transmission between above-described principal and subordinate's management board:
(1) these data can be abandoned by the other side if in principal and subordinate's management board one data that sends to the other side are damaged in transmission course, and because heartbeat message message and the shared data passage of data message, it is data message or heartbeat message message that principal and subordinate's management board all can't detect what abandon, if what abandon is the heartbeat message message, the side that send the heartbeat message message this moment can not resend the heartbeat message message, and a side who receives the heartbeat message message can not notify transmit leg to resend yet, if can not receive the heartbeat message message, the recipient can think mistakenly that transmit leg work is undesired, and then transmit leg is carried out wrong reset operation by reseting signal line, in fact this moment, transmit leg was an operate as normal, just had been dropped owing to the heartbeat message message.In addition, the recipient is when receiving data message, sometimes must do corresponding processing to the data message, might cause that in processing procedure the heartbeat message message is handled the recipient of causing not prompt enough and can't in time receive the heartbeat message message, thereby cause the recipient that the transmit leg of operate as normal is initiated wrong reset operation.
(2) side in principal and subordinate's management board can't judge the size that receives the buffering area of heartbeat message in the other side's management system when sending the heartbeat message message, the quantity of heartbeat message message surpasses the capacity of the other side's buffering area, then the heartbeat message message can be abandoned by the other side, and principal and subordinate's management board all can't detect this heartbeat message message and has been dropped, and the phenomenon that the transmit leg of operate as normal is resetted mistakenly just can take place again.
Interruption is a kind of internal mechanism that CPU (Central Processing Units is called for short CPU) is handled inside or external event in real time.When certain inside or external event generation, the interrupt system of CPU will force CPU to suspend the program of carrying out, then go to carry out the processing of interrupt event, after Interrupt Process finishes, return interrupted program place again, continue to carry out.The source that causes the reason of interruption or send interrupt requests is interrupt source.According to the difference of interrupt source, can be divided into hardware interrupts and software interrupt to interruption, and hardware interrupts is divided into external interrupt and internal interrupt two classes.External interrupt signal is directly imported by the hardware pin of CPU usually.Internal interrupt signal is produced by CPU inter-process module usually.Generally the priority of external interrupt is higher than internal interrupt.
Interrupt nesting is meant when CPU is carrying out an interrupt routine, there is the higher interruption person of another priority to propose interrupt requests, at this moment can temporarily stop the program of the lower interrupt source of the current rank of carrying out, go to handle the higher interrupt source program of rank, pending finishing turns back to the interrupt routine that has been interrupted again and continues to carry out.
Summary of the invention
The objective of the invention is to overcome the defective of prior art, a kind of heart beat information transmission system and method are provided, can be with heartbeat message between two equipment and separately transmission of data message, two equipment can receive the heartbeat message of the other side's level signal form in real time, have avoided because the faulty operation that heartbeat message can't real-time Transmission causes.
The invention provides a kind of heart beat information transmission system, comprise and be used for the system interior lines are sticked into first equipment of line pipe reason and configuration and are used for replacing when described first equipment breaks down first equipment system interior lines to be sticked into second equipment of line pipe reason and configuration, described second equipment is the alternate device of first equipment, be provided with the principal and subordinate's control channel that is used to control signal between first equipment that transmits and second equipment between described first equipment and second equipment and be used to principal and subordinate's data channel of the data between first equipment that transmits and second equipment, also be provided with the heartbeat message passage of the heartbeat message of the level signal form that is used to first equipment that transmits and second equipment between described first equipment and second equipment.
The present invention also provides a kind of heartbeat message transmission method, comprising:
First management system in step 1, first equipment is controlled first heartbeat message that first programmable logic device produces a level signal form, and by the first heartbeat signal line described first heartbeat message is sent to second programmable logic device in second equipment;
Second programmable logic device in step 2, second equipment produces one second interrupt signal after receiving described first heartbeat message, second management system is controlled second heartbeat message that second programmable logic device produces a level signal form after receiving this second interrupt signal, and by the second heartbeat signal line described second heartbeat message is sent to first programmable logic device;
Heart beat information transmission system provided by the invention and method, by between two equipment, adding the heartbeat message passage of a transmission level form heartbeat message, with heartbeat message and separately transmission of data message, make two equipment can receive the heartbeat message of level signal form each other in real time and can not occur heartbeat message lose or destroyed, and owing to be to produce by hardware mode to interrupt, system can in time enter the heartbeat message handling procedure, loses or destroyed and can not in time be handled the misoperation to equipment that causes owing to heartbeat message with regard to having avoided like this.
Also in conjunction with the accompanying drawings the present invention is described in further detail below by specific embodiment.
Description of drawings
Figure 1 shows that prior art rack system configuration schematic diagram;
Figure 2 shows that in the prior art rack system heartbeat message transmission schematic diagram between principal and subordinate's management board;
Figure 3 shows that prior art data message and heartbeat message message mixed transport schematic diagram;
Figure 4 shows that heart beat information transmission system embodiment one schematic diagram of the present invention;
Figure 5 shows that heart beat information transmission system embodiment two schematic diagrames of the present invention;
Figure 6 shows that heart beat information transmission system equipment of the present invention produces signal schematic representation.
Embodiment
Figure 4 shows that heart beat information transmission system embodiment one schematic diagram of the present invention, two equipment that intercom mutually in the ethernet communication system, first equipment 3 and second equipment 4, these two equipment wherein have one to be main equipment, be used for being responsible for the management and the configuration of ethernet communication system ply-yarn drill, the alternate device of another this equipment of equipment, it is slave unit, be used for when main equipment breaks down substituting main equipment the ply-yarn drill of system is managed and disposes, these two equipment are backup system data information each other mutually.Between these two equipment three data channel are arranged, be respectively principal and subordinate's control channel 5, the principal and subordinate's data channel 6 that is used for transmission data between these two equipment that is used to transmit the control information between these two equipment, the heartbeat message passage 7 that is used for transmitting between these two equipment heartbeat message, wherein principal and subordinate's control channel 5 can be the physical signal lines that directly links to each other, principal and subordinate's data channel 6 is an ethernet channel, and heartbeat message passage 7 can be the hardware signal line that can transmit level signal.Present embodiment one system works principle is: when system starts working, first equipment 3 and second equipment 4 determine that by principal and subordinate's control channel 5 which platform equipment is main equipment, which platform is a slave unit, for convenience of description, suppose that the main equipment that principal and subordinate's control channel 5 is determined is first equipment 3, slave unit is second equipment 4, principal and subordinate's data channel 6 is used to the transfer of data between first equipment 3 of realizing and second equipment 4, heartbeat message passage 7 is used for the transmission of heartbeat message between first equipment 3 and second equipment 4, because heartbeat message is by two different data channel transmission, so the heartbeat message between these two equipment can be level signal with data in the present embodiment; First equipment 3 sends heartbeat message by heartbeat message passage 7 to second equipment 4, and wait receives the heartbeat message that second equipment 4 sends over simultaneously, if in the time of agreement, do not receive the heartbeat message that second equipment 4 sends over, then first equipment 3 judges that second equipment 4 breaks down, and first equipment 3 carries out reset operation by 5 pairs second equipment of principal and subordinate's control channel 4; If first equipment 3 has been received the heartbeat message that second equipment 4 sends in the time of agreement, then first equipment 3 resends heartbeat message.
Present embodiment is many heartbeat message passages between two equipment compared with prior art, this heartbeat message passage can be realized by the hardware signal line mode of transmitting level signal, owing to be the hardware signal line that directly links to each other, the data of transmitting in the heartbeat message passage are not data message but level signal, such two equipment just can receive the other side's heartbeat message in real time, and can not occur that heartbeat message is dropped or the ruined phenomenon of heartbeat message, also just can not occur owing to not receiving the misoperation that heartbeat message causes.
Figure 5 shows that heart beat information transmission system embodiment two schematic diagrames of the present invention, first equipment 3 comprises first management system 31 and first programmable logic device 32, second equipment 4 comprises second management system 41 and second programmable logic device 42, first management system 31 is transmitted data by first data wire 35 to second management system 41, second management system 41 is 31 system transmission data by second data wire 45 to first management, first programmable logic device 32 transmits reset signals by first reseting signal line 36 to second management system 41, second programmable logic device 42 transmits reset signals by second reseting signal line 46 to first management system 31, the first interrupt signal line 34 is used for first programmable logic device 32 and sends interrupting information to first management system 31, the second interrupt signal line 44 is used for second programmable logic device 42 and sends interrupting information to second management system 2 41, first bus 33 is used to transmit the instruction and data between first management system 31 and first programmable logic device 32, second bus 43 is used to transmit the instruction and data between second management system 41 and second programmable logic device 42, the first heartbeat line 37 is used for first programmable logic device 32 and sends heartbeat message to second programmable logic device 42, and the second heartbeat line 47 is used for second programmable logic device 42 and sends heartbeat message to first programmable logic device 32.Wherein, the effect of first management system 31 and second management system 41 is similar to CPU, so first management system 31 and second management system 41 can be regarded the CPU of a broad sense as.
Describe present embodiment two system operation principle below in detail
Figure 6 shows that heart beat information transmission system equipment of the present invention produces signal schematic representation, system starts working, first management system 31 in first equipment 3 produces a heartbeat message by first bus, 33 controls, first programmable logic device 32, heartbeat message is the signal that a trailing edge triggers in the present embodiment, to be assumed to be all that trailing edge triggers (can certainly be that high level triggering or rising edge or low level trigger for heartbeat message and interrupting information in the present embodiment, present embodiment is that example is come principle of specification with the trailing edge triggering only), first equipment 3 produces first heartbeat message 501, connect by wire jumper in fundamental disagreement between first programmable logic device 32 and second programmable logic device 42, second programmable logic device 42 in second equipment 4 produces one second interrupt signal 502 after receiving first heartbeat message 501, second management system 41 begins to enter the heartbeat message handling procedure after receiving this second interrupt signal 502 by the second interrupt signal line 44, because it is the highest to set the interrupt priority level of second programmable logic device, 42 generations in second management system 41, so second management system 41 can preferentially be carried out the heartbeat message handling procedure, second management system 41 produces one second heartbeat message 503 by second control bus, 43 controls, second programmable logic device 42, first programmable logic device 32 in first equipment 3 produces one first interrupt signal 504 after receiving second heartbeat message 503, first management system 31 begins to enter the heartbeat message handling procedure after receiving this first interrupt signal 504 by the first interrupt signal line 34, because it is the highest to set the interrupt priority level of first programmable logic device, 32 generations in first management system 31, so first management system 31 can preferentially be carried out the heartbeat message handling procedure; First management system 31 in first equipment 3 can start countdown when producing one first heartbeat message 501 by first bus 33 control, first programmable logic device 32, if can receive second heartbeat message 503 that second programmable logic device 32 sends in the time of agreement, first management system 31 can produce second first heartbeat message 505 by control first programmable logic device 32 so; Second management system 41 in second equipment 4 can start countdown when producing one second heartbeat message 503 by second bus 43 control, second programmable logic device 42, if can receive second first heartbeat message 505 that first programmable logic device 32 sends in the time of agreement, second management system 41 can produce second second heartbeat message by control second programmable logic device 42 so.If second programmable logic device 42 has been received second first heartbeat message 505 that first programmable logic device 32 sends in the time of agreement, but cause second programmable logic device 42 can't produce one second heartbeat message owing to certain fault occurs, first programmable logic device 32 is not received second heartbeat message that second programmable logic device 42 sends in the time of agreement so, at this moment, first programmable logic device 32 will produce one first interrupt signal 506, first management system 31 can produce one first reset signal 507 after receiving this first interrupt signal 506, first programmable logic device 32 sends to second management system 41 with this first reset signal 507 after receiving this first reset signal, and second equipment is carried out reset operation.After second equipment was carried out the reset operation certain hour, first equipment produced one first heartbeat message 508 again." certain hour " can decide according to the needs of system handles herein, can be several microseconds or several seconds.Equally, if second programmable logic device 42 is not received first heartbeat message 505 that first programmable logic device 32 sends in the countdown time that sends the 503 back startups of second heartbeat message, then second management system 41 will produce one second reset signal, second programmable logic device 42 is transferred to first management system 32 with this reset signal by second reseting signal line, first management system is carried out reset operation, resend second heartbeat message after second management system 41 is waited for certain hour.The process that sends and receive heartbeat message between follow-up first equipment and second equipment mutually is similar, repeats no more herein.
The above first programmable logic device is sending the countdown time that starts behind second heartbeat message and can be several milliseconds or several seconds sending the countdown time that starts behind first heartbeat message and second programmable logic device, requires to determine according to the data processing of system.First management system supports all that with second management system stage casing is nested, because it is the highest to set the interrupt priority level of first programmable logic device in first management system, first management system might be carried out other interrupt routine when first programmable logic device initiate to interrupt, if do not support interrupt nesting then can't jump out from current interrupt routine and carry out the interruption that first programmable logic device is initiated.Second management system also is like this.
Present embodiment two is realized the real-time Transmission of heartbeat message between two equipment by the hardware physical connection, heartbeat message and data message are separated transmission, having overcome prior art data message and heartbeat message mixed transport causes heartbeat message to abandon or the destroyed defective that causes the equipment misoperation easily, and, the priority of interrupt that programmable logic device produces in equipment is set to the highest, can in time handle, avoid because heartbeat message is handled the untimely misoperation to equipment that causes to heartbeat message.
The present invention also provides a kind of heartbeat message transmission method, can comprise the steps:
First management system in step 1, first equipment is controlled first heartbeat message that first programmable logic device produces a level signal form, and by the first heartbeat signal line described first heartbeat message is sent to second programmable logic device in second equipment;
Second programmable logic device in step 2, second equipment produces one second interrupt signal after receiving described first heartbeat message, second management system is controlled second heartbeat message that second programmable logic device produces a level signal form after receiving this second interrupt signal, and by the second heartbeat signal line described second heartbeat message is sent to first programmable logic device;
Heartbeat message transmission method provided by the invention, compared with prior art, difference is, heartbeat message is mixed in transmission with data message in the prior art, heartbeat message is to be produced by the mode of the management system in the equipment by software, and in the heartbeat message transmission method of the present invention, heartbeat message is produced by management system control programmable logic device, heartbeat message among the present invention is a kind of information of level signal form, heartbeat message and data message can be separated transmission in this way, overcome prior art and can not accurately do not received the defective that causes the misoperation of equipment owing to heartbeat message.And, produce to interrupt by hardware mode in this method, make that the system in the equipment can in time enter the heartbeat message handling procedure, avoided owing to heartbeat message can not in time be handled the defective to the misoperation of equipment that causes.
Need to prove that heart beat information transmission system of the present invention preferably is applicable to two equipment distance situation more in short-term, if the distance between two equipment then uses system of the present invention can obtain preferable effect in one meter.If the distance between two equipment is greater than one meter, then because common level signal is transistor-transistor logic integrated circuit (Transistor-Transistor Logic, be called for short TTL) level, receiving terminal is not easy to receive correct level signal during the length Distance Transmission.Certainly heartbeat message also can be the level signal of other level standards, can adopt hardware level signal transmission line correspondingly to come the transmission level signal.
It should be noted that at last: above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (10)
1, a kind of heart beat information transmission system, comprise and be used for the system interior lines are sticked into first equipment of line pipe reason and configuration and are used for replacing when described first equipment breaks down first equipment system interior lines to be sticked into second equipment of line pipe reason and configuration, described second equipment is the alternate device of first equipment, be provided with the principal and subordinate's control channel that is used to control signal between first equipment that transmits and second equipment between described first equipment and second equipment and be used to principal and subordinate's data channel of the data between first equipment that transmits and second equipment, it is characterized in that, also be provided with the heartbeat message passage of the heartbeat message of the level signal form that is used to first equipment that transmits and second equipment between described first equipment and second equipment.
2, heart beat information transmission system according to claim 1 is characterized in that, described heartbeat message passage comprises:
The first heartbeat signal line is used for described first equipment sends heartbeat message from described level signal form to second equipment; And
The second heartbeat signal line is used for described second equipment sends heartbeat message from described level signal form to first equipment.
3, heart beat information transmission system according to claim 2 is characterized in that, described principal and subordinate's control channel comprises:
Principal and subordinate's arbitration line, which is responsible for the system interior lines are sticked into line pipe reason and configuration for main equipment to determine first equipment and second equipment when being used for starting working in system;
First reseting signal line is used for described first equipment to the second device transmission reset signal; And
Second reseting signal line is used for described second equipment to the first device transmission reset signal.
4, heart beat information transmission system according to claim 3 is characterized in that, described principal and subordinate's data channel comprises:
First data wire is used for described first equipment to the second equipment sending data message; And
Second data wire is used for described second equipment to the described first equipment sending data message.
5, heart beat information transmission system according to claim 4, it is characterized in that, described first equipment comprises first management system and first programmable logic device, second equipment comprises second management system and second programmable logic device, be connected with first bus by the first interrupt signal line between described first management system and first programmable logic device, be connected with second bus by the second interrupt signal line between described second management system and second programmable logic device, connect by first data wire and second data wire between first management system and second management system, connect by second reseting signal line between first management system and second programmable logic device, connect by first reseting signal line between second management system and first programmable logic device, pass through principal and subordinate's arbitration line between first programmable logic device and second programmable logic device, the first heartbeat signal line and the second heartbeat signal line connect.
According to the described heart beat information transmission system of arbitrary claim in the claim 2～5, it is characterized in that 6, the described first heartbeat signal line and the second heartbeat signal line are the hardware signal line that is used for the transmission level signal.
7, heart beat information transmission system according to claim 6 is characterized in that, the length of the described first heartbeat signal line and the second heartbeat signal line is less than one meter.
8, a kind of heartbeat message transmission method is characterized in that, comprising:
First management system in step 1, first equipment is controlled first heartbeat message that first programmable logic device produces a level signal form, and by the first heartbeat signal line described first heartbeat message is sent to second programmable logic device in second equipment;
Second programmable logic device in step 2, second equipment produces one second interrupt signal after receiving described first heartbeat message, second management system is controlled second heartbeat message that second programmable logic device produces a level signal form after receiving this second interrupt signal, and by the second heartbeat signal line described second heartbeat message is sent to first programmable logic device;
Step 3, first programmable logic device produce one first interrupt signal after receiving described second heartbeat message, first management system continues execution in step 1 after receiving this first interrupt signal.
9, heartbeat message transmission method according to claim 8 is characterized in that, also comprises: first management system in first equipment starts countdown when controlling first programmable logic device and produce first heartbeat message; If first programmable logic device is not received second heartbeat message that second programmable logic device sends in the countdown time, then first programmable logic device sends reset signal to second management system, and second management system is carried out reset operation.
10, heartbeat message transmission method according to claim 8 is characterized in that, also comprises: second management system in second equipment starts countdown when controlling second programmable logic device and produce second heartbeat message; If second programmable logic device is not received first heartbeat message that first programmable logic device sends in the countdown time, then second programmable logic device sends reset signal to first management system, and first management system is carried out reset operation.
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| CNA2007101787955A CN101291201A (en) | 2007-12-05 | 2007-12-05 | Heart beat information transmission system and method |
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| CNA2007101787955A CN101291201A (en) | 2007-12-05 | 2007-12-05 | Heart beat information transmission system and method |
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| CN107070731A (en) * | 2017-06-22 | 2017-08-18 | 迈普通信技术股份有限公司 | A kind of principal and subordinate's referee method and system |
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| CN103152262A (en) * | 2013-02-25 | 2013-06-12 | 华为技术有限公司 | Method and equipment for connection establishment |
| CN107241295A (en) * | 2016-03-28 | 2017-10-10 | 阿里巴巴集团控股有限公司 | Encryption management method and device, control cluster |
| CN107241267A (en) * | 2016-03-28 | 2017-10-10 | 华为技术有限公司 | A kind of OAM switching methods and the network equipment |
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| CN107995018A (en) * | 2016-10-27 | 2018-05-04 | 迈普通信技术股份有限公司 | Fault detection method, LPU and distributed network communication equipment |
| CN107070731A (en) * | 2017-06-22 | 2017-08-18 | 迈普通信技术股份有限公司 | A kind of principal and subordinate's referee method and system |
| CN107508771A (en) * | 2017-09-18 | 2017-12-22 | 北京百卓网络技术有限公司 | communication equipment with standby control function |
| CN110336701A (en) * | 2019-07-11 | 2019-10-15 | 山东超越数控电子股份有限公司 | A kind of high density two-way server management method and system |
| CN110336701B (en) * | 2019-07-11 | 2022-03-01 | 超越科技股份有限公司 | High-density two-way server management method and system |
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