CN101505234A - System and method for inter-board communication - Google Patents
System and method for inter-board communication Download PDFInfo
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Abstract
The invention discloses a system and a method for inter-plate communication. The method for the inter-plate communication comprises the following steps: registering inter-plate communication channels between single plates, establishing routing lists of the inter-plate communication respectively, setting the priority of the channels in the routing list, and selecting the channel with the highest priority as a default channel to perform communication between the single plates; and after the default channel in the routing list is replaced, using the replaced default channel between the single plates to perform the inter-plate communication. The system and the method not only achieve the aim of selecting the channels dynamically for the inter-plate communication between the single plates, but also select the channel with the shortest route-consuming time by setting the priority as the default channel to perform the inter-plate communication, thus the efficiency of the inter-plate communication is improved.
Description
Technical field
The present invention relates to network communication field, relate in particular to a kind of in network communication field the system and method for the communication between plates of Dynamic Selection communication port.
Background technology
In the communications field, in rack-mount unit, generally can design a master control borad or be reserved with one to several slave control board in order to overall situation control, monitor the regular traffic work of all other business boards, other slave control board.For convenience, hereinafter the business board except master control borad, slave control board are referred to as controlled plate.When need not to specialize, master control borad, perhaps controlled plate all abbreviates veneer as.
Master control borad is realized by communication between plates with the communication between the controlled plate.At present, the industry communication between plates generally is fixing certain hardware interface of selecting, and on this basis by standard protocol stack, perhaps finishes communication between the veneer merchandiser plate by self-defining communication protocol.
See also Fig. 1, it is that plate between the prior art veneer is asked communication scheme.
When master control borad or controlled plate work is undesired even crash when causing communication disruption, system designer wishes to detect problematic veneer rapidly by communication between plates, thereby the normal function of fast this veneer of quick-recovery makes that the influence to the user drops to minimum level.
Yet, because the passage of hardware interface is generally all more fixing, can not Dynamic Selection, if also promptly passage hurries or channel failure, normal communication between plates will be affected transceive data that can not be in good time, the erroneous judgement of the opposing party in may causing thus communicating by letter, thereby take recovery means some predefineds, may be more consuming time, as restart veneer, thereby cause the service disconnection that veneer is unnecessary.
Summary of the invention
For solving the problem that communication between plates between the veneer can not the Dynamic Selection passage, be necessary to provide the system of the communication between plates of the dynamic selector channel of a kind of energy.
In addition, also be necessary to provide a kind of method of above-mentioned communication between plates.
The system of communication between plates of the present invention comprises master control borad and controlled plate, described master control borad comprises at least one master control borad passage, described controlled plate comprises at least one controlled plate passage, described master control borad and controlled plate are set up routing table respectively, and in described routing table, expend time in path used during according to channel registration, the set path minimum passage that expends time in is a default channel, described master control borad and controlled plate connect by default channel separately, carry out communication between plates, after default channel was replaced, described master control borad and controlled plate used the default channel after replacing it to carry out communication between plates.
In said system, described routing table comprises the channel number and the passage corresponding priorities of passage, described passage corresponding priorities expends time in and is provided with in used path during according to described channel registration, and expend time in described path when identical, the channel number size that compares passage, determine the passage corresponding priorities, the priority of described default channel is the highest.
In said system, described passage is made up of hardware corridor and software passage.
The method of communication between plates of the present invention may further comprise the steps:
The passage of the communication between plates of registration between the veneer, and set up the routing table of communication between plates respectively is provided with the priority of passage in described routing table, and to choose the highest passage of priority be default channel, carries out the communication between the described veneer;
After default channel in the described routing table is replaced, use the default channel after replacing it to carry out communication between plates between the described veneer.
In said method, the passage of the communication between plates between the described registration veneer comprises: pass through route exploration message between the mutual transmission board of passage separately between the described veneer, and judge whether to return route reply message between corresponding plate, if, described passage is working properly, otherwise described passage work is improper.
In said method, described passage sends route exploration message between described plate, to the shortest time that receives corresponding described recovery message, when being defined as described channel registration expend time in used path, described priority is according to the setting that expends time in of described path, described default channel is that the shortest passage expends time in the path in expending time in the path of all passages of each veneer.
In said method, the passage of the communication between plates between the described registration veneer comprises: the passage of the communication between plates between registration master control borad and the controlled plate, and, described master control borad sends route exploration message between described plate at least one controlled plate, and described controlled plate only sends route exploration message between described plate to described master control borad.
In said method, the priority that passage is set in described routing table comprises: according to the path of all passages of each veneer size order that expends time in, the priority of passage is set, if the path is expended time in equal, the channel number size that compares passage again, channel number is more little, and the priority of passage is high more.
In said method, default channel in the described routing table is replaced finger: pass through route exploration message between the default channel transmission board between the described veneer, do not receive route reply message between corresponding plate in the default time, the default channel in the described routing table is replaced.
Compared with prior art, the system and method for communication between plates of the present invention is by setting up the routing table of communication between plates respectively between the veneer, the priority of passage is set in described routing table, and to choose the highest passage of priority be default channel, carry out the communication between the described veneer, after default channel in described routing table is replaced, use the default channel after replacing it to carry out communication between plates between the described veneer, not only realized the purpose of the communication between plates Dynamic Selection passage between the veneer, also select the path the shortest passage that expends time in to carry out communication between plates, thereby improved the efficient of communication between plates as default channel by priority is set.
After the detailed description of reading embodiment of the present invention in conjunction with the accompanying drawings, it is clearer that characteristics of the present invention and advantage will become.
Description of drawings
Fig. 1 is the communication between plates schematic diagram between the prior art veneer;
Fig. 2 is the system module schematic diagram of communication between plates of the present invention;
Fig. 3 is the message format that the system of communication between plates of the present invention uses;
Fig. 4 is the method flow schematic diagram of communication between plates of the present invention.
Embodiment
Describe below in conjunction with the system and method for accompanying drawing communication between plates of the present invention.Hereinafter, hardware corridor is meant the hardware resource of transceive data, and the software passage is meant the software resource that transceive data is carried out preliminary treatment.In addition, describe conveniently for the back, general designation has realized that the software of communication means of the present invention is the communication between plates module.
See also Fig. 2, it is the system module schematic diagram of communication between plates of the present invention.
Plate asks that communication system comprises: master control borad A, controlled plate B and controlled plate C.Master control borad A, controlled plate B and controlled plate C interconnect.Master control borad A comprises software passage D1, D2, D3 and hardware corridor E1, E2.Controlled plate B comprises software passage F1, F2 and hardware corridor H1, H2.Controlled plate C comprises software passage I1, I2 and hardware corridor J1, J2.The software passage number that can carry on each hardware corridor is not limit, so hardware corridor has multiple with the software combination of channels on the veneer.Each the software passage of each veneer and the combination of each hardware corridor are referred to as passage.Wherein, numeral 1,2,3 is numbering.The software passage D1 of master control borad A adopts Internet protocol, and (D2 and D3 adopt the custom protocol stack for Internet Protocol, IP) protocol stack, and hardware corridor E1 is a network interface, and E2 is other ports.The software passage F1 of controlled plate B adopts IP stack, and F2 adopts the custom protocol stack, and hardware corridor H1 is a network interface, and H2 is other ports.The software passage I1 of controlled plate C adopts IP stack, and I2 adopts the custom protocol stack, and hardware corridor J1 and J2 are network interface.Here, suppose master control borad A, controlled plate B, the hardware corridor of controlled plate C have carried separately all software passages on the veneer.
See also Fig. 3, it is the message format of system's use of communication between plates of the present invention.
The data of communication between plates are divided into two kinds: a kind of be keep link, keep route message between the plate of routing iinformation (Inter-Board Route Packet, IBRP); Another kind be transmit data message between the plate of normal data (Inter-Board Data Packet, IBDP)
Wherein, IBRP divides two kinds: type of message is that the plate of 0x4 asks the way by probe messages (IBRDP) and type of message is that the plate of 0x5 is asked the way by reply message (IBRRP).IBRRP is the response to IBRDP.First veneer sign is the source veneer among the IBRP, and last veneer sign is the purpose veneer.The message-ending character of IBRDP and IBRRP is masked as EOT (0x4).
If there is not data message to send between the veneer merchandiser plate, when promptly not having IBDP to send yet, then can timed sending IBRP message to keep link; When having IBDP to send, IBRP is attached to transmission in the IBDP message.
The type of message of IBDP is 0x35.If IBDP has comprised IBRP, then the sign that whether comprises the route message of IBDP is put 1, and the back is followed by route heading between plate, and the message-ending character that plate is asked the way by heading is 0x3.
See also Fig. 4, it is the method flow schematic diagram of communication between plates of the present invention.
The method of communication between plates of the present invention may further comprise the steps:
The passage of step S1, the communication between plates of registration between the veneer, and set up the routing table of communication between plates respectively is provided with the priority of passage in described routing table, and to choose the highest passage of priority be default channel, carries out the communication between the described veneer;
In master control borad one side, master control borad sends IBRDP to controlled plate, and controlled plate is responded the IBRRP message to master control borad, and master control borad upgrades routing table according to the IBRRP message that receives.
Controlled buttress is provided with the priority weights of an acquiescence according to the attribute of hardware corridor to hardware corridor, and same, the software passage also has the priority weights of an acquiescence, so the default priority weights of passage are that hardware corridor is followed software passage priority weights sum.When the hardware corridor of controlled plate is received the IBRDP of master control borad, if the purpose veneer sign is this veneer, then on all software passages of this hardware corridor carrying, broadcast this message, the purpose software channel number of IBRDP simultaneously, purpose hardware corridor number are updated to corresponding software channel number, hardware corridor number; If the purpose veneer is not this plate, select to give this message on the highest passage of priority weights.IBRDP is ultimately delivered to the communication between plates module through the software passage.If the IBRDP message is to send to this veneer, then upgrade routing table according to the IBRDP that receives earlier, in routing table, select the IBRRP of passage loopback that priority is the highest in a second with interior then; If not sending to this plate, single board information in the middle of adding in message IBRDP selects the passage that priority is the highest in the routing table to transmit this message then.
The update strategy of controlled plate routing table: the priority weights that adopt acquiescence in the time of system start-up.In one second, to receiving the passage of IBRDP message, the priority weights subtract one, up to reaching priority weights maximum 0; To not receiving the passage of IBRDP message, the priority weights add one, up to reaching priority weights minimum value 255.
Therefore controlled plate can't calculate the path of passage and expend because do not send the IBRDP message, expends so the judgement of priority-level no longer is the path, but directly uses the priority weights of passage.
Illustrate with the communication between master control borad A and the controlled plate B:
By software passage D1 and the hardware corridor E1 of master control borad A, send IBRDP to controlled plate B.In IBRDP, the source veneer sign is master control borad A, and source single plate hardware channel number is E1, and source board software channel number is D1, and the purpose veneer sign is controlled plate B, and purpose single plate hardware channel number and software channel number are unknown.
By software passage D1 and the hardware corridor E1 of master control borad A, send IBRDP to controlled plate B, may directly send to controlled plate B, also may send to controlled plate C.
Controlled plate B resolves the message that receives, if the type of message is 0x4, is IBRDP, and the IBRDP that sends over for master control borad A, and whether the purpose veneer sign that reexamines IBRDP is controlled plate B.
If the purpose veneer sign is controlled plate B, the type of then revising this message is IBRRP, simultaneously the source veneer number is changed into controlled plate B, and the purpose veneer number changes master control borad A into.If send IBRRP by the software passage H1 and the hardware corridor F1 of controlled board B, be F1 correspondingly then with source single plate hardware channel number, source board software channel number is H1, re-sends to master control borad A.Similarly,, then correspondingly change source single plate hardware channel number and source board software channel number, re-send to master control borad A if send IBRRP by other software passage and the hardware corridor combination of controlled board B.
If the purpose veneer sign is not controlled plate B, but all veneer numbers of process are no more than 3 in the middle of the IBRDP, and then adding controlled plate B in IBRDP is the transfer veneer, and enclose employed hardware corridor number, software channel number, transmit this message then; If all veneer numbers of middle process surpass 3, then abandon this message.
Master control borad A resolves the message receive, if the type of message is 0x5, is IBRRP, and whether reexamine message purpose veneer number is master control borad A.
If the purpose veneer number is master control borad A, illustrate that then master control borad A hardware corridor E1, software passage D1 can lead to, also be that described passage is working properly, and relatively to send IBRDP from hardware corridor E1, the software passage D1 of master control borad A number be the shortest time of all IBRRP of master control borad A to the purpose veneer that receives, be defined as described hardware corridor E1, software passage D1 the combination channel registration the time used path expend time in, insert the path of routing table again and expend option.
If the purpose veneer number is not master control borad A, but all veneer numbers of middle process are no more than 3, and then adding own veneer in message number is the transfer veneer, and encloses hardware corridor, software passage, transmits this data then; If all veneer numbers of middle process surpass 3, then abandon this message.
Set up the routing table of the communication between plates of master control borad A and controlled plate B.As shown in the table:
Table one
| Channel number | The software passage | Hardware corridor | (ms) expended in the path | Priority |
| 1 | D1 | E1 | 2 | 0 (default channel) |
| 4 | D2 | E2 | 2 | 1 (passage to be selected) |
| 5 | D3 | E1 | 3 | 1 |
| 2 | D1 | E2 | 4 | 3 |
| 6 | D3 | E2 | 5 | 4 |
| 3 | D2 | E1 | -1 | -1 (unavailable) |
In above-mentioned table, channel number is determined with the numbering of software passage jointly according to the numbering of hardware corridor.Channel number in the hardware corridor number more little then routing table is more little, and hardware corridor number is the same, comparison software channel number more then, and the software channel number is more little, and then the channel number in the routing table is more little.
In addition, if the passage of certain hardware corridor, software combination of channels is sending one second of IBRDP message with the interior message that do not receive, need to continue to send, the continuous IBRDP message that sends for three times does not all have to respond, think that then this passage is obstructed, as the passage in the table one 3, and corresponding path is expended and is-1, priority is-1, represents unavailable.
In Table 1, priority is that 0 route table items is the highest default channel of priority, and promptly passage 1.The path is expended under the same situation, and the more little priority of channel number is high more.Master control borad A communicates by default channel and other veneer.
In like manner, set up the routing table of the communication between plates of master control borad A and controlled plate C.As shown in the table:
Table two
| Channel number | The software passage | Hardware corridor | (ms) expended in the path | Priority |
| 2 | D1 | E2 | 2 | 0 (default channel) |
| 4 | D2 | E2 | 2 | 1 (passage to be selected) |
| 5 | D3 | E1 | 3 | 1 |
| 3 | D2 | E1 | 4 | 3 |
| 6 | D3 | E2 | 5 | 4 |
| 1 | D1 | E1 | 7 | 5 |
Master control borad A can send IBRDP to controlled plate B and controlled plate C respectively, and receive the IBRRP that sends from controlled plate B and controlled plate C, thereby set up the routing table of the communication between plates of the routing table of communication between plates of master control borad A and controlled plate B and master control borad A and controlled plate C respectively.
Differently be that controlled plate B upgrades the process of its routing table.Controlled buttress is at first set up a default router table according to the default priority weights of passage.Suppose that hardware corridor H1 is the gigabit network interface, the priority weights of giving acquiescence are 0; Hardware corridor H2 is a 100-M network Ethernet, and the priority weights of giving acquiescence are 1; Software passage F1 is the custom protocol stack, and the priority weights of giving acquiescence are 0, and F2 is an IP stack, and the priority weights of giving acquiescence are 1.It all is 0 value that the path of all passages is expended, and therefore the default router table of setting up is as shown in Table 3:
Table three
| Channel number | The software passage | Hardware corridor | (ms) expended in the path | Priority |
| 1 | F1 | H1 | 0 | 0 (default channel) |
| 2 | F2 | H1 | 0 | 1 (passage to be selected) |
| 3 | F1 | H2 | 0 | 1 |
| 4 | F2 | H2 | 0 | 2 |
When master control borad A sends the IBRDP message for controlled plate B, the hardware corridor H1 of controlled plate B has received three messages, the channel number of message is respectively E1 and D1, and E1 and D2, therefore E1 and D3 enclose purpose hardware corridor H1 earlier, and at protocol stack F1, the F2 of H1 carrying the IBRDP message that each receives are broadcasted respectively, the IBRDP of broadcasting has enclosed F1 respectively, the software channel number of F2.The plate of controlled plate B is asked communication module from software passage F1, and F2 has received three IBRDP messages respectively, therefore upgrades routing table according to the IBRDP that receives.H2 has received three IBRDP messages, and the channel number of message is respectively E2 and D1, and E2 and D2, E2 and D3, broadcast respectively at protocol stack F1, the F2 of H1 carrying after enclosing purpose hardware corridor H1, Guang Bo IBRDP encloses F1 respectively simultaneously, the software channel number of F2.The plate of controlled plate B is asked communication module from software passage F1, and F2 has received the IBRDP message respectively, upgrades routing table according to the IBRDP that receives.Routing table after upgrading is as shown in the table:
Table four
| Channel number | The software passage | Hardware corridor | (ms) expended in the path | Priority |
| 1 | F1 | H1 | 0 | 0 (default channel) |
| 2 | F2 | H1 | 0 | 0 (passage to be selected) |
| 3 | F1 | H2 | 0 | 0 |
| 4 | F2 | H2 | 0 | 0 |
Upgraded after the routing table, list item is forward more in the routing table, and priority is high more, and when the priority weights equated, the more little priority of channel number was high more.A second with interior be E1 to source channels, the IBRDP message of D1 is chosen in passage 1 loopback IBRRP message, in like manner source channels is the IBRDP of E1, D2, and source channels is that the IBRDP of E1, D3 is chosen in passage 1 loopback message IBRRP; For source channels is E2, D1, and the message of E2, D2 and E2, D3 is chosen in passage 3 loopback message IBRRP.The routing table of controlled like this plate B has just formally been set up, and does not just adopt default channel with the IBDP of IBRRP information as long as routing table is set up transmission afterwards.
Controlled plate receives that master control borad sends when having carried the IBDP message of IBRDP information, on hardware corridor, do not broadcast this IBDP message, send IBDP message but be carried in the selection routing table on the software passage that priority is the highest on this hardware corridor, and upgrade routing table.
Suppose that controlled plate B has received an IBDP message at hardware corridor H2, and carried IBRDP information that according to routing table, the IBDP message is finally by delivering to the communication between plates module on the software passage F1, and will upgrade routing table such as table five, the IBRRP of loopback simultaneously message.If there is IBDP to send, and the passage of selecting is passage 3, then IBRRP is carried at loopback in the IBDP, otherwise loopback IBRRP message separately.
Table five
| Channel number | The software passage | Hardware corridor | (ms) expended in the path | Priority |
| 3 | F1 | H2 | 0 | 0 (default channel) |
| 1 | F1 | H1 | 0 | 1 (passage to be selected) |
| 2 | F2 | H1 | 0 | 1 |
| 4 | F2 | H2 | 0 | 1 |
Carry out data transmit-receive by default channel separately between master control borad A and the controlled plate B, promptly carry out communication between plates by the software passage D1 of master control borad A and software passage F1 and the hardware corridor H1 of hardware corridor E1 and controlled plate B.
In like manner, set up the routing table of the communication between plates of controlled plate C.As shown in the table:
Table six
| Channel number | The software passage | Hardware corridor | (ms) expended in the path | Priority |
| 1 | I1 | J1 | 4 | 0 (default channel) |
| 4 | I2 | J2 | 8 | 1 (passage to be selected) |
| 3 | I2 | J1 | 8 | 2 |
| 2 | I1 | J2 | 9 | 3 |
Carry out data transmit-receive by default channel separately between master control borad A and the controlled plate C, promptly carry out communication between plates by the software passage D1 of master control borad A and software passage I1 and the hardware corridor J1 of hardware corridor E2 and controlled plate C.
Above-mentioned all routing tables all need dynamically to keep after setting up.
Be example with table one below:
Each second, master control borad A can be in routing table in two passages that priority is the highest, promptly sends IBRDP and keep communication between plates in default channel and passage to be selected.There is IBDP to send if default channel is current, then the IBRDP content is included among the IBDP and transmits.That is, when sending IBDP, if there is IBRDP to need to send, IBRDP can be placed on transmission among the IBDP, what send the IBDP selection is the highest passage of priority, therefore need at first to detect whether the passage that needs send IBRDP information is the highest passage of current priority, can not in IBDP, carry, need transmission separately if not this IBRDP then.
Controlled plate B receives IBRDP, perhaps includes IBRDP in the IBDP that receives, and sends IBRRP to master control borad A.If the current IBDP of having of controlled plate B needs to transmit, just IBRRP is included among the IBDP and transmits, otherwise, need to transmit separately IBRRP, to help keeping of routing table.
If within a predefined second, master control borad A receives IBRRP, perhaps in the IBDP that receives, include IBRRP, two default channel that priority is the highest of expression master control borad A and passage to be selected and controlled plate B communication between plates are normal, whether reexamine has the path to expend passage for-1 in the routing table, if have, the maximum that is set to be had inside the current routing table is expended in this path increase progressively 1.In Table 1, the path of passage 3 correspondences is expended and is-1.The path is expended again and be configured to the maximum that current routing table the inside had and add 1, its corresponding priorities correspondingly is made as the lowest class, and promptly 5.As shown in the table:
Table seven
| Channel number | The software passage | Hardware corridor | (ms) expended in the path | Priority |
| 1 | D1 | E1 | 2 | 0 (default channel) |
| 4 | D2 | E2 | 2 | 1 (passage to be selected) |
| 5 | D3 | E1 | 3 | 1 |
| 2 | D1 | E2 | 4 | 3 |
| 6 | D3 | E2 | 5 | 4 |
| 3 | D2 | E1 | 20 | 5 |
If within a second, in default channel and the passage to be selected one, perhaps two all do not receive IBRRP, in expression two default channel that priority is the highest and the passage to be selected one, perhaps two improper, just pairing path in this routing table is expended and be changed to-1, and expend the priority that determines passage again according to the path in the routing table.Select two passages that priority is the highest to continue to send IBRDP afterwards, repeat said process.
If all passages all can not normally receive IBRRP, think that then this veneer disconnects with the link of purpose veneer, all attempts carrying out again the registration of passage then every 10 seconds.
In addition, if the new tunnel registration is arranged, as added new hardware, perhaps increased new protocol stack, need to add new route table items toward the routing table the inside, combination of channels shown in each list item all needs to send the IBRDP message, receives that IBRRP upgrades routing table afterwards, and IBDP sends and will send according to new default channel next time.
If there is passage to need deletion, also should delete corresponding list item in the routing table simultaneously.After the respective table entry deletion, the channel number in the routing table is renumberd, simultaneously the priority that comprises route table items of Geng Xining.If default channel needs deletion, passage then to be selected is set to default channel; Default channel, passage to be selected is simultaneously deleted, then selectes default channel with passage to be selected according to the priority that renumbers.
After default channel in step S2, the described routing table is replaced, use the default channel after replacing it to carry out communication between plates between the described veneer.
If passage is busy or channel failure, after routing table recomputates,,, then carries out passage and switch if current default channel will be replaced by new default channel according to calculating.Stop using old default channel to use new default channel instead immediately and send data; If the receiving terminal of passage has data not receive fully, keep old default channel certain hour, default situations is 100 milliseconds, forces after exceeding schedule time to switch, all data all receive data by the receiving terminal of new default channel.
Compared with prior art, the system and method for communication between plates of the present invention is by setting up the routing table of communication between plates respectively between the veneer, the priority of passage is set in described routing table, and to choose the highest passage of priority be default channel, carry out the communication between the described veneer, after default channel in described routing table is replaced, use the default channel after replacing it to carry out communication between plates between the described veneer, not only realized the purpose of the communication between plates Dynamic Selection passage between the veneer, also select the path the shortest passage that expends time in to carry out communication between plates, thereby improved the efficient of communication between plates as default channel by priority is set.
Only be preferred case study on implementation of the present invention below, be not limited to the present invention, for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1, a kind of system of communication between plates, it comprises master control borad and controlled plate, described master control borad comprises at least one master control borad passage, described controlled plate comprises at least one controlled plate passage, it is characterized in that, described master control borad and controlled plate are set up routing table respectively, and in described routing table, expend time in path used during according to channel registration, the set path minimum passage that expends time in is a default channel, and described master control borad and controlled plate connect by default channel separately, carry out communication between plates, after default channel was replaced, described master control borad and controlled plate used the default channel after replacing it to carry out communication between plates.
2, the system of communication between plates according to claim 1, it is characterized in that, described routing table comprises the channel number and the passage corresponding priorities of passage, described passage corresponding priorities expends time in and is provided with in used path during according to described channel registration, and expend time in described path when identical, relatively the channel number size of passage is determined the passage corresponding priorities, and the priority of described default channel is the highest.
3, the system of communication between plates according to claim 1 is characterized in that, described passage is made up of hardware corridor and software passage.
4, a kind of method of communication between plates is characterized in that, may further comprise the steps:
The passage of the communication between plates of registration between the veneer, and set up the routing table of communication between plates respectively is provided with the priority of passage in described routing table, and to choose the highest passage of priority be default channel, carries out the communication between the described veneer;
After default channel in the described routing table is replaced, use the default channel after replacing it to carry out communication between plates between the described veneer.
5, the method for communication between plates according to claim 4, it is characterized in that, the passage of the communication between plates between the described registration veneer comprises: pass through route exploration message between the mutual transmission board of passage separately between the described veneer, and judge whether to return route reply message between corresponding plate, if, described passage is working properly, otherwise described passage work is improper.
6, the method for communication between plates according to claim 5, it is characterized in that, described passage sends route exploration message between described plate, to the shortest time that receives corresponding described recovery message, when being defined as described channel registration expend time in used path, described priority is according to the setting that expends time in of described path, and described default channel is for during the path of all passages of each veneer expends time in, and the shortest passage expends time in the path.
7, the method for communication between plates according to claim 5, it is characterized in that, the passage of the communication between plates between the described registration veneer comprises: the passage of the communication between plates between registration master control borad and the controlled plate, and, described master control borad sends route exploration message between described plate at least one controlled plate, and described controlled plate only sends route exploration message between described plate to described master control borad.
8, the method for communication between plates according to claim 5, it is characterized in that, the priority that passage is set in described routing table comprises: according to the path of all passages of each veneer size order that expends time in, the priority of passage is set, if the path is expended time in equal, compare the channel number size of passage again, channel number is more little, and the priority of passage is high more.
9, the method for communication between plates according to claim 4, it is characterized in that, default channel in the described routing table is replaced finger: pass through route exploration message between the default channel transmission board between the described veneer, do not receive route reply message between corresponding plate in the default time, the default channel in the described routing table is replaced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910105781XA CN101505234B (en) | 2009-03-17 | 2009-03-17 | System and method for inter-board communication |
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| CN101505234A true CN101505234A (en) | 2009-08-12 |
| CN101505234B CN101505234B (en) | 2012-01-11 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101986594A (en) * | 2010-11-18 | 2011-03-16 | 中兴通讯股份有限公司 | Method and device for realizing communication between single boards |
| CN102571383A (en) * | 2010-12-16 | 2012-07-11 | 腾讯科技（深圳）有限公司 | Access control method and system |
| CN103118063A (en) * | 2012-11-19 | 2013-05-22 | 苏州亿倍信息技术有限公司 | Method and system for software channel processing |
| CN106452854A (en) * | 2016-09-27 | 2017-02-22 | 南京国电南自轨道交通工程有限公司 | Subway comprehensive monitoring system synchronous communication method based on multi-connection primary-secondary redundancy |
| CN106875501A (en) * | 2017-02-14 | 2017-06-20 | 江苏安防科技有限公司 | A kind of highway tolling system multichannel connection communication method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100407728C (en) * | 2002-08-02 | 2008-07-30 | 中兴通讯股份有限公司 | Board to board communication between distribution system objects |
| CN1956410A (en) * | 2005-10-24 | 2007-05-02 | 华为技术有限公司 | Method for implementing information interaction between single boards |
-
2009
- 2009-03-17 CN CN200910105781XA patent/CN101505234B/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101986594A (en) * | 2010-11-18 | 2011-03-16 | 中兴通讯股份有限公司 | Method and device for realizing communication between single boards |
| CN101986594B (en) * | 2010-11-18 | 2015-06-03 | 中兴通讯股份有限公司 | Method and device for realizing communication between single boards |
| CN102571383A (en) * | 2010-12-16 | 2012-07-11 | 腾讯科技（深圳）有限公司 | Access control method and system |
| CN103118063A (en) * | 2012-11-19 | 2013-05-22 | 苏州亿倍信息技术有限公司 | Method and system for software channel processing |
| CN106452854A (en) * | 2016-09-27 | 2017-02-22 | 南京国电南自轨道交通工程有限公司 | Subway comprehensive monitoring system synchronous communication method based on multi-connection primary-secondary redundancy |
| CN106452854B (en) * | 2016-09-27 | 2019-04-26 | 南京国电南自轨道交通工程有限公司 | A kind of subway comprehensive monitoring system synchronous communication method based on multi-connection master-slave redundancy |
| CN106875501A (en) * | 2017-02-14 | 2017-06-20 | 江苏安防科技有限公司 | A kind of highway tolling system multichannel connection communication method |
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| Publication number | Publication date |
|---|---|
| CN101505234B (en) | 2012-01-11 |
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