CN105591894B - A kind of method and apparatus that the veneer of distributed system improves data channel reliability between plate - Google Patents
A kind of method and apparatus that the veneer of distributed system improves data channel reliability between plate Download PDFInfo
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- CN105591894B CN105591894B CN201510390020.9A CN201510390020A CN105591894B CN 105591894 B CN105591894 B CN 105591894B CN 201510390020 A CN201510390020 A CN 201510390020A CN 105591894 B CN105591894 B CN 105591894B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/28—Routing or path finding of packets in data switching networks using route fault recovery
Abstract
The invention discloses the methods that a kind of veneer of distributed system improves data channel reliability between plate, the veneer and another veneer are interconnected by two unidirectional the first data channel and the second data channel, by two-way interprocess communication channel transmitting-receiving protocol massages, method includes: that veneer passes through data message or detection messages of first data channel reception from another veneer for the veneer and another veneer；Veneer, which determined in the first threshold time set, does not receive data message or detection messages by first data channel, then disconnects message to another veneer by interprocess communication channel sendaisle；It will be sent datagram by interprocess communication channel to veneer with triggering another veneer, to ensure that the uninterrupted of data message forwarding.The invention discloses the devices that a kind of veneer of distributed system improves data channel reliability between plate.
Description
Technical field
Data are logical between improving plate the present invention relates to the veneer of communication between plates technical field more particularly to a kind of distributed system
The method and apparatus of road reliability.
Background technique
Typical distributed system is as shown in Figure 1, include main control board, slave control board, interprocess communication chip, number
According to chip and more than two interface boards.Physically, any two in main control board, slave control board and interface board
By interprocess communication chip between veneer, using as interprocess communication channel (Interprocess Communication,
IPC) channel carries out the transmission of control message；It is connected by data chip, the transmission to carry out data message as data channel.
Data channel between any two veneer can be made of two one-way data channels or a bidirectional data path.
Wherein, main control board or slave control board reach interface board for message is controlled by interprocess communication channel, with
Realize the control to interface board.When normal work, main control board controls interface board, and slave control board is in primary master control
After plate generation problem, main control board can be just taken over to be managed to interface board.
A forwarding-table item can be saved after through Routing Protocol study to forwarding-table item for each interface board, this
After sample interface board receives data message, forwarding-table item directly is searched in interface board, can realize the forwarding of data message.If
When on different interface boards, data message is needed from incoming interface plate via data between plate the incoming interface and outgoing interface of data message
Channel is forwarded to outgoing interface plate.
In the prior art, interprocess communication channel just can satisfy requirement using the Ethernet band width in physical of 1G；Data are logical
Road is not physically identical with interprocess communication channel, for the hardware corridor specially provided, guarantees the data message of straddle
Forwarding service.
When distributed system is run, the data channel failure between veneer but the interprocess communication channel between veneer are normally still
The protocol massages such as Routing Protocol can be forwarded, other equipment will be considered that distributed system is still worked normally and receive without routing in network
It holds back, the data channel of the failure inside such distributed system will lead to the data message forwarding in distributed system and network
Failure.
Currently in order to data channel failure between veneer is solved, the intercommunity of meeting data detection channel between each interface board.
If when a data channel failure, master control borad can be by reseting interface plate, to attempt to restore data channel.But it if encounters
The failure of chip of data channel, this method can not prove effective, and data channel is obstructed always, during customer service just can only be constantly in
It is disconnected.
Summary of the invention
In view of this, the present invention propose between a kind of veneer of distributed system improves plate the method for data channel reliability and
Device, to solve the above problems.
In order to achieve the above objectives, the technical solution of the embodiment of the present invention is achieved in that
The embodiment of the present invention provides the method that a kind of veneer of distributed system improves data channel reliability between plate, described
Veneer and another veneer are interconnected by two unidirectional the first data channel and the second data channel, the veneer with it is described another
Veneer receives and dispatches protocol massages by two-way interprocess communication channel, which comprises
The veneer receives data message or detection messages from another veneer by first data channel；
The veneer, which determined in the first threshold time set, does not receive data message by first data channel
Or detection messages, then message is disconnected to another veneer by interprocess communication channel sendaisle；It is described another to trigger
One veneer will be sent datagram by the interprocess communication channel to the veneer.
Optionally, the method also includes:
It is not sent to the data message of another veneer in the second threshold time of the veneer judgement setting, then passes through
Second data channel sends detection messages to another veneer.
Optionally, the method also includes:
The veneer receives the detection messages that another veneer is sent by first data channel again, then passes through
Interprocess communication channel sendaisle restores message to another veneer, to trigger another veneer for data message
First data channel is switched to send.
The veneer that the embodiment of the present invention also provides a kind of distributed system improves the device of data channel reliability between plate, institute
It states veneer and another veneer to interconnect by two unidirectional the first data channel and the second data channel, the veneer and described another
One veneer receives and dispatches protocol massages by two-way interprocess communication channel, and described device includes: control packet sending and receiving module, data
Packet sending and receiving module, channel switching module；
The data message transceiver module of the veneer is received by first data channel from another veneer
The data message or detection messages that data message transceiver module is sent；
The data message transceiver module of the veneer, which determined in the first threshold time set, does not pass through first data
Channel reception then triggers the control packet sending and receiving module and passes through the interprocess communication channel to data message or detection messages
Sendaisle disconnects the channel switching module of message to another veneer.
Optionally, it is not sent in the second threshold time of the data message transceiver module judgement setting of the veneer described
The data message of the data message transceiver module of another veneer then sends detection messages to described by second data channel
The data message transceiver module of another veneer.
Optionally, the data message transceiver module of the veneer is received described another again by first data channel
The detection messages that the data message transceiver module of veneer is sent, then trigger the control packet sending and receiving module and pass through between the process
Communication channel sendaisle restores the channel switching module of message to another veneer.
Methods and apparatus of the present invention can will be through after data channel between veneer and another veneer breaks down
It is switched to by the data message that the data channel of failure is sent and is sent via interprocess communication channel, to ensure that data message
What is forwarded is uninterrupted.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of distributed system；
Fig. 2 is the method schematic diagram one of data channel reliability between the raising plate in the embodiment of the present invention；
Fig. 3 is the method schematic diagram two of data channel reliability between the raising plate in the embodiment of the present invention；
Fig. 4 a~4c is the schematic diagram of the switching channel of the distributed system in the embodiment of the present invention；
Fig. 5 is the structure drawing of device of data channel reliability between the raising plate in the embodiment of the present invention.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, below by way of specific embodiment and join
See attached drawing, the present invention is described in detail.
The skill for causing customer service to be interrupted to solve the data channel failure between veneer existing in the prior art
Art problem, the embodiment of the present invention provide the method that a kind of veneer of distributed system improves data channel reliability between plate, with
The normal forwarding of data message can also be realized when data channel failure.
Wherein, it is connected by backboard between all veneers, backboard is equipped with interprocess communication chip and data chip.Often
A veneer can be interface board, or master control borad.
Backboard is equipped with interprocess communication chip and data chip.And every two veneer is corresponded on interprocess communication chip and is matched
It is equipped with the two-way interprocess communication channel of a transmission control message, corresponds to every two veneer configured with two on data chip
The first data channel and the second data channel of unidirectional data transmission message.In this way, if one of veneer is to another veneer
The first data channel to send datagram breaks down, and only will affect the transmission of the data message in this direction, can't
Influence the transmission of the data message of opposite direction.
In the embodiment of the present invention shown in Fig. 2 improve plate between data channel reliability method the following steps are included:
Step 201, veneer receives data message or detection messages from another veneer by the first data channel；
Step 202, veneer, which determined in the first threshold time set, does not receive data message by the first data channel
Or detection messages, then message is disconnected to another veneer by interprocess communication channel sendaisle；It will to trigger another veneer
It is sent datagram by interprocess communication channel to veneer.
Send the purpose of the detection messages, i.e., when another veneer is not sent datagram whithin a period of time to veneer,
Then to the veneer send detection messages, for veneer in order to data detection channel on-off whether, avoid not having whithin a period of time
It sends datagram to fault misdescription caused by the veneer.
Step 203, another veneer will be sent datagram by interprocess communication channel to the veneer.
By taking application scenarios are the distributed system referred in background technique as an example, wherein veneer can be interface board or master
With master control borad or slave control board.
Wherein, interprocess communication chip is slow channels, such as 1Gbps rate；Data chip is high-speed channel,
2.5Gbps/10Gbps waiting.In actual use, the interprocess communication chip or data chip can for Ethernet switching chip,
PCIE (Peripheral Component Interconnect Express) exchange chip etc..
It should be noted that because interacting between main control board or slave control board and interface board is most of for control
Message, the only contact of a small number of data messages, such as configuration information.In order to save resource, master control borad side to interface board side, with
And the data message and control message of interface board side to master control borad side are sent via channel between a process.Such situation
Under, it is physically connected only by interprocess communication chip between main control board and slave control board and interface board.
Similarly, it is physically also only connected by interprocess communication chip between main control board and slave control board.This implementation
Example only discuss main control board or slave control board between interface board data channel and interprocess communication channel physically
For the situation of two passes, as shown in Figure 1.
More detailed step is referring to Fig. 3 and Fig. 4 a~Fig. 4 c.Fig. 4 a~Fig. 4 c shows the number between two interface boards
The embodiment of channel switching is carried out when disconnecting according to channel.In Fig. 4 a~Fig. 4 c, solid line represents the transmission of data message, dotted line generation
The transmission of table control message.
By taking interface board A and interface board B as an example, data channel is reliable between the veneer of the distributed system of the present embodiment improves plate
The method of property the following steps are included:
Step 301, interface board B checks whether receive by the first data channel certainly within the first threshold time of setting
To the interface board A data message sent or detection messages；If so, entering step 302；If it is not, entering step 303.
Wherein, the detection messages that interface board A is sent, start timing after sending datagram for interface board A, if reaching the
There is not data message to be sent to interface board B after two threshold times yet, then sends and send detection messages via the first data channel
To interface board B.
Detection messages belong to control message, include at least type of message field, source address (i.e. interface board A) in heading
And destination address (i.e. interface board B).Interface board B receives the detection messages, just means between interface board A and interface board B
Data channel it is normal.
In addition, first threshold time and second threshold time can be by user's sets itselfs.It should be noted that considering
Time of data-message transmission, data channel the factors such as transmission delay influence, the second threshold time need to be less than first threshold
Time.
Step 302, interface board B receive the data message or detection messages, and the data message received is forwarded.
As shown in fig. 4 a, the transmission of the data message between normal condition lower interface plate A and B and control message.Wherein,
It is interface board A and B on data chip configured with two unidirectional the first data channel and the second data channel；Interprocess communication core
On piece is that interface board A and B are configured with a two-way interprocess communication channel.
Step 303, interface board B disconnects message to interface board A, subsequently into step by interprocess communication channel sendaisle
Rapid 304.
The data channel of b referring to fig. 4, interface board A to interface board B disconnect, and interface board B can not receive within the first threshold time
The data message of interface board A, while also can not receive the detection messages of interface board A, then pass through interprocess communication channel sendaisle
Message is disconnected to interface board A.
Step 304, interface board A will be sent datagram by interprocess communication channel to interface board B, subsequently into step
305。
I.e. referring to fig. 4 c, interface board B notification interface plate A, changes interface board A by data message and is sent out by interprocess communication channel
It send, to guarantee the transmission of the data message when data channel breaks down.
Specifically, including at least type of message field, source address and destination address in the heading of data message；
In the heading for controlling message, type of message field, function field, source address and destination address are included at least.Different controls
Message processed is by function field, to realize different control functions.
For interface board A, after the channel for receiving interface board B transmission disconnects message, parsing channel is disconnected in message
Source address and destination address, then detect itself whether be stored with destination address be interface board B data message, if depositing
Then the data message is being issued via interprocess communication channel.
For interface board B, message is being received by interprocess communication channel, is passing through the type of message in analytic message head
Field, to distinguish control message and data message.
Step 305, interface board B judges whether the detection report for receiving interface board A transmission again by the first data channel
Text, if it is, entering step 306.
Step 306, interface board B restores message to interface board A, subsequently into step by interprocess communication channel sendaisle
Rapid 307.
Wherein, message is disconnected for the channel in routing restoration message and abovementioned steps, includes message class in heading
Type-word section and function field.The type of message of two kinds of messages is control message；As for function field, not above-mentioned control
Function field in message processed, but the spare field of the function field part in original control message is had changed, and again
Define the movement of this function field.
In this step, interface board A can continuously attempt to send detection messages via the data channel of the disconnection.If data
After routing restoration, then the detection messages are sent to interface board B, and after the routing restoration message for receiving interface board B return, it is complete
At the recovery of data channel.
Optionally, interface board can also prompt the position of user malfunction point by prompt information.User is according to oneself industry
Business demand, manual operation restore data channel, such as reset data chip, replacement data chip.
307, after interface board A receives routing restoration message, the data message sent via interprocess communication channel is cut
It changes to the first data channel and is sent to interface board B.
The embodiment of the invention also discloses a kind of veneer of distributed system improve plate between data channel reliability device,
As shown in figure 5, veneer and another veneer are interconnected by two unidirectional the first data channel and the second data channel, veneer and another
One veneer receives and dispatches protocol massages by interprocess communication channel.
The device is set on each veneer, comprising: control packet sending and receiving module, data message transceiver module, handover trigger
Module；
The data message transceiver module of veneer receives the data message transmitting-receiving from another veneer by the first data channel
The data message or detection messages that module is sent；
The data message transceiver module of veneer is determined in the first threshold time of setting and is not received by the first data channel
To data message or detection messages, then control packet sending and receiving module is triggered by interprocess communication channel sendaisle and disconnects message
To the channel switching module of another veneer；Pass through interprocess communication channel to trigger the control packet sending and receiving module of another veneer
It sends datagram to the control packet sending and receiving module of veneer.
Optionally, another veneer is not sent in the second threshold time of the data message transceiver module judgement setting of veneer
Data message transceiver module data message, then by the second data channel send detection messages to another veneer datagram
Literary transceiver module.
Optionally, the data message transceiver module of veneer receives the datagram of another veneer by the first data channel again
The detection messages that literary transceiver module is sent then trigger control packet sending and receiving module and are restored by interprocess communication channel sendaisle
Data message is switched to the channel switching module of another veneer with triggering the data message transceiver module of another veneer by message
First data channel is sent.
To sum up, the method and apparatus that the veneer of distributed system of the invention improves data channel reliability between plate, in list
After data channel between plate and another veneer breaks down, another veneer can be sent to the data message switching of the veneer
It is sent to via interprocess communication channel, to ensure that the uninterrupted of data message forwarding.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent substitution, improvement and etc. done be should be included within the scope of the present invention.
Claims (6)
1. the method that a kind of veneer of distributed system improves data channel reliability between plate, the veneer pass through with another veneer
Two unidirectional the first data channel and the second data channel interconnection, the veneer and another veneer pass through two-way process
Between communication channel receive and dispatch protocol massages, which is characterized in that the described method includes:
The veneer receives data message or detection messages from another veneer by first data channel；
The veneer, which determined in the first threshold time set, does not receive data message or inspection by first data channel
Text is observed and predicted, then message is disconnected to another veneer by interprocess communication channel sendaisle；To trigger another list
Plate will be sent datagram by the interprocess communication channel to the veneer.
2. the method according to claim 1, wherein the method also includes:
The data message of another veneer is not sent in the second threshold time of the veneer judgement setting, then by described
Second data channel sends detection messages to another veneer.
3. according to the method described in claim 2, it is characterized in that, the method also includes:
The veneer receives the detection messages that another veneer is sent by first data channel again, then by described
Interprocess communication channel sendaisle restores message to another veneer, is switched with triggering another veneer for data message
It is sent to first data channel.
4. a kind of veneer of distributed system improves the device of data channel reliability between plate, the veneer passes through with another veneer
Two unidirectional the first data channel and the second data channel interconnection, the veneer and another veneer pass through two-way process
Between communication channel receive and dispatch protocol massages, which is characterized in that described device include: control packet sending and receiving module, data message transmitting-receiving
Module, channel switching module；
The data message transceiver module of the veneer receives the data from another veneer by first data channel
The data message or detection messages that packet sending and receiving module is sent；
The data message transceiver module of the veneer, which determined in the first threshold time set, does not pass through first data channel
Data message or detection messages are received, then triggers the control packet sending and receiving module and is sent by the interprocess communication channel
Channel disconnects the channel switching module of message to another veneer.
5. device according to claim 4, which is characterized in that
Another veneer is not sent in the second threshold time of the data message transceiver module judgement setting of the veneer
The data message of data message transceiver module then sends detection messages to another veneer by second data channel
Data message transceiver module.
6. device according to claim 5, which is characterized in that
The data message transceiver module of the veneer receives the data of another veneer by first data channel again
The detection messages that packet sending and receiving module is sent, then trigger the control packet sending and receiving module and sent out by the interprocess communication channel
Send routing restoration message to the channel switching module of another veneer.
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| CN107547277B (en) * | 2017-08-29 | 2020-09-08 | 新华三技术有限公司 | Method for realizing virtualization control board and network communication equipment |
| CN109936518B (en) * | 2017-12-18 | 2022-02-11 | 迈普通信技术股份有限公司 | Detection method for channel fault of switching chip and distributed rack switch |
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| CN101094125A (en) * | 2006-06-23 | 2007-12-26 | 华为技术有限公司 | Exchange structure in ATCA / ATCA300 expanded exchange bandwidth |
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| CN1592132A (en) * | 2003-09-01 | 2005-03-09 | 华为技术有限公司 | Master stand-by inkage switching method of cascade one-board |
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