CN107070810A - A kind of data transmission method, apparatus and system - Google Patents
A kind of data transmission method, apparatus and system Download PDFInfo
- Publication number
- CN107070810A CN107070810A CN201710107896.7A CN201710107896A CN107070810A CN 107070810 A CN107070810 A CN 107070810A CN 201710107896 A CN201710107896 A CN 201710107896A CN 107070810 A CN107070810 A CN 107070810A
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- Prior art keywords
- data
- data message
- emergency
- virtual channel
- information
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/10—Flow control; Congestion control
- H04L47/24—Traffic characterised by specific attributes, e.g. priority or QoS
- H04L47/2425—Traffic characterised by specific attributes, e.g. priority or QoS for supporting services specification, e.g. SLA
- H04L47/2433—Allocation of priorities to traffic types
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/50—Queue scheduling
- H04L47/62—Queue scheduling characterised by scheduling criteria
- H04L47/625—Queue scheduling characterised by scheduling criteria for service slots or service orders
- H04L47/6275—Queue scheduling characterised by scheduling criteria for service slots or service orders based on priority
Abstract
It is monitored the invention discloses a kind of data transmission method, apparatus and system, including to data information transmission status, and generates corresponding status command；Analysis state is instructed, and when status command is that the state of emergency is instructed, the first control instruction of generation and the second control instruction；The transmission channel of data message is switched into franchise Virtual Channel according to the first control instruction, and franchise Virtual Channel is locked；Emergency data information is determined according to the second control instruction and from the data message of all cachings according to preparatory condition, and preferentially send emergency data information by franchise Virtual Channel.When network gets congestion, the present invention ensure that the timely transmission of emergency data information during use, and the time delay of data transfer is reduced to a certain extent, the efficiency of transmission of data message is improved, improves Consumer's Experience.
Description
Technical field
The present invention relates to communication technical field, more particularly to a kind of data transmission method.The invention further relates to a kind of number
According to transmitting device and system.
Background technology
With the development of exchanging transforming network of data centre chip technology, network node is more and more, and network node is by special
The High speed network of door is connected, it is necessary to more service types and more preferable service quality be provided the user, thus it requires high
Fast internet provides extra treatment mechanism and distinguishes a variety of services and function to realize.At present, the data flow of network
Amount is increasing, when carrying out data information transfer by route or interchanger, it may appear that data traffic exceedes corresponding route
Or the situation of interchanger bandwidth limitation, in this case it occur frequently that the phenomenon of network congestion, in the prior art when network is sent out
During raw congestion it is transmitted by the way that the data message transmitted is transmitted into other nodes, to tackle the phenomenon of network congestion,
But, due to being forwarded node by way of add time of data information transfer to a certain extent, especially for tight
Anxious data message, can cause the delay of data message to a certain extent using data transmission method of the prior art, reduction
The efficiency of transmission of data message, reduces Consumer's Experience.
Therefore, how to provide a kind of data transmission method for solving above-mentioned technical problem, apparatus and system turns into this area
Technical staff's technical issues that need to address.
The content of the invention
It is an object of the invention to provide a kind of data transmission method, apparatus and system, when network gets congestion, the present invention
The timely transmission of emergency data information is ensure that during use, the delay of data transfer is reduced to a certain extent
Property, the efficiency of transmission of data message is improved, Consumer's Experience is improved.
In order to solve the above technical problems, the invention provides a kind of data transmission method, methods described includes：
Data information transmission status is monitored, and generates corresponding status command；
Parse the status command, and when the status command is that the state of emergency is instructed, the first control instruction of generation with
And second control instruction；
The transmission channel of data message is switched into franchise Virtual Channel according to first control instruction, and by the privilege
Virtual Channel is locked；
Urgent number is determined according to second control instruction and from the data message of all cachings according to preparatory condition
It is believed that breath, and preferentially send the emergency data information by the franchise Virtual Channel.
Optionally, the preparatory condition is priority；Then, determined according to preparatory condition from the data message of all cachings
The process for going out emergency data information is specially：
Each described data message is ranked up according to priority, the data message of highest priority is defined as described
Emergency data information.
Optionally, when the data message of highest priority is multiple, believe according to preparatory condition from the data of all cachings
The process that emergency data information is determined in breath is specially：
The earliest data message of time in the data message of each highest priority is defined as the emergency data
Information.
Optionally, the preparatory condition is special identifier code, then, according to preparatory condition from the data message of all cachings
The process for determining emergency data information is specially：
The identification code of the data message of all cachings is screened, and filters out the data letter with special identifier code
Breath, and the data message with special identifier code is defined as emergency data information.
Optionally, data transmission method as described above, the franchise Virtual Channel is any one in all Virtual Channels
It is individual.
Optionally, data transmission method as described above, the data message includes video information, key information, text
Shelves information, e-mail messages, pictorial information or checking information.
In order to solve the above technical problems, the invention provides a kind of data transmission device, described device includes：
Monitoring modular, for being monitored to data information transmission status, and generates corresponding status command；
Control module, for parsing the status command, and when the status command is that the state of emergency is instructed, generation the
One control instruction and the second control instruction；
Sending module is franchise empty logical for switching to the transmission channel of data message according to first control instruction
Road, and the franchise Virtual Channel is locked；The emergency data information is led to for receiving the emergency data information, and preferentially
The franchise Virtual Channel is crossed to send；
Cache module, for from the data message of all cachings determining according to the second control instruction and according to preparatory condition
Go out emergency data information, and the emergency data information is sent.
Optionally, the preparatory condition is priority；Then, determined according to preparatory condition from the data message of all cachings
The process for going out emergency data information is specially：
Each described data message is ranked up according to priority, the data message of highest priority is defined as described
Emergency data information.
Optionally, such as above-mentioned data transmission device, the monitoring modular is the SDN of data center.
In order to solve the above technical problems, the present invention improves a kind of data transmission system, including data as described above
Transmitting device.
The invention provides a kind of data transmission method, apparatus and system, including：Data information transmission status is supervised
Survey, and generate corresponding status command；Analysis state is instructed, and when status command is that the state of emergency is instructed, generation first is controlled
System instruction and the second control instruction；The transmission channel of data message is switched into franchise Virtual Channel according to the first control instruction,
And lock franchise Virtual Channel；From the data message of all cachings determine according to the second control instruction and according to preparatory condition
Emergency data information, and preferentially send emergency data information by franchise Virtual Channel.
The present invention can obtain current by the transmission state of Monitoring Data information, and after being parsed to status command
Whether transmission state gets congestion, and is that status command is state of emergency instruction when getting congestion, now controls generation first
Instruct for the passage of transmitting data information to be switched into franchise Virtual Channel, and the franchise Virtual Channel is locked, that is, gathering around
It is always on logical franchise Virtual Channel stifled this period, then according to the second control instruction generated and according to preparatory condition from institute
The data message for meeting preparatory condition is determined in the data message of caching, several emergency data information of the data message, and it is excellent
The emergency data information is first allowed to be sent by franchise Virtual Channel.When network gets congestion, the present invention is in the process used
In ensure that the timely transmission of emergency data information, the time delay of data transfer is reduced to a certain extent, data are improved
The efficiency of transmission of information, improves Consumer's Experience.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, below will be to institute in prior art and embodiment
The accompanying drawing needed to use is briefly described, it should be apparent that, drawings in the following description are only some implementations of the present invention
Example, for those of ordinary skill in the art, on the premise of not paying creative work, can also be obtained according to these accompanying drawings
Obtain other accompanying drawings.
A kind of schematic flow sheet for data transmission method that Fig. 1 provides for the present invention；
A kind of structural representation for data transmission device that Fig. 2 provides for the present invention；
Fig. 3 is the structural representation of integrated chip corresponding with data transmission device provided by the present invention；
Fig. 4 is the structural representation of the reinforced physical layer provided in the application.
Embodiment
The invention provides a kind of data transmission method, apparatus and system, when network gets congestion, the present invention is being used
During ensure that the timely transmission of emergency data information, the time delay of data transfer is reduced to a certain extent, is improved
The efficiency of transmission of data message, improves Consumer's Experience.
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
A part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
It refer to Fig. 1, a kind of schematic flow sheet for data transmission method that Fig. 1 provides for the present invention.This method includes：
Step 10：Data information transmission status is monitored, and generates corresponding status command；
Step 20：Analysis state instruct, and when status command be the state of emergency instruct when, generation the first control instruction and
Second control instruction；
Step 30：The transmission channel of data message is switched into franchise Virtual Channel according to the first control instruction, and by privilege
Virtual Channel is locked；
Step 40：From the data message of all cachings determine promptly according to the second control instruction and according to preparatory condition
Data message, and preferentially send emergency data information by franchise Virtual Channel.
It should be noted that being that may know that whether network occurs by the monitoring to data message (data flow) transmission state
Congestion, the status command generated when network gets congestion according to monitoring information (namely jam situation information) is urgent
Status command, otherwise, the status command generated are normal state instruction, when network gets congestion, and the present invention is by carrying
The anxious franchise Virtual Channel of supply makes some emergency data information timely be sent by the franchise Virtual Channel so that adjacent segments
Data message between point can realize timely transmission.
Specifically, under normal conditions, each Virtual Channel between adjacent node for transmitting data information is to answer the time-division
, that is, time-sharing polling uses each Virtual Channel.For example, one has 8 Virtual Channels, under normal conditions, each is controlled
Virtual Channel poll is opened the regular hour, and interior such as in 8 points, first is opened first Virtual Channel for 1 minute, now needs to pass through
The data message of first Virtual Channel transmission can be transmitted by first Virtual Channel, wherein, the data letter transmitted
Breath can be transmitted according to the sequencing of time；Terminate within 1 minute when first, during second beginning in 1 minute, by corresponding
Control instruction control Virtual Channel switch over, the Virtual Channel for transmitting data information is switched into Article 2 Virtual Channel,
Article 2 Virtual Channel is exactly opened, it is necessary to which the data message transmitted by Article 2 Virtual Channel can be passed by the Virtual Channel
It is defeated；Poll progress is open-minded successively for each Virtual Channel, until during the 8th beginning in 1 minute, the Virtual Channel of transmitting data information is cut
Article 8 Virtual Channel is shifted to, so as to need the data message transmitted by the Virtual Channel to enter for a period of time by the Virtual Channel at this
Row transmission；When the 8th at the end of 1 minute, poll of each Virtual Channel then into next cycle is open-minded.(need explanation
It is that depending on the quantity of specific poll time and Virtual Channel can be according to actual conditions, the present invention does not do special limit to this
It is fixed.) due to being that poll timesharing is opened between each Virtual Channel, then when the data for needing to transmit by each Virtual Channel are believed
When ceasing more, will occur network congestion, now, cause data transfer slower, (emergency data is believed for important data message
Breath), then more serious delay phenomenon will occurs.
In order to alleviate the generation of above-mentioned this phenomenon, the invention provides emergent franchise Virtual Channel.Specifically, in parsing
To data transmission state be the state of emergency when, that is, occur network congestion when, then will generate corresponding first control instruction with
Second control instruction, and according to first control instruction by for carry out the Virtual Channel of data information transfer switch to it is franchise empty logical
Road, and the franchise Virtual Channel is locked, that is, time division multiplexing is now no longer performed to each Virtual Channel, but it is now only open-minded
Franchise Virtual Channel, and only open privilege in this period that data transmission state is changed to before normal state by the state of emergency
Virtual Channel, each other Virtual Channel will be closed, and at this moment, can be led to the emergency data information in the data message of all cachings
Cross the franchise Virtual Channel to send, to ensure the timely transmission of the emergency data information when occurring network congestion.In addition, according to
Second control instruction is known that data transmission state now is the state of emergency, that is, has been turned on urgent franchise Virtual Channel, can be with
Urgent data message is determined from the data message of all cachings by preparatory condition, that is, preparatory condition will be met
Data message is defined as emergency data information, and preparatory condition here can be determined according to actual conditions, and the present invention is to this
Special restriction is not done, can realize the purpose of the present invention.
It should be noted that Virtual Channel (VC) is a kind of telecommunication circuit, it can be transmitted between two or more end points
ATM cell.Virtual Channel between end points can be user to the link of user or the connection of user-to-network, may be used also
To net the strong connection for arriving network.The end points of Virtual Channel refers to that upper-layer protocol sends or received the interface of ATM cell.It is simple next
Say, Virtual Channel is exactly signal control line.The data message transmitted in the present invention is equivalent to ATM cell.
Optionally, preparatory condition is priority；Then, determined according to preparatory condition from the data message of all cachings tightly
The process of anxious data message is specially：
Each data message is ranked up according to priority, the data message of highest priority is defined as emergency data
Information.
It should be noted that corresponding priority is carried in data message, and the priority of data message can be pre-
First it is configured, then for determining that the preparatory condition of urgent data message can be excellent from the data message of all cachings
First level, that is, determine which data message is emergency data information according to priority.
Specifically, the priority of each data message cached is ranked up, then the data message of highest priority
As emergency data information, then send the data message first.For example, the priority of authentication information is higher than video information
Priority, then authentication information is urgent data message, you can preferentially to send.
Certainly, the preparatory condition in the present invention is not limited only to as priority, can also be other preparatory conditions, the present invention
Do not do special restriction to this, the purpose of the present invention can be realized.
Optionally, when the data message of highest priority is multiple, believe according to preparatory condition from the data of all cachings
The process that emergency data information is determined in breath is specially：
The earliest data message of time in the data message of each highest priority is defined as emergency data information.
It should be noted that when preparatory condition is priority, and the priority of the data message to being cached is carried out
Find that the data message of highest priority has multiple after sequence, at this point it is possible to according to each data of time to highest priority
Information is resequenced, and regard the earliest data message of time in these data messages as emergency data information, you can to incite somebody to action
The data message is preferentially transmitted by franchise Virtual Channel.
Optionally, preparatory condition is special identifier code, then, is determined according to preparatory condition from the data message of all cachings
The process for going out emergency data information is specially：
The identification code of the data message of all cachings is screened, and filters out the data letter with special identifier code
Breath, and the data message with special identifier code is defined as emergency data information.
It should be noted that each data message has with its one-to-one identification code, the default bar in the present invention
Part can also be special identifier code in addition to it can be priority.The data message with special identifier code is urgent number
It is believed that breath, the identification code of all data messages that can be according to special identifier code to being cached is screened, so as to filter out
Data message with special identifier code, and it is excellent by the progress of franchise Virtual Channel using the data message as urgent data message
First send.
Certainly, the preparatory condition in the present invention is not limited only to as special identifier code, can also be other preparatory conditions, this
Special restriction is not done in invention to this, can realize the purpose of the present invention.
Optionally, data transmission method described above, franchise Virtual Channel is any one in all Virtual Channels.
It should be noted that the franchise Virtual Channel in the present invention can be in all Virtual Channels of transmitting data information
Any one, that is, any one in all Virtual Channels for transmitting data information can be elected as to franchise empty logical
Road, for example, as franchise Virtual Channel can be elected first in 8 Virtual Channels, when network gets congestion, you can by first
Virtual Channel (franchise Virtual Channel) is opened；It is of course also possible to Article 2 Virtual Channel be elected as franchise Virtual Channel, when network gets congestion
When, you can Article 2 Virtual Channel (franchise Virtual Channel) is opened.In actual applications, which bar Virtual Channel is specifically set to franchise void
Depending on passage should be according to actual conditions, the present invention does not do special restriction to this, can realize the purpose of the present invention.
Certainly, franchise Virtual Channel can also be preassigned, or can add one by increasing new Virtual Channel
Bar privilege Virtual Channel.Which kind of mode franchise Virtual Channel is specifically determined using, can be according to actual conditions depending on, the present invention to this not
Special restriction is done, the purpose of the present invention can be realized.
Optionally, data transmission method described above, data message includes video information, key information, document information, postal
Part information, pictorial information or checking information.
Certainly, data message can be not only above-mentioned several information, can also be other data messages, the present invention is to this
Special restriction is not done, can realize the purpose of the present invention.
It should also be noted that, the data message in the present invention is referred to as data message.
The invention provides a kind of data transmission method, including：Data information transmission status is monitored, and generates phase
The status command answered；Analysis state is instructed, and when status command is that the state of emergency is instructed, the first control instruction of generation and the
Two control instructions；The transmission channel of data message is switched into franchise Virtual Channel according to the first control instruction, and will be franchise empty logical
Road is locked；Determine that emergency data is believed from the data message of all cachings according to the second control instruction and according to preparatory condition
Breath, and preferentially send emergency data information by franchise Virtual Channel.
The present invention can obtain current by the transmission state of Monitoring Data information, and after being parsed to status command
Whether transmission state gets congestion, and is that status command is state of emergency instruction when getting congestion, now controls generation first
Instruct for the passage of transmitting data information to be switched into franchise Virtual Channel, and the franchise Virtual Channel is locked, that is, gathering around
It is always on logical franchise Virtual Channel stifled this period, then according to the second control instruction generated and according to preparatory condition from institute
The data message for meeting preparatory condition is determined in the data message of caching, several emergency data information of the data message, and it is excellent
The emergency data information is first allowed to be sent by franchise Virtual Channel.When network gets congestion, the present invention is in the process used
In ensure that the timely transmission of emergency data information, the time delay of data transfer is reduced to a certain extent, data are improved
The efficiency of transmission of information, improves Consumer's Experience.
It refer to Fig. 2, a kind of structural representation for data transmission device that Fig. 2 provides for the present invention.In above-described embodiment
On the basis of：
The device includes：
Monitoring modular 1, for being monitored to data information transmission status, and generates corresponding status command；
Control module 2, for analysis state instruction, and when status command is that the state of emergency is instructed, generation first is controlled
Instruction and the second control instruction；
Sending module 3, for the transmission channel of data message to be switched into franchise Virtual Channel according to the first control instruction, and
Franchise Virtual Channel is locked；It is additionally operable to receive emergency data information, and preferentially sends out emergency data information by franchise Virtual Channel
See off；
Cache module 4, for according to the second control instruction and according to preparatory condition from the data message of all cachings really
Emergency data information is made, and emergency data information is sent.
Optionally, preparatory condition is priority；Then, determined according to preparatory condition from the data message of all cachings tightly
The process of anxious data message is specially：
Each data message is ranked up according to priority, the data message of highest priority is defined as emergency data
Information.
Optionally, such as above-mentioned data transmission device, monitoring modular 1 is the SDN of data center.It should be noted that this hair
Monitoring modular 1 in bright is specifically as follows the SDN of data center, wherein, SDN (Software Defined Network) is soft
Part defines network.Namely upper layer software (applications) is entered by the SDN of data center to the running status of whole data information transfer network
Row monitoring, with realize shift to an earlier date anticipation running status, and by corresponding status command instruct in its compass of competency each transmit
Circuit is adjusted work, to reduce the generation of circuit competition, i.e., can be several backward when current several nodes go out to get congestion
Node, which sends status command, makes it carry out corresponding data transfer adjustment.
It should also be noted that, can be by the part in the data transmission device provided in the present invention (or whole) module
It is integrated on a single die, be further applied in route.
Fig. 3 is refer to, Fig. 3 is the structural representation of integrated chip corresponding with data transmission device provided by the present invention
Figure.The integrated chip is applied in route, wherein, VC 0FIFO-VC n FIFO are n+1 Virtual Channel, wherein, by Virtual Channel
VC 0FIFO are as franchise Virtual Channel, i.e., when network gets congestion, and i.e. controllable first Port Multiplier of control module 2 will transmit number
It is believed that the Virtual Channel of breath switches to Virtual Channel VC 0FIFO, and Virtual Channel VC 0FIFO are locked, to be determined in buffer
The Virtual Channel VC 0FIFO that the emergency data information gone out can be locked by the first Port Multiplier in sending module 3 are transmitted to second
Port Multiplier, and finally transmit to receiving terminal.It should be noted that integrated chip that the route of receiving terminal is used and transmitting terminal
The structural representation of the used integrated chip of route is identical, and its working mechanism is also identical, therefore hair is only enumerated in the application
The structural representation for the integrated chip that the route of sending end is used.
The invention provides a kind of data transmission device, when network gets congestion, the present invention is true during use
The timely transmission of emergency data information has been protected, the time delay of data transfer is reduced to a certain extent, data message is improved
Efficiency of transmission, improve Consumer's Experience.
It should be noted that the specific introduction to data transmission method involved in the present invention refer to the above method
Embodiment, the present invention will not be repeated here.
On the basis of above-described embodiment, the present invention improves a kind of data transmission system, including data described above are passed
Defeated device.
The invention provides a kind of data transmission system, when network gets congestion, the present invention is true during use
The timely transmission of emergency data information has been protected, the time delay of data transfer is reduced to a certain extent, data message is improved
Efficiency of transmission, improve Consumer's Experience.
In addition, the specific introduction to data transmission method involved in the present invention refer to above method embodiment,
The present invention will not be repeated here.
In addition it is also necessary to which explanation, the present invention is set up based on reinforced physical layer.In order to optimize on server etc.
Cost is realized in some resource consumptions and the technical indicator of time loss of layer data central apparatus and reduction, and in physical layer
Improvement is completed in signal transacting can achieve that cost is smaller, and all algorithm fusions by part of links layer and process layer exist
Realized in reinforced physical layer.Fig. 4 is refer to, Fig. 4 is the structural representation of the reinforced physical layer provided in the application.Plus
Strong type physical layer, including traditional physical layer, data link layer and process layer, process layer is transaction layer, wherein, you can with logical
The franchise Virtual Channel crossed in the data link layer realization present invention, sends so as to pass through the franchise Virtual Channel when occurring network congestion
Data message, improves the reliability of data information transfer.Specifically, when occurring network congestion, upper layer software (applications) can pass through number
The franchise Virtual Channel for controlling enhancement layer physical layer to enter in emergency rating, and then control data link layer according to the SDN at center
Open, and emergency data information is transmitted by the franchise Virtual Channel.In addition, being carried out in transmitting terminal and receiving terminal
When data message is interacted, transmitting terminal and receiving terminal can be using the reinforced physical layers provided in the application.
The present invention adds the conversion of Phit Virtual Channels and flow control etc. in data link layer and strengthens anti-congestion function, meets
QSFP10 international standards, strengthen the function of anti-congestion also for the demand for adapting to route switching prevention link congestion, wherein,
The referred to as Phit of the bit wide of the Virtual Channel of the data link layer Virtual Channel equal with inputting reception data bit width from usual physical layer
Virtual Channel.The main design for employing the conversion of Phit Virtual Channels and flow control of design, to support limited qos feature and use
Unconventional average multiplexer mode, but a reserved Virtual Channel is franchise Virtual Channel, franchise Virtual Channel (such as Virtual Channel VC
High priority data transmission privilege 0FIFO) is enjoyed in emergency situations, i.e., in emergency situations open the franchise Virtual Channel, by it
His Virtual Channel close (under normal conditions, the franchise Virtual Channel and other Virtual Channel equalitys, and with other Virtual Channel time-divisions
Multiplexing), as Emergency use in the situation (i.e. emergency) of heavy congestion, in the dynamic Virtual Channel distribution feelings of daily common software
Pipeline by default under condition；The design of franchise Virtual Channel ensure that can have certain data unimpeded under any network condition
Pipeline and communication bandwidth.
In addition, the emergency data information in the application is except the data message that can be cached by cache module 4 to it
Screened to determine beyond emergency data information, privileged instruction can also be assigned by top level control program to a certain number
It is believed that breath, then the data message with the privileged instruction is emergency data information, you can with by franchise Virtual Channel that this is tight
Anxious data message is sent.The function of assigning privileged instruction possesses the work(of the direct processing layer interface with reinforced physical layer
Energy；Can be encoded in specific design using 8B/10B into line number pass, can meet Infiniband, Fibre Channel,
The high-speed serial bus communication standard of the main flows such as RapidIO, SATA, PCIe, USB3.0, is provided simultaneously with certain error detecing capability.
The present invention can be applied in data center products high speed serialization interconnection mechanism, and mainly following large-scale high-end server is produced
NR, which exchanges at a high speed route querying technology, in product certain effect, the lookup environment suitable for extensive routing table；This method is to be based on
Data center's exchange chip feature is strengthened and transformed to conventional physical, can apply and exchange route at a high speed in server
On device, there is certain effect for following exchanging transforming network of data centre research.
It should also be noted that, in this manual, such as term " comprising ", "comprising" or its any other variant meaning
Covering including for nonexcludability, so that process, method, article or equipment including a series of key elements not only include that
A little key elements, but also other key elements including being not expressly set out, or also include be this process, method, article or
The intrinsic key element of equipment.In the absence of more restrictions, the key element limited by sentence "including a ...", is not arranged
Except also there is other identical element in the process including the key element, method, article or equipment.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or using the present invention.
A variety of modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The most wide scope caused.
Claims (10)
1. a kind of data transmission method, it is characterised in that methods described includes：
Data information transmission status is monitored, and generates corresponding status command；
Parse the status command, and when the status command is that the state of emergency is instructed, the first control instruction of generation and the
Two control instructions；
The transmission channel of data message is switched into franchise Virtual Channel according to first control instruction, and the privilege is empty logical
Road is locked；
Determine that emergency data is believed from the data message of all cachings according to second control instruction and according to preparatory condition
Breath, and preferentially send the emergency data information by the franchise Virtual Channel.
2. data transmission method according to claim 1, it is characterised in that the preparatory condition is priority；Then, according to
Preparatory condition determines that the process of emergency data information is specially from the data message of all cachings：
Each described data message is ranked up according to priority, the data message of highest priority is defined as described urgent
Data message.
3. data transmission method according to claim 2, it is characterised in that when the data message of highest priority is multiple
When, the process that emergency data information is determined from the data message of all cachings according to preparatory condition is specially：
The earliest data message of time in the data message of each highest priority is defined as the emergency data information.
4. data transmission method according to claim 1, it is characterised in that the preparatory condition is special identifier code, then,
The process that emergency data information is determined from the data message of all cachings according to preparatory condition is specially：
The identification code of the data message of all cachings is screened, and filters out the data message with special identifier code, and
The data message with special identifier code is defined as emergency data information.
5. the data transmission method according to claim 1-4 any one, it is characterised in that the franchise Virtual Channel is institute
There is any one in Virtual Channel.
6. the data transmission method according to claim 1-4 any one, it is characterised in that the data message includes regarding
Frequency information, key information, document information, e-mail messages, pictorial information or checking information.
7. a kind of data transmission device, it is characterised in that described device includes：
Monitoring modular, for being monitored to data information transmission status, and generates corresponding status command；
Control module, for parsing the status command, and when the status command is that the state of emergency is instructed, generation first is controlled
System instruction and the second control instruction；
Sending module, for the transmission channel of data message to be switched into franchise Virtual Channel according to first control instruction, and
The franchise Virtual Channel is locked；It is additionally operable to receive the emergency data information, and preferentially passes through the emergency data information
The franchise Virtual Channel is sent；
Cache module, for being determined according to second control instruction and according to preparatory condition from the data message of all cachings
Go out emergency data information, and the emergency data information is sent.
8. data transmission device according to claim 7, it is characterised in that the preparatory condition is priority；Then, according to
Preparatory condition determines that the process of emergency data information is specially from the data message of all cachings：
Each described data message is ranked up according to priority, the data message of highest priority is defined as described urgent
Data message.
9. the data transmission device according to claim 7 or 8, it is characterised in that the monitoring modular is data center
SDN。
10. a kind of data transmission system, it is characterised in that including the data transfer dress as described in claim 7-9 any one
Put.
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