CN106534331B - A kind of data transmission method and system based on dynamic port switching - Google Patents
A kind of data transmission method and system based on dynamic port switching Download PDFInfo
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- CN106534331B CN106534331B CN201611078535.6A CN201611078535A CN106534331B CN 106534331 B CN106534331 B CN 106534331B CN 201611078535 A CN201611078535 A CN 201611078535A CN 106534331 B CN106534331 B CN 106534331B
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 101
- 238000000034 method Methods 0.000 title claims abstract description 20
- 230000007246 mechanism Effects 0.000 claims abstract description 16
- 238000012790 confirmation Methods 0.000 claims description 10
- 230000001960 triggered effect Effects 0.000 claims description 4
- 238000005538 encapsulation Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000009466 transformation Effects 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- 238000011084 recovery Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/14—Session management
Abstract
The invention discloses a kind of data transmission methods and system based on dynamic port switching, the described method comprises the following steps: the connection comprising the first source port is established in transmitting terminal and receiving end, and then the second source port is arranged in the transmitting terminal；The transmitting terminal sends message to the receiving end by first source port；When the transmitting terminal is connect with the receiving end to be prohibited, the transmitting terminal establishes connection by second source port and the receiving end and sends message.The present invention includes " connection is forbidden " automatic detecting machine system and dynamic port handover mechanism, by the mechanism for dynamically converting port, the problem of connection being limited with effective solution transmission link infrastructure, realize the automatic disconnection reconnecting of connection in transport protocol level, it is fully transparent to application layer, and guarantee the stability of data transmission.
Description
Technical field
The present invention relates to network transmission technology field, in particular to a kind of data transmission method based on dynamic port switching
And system.
Background technique
With the continuous increase of internet scale, network environment also becomes to become increasingly complex, and what people transmitted data
Quality also requires higher and higher.The transmission of super large file, or the similar transmission that this data flow is broadcast live, transmission time are often held
The continuous some time even needs to take several days sometimes.Under this scene, transmitting terminal and receiving end are controlled by establishing a transmission
Agreement (TCP) connection carries out data transmission, if the transmission link relied on is unstable, will appear biography in document transmission process
The problems such as defeated interruption failure, live streaming picture Caton, seriously affect user experience.
Data transmission of the prior art under the severe and complicated network environments such as similar transnational or cross operator is usually
Face following problems:
(1) connection is prohibited problem suddenly: since the data packet sending speed of transmission control protocol is too fast or transmission bandwidth
It is bigger, the punitive measures of some infrastructure in transmission link is triggered, this connection is caused to be prohibited, data transmission
It interrupts.
(2) do disconnection reconnecting by application layer and breakpoint transmission cost is bigger: the recovery technology of conventional means is more multiple
It is miscellaneous, and technical application is limited, it can not restore under all situations.
Summary of the invention
In order to solve problems in the prior art, the embodiment of the invention provides a kind of data biographies based on dynamic port switching
Transmission method and system.The technical solution is as follows:
On the one hand, a kind of data transmission method based on dynamic port switching, comprising the following steps:
The connection comprising the first source port is established in transmitting terminal and receiving end, and then the second source port is arranged in transmitting terminal；
Transmitting terminal sends message to receiving end by the first source port；
When transmitting terminal is connect with receiving end to be prohibited, it is concurrent that transmitting terminal by the second source port establishes connection with receiving end
It delivers newspaper text.
Further, the connection comprising the first source port is established in transmitting terminal and receiving end, and then the second source is arranged in transmitting terminal
The specific steps of port include:
Transmitting terminal establishes connection by transmission control protocol and receiving end, and transmission control protocol is uniquely marked by four-tuple
Show connection, four-tuple includes source internet protocol address, the first source port, purpose Internet protocol address and destination port；
Transmitting terminal selects new port as the second source port；
Transmitting terminal constructs message, in messages by the encapsulation of the second source port information, is sent to reception by the first source port
End；
After receiving end receives the message containing the second source port information, the second source port information is parsed, constructs port
Confirmation message is sent to transmitting terminal.
Further, transmitting terminal constructs message, in messages by the encapsulation of the second source port information, is sent out by the first source port
The specific steps for giving receiving end include:
Transmitting terminal constructs message, in messages by the encapsulation of the second source port information, is sent to reception by the first source port
End；
Transmitting terminal starts timer, sets timing threshold as T, the port confirmation message for waiting receiving end to reply；
If not receiving port confirmation message in timing threshold T, message is retransmitted.
Further, transmitting terminal includes: to the specific steps that receiving end sends message by the first source port
Transmitting terminal is that transmission times count value is arranged in each message to be sent, and transmission times count value initial value is set as 0,
Message to be sent is every to send primary, transmission times count value increase by 1；
Transmitting terminal sends message to receiving end by the first source port.
Further, when transmitting terminal is connect with receiving end to be prohibited, transmitting terminal is built by the second source port with receiving end
The vertical specific steps for connecting and sending message include:
Whether transmitting terminal judges that transmitting terminal is connect with receiving end and is prohibited；
If connection is not prohibited, transmitting terminal continues through the first source port and sends message to receiving end；
If connection is prohibited, port handover mechanism is triggered, transmitting terminal is sent out by the second source port to receiving end again
It delivers newspaper text.
Further, transmitting terminal judges that transmitting terminal connect whether forbidden specific steps include: with receiving end
Transmitting terminal judges whether message sends success；
Transmitting terminal connect with receiving end and is not prohibited if sending successfully；
Judge whether the transmission times count value of message is greater than preset value if transmission is unsuccessful；
If transmission times count value is less than or equal to preset value, transmitting terminal is connect with receiving end not to be prohibited；
If transmission times count value is greater than preset value, transmitting terminal is connect with receiving end to be prohibited.
Further, if connection is prohibited, port handover mechanism is triggered, transmitting terminal passes through the second source port to reception
End retransmits message specific steps are as follows: the first source port is changed to the second source port by transmitting terminal, then passes through the second source
Mouth establishes connection and sends message with receiving end, and the four-tuple of unique mark connection is source internet protocol address, the second source
Mouth, purpose Internet protocol address and destination port.
On the other hand, a kind of data transmission system based on dynamic port switching, including transmitting terminal and receiving end, transmitting terminal
It is connected with receiving end by transmission control protocol；
Transmitting terminal includes:
Port backup module for the second source port to be arranged in transmitting terminal, and carries out source port switching；
First transceiver module is connect with port backup module, for sending message to receiving end, and receives receiving end return
Reply message；
Receiving end includes:
Second transceiver module is connect with the first transceiver module, is sent out for receiving the message of transmitting terminal transmission, and to transmitting terminal
Send multiple message back to.
Further, transmitting terminal further include:
Connection status module is connect with the first transceiver module, for judging the connection status of transmitting terminal and receiving end.
Further, connection status module specifically includes:
Packet counting module is connect with the first transceiver module, is counted for the transmission times to each message；
Condition judgment module is connect with packet counting module, for judging transmitting terminal by the transmission times of message and connecing
The connection status of receiving end.
Further, the judgment rule of condition judgment module are as follows:
When the transmission times of message is less than or equal to preset value, judge that transmitting terminal is connect normally with receiving end；
When the transmission times of message is greater than preset value, judges transmitting terminal and receiving end disconnecting or be prohibited.
Technical solution provided in an embodiment of the present invention has the benefit that the present invention includes that " connection is forbidden " is examined automatically
Survey mechanism and dynamic port handover mechanism." connection is forbidden " automatic detecting machine system is by recording the weight of each data packet in transmitting terminal
Number is passed, when a data packet number of retransmissions reaches certain threshold values, determines that connection is prohibited.Dynamic port handover mechanism be
When a connection is established in transmitting terminal and receiving end, both sides, which can negotiate, carrys out a new source port, as backup port,
It is exactly that there are two four-tuples for a connection.Under normal circumstances, all data are all transmitted by one of four-tuple, when passing through
When the discovery of " connection is forbidden " automatic detecting machine system has connection is forbidden to happen, it is switched in another four-tuple and transmits
Data, and renegotiate out a new four-tuple.The present invention, can be effective by the mechanism of this dynamic transformation port
It solves the problems, such as that transmission link infrastructure limits connection, realizes and break automatically again in the connection of transport protocol level
Even, fully transparent to application layer, and guarantee the stability of data transmission.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is the data transmission method flow chart based on dynamic port switching that the embodiment of the present invention one provides；
Fig. 2 is the data transmission method flow chart based on dynamic port switching that the embodiment of the present invention one provides；
Fig. 3 is the tool of step S207 in the data transmission method based on dynamic port switching of the offer of the embodiment of the present invention one
Body flow chart；
Fig. 4 is the data transmission system structure chart provided by Embodiment 2 of the present invention based on dynamic port switching；
Fig. 5 is the data transmission system structure chart provided by Embodiment 2 of the present invention based on dynamic port switching；
Fig. 6 is the data transmission system structure chart provided by Embodiment 2 of the present invention based on dynamic port switching.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to embodiment party of the present invention
Formula is described in further detail.
Embodiment one
The present invention provides a kind of data transmission method based on dynamic port switching, as shown in Figure 1, comprising the following steps:
The connection comprising the first source port is established in S101, transmitting terminal and receiving end, and then the second source port is arranged in transmitting terminal；S102, hair
Sending end sends message to receiving end by the first source port；S103, when transmitting terminal is connect with receiving end to be prohibited, transmitting terminal is logical
It crosses the second source port and receiving end establishes connection and sends message.
Specifically, as shown in Figure 2:
Step S201, transmitting terminal establish connection by transmission control protocol (TCP) and receiving end.Transmitting terminal and receiving end are touched
Hair transmission control three-way handshake mechanism establishes a transmission control four-tuple, transmission control after transmission control three-way handshake success
Agreement processed uniquely indicates connection by four-tuple.Four-tuple includes source internet protocol address, the first source port, purpose interconnection
FidonetFido address and destination port.
Step S202, transmitting terminal selection port is as the second source port.Transmitting terminal selects one by transmission control protocol
New port is as the second source port.Standby port of second source port as the first source port, when the connection of the first source port
When being prohibited, the second source port can be directly enabled.
Step S203, transmitting terminal construct message, in messages by the encapsulation of the second source port information, are sent out by the first source port
Give receiving end.Transmitting terminal constructs a message, in messages by the encapsulation of the second source port information, is sent by the first source port
To receiving end；Transmitting terminal starts timer simultaneously, sets timing threshold as T, the port confirmation message for waiting receiving end to reply；Such as
Fruit does not receive port confirmation message in timing threshold T, then retransmits message, and message at most retransmits three times.T=2 × RTT, RTT
For the data round-trip delay of transmitting terminal and receiving end.
Step S204 after receiving end receives the message containing the second source port information, parses the second source port information,
Port confirmation message is constructed, transmitting terminal is sent to.After receiving end receives message, the information of the second source port is parsed, and is constructed
Port confirmation message is sent to transmitting terminal, and receiving end can receive the message from the second source port at this time, and as from the
The Message processing of one source port.
Step S205, transmitting terminal are that transmission times count value is arranged in each message to be sent.Transmission times count value is initial
Value is set as 0, and message to be sent is every to send primary, transmission times count value increase by 1.
Step S206, transmitting terminal send message to receiving end by the first source port.
Whether step S207 judges that transmitting terminal is connect with receiving end and is prohibited.If connection is not prohibited, then follow the steps
S208 thens follow the steps S209 if connection is prohibited.
Step S208, transmitting terminal continue through the first source port and send message to receiving end；
Step S209, triggers port handover mechanism, and transmitting terminal retransmits message to receiving end by the second source port.Hair
First source port is changed to the second source port by sending end, then establishes connection by the second source port and receiving end, and repeats to walk
The step of rapid S202 to S209, sends message to receiving end.The four-tuple that unique mark connects at this time is for source internet protocol
Location, the second source port, purpose Internet protocol address and destination port.
Specifically, step S207, judges that transmitting terminal connect whether forbidden specific steps are as shown in Figure 3 with receiving end:
Step S2071, transmitting terminal judge whether message sends success.If the message is sent successfully, transmitting terminal with connect
Receiving end connection is normal, after which sends, executes step S208, continues to send next message；If the message is sent
Failure, then carry out step S2072.
Step S2072, judges whether the transmission times count value of message is greater than preset value.Generally by transmission times count value
10 are preset as, this is not limited by the present invention.If transmission times count value≤10 judge that transmitting terminal is connect not with receiving end
It is prohibited, return step S206；If transmission times count value > 10 judges that transmitting terminal is connect with receiving end and is prohibited, into
Row step S209.
Assuming that the maximum bandwidth of link is M, file size N, then theoretically file transmission time T=N/M, if maximum
Time Tmax=3 × T, when the file transmission time that a size is N is more than Tmax, then it is assumed that be a transmission " high point ".
In the actual environment, it is moved to Sichuan telecommunications from Guangzhou, transmits the file of 100M, bandwidth is 3MB/s, is transmitted 100 times, this is used
High point rate is 56% before invention, and high point rate will be 12% after use.
The present invention includes " connection is forbidden " automatic detecting machine system and dynamic port handover mechanism." connection is forbidden " detects automatically
Mechanism is by recording the number of retransmissions of each data packet in transmitting terminal, when a data packet number of retransmissions reaches certain threshold values,
Determine that connection is prohibited.Dynamic port handover mechanism is when transmitting terminal and receiving end establish a connection, and both sides can assist
Quotient comes out a new source port, and as backup port, that is, there are two four-tuples for a connection.Under normal circumstances, own
Data are all transmitted by one of four-tuple, connect forbidden feelings when having by the discovery of " connection is forbidden " automatic detecting machine system
When condition occurs, it is switched to another four-tuple transmitting data, and renegotiate out a new four-tuple.The present invention passes through
The mechanism of this dynamic transformation port, the problem of being limited with effective solution transmission link infrastructure connection,
Realize the automatic disconnection reconnecting of connection in transport protocol level, it is fully transparent to application layer, and guarantee the stability of data transmission.
Embodiment two
The present invention also provides a kind of data transmission systems based on dynamic port switching, as shown in figure 4, including transmitting terminal
100 and receiving end 200, transmitting terminal 100 connected with receiving end 200 by transmission control protocol.
Specifically,
Transmitting terminal 100 includes: the first transceiver module 101 and port backup module 102.
Receiving end 200 includes: the second transceiver module 201.
Port backup module 102 is used to that backup source port to be arranged in transmitting terminal 100, and carries out source port switching；First receives
Hair module 101 is connect with port backup module 102, for sending message to receiving end 200, and receives the return of receiving end 200
Reply message；Second transceiver module 201 is connect with the first transceiver module 101, for receiving the message of the transmission of transmitting terminal 100, and
It is sent to transmitting terminal 100 and replys message.
As shown in figure 5, transmitting terminal 100 further includes connection status module 103, it is connect with the first transceiver module 101, for sentencing
The connection status of disconnected transmitting terminal and receiving end.
As shown in fig. 6, connection status module 103 specifically includes: packet counting module 1031 and condition judgment module 1032.
Packet counting module 1031 is connect with the first transceiver module 101, is counted for the transmission times to each message；Shape
State judgment module 1032 is connect with packet counting module 1031, for judging transmitting terminal 100 by the transmission times of message and connecing
The connection status of receiving end 200.The judgment rule of condition judgment module 1032 are as follows: when the transmission times of message is less than or equal to preset value
When, judge that transmitting terminal 100 is connect normally with receiving end 200；When the transmission times of message is greater than preset value, transmitting terminal is judged
100 with 200 disconnecting of receiving end or be prohibited.General transmission times preset value is 10, and this is not limited by the present invention.
The transmission end part of data transmission system based on dynamic port switching as shown in Figure 4, can be used as a kind of list
Only data transmission device.The device can be router, is also possible to interchanger or other devices, is also used as server
A part of composed structure, installation is in the server.Details are not described herein by the present invention.
The serial number of the above embodiments of the invention is only for description, does not represent the advantages or disadvantages of the embodiments.
The apparatus embodiments described above are merely exemplary, wherein described, unit can as illustrated by the separation member
It is physically separated with being or may not be, component shown as a unit may or may not be physics list
Member, it can it is in one place, or may be distributed over multiple network units.It can be selected according to the actual needs
In some or all of the modules achieve the purpose of the solution of this embodiment.Those of ordinary skill in the art are not paying creativeness
Labour in the case where, it can understand and implement.
Through the above description of the embodiments, those skilled in the art can be understood that each embodiment can
It realizes by means of software and necessary general hardware platform, naturally it is also possible to pass through hardware.Based on this understanding, on
Stating technical solution, substantially the part that contributes to existing technology can be embodied in the form of software products in other words, should
Computer software product may be stored in a computer readable storage medium, such as ROM/RAM, magnetic disk, CD, including several fingers
It enables and using so that a computer equipment (can be personal computer, server or the network equipment etc.) executes each implementation
Method described in certain parts of example or embodiment.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (11)
1. a kind of data transmission method based on dynamic port switching, which comprises the following steps:
The connection comprising the first source port is established in transmitting terminal and receiving end, and then the second source port is arranged in the transmitting terminal, and leads to
The connection comprising the first source port is crossed, the second source port information is sent to the receiving end；
The transmitting terminal sends message to the receiving end by first source port；
When the transmitting terminal is connect with the receiving end to be prohibited, the transmitting terminal is connect by second source port with described
Receiving end establishes connection and sends message.
2. as described in claim 1 based on dynamic port switching data transmission method, which is characterized in that the transmitting terminal and
Receiving end establish include the first source port connection, then the transmitting terminal is arranged the second source port, and by described comprising the
The specific steps that second source port information is sent to the receiving end include: by the connection of one source port
The transmitting terminal establishes connection by transmission control protocol and the receiving end, and the transmission control protocol passes through four-tuple
The connection is uniquely indicated, the four-tuple includes source internet protocol address, first source port, purpose internet protocol
Discuss address and destination port；
The transmitting terminal selects new port as second source port；
The transmitting terminal constructs message, and second source port information is encapsulated in the message, is sent out by the first source port
Give the receiving end；
After the receiving end receives the message containing second source port information, second source port information is parsed,
Port confirmation message is constructed, the transmitting terminal is sent to.
3. the data transmission method as claimed in claim 2 based on dynamic port switching, which is characterized in that the transmitting terminal structure
Message is made, second source port information is encapsulated in the message, the receiving end is sent to by the first source port
Specific steps include:
The transmitting terminal constructs message, and second source port information is encapsulated in the message, first source is passed through
Mouth is sent to the receiving end；
The transmitting terminal starts timer, sets timing threshold as T, the port confirmation message for waiting the receiving end to reply；
If not receiving the port confirmation message in timing threshold T, the message is retransmitted.
4. the data transmission method as claimed in claim 3 based on dynamic port switching, which is characterized in that the transmitting terminal is logical
First source port, which is crossed, to the specific steps that the receiving end sends message includes:
The transmitting terminal is that transmission times count value, the transmission times count value initial value setting is arranged in each message to be sent
It is 0, the message to be sent is every to send primary, the transmission times count value increase by 1；
The transmitting terminal sends message to the receiving end by first source port.
5. such as the described in any item data transmission methods based on dynamic port switching of Claims 1 to 4, which is characterized in that when
The transmitting terminal is connect with the receiving end when being prohibited, and the transmitting terminal is built by second source port with the receiving end
The vertical specific steps for connecting and sending message include:
Whether the transmitting terminal judges that the transmitting terminal is connect with the receiving end and is prohibited；
If the connection is not prohibited, the transmitting terminal continues through first source port and sends report to the receiving end
Text；
If the connection is prohibited, port handover mechanism is triggered, the transmitting terminal is by second source port to described
Receiving end retransmits the message.
6. the data transmission method as claimed in claim 5 based on dynamic port switching, which is characterized in that the transmitting terminal is sentenced
The transmitting terminal that breaks connect whether forbidden specific steps include: with the receiving end
The transmitting terminal judges whether the message sends success；
The transmitting terminal connect with the receiving end and is not prohibited if sending successfully；
Judge whether the transmission times count value of the message is greater than preset value if transmission is unsuccessful；
If the transmission times count value is less than or equal to preset value, the transmitting terminal connect not banned with the receiving end
Only；
If the transmission times count value is greater than preset value, the transmitting terminal is connect with the receiving end to be prohibited.
7. the data transmission method as claimed in claim 6 based on dynamic port switching, which is characterized in that if described
Connection is prohibited, then triggers port handover mechanism, and the transmitting terminal is sent out by second source port to the receiving end again
Send the message specific steps are as follows: first source port is changed to second source port by the transmitting terminal, is then passed through
Second source port and the receiving end establish connection and send message, and the four-tuple for uniquely indicating the connection is source interconnection
FidonetFido address, second source port, purpose Internet protocol address and destination port.
8. a kind of data transmission system based on dynamic port switching, including transmitting terminal and receiving end, the transmitting terminal and reception
End is connected by transmission control protocol, it is characterised in that:
The transmitting terminal includes:
Port backup module for the second source port to be arranged in the transmitting terminal, and carries out source port switching；
First transceiver module is connect with the port backup module, for sending message and the second source port to the receiving end
Information, and receive the reply message that the receiving end returns；
The receiving end includes:
Second transceiver module is connect with first transceiver module, for receiving the message and the second source that the transmitting terminal is sent
Port information, and sent to the transmitting terminal and reply message.
9. the data transmission system as claimed in claim 8 based on dynamic port switching, which is characterized in that the transmitting terminal is also
Include:
Connection status module is connect, for judging the connection of the transmitting terminal Yu the receiving end with first transceiver module
State.
10. the data transmission system as claimed in claim 9 based on dynamic port switching, which is characterized in that the connection shape
Morphotype block specifically includes:
Packet counting module is connect with first transceiver module, is counted for the transmission times to each message；
Condition judgment module is connect with the packet counting module, for judging the hair by the transmission times of the message
The connection status of sending end and the receiving end.
11. the data transmission system as claimed in claim 10 based on dynamic port switching, which is characterized in that the state is sentenced
The judgment rule of disconnected module are as follows:
When the transmission times of the message is less than or equal to preset value, judge that the transmitting terminal is connect normally with the receiving end；
When the transmission times of the message is greater than preset value, the transmitting terminal and the receiving end disconnecting or banned are judged
Only.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611078535.6A CN106534331B (en) | 2016-11-30 | 2016-11-30 | A kind of data transmission method and system based on dynamic port switching |
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| CN201611078535.6A CN106534331B (en) | 2016-11-30 | 2016-11-30 | A kind of data transmission method and system based on dynamic port switching |
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| CN106534331B true CN106534331B (en) | 2019-10-11 |
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| JP6926707B2 (en) * | 2017-06-14 | 2021-08-25 | 住友電気工業株式会社 | Switch device, communication control method and communication control program |
| CN116366536A (en) * | 2019-02-18 | 2023-06-30 | 中兴通讯股份有限公司 | Link aggregation port switching method, network equipment and computer storage medium |
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| CN101060442A (en) * | 2006-04-22 | 2007-10-24 | 华为技术有限公司 | A linkage status detection device and method |
| CN101510991A (en) * | 2009-04-03 | 2009-08-19 | 杭州华三通信技术有限公司 | Method, apparatus and system for implementing port thermal backup of video signal conference |
| CN101848065A (en) * | 2010-06-04 | 2010-09-29 | 中兴通讯股份有限公司 | Information transmission method and information transmission device |
| CN102025474A (en) * | 2010-12-30 | 2011-04-20 | 北京佳讯飞鸿电气股份有限公司 | Network data transmission method |
| CN102780712A (en) * | 2011-05-09 | 2012-11-14 | 华为技术有限公司 | Conversation switching method and device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101202671A (en) * | 2007-12-20 | 2008-06-18 | 华为技术有限公司 | Method and apparatus for terminal port allocating |
| JP2015156587A (en) * | 2014-02-20 | 2015-08-27 | 富士通株式会社 | Network system, network switch apparatus, and information processing apparatus, and setting method |
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2016
- 2016-11-30 CN CN201611078535.6A patent/CN106534331B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101060442A (en) * | 2006-04-22 | 2007-10-24 | 华为技术有限公司 | A linkage status detection device and method |
| CN101510991A (en) * | 2009-04-03 | 2009-08-19 | 杭州华三通信技术有限公司 | Method, apparatus and system for implementing port thermal backup of video signal conference |
| CN101848065A (en) * | 2010-06-04 | 2010-09-29 | 中兴通讯股份有限公司 | Information transmission method and information transmission device |
| CN102025474A (en) * | 2010-12-30 | 2011-04-20 | 北京佳讯飞鸿电气股份有限公司 | Network data transmission method |
| CN102780712A (en) * | 2011-05-09 | 2012-11-14 | 华为技术有限公司 | Conversation switching method and device |
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