CN102594505A - Data transmission method and device - Google Patents
Data transmission method and device Download PDFInfo
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- CN102594505A CN102594505A CN2012100274712A CN201210027471A CN102594505A CN 102594505 A CN102594505 A CN 102594505A CN 2012100274712 A CN2012100274712 A CN 2012100274712A CN 201210027471 A CN201210027471 A CN 201210027471A CN 102594505 A CN102594505 A CN 102594505A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/24—Negotiation of communication capabilities
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/16—Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
- H04L69/166—IP fragmentation; TCP segmentation
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Abstract
The invention discloses a data transmission method and a device, relates to the communication field, and is used for avoiding fragmentation during the transmission of data messages. The method includes that a first network element obtains the length of increased additional messages during the transmission of the data messages; in the process of establishing communication channels between the first network element and a second network element, the maximum transmission unit (MTU)value confirmed by the first network element and the second network element is modified based on the length of the increased additional messages, so that the first network unit transmits the data messages based on the modified MTU value. The data transmission method and the device are applicable for the communication field for transmitting data messages.
Description
Technical field
The present invention relates to the communications field, relate in particular to a kind of data transmission method and device.
Background technology
(the 3G (Third Generation) Moblie technology, 3rd-generation) mobile data services of network can satisfy user's professional demand of accessing to wide band network whenever and wherever possible, and the rapid speed of transmission data, have obtained market and have favored largely based on 3G.Yet because the 3G frequency is high, decay is big, causes 3G network undesirable in indoor covering, directly has influence on professional the popularizing and promoting of 3G.In order to ensure 3G network at indoor level of coverage and in order to guarantee user's information security; Need configuration SGW (Securtiy GateWay; Security gateway) to set up IPSEC (Internet protocol security; Internet Protocol Security) tunnel, and the communication data content encrypted.Speech business in the 3G network and data service can be encrypted through the IPSEC tunnel between AP (Acess Point, access point) and SGW as required, thereby can increase the length of message.When the length of message is long, need AP that this message is carried out fragment process to carry out slicing transmission; Can in transmission course, cause propagation delay time when adopting slicing transmission, increase the burden of AP, when message fragment is too much, can exceed the load of AP, can cause the transmission of message to be broken down, reduce stability of data transmission.
Summary of the invention
Embodiments of the invention provide a kind of data transmission method and device, can avoid the message of needs transmission is carried out burst, thereby reduce propagation delay time and alleviate the load of AP, to improve the transmission stability and the efficiency of transmission of data message.
For achieving the above object, embodiments of the invention adopt following technical scheme:
On the one hand, the embodiment of the invention provides a kind of data transmission method, and said method comprises:
First network element obtains the length of the extra message that when data message transmission, increases;
Between said first network element and second network element, set up in the process of communication channel; MTU (the MaximumTransmission Unit that said first network element and second network element is confirmed according to the length of the extra message of said increase; MTU) value is made amendment, so that said first network element is according to the said data message of amended MTU value transmission.
On the other hand, the embodiment of the invention also provides a kind of data transmission device, comprises first network element, and said first network element comprises:
Acquiring unit is used to obtain the length of the extra message that when data message transmission, increases;
MTU revises the unit; Be used between said first network element and second network element, setting up the process of communication channel; MTU MTU value according to the length of the extra message of said increase is confirmed said first network element and second network element is made amendment, so that said first network element transmits said data message according to amended MTU value.
Data transmission method that the embodiment of the invention provides and device when first network element and second network element negotiation MTU value, can be made amendment to the MTU value according to the length of the extra message that increases, to avoid that the data message of needs transmission is carried out burst.The method that adopts the embodiment of the invention to provide can be avoided burst in the process of data message transmission, reduce the network processes time delay, can also alleviate the load of first network element simultaneously, improves the transmission stability and the efficiency of transmission of business datum.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The schematic flow sheet of the data transmission method that Fig. 1 provides for one embodiment of the invention;
The schematic flow sheet of the data transmission method that Fig. 2 provides for another embodiment of the present invention;
The schematic flow sheet of the data transmission method that Fig. 3 provides for yet another embodiment of the invention;
The structural representation of the data transmission device that Fig. 4-Fig. 6 provides for further embodiment of this invention.
Embodiment
To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
One embodiment of the invention provides a kind of data transmission method, and is as shown in Figure 1, and said method comprises:
101, first network element obtains the length of the extra message that when data message transmission, increases.
Concrete, said first network element is a network element device that relates in the data transmission procedure, can be AP (Acess Point, access point), also can be other network element devices that possess the data sending function; Said extra message can be the encryption message that increases when treating data message transmission and encrypting, and also can be the message of other purposes of realization of presetting, does not do qualification here.
102, between said first network element and second network element, set up in the process of communication channel; First network element is made amendment to said first network element and the definite MTU value of second network element according to the length of the extra message of said increase, so that said first network element is according to the said data message of amended MTU value transmission.Wherein, said second network element is the equipment that receives said data message, can be the SGW (Securtiy GateWay, security gateway) that receives said data message, also can be the data message receiving equipment of other types, does not do qualification here.
What be worth explanation is, the MTU value is the maximum amount of data that the individual data bag can transmit in first network element and second network element when setting up communication channel according to Transmission Control Protocol, the definite current communication channel.In the time in data transmission procedure, need encrypting to the data message; Need in said data message, increase and encrypt message; Make the length of whole message increase, cause first network element when the message that transmits after encrypting, to need burst, can increase the load of first network element and increase propagation delay time.
Concrete; In the data transmission method that present embodiment provides, amended MTU value causes under the situation of message length increase so that data message waiting for transmission is carried out encryption at first network element less than initial MTU value; Need not said data message waiting for transmission is carried out burst; Wherein, initial MTU value is confirmed after being held consultation according to TCP (Transmission Control Protocol, transmission control protocol) by first network element and second network element.
The data transmission method that the embodiment of the invention provides, when first network element and second network element negotiation MTU value, first network element can be made amendment to the MTU value according to the length of the extra message that increases, to avoid that the message of needs transmission is carried out burst.The method that adopts the embodiment of the invention to provide can be avoided burst in the process of data message transmission, reduce the network processes time delay, can also alleviate the load of first network element simultaneously, improves the transmission stability and the efficiency of transmission of business datum.
Another embodiment of the present invention provides a kind of data transmission method, and is as shown in Figure 2, and said method comprises:
201, the data message of first network element receiving terminal transmission.
Concrete, said first network element can be AP (Acess Point, an access point), but is not limited only to this; Said terminal can be smart mobile phone, panel computer etc.General, the data message that the terminal will be transmitted sends to said first network element through eating dishes without rice or wine, so that said first network element carries out encryption to said data message, to guarantee the information security of user data.Optional, said terminal also can be other-end equipment such as notebook computer.
202, first network element obtains the length of the extra message that increases when the data message transmission according to preset rules.
Concrete; Said extra message comprises TCP (Transmission Control Protocol; Transmission control protocol) heading of tcp data bag of regulation, and the encryption message that increases when data message waiting for transmission being encrypted according to preset rules, but be not limited only to this.For example, in data transmission procedure, the communication data message is carried out IPSEC and encrypt, then need increase and encrypt message to guarantee the fail safe of user communication data to said communication data message.
General; Before the transmission data; Need carry out three-way handshake setting up communication channel according to Transmission Control Protocol, the method that the embodiment of the invention provides can be made amendment to the MTU value in first network element and second network element are set up the process of communication channel, and detailed process is following:
203, first network element is made amendment to the MTU value of self according to the length of the extra message of said increase, with the MTU value of the result who obtains after as first revision.Concrete, first network element can deduct the length of said extra message from the MTU value of self, with the MTU value of the result who obtains after as first revision.
204, first network element sends a SYN (Synchronize Sequence Numbers to second network element; The synchronizing sequence numbering) bag is shaken hands to accomplish for the first time; Said SYN bag is used to notify said second network element to connect, comprising the MTU value of said first network element.
Concrete, said second network element specifically can be the SGW (SecurtiyGateWay, security gateway) that receives said data message, also can be the data message receiving equipment of other types, does not do qualification here
205, second network element receives said SYN bag; Return an ACK (Acknowledgement to said first network element; Affirmation) message and the 2nd SYN bag is to accomplish second handshake, and wherein, a said ACK message is the response message about said SYN bag; Said the 2nd SYN bag is used to indicate said first network element to connect, comprising the MTU value of said second network element.
206, first network element obtains the MTU value of said second network element from said the 2nd SYN bag, and the MTU value of said second network element is deducted the length of said extra message, with the result who obtains as the MTU value after secondly revising.
207, MTU value and the MTU value said second revision after of first network element after with said first revision compared; Therefrom choose smaller value as amended MTU value; According to said amended MTU value to MSS (the Maximum Segment Size in said the 2nd SYN bag; The maximum segment size) value is made amendment, and said MSS value is used to characterize the MTU value.
208, said first network element sends the 2nd ACK message to said second network element and shakes hands for the third time to accomplish; Between said first network element and second network element, to set up communication channel with data message transmission; Wherein, said the 2nd ACK message is the response message about said the 2nd SYN bag.
209, first network element carries out encryption according to preset rules to the data message that receives, and obtains the data encrypted message.Concrete, said data message has increased encrypted messages through after the encryption, so data message length after encryption can increase.General, first network element can be set up IPSEC (Internet protocol security, Internet Protocol Security) tunnel with second network element, the data message is carried out IPSEC encrypt.
Being worth explanation, MTU value is the maximum amount of data that the individual data bag can transmit in first network element and second network element when setting up communication channel according to Transmission Control Protocol, the definite current communication channel.In the time in data transmission procedure, need encrypting to the data message; Need in said data message, increase and encrypt message; Make the length of whole message increase, cause first network element when the message that transmits after encrypting, to need burst, can increase the load of first network element and increase propagation delay time.In embodiments of the present invention, because the actual MTU value that can transmit is compared lessly in amended MTU value and the current network, its difference is the length of the encryption message of increase, so when transmitting the data encrypted message, can avoid burst.
Optional; First network element is when making amendment to the MTU value; Also can further reduce amended MTU value; Make amended MTU value more than or equal to the actual MTU value that can transmit in the current network, be less than or equal to the actual maximum message segment length that can transmit in the current network with the length of guaranteeing the data encrypted message.
210, first network element is sent to second network element with the data encrypted message, to accomplish the transmission of data message.
What be worth explanation is that the data transmission method that the embodiment of the invention provides is mainly used in the uBro networking model, also can be applied to adopt the ethernet network of other networking models, does not do qualification here.
Method that the embodiment of the invention provides realizes is AP to the send datagram scene of literary composition of SGW.Conspicuous, the method that the embodiment of the invention provides also can realize SGW to AP send datagram the literary composition scene, at this moment, first network element is SGW, second network element is AP.That is to say that the method that the embodiment of the invention provides can realize in the data transmission procedure transfer of data between 2 network element devices, repeats no more here.
The data transmission method that the embodiment of the invention provides, when first network element and second network element negotiation MTU value, first network element can be made amendment to the MTU value according to the length of the extra message that increases, to avoid that the message of needs transmission is carried out burst.The method that adopts the embodiment of the invention to provide can be avoided burst in the process of data message transmission, reduce the network processes time delay, can also alleviate first network element load simultaneously, improves the transmission stability and the efficiency of transmission of business datum.
Another embodiment of the present invention provides a kind of data transmission method, and is as shown in Figure 3, and said method comprises:
301, the data message of first network element receiving terminal transmission.
Concrete, said first network element can be AP (Acess Point, an access point), but is not limited only to this; Said terminal can be smart mobile phone, panel computer etc.; General; The data message that said terminal will be transmitted sends to said first network element through eating dishes without rice or wine, so that said first network element carries out encryption to said data message, to guarantee the information security of user data.Optional, said terminal also can be other-end equipment such as notebook computer.
302, first network element obtains the length of the extra message that increases when the data message transmission according to preset rules.
Concrete, said extra message comprises the heading of the tcp data bag of Transmission Control Protocol regulation, and the encryption message that increases when according to preset rules data message waiting for transmission being encrypted, but is not limited only to this.For example, in data transmission procedure, the communication data message is carried out IPSEC and encrypt, then need increase and encrypt message to guarantee the fail safe of user communication data to said communication data message.
303, between first network element and second network element, carry out three-way handshake setting up communication channel, obtain from the network element device between said first network element and second network element and allow the minimum MTU value passed through between said first network element and second network element according to Transmission Control Protocol.Concrete, said second network element can be the SGW that receives said data message, also can be the data message receiving equipment of other types, does not do qualification here.
Concrete; Network element device between said first network element and second network element is supported Internet Control Message Protocol ICMP (Internet Control Message Protocol; ICMP) surveys; Can between said first network element and second network element, set up in the process of communication channel, detect and allow the minimum MTU value passed through between said first network element and second network element.Wherein, said network element device can detect automatically and allow the minimum MTU value passed through between said first network element and second network element, and said network element device can be a router, can be switch also, is not limited only to this.
304, first network element deducts the minimum MTU value that allows between said first network element and second network element to pass through the length of said extra message; Obtain amended MTU value, the SYN message that sends in the three-way handshake process is made amendment according to said amended MTU value.
Concrete, first network element can be made amendment to the MSS value in the said SYN message according to said amended MTU value, and said MSS value is used to characterize the MTU value.
305, first network element carries out encryption according to preset rules to the data message that receives, and obtains the data encrypted message.Concrete, said data message has increased encrypted messages through after the encryption, so data message length after encryption can increase.General, first network element can be set up the IPSEC tunnel with second network element, the data message is carried out IPSEC encrypt.
Being worth explanation, MTU value is the maximum amount of data that the individual data bag can transmit in first network element and second network element when setting up communication channel according to Transmission Control Protocol, the definite current communication channel.In the time in data transmission procedure, need encrypting to the data message; Need in said data message, increase and encrypt message; Make the length of whole message increase, cause first network element when the message that transmits after encrypting, to need burst, can increase the load of first network element and increase propagation delay time.In embodiments of the present invention, because the actual MTU value that can transmit is compared lessly in amended MTU value and the current network, its difference is the length of the encryption message of increase, so when transmitting the data encrypted message, can avoid burst.
Optional; First network element is when making amendment to the MTU value; Also can further reduce amended MTU value; Make amended MTU value more than or equal to the actual MTU value that can transmit in the current network, be less than or equal to the actual maximum message segment length that can transmit in the current network with the length of guaranteeing the data encrypted message.
306, first network element is sent to second network element with the data encrypted message, to accomplish the transmission of data message.
What be worth explanation is that the data transmission method that the embodiment of the invention provides is mainly used in the uBro networking model, also can be applied to adopt the ethernet network of other networking models, does not do qualification here.
Method that the embodiment of the invention provides realizes is AP to the send datagram scene of literary composition of SGW.Conspicuous, the method that the embodiment of the invention provides also can realize SGW to AP send datagram the literary composition scene, at this moment, first network element is SGW, second network element is AP.That is to say that the method that the embodiment of the invention provides can realize in the data transmission procedure transfer of data between 2 network element devices, repeats no more here.
The data transmission method that the embodiment of the invention provides; Network element device can detect and allow the minimum MTU value passed through between first network element and second network element; First network element can be made amendment to said minimum MTU value according to the length of the extra message that increases, to avoid that the message of needs transmission is carried out burst.The method that adopts the embodiment of the invention to provide can be avoided burst in the process of data message transmission, reduce the network processes time delay, can also alleviate first network element load simultaneously, improves the transmission stability and the efficiency of transmission of business datum.
Further embodiment of this invention provides a kind of data transmission device, and is as shown in Figure 4, and said data transmission device comprises first network element, can realize the method for the first network element side among the said method embodiment, and said first network element comprises:
Acquiring unit 41 is used to obtain the length of the extra message that when data message transmission, increases;
MTU revises unit 42; Be used between said first network element and second network element, setting up the process of communication channel; MTU value according to the length of the extra message of said increase is confirmed said first network element and second network element is made amendment, so that said first network element transmits said data message according to amended MTU value.Wherein, said second network element is the equipment that receives said data message.
Concrete, the length of the extra message that said first acquiring unit 41 obtains can be the length of the encryption message that increases when said data message is encrypted.
Said MTU revises unit 42 and specifically is used at said first network element and second network element according to TCP (Transmission Control Protocol; Transmission control protocol) carries out three-way handshake with in the process of setting up communication channel; Length according to said extra message is made amendment to said first network element and the definite MTU value of second network element, so that said first network element is according to the said data message of amended MTU value transmission.
Further, as shown in Figure 5, said MTU revises unit 42 and comprises that first revises subelement 421, the second modification subelement 422 and handle subelement 423, wherein:
First revises subelement 421 is used for when said first network element and second network element carry out shaking hands the first time, and the MTU value of this first network element is deducted the length of said extra message, obtains the MTU value after the first revision;
Second revises subelement 422 is used for when said first network element and second network element carry out second handshake, obtaining the said second network element MTU value, and the MTU value of this second network element is deducted the length of said extra message, the MTU value after obtaining secondly revising;
According to data transmission device shown in Figure 4, further as shown in Figure 6, said MTU revises unit 42 and comprises that also MTU obtains subelement the 424, the 3rd and revises subelement 425, wherein:
MTU obtains the process that subelement 424 is used between said first network element and second network element, setting up communication channel; Obtain from the network element device between said first network element and second network element and to allow the minimum MTU value passed through between said first network element and second network element, wherein, said network element device is supported icmp probe; Can detect and allow the minimum MTU value passed through between first network element and second network element; Said network element device can be a router, also can be switch, does not do qualification here;
The 3rd revises the length that subelement 425 is used for the minimum MTU value that said permission is passed through is deducted said extra message, obtains amended MTU value, so that said first network element is according to the said data message of said amended MTU value transmission.
What be worth explanation is that the data transmission device that the embodiment of the invention provides is mainly used in the uBro networking model, but also can be applied to adopt the ethernet network of other networking models, does not do qualification here.
The data transmission device that the embodiment of the invention provides can be made amendment to allowing the minimum MTU value of transmission between the data transmission set according to the length of the extra message that increases, to avoid that the message of needs transmission is carried out burst.The device that adopts the embodiment of the invention to provide can be avoided burst in the process of data message transmission, reduce the network processes time delay, can also alleviate first network element load simultaneously, improves the transmission stability and the efficiency of transmission of business datum.
Through the description of above execution mode, the those skilled in the art can be well understood to the present invention and can realize by the mode that software adds essential common hardware, can certainly pass through hardware, but the former is better execution mode under a lot of situation.Based on such understanding; The part that technical scheme of the present invention contributes to prior art in essence in other words can be come out with the embodied of software product, and this computer software product is stored in the storage medium that can read, like the floppy disk of computer; Hard disk or CD etc.; Comprise some instructions with so that computer equipment (can be personal computer, server, the perhaps network equipment etc.) carry out the described method of each embodiment of the present invention.
The above; Be merely embodiment of the present invention, but protection scope of the present invention is not limited thereto, any technical staff who is familiar with the present technique field is in the technical scope that the present invention discloses; Can expect easily changing or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of said claim.
Claims (10)
1. a data transmission method is characterized in that, comprising:
First network element obtains the length of the extra message that when data message transmission, increases;
Between said first network element and second network element, set up in the process of communication channel; MTU MTU value according to the length of the extra message of said increase is confirmed said first network element and second network element is made amendment, so that said first network element transmits said data message according to amended MTU value.
2. data transmission method according to claim 1 is characterized in that, said extra message is the encryption message that increases when said data message is encrypted.
3. data transmission method according to claim 2; It is characterized in that; Saidly between said first network element and second network element, set up in the process of communication channel; MTU MTU value according to the length of the extra message of said increase is confirmed said first network element and second network element is made amendment, so that said first network element transmits said data message according to amended MTU value, comprising:
Said first network element and second network element carry out according to transmission control protocol TCP three-way handshake with the process of setting up communication channel in; Said first network element is made amendment to said first network element and the definite MTU MTU value of second network element according to the length of said extra message, so that said first network element is according to the said data message of amended MTU value transmission.
4. data transmission method according to claim 3; It is characterized in that; Said said first network element and second network element carry out according to transmission control protocol TCP three-way handshake with the process of setting up communication channel in; Said first network element is made amendment to said first network element and the definite MTU MTU value of second network element according to the length of said extra message, so that said first network element comprises according to the said data message of amended MTU value transmission:
When said first network element and second network element carry out shaking hands the first time, the MTU value of this first network element is deducted the length of said extra message, obtain the MTU value after the first revision;
When said first network element and second network element carry out second handshake, obtain the MTU value of said second network element, and the MTU value of this second network element is deducted the length of said extra message, the MTU value after obtaining secondly revising;
MTU value after the said first revision and the MTU value after the said second revision are compared, therefrom choose smaller value, so that said first network element is according to the said data message of said amended MTU value transmission as amended MTU value.
5. method according to claim 2; It is characterized in that; Saidly between said first network element and second network element, set up in the process of communication channel; MTU MTU value according to the length of the extra message of said increase is confirmed said first network element and second network element is made amendment, so that said first network element transmits said data message according to amended MTU value, also comprises:
Between said first network element and second network element, set up in the process of communication channel; Obtain from the network element device between said first network element and second network element and to allow the minimum MTU value passed through between said first network element and second network element; Wherein, Said network element device is supported the Internet Control Message Protocol icmp probe, can detect and allow the minimum MTU value passed through between said first network element and second network element;
The minimum MTU value that said first network element passes through permission between said first network element and second network element deducts the length of said extra message, obtains amended MTU value, so that said first network element is according to the said data message of said amended MTU value transmission.
6. a data transmission device comprises first network element, it is characterized in that, said first network element comprises:
Acquiring unit is used to obtain the length of the extra message that when data message transmission, increases;
MTU revises the unit; Be used between said first network element and second network element, setting up the process of communication channel; MTU MTU value according to the length of the extra message of said increase is confirmed said first network element and second network element is made amendment, so that said first network element transmits said data message according to amended MTU value.
7. data transmission device according to claim 6 is characterized in that, the length of the extra message that said first acquiring unit obtains is the length of the encryption message that increases when said data message is encrypted.
8. data transmission device according to claim 7; It is characterized in that; Said MTU revises the unit and specifically is used for carrying out three-way handshake to set up the process of communication channel at said first network element and second network element according to transmission control protocol TCP; Length according to said extra message is made amendment to said first network element and the definite MTU value of second network element, so that said first network element is according to the said data message of amended MTU value transmission.
9. data transmission device according to claim 8 is characterized in that, said MTU revises the unit and comprises:
First revises subelement, is used for when said first network element and second network element carry out shaking hands the first time, and the MTU value of this first network element is deducted the length of said extra message, obtains the MTU value after the first revision;
Second revises subelement, is used for when said first network element and second network element carry out second handshake, obtaining the said second network element MTU value, and the MTU value of this second network element is deducted the length of said extra message, the MTU value after obtaining secondly revising;
Handle subelement; Be used for MTU value after the said first revision and the MTU value after the said second revision are compared; Therefrom choose smaller value as amended MTU value, so that said first network element is according to the said data message of said amended MTU value transmission.
10. device according to claim 7 is characterized in that, said MTU revises the unit and comprises:
MTU obtains subelement; Be used between said first network element and second network element, setting up the process of communication channel; Obtain from the network element device between said first network element and second network element and to allow the minimum MTU value passed through between said first network element and second network element; Wherein, said network element device is supported the Internet Control Message Protocol icmp probe, can detect and allow the minimum MTU value passed through between said first network element and second network element;
The 3rd revises subelement; Be used for the minimum MTU value that allows between said first network element and second network element to pass through is deducted the length of said extra message; Obtain amended MTU value, so that said first network element is according to the said data message of said amended MTU value transmission.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100274712A CN102594505A (en) | 2012-02-08 | 2012-02-08 | Data transmission method and device |
| PCT/CN2012/083403 WO2013117090A1 (en) | 2012-02-08 | 2012-10-24 | Data transmission method and device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100274712A CN102594505A (en) | 2012-02-08 | 2012-02-08 | Data transmission method and device |
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| CN102594505A true CN102594505A (en) | 2012-07-18 |
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| CN2012100274712A Pending CN102594505A (en) | 2012-02-08 | 2012-02-08 | Data transmission method and device |
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| WO (1) | WO2013117090A1 (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103023777A (en) * | 2012-11-27 | 2013-04-03 | 杭州华三通信技术有限公司 | Method and equipment for obtaining global minimum and maximum transmission unit values |
| CN103117949A (en) * | 2013-01-24 | 2013-05-22 | 杭州华三通信技术有限公司 | Message transmission method and device based on LSP (label-switched path) tunnels |
| WO2013117090A1 (en) * | 2012-02-08 | 2013-08-15 | 华为技术有限公司 | Data transmission method and device |
| CN103475596A (en) * | 2013-08-30 | 2013-12-25 | 广州市动景计算机科技有限公司 | MTU (Maximum Transmission Unit)-based middleware and mobile terminal data transmission method and system |
| CN103797836A (en) * | 2013-09-18 | 2014-05-14 | 华为技术有限公司 | Scheduling method and base station |
| CN104618275A (en) * | 2015-01-21 | 2015-05-13 | 大唐移动通信设备有限公司 | Fragmentation processing method and equipment |
| CN105323796A (en) * | 2014-06-12 | 2016-02-10 | 智邦科技股份有限公司 | Method for determining maximum segment size |
| WO2016192402A1 (en) * | 2015-06-03 | 2016-12-08 | 中兴通讯股份有限公司 | Method and apparatus for adjusting maximum transmission unit of ipv6 tunnel |
| CN107528792A (en) * | 2016-06-21 | 2017-12-29 | 中兴通讯股份有限公司 | MSS amending method, apparatus and system |
| CN107566173A (en) * | 2017-08-29 | 2018-01-09 | 深圳天珑无线科技有限公司 | Mobile terminal sets the method and device of MTU |
| CN111817886A (en) * | 2020-06-29 | 2020-10-23 | 新华三信息安全技术有限公司 | Method and equipment for acquiring management object data |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2013117090A1 (en) * | 2012-02-08 | 2013-08-15 | 华为技术有限公司 | Data transmission method and device |
| CN103023777A (en) * | 2012-11-27 | 2013-04-03 | 杭州华三通信技术有限公司 | Method and equipment for obtaining global minimum and maximum transmission unit values |
| CN103023777B (en) * | 2012-11-27 | 2015-11-25 | 杭州华三通信技术有限公司 | A kind of method and apparatus obtaining universe minimax transmission unit value |
| CN103117949B (en) * | 2013-01-24 | 2016-08-10 | 杭州华三通信技术有限公司 | A kind of message transmitting method based on lsp tunnel and equipment |
| CN103117949A (en) * | 2013-01-24 | 2013-05-22 | 杭州华三通信技术有限公司 | Message transmission method and device based on LSP (label-switched path) tunnels |
| CN103475596A (en) * | 2013-08-30 | 2013-12-25 | 广州市动景计算机科技有限公司 | MTU (Maximum Transmission Unit)-based middleware and mobile terminal data transmission method and system |
| CN103475596B (en) * | 2013-08-30 | 2016-08-17 | 广州市动景计算机科技有限公司 | The data transmission method of middleware based on MTU value and mobile terminal and system |
| CN103797836A (en) * | 2013-09-18 | 2014-05-14 | 华为技术有限公司 | Scheduling method and base station |
| CN103797836B (en) * | 2013-09-18 | 2017-12-01 | 华为技术有限公司 | Dispatching method and base station |
| CN105323796A (en) * | 2014-06-12 | 2016-02-10 | 智邦科技股份有限公司 | Method for determining maximum segment size |
| CN105323796B (en) * | 2014-06-12 | 2019-05-17 | 智邦科技股份有限公司 | Method for determining maximum segment size |
| CN104618275A (en) * | 2015-01-21 | 2015-05-13 | 大唐移动通信设备有限公司 | Fragmentation processing method and equipment |
| WO2016192402A1 (en) * | 2015-06-03 | 2016-12-08 | 中兴通讯股份有限公司 | Method and apparatus for adjusting maximum transmission unit of ipv6 tunnel |
| CN107528792A (en) * | 2016-06-21 | 2017-12-29 | 中兴通讯股份有限公司 | MSS amending method, apparatus and system |
| CN107566173A (en) * | 2017-08-29 | 2018-01-09 | 深圳天珑无线科技有限公司 | Mobile terminal sets the method and device of MTU |
| CN111817886A (en) * | 2020-06-29 | 2020-10-23 | 新华三信息安全技术有限公司 | Method and equipment for acquiring management object data |
| CN111817886B (en) * | 2020-06-29 | 2023-12-26 | 新华三信息安全技术有限公司 | Method and equipment for acquiring management object data |
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