CN103618678A - Method, device and system for self-adaptation multiple-link aggregation - Google Patents

Method, device and system for self-adaptation multiple-link aggregation Download PDF

Info

Publication number
CN103618678A
CN103618678A CN201310581432.1A CN201310581432A CN103618678A CN 103618678 A CN103618678 A CN 103618678A CN 201310581432 A CN201310581432 A CN 201310581432A CN 103618678 A CN103618678 A CN 103618678A
Authority
CN
China
Prior art keywords
message
communication link
pong
receiving terminal
time
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201310581432.1A
Other languages
Chinese (zh)
Inventor
潘云登
王晓玲
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Star Net Ruijie Networks Co Ltd
Original Assignee
Beijing Star Net Ruijie Networks Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Beijing Star Net Ruijie Networks Co Ltd filed Critical Beijing Star Net Ruijie Networks Co Ltd
Priority to CN201310581432.1A priority Critical patent/CN103618678A/en
Publication of CN103618678A publication Critical patent/CN103618678A/en
Pending legal-status Critical Current

Links

Images

Landscapes

  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

The invention provides a method, device and system for self-adaptation multiple-link aggregation. The method includes the steps of the step 1, distributing message numbers to messages in a dataflow to be sent, wherein the message numbers are increased sequentially along with the sending sequence of the messages, and the step 2, selecting one communication link for each message in a scheduling queue, carrying out MUDP packaging on the messages according to the communication links, and sending the messages subjected to the MUDP packaging to a receiving end through the communication links. According to the technical scheme, a single message serves as a triggering object for communication link selection, the defect that data transmission is carried out only through single dataflow in the prior art is overcome, the single dataflow can be transmitted through different communication links, the upper limit of available bandwidth of one dataflow is no longer limited by bandwidth of a single link, and therefore the multiple-link aggregation is achieved and communication speed and quality are improved; meanwhile, load balance of the multiple communication links is achieved.

Description

The method of self adaptation multi-link aggregated, Apparatus and system
Technical field
The present invention relates to the communication technology, relate in particular to a kind of method, Apparatus and system of self adaptation multi-link aggregated.
Background technology
Current, informatization has become the important component part of enterprise development, a large amount of office data need to be transmitted in each branch of enterprise, but due to reasons such as funds, regions, the network bandwidth and link-quality have become the large bottleneck of one in IT application in enterprise process.Now the network topologies of the total somatotype of great majority enterprise have following feature: (1) general headquarters adopt many optical fiber links to connect Internet(the Internets), link bandwidth is large, quality is high, expensive; (2) branch adopts many adsl links to connect Internet, and link bandwidth is little, of poor quality, cheap, conventionally between branch and general headquarters, has the situation of cross operator access; (3) server disposition is in general headquarters' internal network, and branch is by Internet upload and download data.
For this network topology with multilink outlet, current outlet gateway device possesses multilink outlet load-balancing function conventionally, according to different link bandwidths, time delay, load, carry out rational assignment of traffic, thereby improve the utilization ratio of link circuit resource, cost saving.Yet the operation principle of multi-link load balance is to carry out Route Selection based on data flow, all messages of same data flow all can be routed on same outbound.Therefore, multilink outlet load-balancing function cannot solve following two class problems, they are extensively present in the network application of current total somatotype enterprise: (1) branch often carries out data upload and download by Internet and headquarters server, and whole process is only carried out transfer of data by wall scroll stream conventionally.In this case, multilink outlet load-balancing function cannot make full use of the bandwidth of multilink, causes transmitting procedure limited by wall scroll adsl link, slow, the consuming time length of transmission speed; (2) the crucial application of some between branch and general headquarters, as video conference, possesses the features such as data flow is few, the duration is long conventionally.When there is intermittent defect in certain link, although multilink outlet load-balancing function can be when key application reconnects by data flow selecting on another normal link, cannot ensure that crucial application do not interrupt.
Summary of the invention
Many aspects of the present invention provide a kind of method, Apparatus and system of self adaptation multi-link aggregated, to improve communication speed and quality.
First aspect of the present invention, provides a kind of method of self adaptation multi-link aggregated, comprising:
For the message assignment message numbering in data flow to be sent, described message numbering is along with the sending order of message increases progressively successively;
For each message is selected a communication link in scheduling queue, and according to described communication link, described message is carried out to multilink user's datagram protocol MUDP encapsulation, by described communication link, the message after MUDP encapsulation is sent to receiving terminal.
Second aspect of the present invention, provides a kind of method of self adaptation multi-link aggregated, comprising:
Message after a plurality of MUDP encapsulation that receiving end/sending end sends by least two communication links;
According to described transmitting terminal, be the message numbering that described message distributes, the message after a plurality of MUDP encapsulation that receive is sorted.
The 3rd aspect of the present invention, provides a kind of network equipment, comprising:
Distribution module, is used to the message assignment message numbering in data flow to be sent, and described message numbering is along with the sending order of message increases progressively successively;
Scheduling sending module, be used to each message in scheduling queue, to select a communication link, and according to described communication link, described message is carried out to multilink user's datagram protocol MUDP encapsulation, by described communication link, the message after MUDP encapsulation is sent to receiving terminal.
The 4th aspect of the present invention, provides a kind of network equipment, comprising:
Receiver module, the message after a plurality of MUDP encapsulation that send by least two communication links for receiving end/sending end;
Order module, for according to described transmitting terminal being the message numbering that described message distributes, sorts to the message after a plurality of MUDP encapsulation that receive.
The 5th aspect of the present invention, a kind of communication system is provided, comprises: first network equipment and second network equipment, wherein, described first network equipment is used to the message assignment message numbering in data flow to be sent, and described message numbering is along with the sending order of message increases progressively successively; For each message is selected a communication link in scheduling queue, and according to described communication link, described message is carried out to multilink user's datagram protocol MUDP encapsulation, by described communication link, the message after MUDP encapsulation is sent to receiving terminal; Message after a plurality of MUDP encapsulation that described second network equipment sends by least two communication links for receiving end/sending end; According to described transmitting terminal, be the message numbering that described message distributes, the message after a plurality of MUDP encapsulation that receive is sorted.
As shown from the above technical solution, the technical scheme that the embodiment of the present invention provides is selected a communication link by each message being respectively in data flow, and according to the communication link of selecting, corresponding message is carried out to MUDP encapsulation, and the message after encapsulation is sent to receiving terminal, avoided only by wall scroll data flow, being undertaken in prior art the drawback of transfer of data, can realize wall scroll data flow transmits via different communication links, article one, the available bandwidth upper limit of data flow is no longer subject to the restriction of single link bandwidth, realized multi-link aggregated, speed and the quality of communication have been improved, also realized the load balancing of each communication link simultaneously.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The schematic flow sheet of the method for the self adaptation multi-link aggregated that Fig. 1 provides for the embodiment of the present invention one;
The signalling diagram that Fig. 2 sets up for the communication link that the embodiment of the present invention one provides;
The structural representation of the message that Fig. 3 provides for the embodiment of the present invention one after MUDP encapsulation;
The schematic flow sheet of the method for the self adaptation multi-link aggregated that Fig. 4 provides for the embodiment of the present invention two;
The state transition schematic diagram of the communication link that Fig. 5 provides for the embodiment of the present invention two;
The state transition schematic diagram of the tunnel that Fig. 6 provides for the embodiment of the present invention two;
The schematic flow sheet of the method for the self adaptation multi-link aggregated that Fig. 7 provides for the embodiment of the present invention three;
The message that Fig. 8 provides for the embodiment of the present invention three receives the relative position schematic diagram of each parameter in ring;
The structural representation of the network equipment that Fig. 9 provides for the embodiment of the present invention four;
The structural representation of the network equipment that Figure 10 provides for the embodiment of the present invention five;
The structural representation of the communication system that Figure 11 provides for the embodiment of the present invention six.
Embodiment
For current ubiquitous multilink outlet scene, multi-link load balance can be diverted to different data flow different chain way outlet transmission, yet same data flow is still subject to the restriction of single link bandwidth.That is to say, for the less key application of number of data streams between enterprise branch office, as OA system and video conference, the outbound quantity and the bandwidth that because of multilink, increase cannot be fully utilized.Technical scheme provided by the invention can realize the polymerization of multilink bandwidth and use, and has expanded the bandwidth upper limit that crucial application can utilize, and can effectively improve communication speed and quality.For making object, technical scheme and the advantage of the embodiment of the present invention clearer, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
The schematic flow sheet of the method for the self adaptation multi-link aggregated that as shown in Figure 1, the embodiment of the present invention one provides.Embodiment illustrated in fig. 1 one executive agent is the network equipment, and the described network equipment can be gateway device, routing device or wide area network acceleration equipment etc.As shown in Figure 1, the method comprises:
Step 101, be message assignment message in data flow to be sent numbering, described message numbering is along with the sending order of message increases progressively successively.
Wherein, in described data flow to be sent, include one or more messages.
Step 102, for each message, in scheduling queue, select a communication link, and according to described communication link, described message is carried out to MUDP(Multipath User Datagram Protocol, multilink user's datagram protocol) encapsulation, is sent to receiving terminal by described communication link the message after MUDP encapsulation.
Particularly, in described scheduling queue, store a plurality of communication links.Described a plurality of communication links are in the Internet or the network equipment at other communication network two ends is set up, and the network equipment in network two ends carries out the transmission of message by the communication link of setting up.In two network equipments at network two ends set up and opposite end between communication link after, the communication link of be about to setting up joins in described scheduling queue.For example, what in described scheduling queue, store can be the sign of each communication link, and the sign of described communication link can be that the described network equipment and the opposite end network equipment communicate when link establishment is consulted is that described communication link distributes.Communication link described in the embodiment of the present invention can be virtual communication link, it is the restriction that the embodiment of the present invention is broken single physical communication link, a plurality of physical communication links between network terminal device are carried out to abstract integration, can the communication link of abstract integration be divided into a plurality of virtual communication links with the network port.The use of port Network Based, makes many virtual communication links can multiplexing same physical communication link.Particularly, the network equipment at described network two ends can be adopted the foundation that realizes with the following method communication link, and as shown in Figure 2, the method comprises:
First, transmitting terminal sends the request for building link that carries communication link negotiation result to receiving terminal.
Particularly, described request for building link can be SYN message.Wherein, described communication link negotiation result comprises: the sign of communication link, start message numbering and access rule.The sign of described communication link can specifically comprise link identification in gap marker and passage.Owing to carrying out the multilink of polymerization, need an independently polymerized unit, carry out unified management and scheduling, therefore define an abstract data structure, be called tunnel.Gap marker ID is mainly used in identifying passage, to distinguish different polymerized units, supports the communication port of setting up between enterprise headquarters and different branch.In described passage, link identification is for distinguishing a plurality of communication links in passage.For a communication port, message numbering is unique, and increases progressively by message, carries out the operations such as duplicate message judgement, packet loss recovery, out of order message sequence for opposite end according to message numbering.Start message numbering can Random assignment when each negotiation is set up.Described access rule is specially the rule of the data flow of selecting crucial application.
Here it should be noted that: in actual applications, in order to distinguish the SYN message of newly-built virtual link and the re-transmission SYN message in SSYN message dropping situation, allow RST sign and SYN sign to arrange simultaneously.That is to say, described request for building link can be RST message and SYN message, mean like this if opposite end, in setting up state, is first converted to closed condition by virtual link, then the foundation of holding consultation.In addition, in link establishment process, need in communication link negotiation result except above-mentioned information, extra information can be according to the different corresponding increases of the demand that realizes, negotiate content can be defined in the expansion (this part is described in detail in subsequent content) of multi-link protocol the 3rd stem, and the data division that also can be used as request for building link or link establishment response is organized.
Then, receiving terminal, according to described virtual link negotiation result, is set up response to described transmitting terminal return link.
Wherein, described link establishment response can be SSYN message.
Corresponding with the process of establishing of communication link, the network equipment at described network two ends can disconnect the communication link of having set up with RST message, be that transmitting terminal sends RST message to receiving terminal, receiving terminal returns to corresponding response message to described transmitting terminal, and then has disconnected transmitting terminal and the built vertical communication link of receiving terminal.
Here you need to add is that: if the opposite end of communication link is picture ADSL(Asymmetric Digital Subscriber Line, ADSL (Asymmetric Digital Subscriber Line) link) or 3G communication link, may irregularly there is the communication link of conversion in IP address, communication link just cannot initiate with the object IP fixing to connect so, once otherwise peer IP address converts, communication link cannot be in setting up state.Therefore, whether fixing according to peer IP address, communication link can be divided into aggressive mode and Passive Mode; When the IP address of receiving terminal is not fixedly time, the communication link pattern of can taking the initiative; When the IP address of transmitting terminal is not fixedly time, communication link can be taked Passive Mode.Particularly, the communication link of aggressive mode constantly sends SYN message, makes to lay oneself open to the state of foundation.And the communication link of Passive Mode is the mode to monitor, the SYN message of passive reception opposite end, completes communication link process of establishing.If IP address, two ends is all unfixing, need to carry out transfer by domain name addresses.
Wherein, described in this step, in scheduling queue, select a kind of possible implementation method of a communication link to be: described transmitting terminal can adopt default multilink robin scheduling rule, and each message being respectively in described data flow is selected corresponding communication link.Particularly, described multilink robin scheduling rule is: in selection scheduling queue, come first communication link, and judge that whether the residual capacity of described communication link is greater than the length of described message, if so, selects described communication link; Otherwise, described communication link is adjusted to the tail of the queue of described scheduling queue, the capacity that described communication link is set equals current residual capacity and adds preset capacity quota, and again selects the communication link that comes first in described scheduling queue, until select communication link.Wherein, the capacity of described communication link refers to the current message byte number that can forward of described communication link.Described capacity quota refers to the byte number when the stylish interpolation of off-capacity of described communication link.The size of described capacity quota is directly proportional to the communication link bandwidth of configuration, can dynamically adjust according to the packet loss of communication link, and described capacity quota equals the product of the average message transmission success rate of communication link bandwidth and communication link.Here it should be noted that: above-mentioned scheduling queue can be specially a First Input First Output (First Input First Output, be called for short FIFO), the communication link of setting up by link negotiation at first come scheduling queue before, after the communication link of rear foundation comes.After communication link is successfully established, capacity that can this communication link of initialization is a designated value, for example: described preset capacity quota.The initialization value of the capacity of each communication link can be identical, also can be different.When the residual capacity of described communication link is not more than the length of described message, described communication link is dispatched to tail of the queue, next communication link in while selection scheduling queue, such rotation rule is easy to realize the equilibrium of each link load, and be unlikely to occur that the load of a communication link is excessive, the too small phenomenon of load of another communication link.In addition, the average message transmission success rate of described communication link is described in detail in following embodiment bis-.
A kind of possible implementation of according to described communication link, described message being carried out to MUDP encapsulation described in this step is: the head at described message adds the first stem, the second stem and the 3rd stem, as shown in Figure 3.
Wherein, described the first stem (also or claim IP stem) has identified the two ends of communication link, and it comprises: the source IP address of physical link and object IP address.
Described the second stem (also or claim UDP stem) comprises the length of source port sign, destination interface sign, described the 3rd header length and the described message of described communication link.More specifically, multi-link aggregated internal system is carried out physical link abstract, as one independently data structure manage and safeguard, be called virtual link.The source IP address of physical link and the object IP address of physical link in source port in described the second stem, destination interface, described the first stem have identified a virtual link uniquely.Described message length field has contained the 3rd header length and original message length, makes the 3rd stem only need to indicate header length, can calculate the packaged original message length of MUDP agreement.Further, described the second stem also comprises: whether checksum field, be tampered for detection of the 3rd stem.
Here you need to add is that: MUDP agreement provided by the invention is mainly supported four large functions: virtual link is consulted foundations, message encapsulation, link quality metric and virtual link and disconnected, define respectively type of message SYN/SSYN(and set up for the negotiation of communication link), DATA(is for the transmission of data), PING/PONG(is used for monitoring the quality of communication link) and RST(be used for disconnecting communication link) message.Information that each function need to be carried is different, the stem expense when reducing message encapsulation, and described the 3rd stem (also or claim MUDP stem) can be divided into standing part and expansion, and the sign of the form of expansion in standing part determines.Wherein, the 3rd stem fixed part can comprise: the 3rd header length and for identifying the sign of the type of message of described message.Further, described the 3rd stem standing part also can comprise: protocol version, for subsequent expansion stem form, initial version number can be made as 1.
Here it should be noted that: the message described in the embodiment of the present invention can be any message of IP agreement, therefore, the VPN(Virtual Private Network of any type, VPN (virtual private network)) agreement, comprise PPTP(Point to Point Tunneling Protocol, Point to Point Tunnel Protocol), L2TP(Layer 2 Tunneling Protocol, Level 2 Tunnel Protocol), IPSEC(InternetProtocolSecurity, the Internet protocol security) etc., can both encapsulate by MUDP agreement provided by the invention, to realize multi-link aggregated.
The present embodiment is selected a communication link by each message being respectively in data flow, and according to the communication link of selecting, corresponding message is carried out to MUDP encapsulation, and the message after encapsulation is sent to receiving terminal, avoided only by wall scroll data flow, being undertaken in prior art the drawback of transfer of data, can realize wall scroll data flow transmits via different communication links, article one, the available bandwidth upper limit of data flow is no longer subject to the restriction of single link bandwidth, realized multi-link aggregated, speed and the quality of communication have been improved, also realized the load balancing of each communication link simultaneously.
For the physical link of cross operator, in data transmission procedure, conventionally with packet loss phenomenon.For tcp data stream, its transmission rate is not only relevant with link bandwidth, and also sliding window and the congestion control mechanism by tcp protocol stack determines.Tcp protocol stack, when packet loss being detected, will start congestion control mechanism, dwindle message send window, cause application transport speed to decline.In this case, even if outbound bandwidth has residue, Transmission Control Protocol also cannot make full use of.For the application based on udp protocol, as video conference, also by because packet loss problem occur that video mosaic, picture card pause etc. and affect the phenomenon of user's experience.Thus, the embodiment of the present invention two has proposed the packet loss problem in conjunction with forward error correction technique each communication link when solving self adaptation multi-link aggregated.
Forward error correction, also referred to as redundancy encoding, generates and sends extra redundant message by coding, and in the situation that initial data message is lost, decoding recovers the data message of loss.Comparatively conventional forward error correction algorithm has XOR, Hamming code etc.Because forward error correction has additionally sent redundant message, therefore can cause link bandwidth utilization rate to decline.That is to say, when link does not exist packet loss problem or packet loss when low, the forward error correction strategy of mistake may have a negative impact.For this problem, the embodiment of the present invention two proposes a kind of adaptive forward error correction algorithm, based on RS(Reed-Solomon) encryption algorithm, the redundant message quantity sending according to the present packet loss dynamic adjustments of communication link, when loss recovery function is provided, maximizing bandwidth utilization, realizes multi-link aggregated.
Particularly, with d, represent the data message via virtual link transmission, vectorial D{d 1, d 2... d nbe the data message grouping that a time RS coding is processed, message amount n can determine according to the actual performance of the network equipment.When the data flow traffic that adopts multi-link aggregated method to transmit is low, data message will reach quantity n may need the time of growing, thereby reduced the frequency of forward error correction, introduced extra time delay to generation, transmission and the opposite end decoding recovery message of redundant message.Therefore, the embodiment of the present invention determines the time of forward error correction according to the average delay of the communication link monitoring, even if the not enough n of message amount still carries out forward error correction in time, generates and sends redundant message.Redundant message c forms vectorial C{c 1, c 2... c m, the redundant message quantity that m generates for coding.So, whole cataloged procedure can be expressed as the matrix multiplication shown in following formula.
AD=E
A = 0 0 0 1 0 2 · · · 0 n - 1 1 0 1 1 1 2 · · · 1 n - 1 2 0 2 1 2 2 · · · 2 n - 1 · · · · · · · · · · · · · · · ( n + m - 1 ) 0 ( n + m - 1 ) 1 ( n + m - 1 ) 2 · · · ( n + m - 1 ) n - 1 = I F , E = D C Formula (1)
Wherein, A is the encoder matrix of (n+m) * n, is initialized as model moral gate matrix, and utilizes elementary column number by the capable unit matrix I that is converted into of front n, the capable formation of rear m matrix F.Then, by matrix F and data vector D, multiply each other and can generate redundant message C.
RS encryption algorithm can complete recovery data message in the situation that loss message amount is less than redundant message quantity.Suppose that the message that receive opposite end forms vectorial E ' through the transmission of packet loss circuit, delete in encoder matrix A and lose the row that message is corresponding, equation A ' D=E ' still sets up.Because model moral gate matrix is still reversible after deleting arbitrarily row, and elementary rank transformation can not change rank of matrix, so A ' is still reversible.By calculating D=(A ') -1e ', can recover data vector D, and wherein the inverse matrix of A ' can be utilized elementary rank transformation to carry out Gaussian elimination to calculate.
The schematic flow sheet of the method for the self adaptation multi-link aggregated that as shown in Figure 4, the embodiment of the present invention two provides.As shown in Figure 4, the present embodiment two, based on upper embodiment mono-, also comprises:
Step 201, according to default adaptive forward error correction encryption algorithm, calculate redundant message.
Particularly, a kind of possibility implementation of this step is as follows:
First, monitor the quality of all communication links in described scheduling queue, described quality comprises: the average delay of communication link and average packet loss ratio.
Wherein, the equipment division at network two ends is used PING and the PONG message of MUDP agreement to carry out link quality metric, and in fact PING and PONG message can bear three kinds of functions:
(1) virtual link keep-alive: by regular transmitting-receiving message, carry out the detection of link failure.If virtual link does not receive any message in a period of time, can be judged to be fault.Wherein, described a period of time can be the predefined set time.
(2) link quality metric: for regularly measuring the communication quality of communication link.Communication link quality mainly comprises two aspects: chain-circuit time delay and link packet drop rate.Particularly, chain-circuit time delay: suppose that up-downgoing time delay is close, chain-circuit time delay equals half of link two-way time.Tunnel determines the time of forward error correction coding and the stand-by period of frequency and the rearrangement of out of order message according to the time delay of its lower communication link.Link packet drop rate: the quality condition that reflects in real time link.Tunnel carries out selection scheduling, sends message according to communication link bandwidth generally, but can dynamically adjust according to accumulative total average link quality.The more important thing is, tunnel need to, according to the average packet loss ratio of its lower virtual link redundancy of adapting forward error correction adaptively, to promote the message recovery capability under different packet loss link, maximize the bandwidth availability ratio of link simultaneously.
(3) configuration change is noticed: can notice respectively or cancel functional configuration separately for tunnel two ends, as for selecting the access rule etc. of crucial application data stream, avoid virtual link to disconnect and again consult to set up.Be the portability configuration change information of going back in described PING message or in PONG message, so that described opposite end is carried out corresponding functional configuration according to described configuration change information to described communication link.
Particularly, the quality of described monitoring communication link can employing mode realize, and comprising:
Step S1, by communication link, to receiving terminal, send PING message, described PING message carries the timestamp that transmitting terminal sends described PING message.
Step S2, within the default time, receive the PONG message that described receiving terminal returns, and record receives the time of described PONG message.
Here you need to add is that: if do not receive the described PONG message that described receiving terminal returns in described the first Preset Time, illustrate that described communication link breaks down, and deletes described communication link from described scheduling queue.
Step S3, obtain the average round-trip time that this time receives described communication link before the PONG message that described receiving terminal returns.
Timestamp in the described PING message that step S4, the PONG message returning according to the described receiving terminal that receives by described communication link carry, described in receive the time of the PONG message that described receiving terminal returns, the described average round-trip time that this time receives described communication link before the PONG message that described receiving terminal returns, calculate the time delay of described communication link.
Particularly, timestamp in the described PING message that the PONG message returning according to the described receiving terminal receiving by described communication link carries, described in receive the time of the PONG message that described receiving terminal returns, the described average round-trip time that this time receives described communication link before the PONG message that described receiving terminal returns, adopt following the first computing formula to calculate the time delay of described communication link:
T=[α?RTT last+(1-α)(T PONG-T PING)]/2
Wherein, the time delay that T is described communication link, α is default smoothing factor, RTT lastfor the described average round-trip time that this time receives described communication link before the PONG message that described receiving terminal returns, T pONGfor the described time that receives the PONG message that described receiving terminal returns, T pINGtimestamp in the described PING message that the PONG message returning for described receiving terminal carries.
Step S5, obtain the calculating parameter of described communication link, and according to described calculating parameter, calculate described communication link average packet loss ratio, wherein, described calculating parameter comprises: the accumulative total while sending described PING message by described communication link sends message amount and message byte number, accumulative total during by the last PONG of reception of described communication link message sends message amount and message byte number, the accumulative total of carrying in the PONG message that the described receiving terminal receiving by the described communication link last time returns receives message amount and message byte number, in the PONG message that the described receiving terminal this time receiving by described communication link returns, carry accumulative total receive message amount and message byte number B, and the average transmission success rate that this time receives described communication link before the PONG message that described receiving terminal returns by described communication link.
Particularly, according to described calculating parameter, adopt following the second computing formula to calculate the average packet loss ratio of communication link:
R PKTS=α?R PKTS-last+(1-α)(N PONG-N RECV)/(N PING-N LAST)
R BYTES=α?R BYTES-last+(1-α)(B PONG-B RECV)/(B PING-B LAST)
R ‾ = 1 - ( R PKTS + R BYTES ) / 2
Wherein, α is default smoothing factor, describedly this time receives the average transmission success rate of described communication link before the PONG message that described receiving terminal returns and comprises: message on average sends success rate R pKTS-laston average send success rate R with byte number bYTES-last, N pONGaccumulative total in the PONG message returning for the described receiving terminal this time receiving by described communication link receives message amount, B pONGaccumulative total in the PONG message returning for the described receiving terminal this time receiving by described communication link receives message byte number, N rECVaccumulative total in the PONG message returning for the described receiving terminal receiving by the described communication link last time receives message amount, B rECVaccumulative total in the PONG message returning for the described receiving terminal receiving by the described communication link last time receives message byte number, N pINGaccumulative total when sending described PING message by described communication link sends message amount, B pINGaccumulative total when sending described PING message by described communication link sends message byte number, N lASTaccumulative total when by the last PONG of reception of described communication link message sends message amount, B lASTaccumulative total when by the last PONG of reception of described communication link message sends message byte number.Here it should be noted that: (R in above-mentioned computing formula pKTS+ R bYTES)/2 are that the average message of communication link sends success rate, and this average message sends the capacity quota that success rate can be used for determining described communication link.
Then, according to the average delay of described all communication links, determine time and the frequency of carrying out forward error correction coding.
Subsequently, according to the average packet loss ratio of described all communication links, determine the quantity of calculating redundant message.
Finally, according to the time of carrying out forward error correction coding and the frequency determined, and the quantity of redundant message, adopt RS encryption algorithm to calculate the redundant message of described quantity.
Step 202, in scheduling queue, select a communication link, and according to described communication link, described redundant message is carried out to MUDP encapsulation, by described communication link, the redundant message after MUDP encapsulation is sent to receiving terminal.
Particularly, data message and redundant message all adopt MUDP agreement to encapsulate.For data message, from communication link, to consult start message numbering definite process of establishing and start, each data message takies a numbering, and number information can be used as the expansion field of the 3rd stem in MUDP agreement (being MUDP stem).For redundant message, the start message numbering that header extension informational needs comprises (1) packet D, the i.e. message numbering of d1; (2) the message amount n of packet; (3) sequence number of redundant message, structural matrix A ' during for loss recovery.
Here you need to add is that: because communication link is regularly monitored link-quality with PING and PONG message, therefore no matter whether have data flow to forward via communication link, can both be by judging in a period of time whether communication link receives PONG message and detect link and whether break down.Once certain communication link is monitored to fault, it will transfer malfunction to so, exit scheduling queue.Message in data flow is transmission of communication link in normal connection status via other, thereby reach communication link, mutually backs up, ensures that critical data flows unbroken object.In sum, the state of virtual link can be summarized as following six kinds of states, its state transition as shown in Figure 5: idle condition, listening state, connection status, set up state, malfunction, closed condition.Wherein, described idle condition is to create after communication link when configuration, and communication link is in idle condition.Now, Passive Mode link proceeds to listening state, wait for that opposite end initiation connects, and aggressive mode link is initiatively constructed transmission SYN message, attempts consulting foundation.Listening state is: Passive Mode link inserts Hash table by local ip address and udp port, tackles and respond the SYN message that opposite end sends, and completes negotiation process of establishing.After connection status is link establishment, aggressive mode communication link proceeds to connection status, regularly sends RST+SYN message and attempts consulting to set up.The state of foundation is that link proceeds to the state of foundation if SSYN message is responded in the opposite end of communication link.In setting up the communication link of state, the selection scheduling that scheduling queue participates in tunnel be can join, message encapsulation and transmission carried out.Malfunction is if monitoring out communication link breaks down, and communication link is proceeded to malfunction, temporarily no longer participates in scheduling and sends message, avoids occurring packet loss phenomenon, causes crucial application data stream to interrupt.Communication link in malfunction, if receive PING, PONG or DATA message, proceeds to the state of foundation again, can again be added into and in scheduling queue, participate in selection scheduling.Closed condition is if physical link disconnects or user configures deleting communication link, the communication link in connection, monitoring, foundation, malfunction proceeds to closed condition, and send RST message and notice opposite end and disconnect, carry out the wait of closing in 3 seconds simultaneously, prevent that RST message dropping, opposite end from cannot disconnect in time.The state of communication link has more than been described, correspondingly, has comprised state and the MUDP protocol-independent of the tunnel of a plurality of communication links, quantity and Determines by the communication link under tunnel.The state of tunnel can be divided into closed condition, open mode and set up state.The state transition process of described tunnel is as shown in Figure 6: closed condition: tunnel configures establishment by user, but do not add any communication link, now passage is in closed condition.Tunnel in closed condition can directly be deleted release.Open mode: under tunnel, after adding one or more communication link, passage proceeds to open mode by closed condition.For the tunnel of open mode, all communication links under it attempt holding consultation foundation.Set up state: any communication link under tunnel is consulted to be successfully established, and communication link is added to the scheduling queue of passage, and whole passage proceeds to the state of foundation, in setting up the tunnel of state, can receive message and forward.
The present embodiment two provides a kind of self adaptation multi-link aggregated method of combining adaptive forward error correction algorithm, and comprising link quality metric mechanism, machine-processed inside can also increase other new link quality parameter.The method that adopts the embodiment of the present invention two to provide, has further improved speed and the quality of communication, has reduced the possibility that terminal appears in crucial application, has also realized the load balancing of each communication link simultaneously.In the present embodiment, forward error correction algorithm is not limited to RS encryption algorithm, and other forward error correction algorithm can add multi-link aggregated framework, the confirmation of holding consultation when link negotiation is set up, and define new data encapsulation form and MUDP type of message is supported.Adaptive forward error correction adjustment can be expanded as dynamically adjusting between different forward error correction algorithms and different redundancy degree.
The schematic flow sheet of the method for the self adaptation multi-link aggregated that as shown in Figure 7, the embodiment of the present invention three provides.As shown in Figure 7, the method described in the present embodiment three comprises:
Message after a plurality of MUDP encapsulation that step 301, receiving end/sending end send by least two communication links.
Particularly, the message after a plurality of MUDP encapsulation that the method described in described transmitting terminal employing above-described embodiment one sends.Wherein, the method for the message after the described a plurality of MUDP encapsulation of described transmitting terminal transmission adopts the method described in above-described embodiment one, repeats no more herein.
Step 302, according to described transmitting terminal, be the message numbering that described message distributes, the message after a plurality of MUDP encapsulation that receive is sorted.
Particularly, according to the message numbering of described message, adopt default message to receive ring principle the message receiving is operated accordingly, so that the message receiving is sorted.Further, described message receives ring principle and comprises four parameters: the start message numbering of the transmission message of communication link transmitting terminal, primary importance, the second place and message ring size, as shown in Figure 8.Correspondingly, described according to the message numbering of described message, adopt default message to receive ring principle the message receiving is operated accordingly, so that the message receiving is sorted, comprising:
First, according to the message numbering of the message receiving, described start message numbering and described message ring size, the message receiving described in determining receives the position of ring at described message.
Because the time delay of different links is different, may introduce extra packet out-ordering, therefore in order to solve packet out-ordering, trigger the problem that the congested Hedging mechanism of Transmission Control Protocol causes rate reduction, tunnel, when receiving message, carries out buffer sorting to out of order message according to numbering.In addition, the message of same packet needs buffer memory to recover for losing message.Buffer memory message can adopt chain sheet form to organize.Here, for the efficiency that improves message sequence and search message according to message numbering, message queue adopts length limited but the message that can recycle receives ring to be organized.Message receives the corresponding message numbering of each element of ring, associated data message and redundant message separately.
Then, if described position before described primary importance, described receiving terminal directly abandons this message; If described position between described primary importance and the described second place, the IP address of the object equipment carrying according to described message, by this message repeating to object equipment; If buffer memory, after the described second place, is carried out by described message in described position, and the message of buffer memory is sorted.
Particularly, setting message, to receive ring size be 2 power, guarantee by with the computing processing of unrolling.Receiving topmost four parameters of message ring is:
(1) start message of the transmission message of communication link transmitting terminal numbering Base_pid.For the message of particular number P, can, by the difference between P and Base_pid and message reception ring size are carried out and computing, obtain it and receive the position in ring at message.
(2) primary importance Head: the data message of receiving in expression past Preset Time (as 3 seconds).When receiving the message of message numbering before Head, receiving terminal is selected directly to abandon.
(3) second place Order.When receiving the message of message numbering between Head and Order, the IP address of the object equipment that receiving terminal carries according to described message, by this message repeating to object equipment.When receiving the message of message after Order, receiving terminal carries out buffer memory by described message, and the message of buffer memory is sorted.Wherein, also can introduce parameter, i.e. a Tail here: the next position of pointing to the message of the numbering maximum of receiving.If receive that message numbering is more than or equal to Tail, Tail is updated to the next position of new message.
Each message, when putting into reception message ring, arranges the time of reception stamp of oneself.After the receiving terminal regular check Order of tunnel, whether the time of reception of out of order message surpasses average unidirectional transmission time delay difference between virtual link, if so, forwards the overdue message of all buffer memorys.Wherein, the phase that is cached to described in refers to message time of reception and surpasses average unidirectional transmission time delay difference between virtual link.Due to chain-circuit time delay may be in time, the fluctuation of load, therefore according to virtual link in real time the time delay difference of tolerance carry out out of order sequence, can minimize the transmission time that packet buffer is introduced.
Further, in above-described embodiment three, described described message is carried out to buffer memory after, also comprise:
First, record the time of described packet buffer.
Then, according to the time of described packet buffer, whether the message of monitoring buffer memory expires, the IP address of the object equipment if so, carrying according to described message, by the overdue message repeating of described buffer memory to object equipment, otherwise, continue message described in buffer memory.
Here it should be noted that: each embodiment provided by the invention can be applied to export gateway device, router device or wide area network acceleration equipment, link layer protocol and Linktype that can be compatible different, as optical fiber link, ADSL dial-up link and 3G wireless link etc., in addition, the VPN agreement of any type, comprises PPTP, L2TP, IPSEC etc., can both realize multi-link aggregated by the encapsulation of multi-link protocol.The method that various embodiments of the present invention provide can be combined with wide area network speed technology or equipment, to improve crucial application data stream transmission rate.With respect to wide area network speed technology, be mainly used in acceleration and the optimization of Transmission Control Protocol, self adaptation multi-link aggregated system brings effective lifting can to the data stream transmitting based on IP agreement arbitrarily, comprises Transmission Control Protocol, udp protocol and various VPN agreements etc.Especially the key application of this class of video conference based on udp protocol, its transmission data do not possess compressibility and repeatability, wide area network speed technology cannot play a role, and self adaptation multi-link aggregated system can significantly promote the maximum bandwidth of transfer of data and solve circuit packet loss problem, be intuitively embodied in that video resolution significantly increases, mosaic obviously reduces.
It should be noted that: for aforesaid each embodiment of the method, for simple description, therefore it is all expressed as to a series of combination of actions, but those skilled in the art should know, the present invention is not subject to the restriction of described sequence of movement, because according to the present invention, some step can adopt other orders or carry out simultaneously.Secondly, those skilled in the art also should know, the embodiment described in specification all belongs to preferred embodiment, and related action and module might not be that the present invention is necessary.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can complete by the relevant hardware of program command, aforesaid program can be stored in a computer read/write memory medium, this program, when carrying out, is carried out the step that comprises said method embodiment; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CDs.
The structural representation of the network equipment that as shown in Figure 9, the embodiment of the present invention four provides.As shown in Figure 9, the network equipment described in the present embodiment comprises: distribution module 10 and scheduling sending module 11.Wherein, described distribution module 10 is used to the message assignment message numbering in data flow to be sent, and described message numbering is along with the sending order of message increases progressively successively.Described scheduling sending module 11 is used to each message in scheduling queue, to select a communication link, and according to described communication link, described message is carried out to multilink user's datagram protocol MUDP encapsulation, by described communication link, the message after MUDP encapsulation is sent to receiving terminal.
The technical scheme that the present embodiment provides is selected a communication link by each message being respectively in data flow, and according to the communication link of selecting, corresponding message is carried out to MUDP encapsulation, and the message after encapsulation is sent to receiving terminal, avoided only by wall scroll data flow, being undertaken in prior art the drawback of transfer of data, can realize wall scroll data flow transmits via different communication links, article one, the available bandwidth upper limit of data flow is no longer subject to the restriction of single link bandwidth, realized multi-link aggregated, speed and the quality of communication have been improved, also realized the load balancing of each communication link simultaneously.
Wherein, the scheduling sending module described in above-described embodiment, specifically for: in selection scheduling queue, come first communication link, and judge that whether the residual capacity of described communication link is greater than the length of described message, if so, selects described communication link; Otherwise, described communication link is adjusted to the tail of the queue of described scheduling queue, the capacity that described communication link is set equals current residual capacity and adds preset capacity quota, and again selects the communication link that comes first in described scheduling queue, until select communication link; And, at the head of described message, add the first stem, the second stem and the 3rd stem; Wherein, described the first stem comprises source IP address and the object IP address of the physical link between transmitting terminal and receiving terminal; Described the second stem comprises the length of source port sign, destination interface sign, described the 3rd header length and the described message of described communication link; Described the 3rd stem comprises the 3rd header length and for identifying the sign of the type of message of described message.
Further, the network equipment described in above-described embodiment four also comprises: computing module.Wherein, described computing module, for according to default adaptive forward error correction encryption algorithm, calculates redundant message.Correspondingly, described in above-described embodiment, dispatch sending module, also for select a communication link at scheduling queue, and according to described communication link, described redundant message is carried out to MUDP encapsulation, by described communication link, the redundant message after MUDP encapsulation is sent to receiving terminal.
Particularly, described computing module can adopt following structure to realize.Described computing module comprises: monitoring means, the first determining unit, the second determining unit and computing unit.Wherein, described monitoring means, for monitoring the quality of all communication links of described scheduling queue, described quality comprises: the average delay of communication link and average packet loss ratio.Described the first determining unit, for according to the average delay of described all communication links, is determined time and the frequency of carrying out forward error correction coding; Described the second determining unit, for according to the average packet loss ratio of described all communication links, is determined the quantity of calculating redundant message; Described computing unit is according to the time of carrying out forward error correction coding and the frequency determined, and the quantity of redundant message, adopts RS encryption algorithm to calculate the redundant message of described quantity.
Wherein, described monitoring means, comprising: send subelement, receive subelement, obtain subelement, the first computation subunit and the second computation subunit.Wherein, described transmission subelement, for sending PING message by communication link to described receiving terminal, described PING message carries the timestamp that transmitting terminal sends described PING message.Described reception subelement, the PONG message returning for receive described receiving terminal within the default time, and record receives the time of described PONG message.The described subelement that obtains, for obtaining the average round-trip time that this time receives described communication link before the PONG message that described receiving terminal returns.Described the first computation subunit, the timestamp of the described PING message carrying for the PONG message returning according to the described receiving terminal that receives by described communication link, described in receive the time of the PONG message that described receiving terminal returns, the described average round-trip time that this time receives described communication link before the PONG message that described receiving terminal returns, calculate the time delay of described communication link.Described the second computation subunit, for obtaining the calculating parameter of described communication link, and according to described calculating parameter, calculates described communication link average packet loss ratio, wherein, described calculating parameter comprises: the accumulative total while sending described PING message by described communication link sends message amount and message byte number, accumulative total during by the last PONG of reception of described communication link message sends message amount and message byte number, the accumulative total of carrying in the PONG message that the described receiving terminal receiving by the described communication link last time returns receives message amount and message byte number, the accumulative total of carrying in the PONG message that the described receiving terminal this time receiving by described communication link returns receives message amount and message byte number B, and the average transmission success rate that this time receives described communication link before the PONG message that described receiving terminal returns by described communication link.Further, described monitoring means, also comprises: delete subelement.Described deletion subelement for when do not receive the described PONG message that described receiving terminal returns in described the first Preset Time by described communication link, is deleted described communication link from described scheduling queue.
Wherein, described the first computation subunit, specifically for: the timestamp in the described PING message that the PONG message returning according to the described receiving terminal receiving by described communication link carries, described in receive the time of the PONG message that described receiving terminal returns, the described average round-trip time that this time receives described communication link before the PONG message that described receiving terminal returns, adopt following the first computing formula to calculate the time delay of described communication link:
T=[α?RTT last+(1-α)(T PONG-T PING)]/2
Wherein, the time delay that T is described communication link, α is default smoothing factor, RTT is for by this time receiving the average round-trip time of described communication link before the PONG message that described receiving terminal returns, T described in described communication link pONGfor by receiving the time of the PONG message that described receiving terminal returns, T described in described communication link pINGtimestamp in the described PING message carrying for the PONG message returning by receiving terminal described in described communication link.
Described the second computation subunit, specifically for according to described calculating parameter, adopts following the second computing formula to calculate described communication link average packet loss ratio:
R PKTS=α?R PKTS-last+(1-α)(N PONG-N RECV)/(N PING-N LAST)
R BYTES=α?R BYTES-last+(1-α)(B PONG-B RECV)/(B PING-B LAST)
R ‾ = 1 - ( R PKTS + R BYTES ) / 2
Wherein, α is default smoothing factor, describedly this time receives the average transmission success rate of described communication link before the PONG message that described receiving terminal returns and comprises: message on average sends success rate R pKTS-laston average send success rate R with byte number bYTES-last, N pONGaccumulative total in the PONG message returning for the described receiving terminal this time receiving by described communication link receives message amount, B pONGaccumulative total in the PONG message returning for the described receiving terminal this time receiving by described communication link receives message byte number, N rECVaccumulative total in the PONG message returning for the described receiving terminal receiving by the described communication link last time receives message amount, B rECVaccumulative total in the PONG message returning for the described receiving terminal receiving by the described communication link last time receives message byte number, N pINGaccumulative total when sending described PING message by described communication link sends message amount, B pINGaccumulative total when sending described PING message by described communication link sends message byte number, N lASTaccumulative total when by the last PONG of reception of described communication link message sends message amount, B lASTaccumulative total when by the last PONG of reception of described communication link message sends message byte number.
Again further, the network equipment described in above-described embodiment also comprises: set up module.The described module of setting up, for setting up at least two communication links with described receiving terminal, and joins described at least two communication links in described scheduling queue.
The structural representation of the network equipment that as shown in figure 10, the embodiment of the present invention five provides.As shown in figure 10, the network equipment described in the embodiment of the present invention five comprises: receiver module 20 and order module 21.Wherein, the message after a plurality of MUDP encapsulation that described receiver module 20 sends by least two communication links for receiving end/sending end.Described order module 21, for according to described transmitting terminal being the message numbering that described message distributes, sorts to the message after a plurality of MUDP encapsulation that receive.
The technical scheme that the embodiment of the present invention provides is selected a communication link by each message being respectively in data flow, and according to the communication link of selecting, corresponding message is carried out to MUDP encapsulation, and the message after encapsulation is sent to receiving terminal, avoided only by wall scroll data flow, being undertaken in prior art the drawback of transfer of data, can realize wall scroll data flow can transmit via different communication links, article one, the available bandwidth upper limit of data flow is no longer subject to the restriction of single link bandwidth, realized multi-link aggregated, speed and the quality of communication have been improved, also realized the load balancing of each communication link simultaneously.
Wherein, described order module, specifically for according to the message numbering of described message, adopts default message to receive ring principle the message receiving is operated accordingly, so that the message receiving is sorted.Particularly, described message receives ring principle and comprises four parameters, and described four parameters are respectively: the start message numbering of the transmission message of communication link transmitting terminal, primary importance, the second place and message ring size; Correspondingly, described order module, comprising: determining unit and performance element.Wherein, described determining unit, for big or small according to the message numbering of the message receiving, described start message numbering and described message ring, the message receiving described in determining receives the position of ring at described message.Described performance element, for when described position is before described primary importance, described receiving terminal directly abandons this message; When described position is between described primary importance and the described second place, the IP address of the object equipment carrying according to described message, by this message repeating to object equipment; When described position is after the described second place, described message is carried out to buffer memory, and the message of buffer memory is sorted.
Further, described performance element is also for recording the time of described packet buffer; According to the time of described packet buffer, whether the message of monitoring buffer memory expires, the IP address of the object equipment if so, carrying according to described message, by the overdue message repeating of described buffer memory to object equipment, otherwise, continue message described in buffer memory.
The structural representation of the communication system that as shown in figure 11, the embodiment of the present invention six provides.As shown in figure 11, the communication system described in the present embodiment six comprises first network equipment 30 and second network equipment 31.Wherein, described first network equipment 30 is used to the message assignment message numbering in data flow to be sent, and described message numbering is along with the sending order of message increases progressively successively; For each message is selected a communication link in scheduling queue, and according to described communication link, described message is carried out to multilink user's datagram protocol MUDP encapsulation, by described communication link, the message after MUDP encapsulation is sent to receiving terminal.Message after a plurality of MUDP encapsulation that described second network equipment 31 sends by least two communication links for receiving end/sending end; According to described transmitting terminal, be the message numbering that described message distributes, the message after a plurality of MUDP encapsulation that receive is sorted.Particularly, the network equipment that described first network equipment can specifically adopt above-described embodiment four to provide.The network equipment that described second network equipment can specifically adopt above-described embodiment five to provide.
Here it should be noted that: the network equipment as transmitting terminal also can be used as receiving terminal simultaneously, same, the network equipment as receiving terminal also can be used as transmitting terminal simultaneously in the above-described embodiments.Hence one can see that, and in above-mentioned network system, first network equipment both can have been realized the method for the self adaptation multi-link aggregated described in above-described embodiment one or embodiment bis-, also can realize the method for the self adaptation multi-link aggregated described in above-described embodiment three; Same, described second network equipment both can have been realized the method for the self adaptation multi-link aggregated described in above-described embodiment one or embodiment bis-, also can realize the method for the self adaptation multi-link aggregated described in above-described embodiment three.
The technical scheme that the embodiment of the present invention provides is selected a communication link by each message being respectively in data flow, and according to the communication link of selecting, corresponding message is carried out to MUDP encapsulation, and the message after encapsulation is sent to receiving terminal, avoided only by wall scroll data flow, being undertaken in prior art the drawback of transfer of data, can realize wall scroll data flow can transmit via different communication links, article one, the available bandwidth upper limit of data flow is no longer subject to the restriction of single link bandwidth, realized multi-link aggregated, speed and the quality of communication have been improved, also realized the load balancing of each communication link simultaneously
In the above-described embodiments, the description of each embodiment is all emphasized particularly on different fields, in certain embodiment, there is no the part of detailed description, can be referring to the associated description of other embodiment.
Be understandable that the reference mutually of the correlated characteristic in said method and equipment.In addition, " first " in above-described embodiment, " second " etc. are for distinguishing each embodiment, and do not represent the quality of each embodiment.
Those skilled in the art can be well understood to, for convenience and simplicity of description, the system of foregoing description, the specific works process of device and unit, can, with reference to the corresponding process in preceding method embodiment, not repeat them here.
In several embodiment provided by the present invention, should be understood that, disclosed system, apparatus and method, can realize by another way.For example, device embodiment described above is only schematic, for example, the division of described unit, be only that a kind of logic function is divided, during actual realization, can have other dividing mode, for example a plurality of unit or assembly can in conjunction with or can be integrated into another system, or some features can ignore, or do not carry out.Another point, shown or discussed coupling each other or direct-coupling or communication connection can be by some interfaces, indirect coupling or the communication connection of device or unit can be electrically, machinery or other form.
The described unit as separating component explanation can or can not be also physically to separate, and the parts that show as unit can be or can not be also physical locations, can be positioned at a place, or also can be distributed in a plurality of network element.Can select according to the actual needs some or all of unit wherein to realize the object of the present embodiment scheme.
Finally it should be noted that: above embodiment only, in order to technical scheme of the present invention to be described, is not intended to limit; Although the present invention is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: its technical scheme that still can record aforementioned each embodiment is modified, or part technical characterictic is wherein equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.

Claims (21)

1. a method for self adaptation multi-link aggregated, is characterized in that, comprising:
For the message assignment message numbering in data flow to be sent, described message numbering is along with the sending order of message increases progressively successively;
For each message is selected a communication link in scheduling queue, and according to described communication link, described message is carried out to multilink user's datagram protocol MUDP encapsulation, by described communication link, the message after MUDP encapsulation is sent to receiving terminal.
2. method according to claim 1, is characterized in that, describedly for each message, selects a communication link in scheduling queue, is specially:
In selection scheduling queue, come first communication link, and judge that whether the residual capacity of described communication link is greater than the length of described message, if so, selects described communication link; Otherwise, described communication link is adjusted to the tail of the queue of described scheduling queue, the capacity that described communication link is set equals current residual capacity and adds preset capacity quota, and again selects the communication link that comes first in described scheduling queue, until select communication link.
3. method according to claim 1 and 2, is characterized in that, also comprises:
According to default adaptive forward error correction encryption algorithm, calculate redundant message;
In scheduling queue, select a communication link, and according to described communication link, described redundant message is carried out to MUDP encapsulation, by described communication link, the redundant message after MUDP encapsulation is sent to receiving terminal.
4. method according to claim 3, is characterized in that, the adaptive forward error correction encryption algorithm that described basis is default calculates redundant message, comprising:
Monitor the quality of all communication links in described scheduling queue, described quality comprises: the average delay of communication link and average packet loss ratio;
According to the average delay of described all communication links, determine time and the frequency of carrying out forward error correction coding;
According to the average packet loss ratio of described all communication links, determine the quantity of calculating redundant message;
According to the time of carrying out forward error correction coding and the frequency determined, and the quantity of redundant message, adopt RS encryption algorithm to calculate the redundant message of described quantity.
5. method according to claim 4, is characterized in that, the quality of monitoring communication link, comprising:
By described communication link, to described receiving terminal, send PING message, described PING message carries the timestamp that transmitting terminal sends described PING message;
Within the default time, receive the PONG message that described receiving terminal returns, and record receives the time of described PONG message;
Obtain the average round-trip time that this time receives described communication link before the PONG message that described receiving terminal returns;
Timestamp in the described PING message that the PONG message returning according to the described receiving terminal receiving by described communication link carries, described in receive the time of the PONG message that described receiving terminal returns, the described average round-trip time that this time receives described communication link before the PONG message that described receiving terminal returns, calculate the time delay of described communication link;
Obtain the calculating parameter of described communication link, and according to described calculating parameter, calculate described communication link average packet loss ratio, wherein, described calculating parameter comprises: the accumulative total while sending described PING message by described communication link sends message amount and message byte number, accumulative total during by the last PONG of reception of described communication link message sends message amount and message byte number, the accumulative total of carrying in the PONG message that the described receiving terminal receiving by the described communication link last time returns receives message amount and message byte number, the accumulative total of carrying in the PONG message that the described receiving terminal this time receiving by described communication link returns receives message amount and message byte number B, and the average transmission success rate that this time receives described communication link before the PONG message that described receiving terminal returns by described communication link.
6. method according to claim 5, it is characterized in that, timestamp in the described PING message that the PONG message that the described receiving terminal that described basis receives by described communication link returns carries, described in receive the time of the PONG message that described receiving terminal returns, the described average round-trip time that this time receives described communication link before the PONG message that described receiving terminal returns, the time delay of calculating described communication link, is specially:
Timestamp in the described PING message that the PONG message returning according to the described receiving terminal receiving by described communication link carries, described in receive the time of the PONG message that described receiving terminal returns, the described average round-trip time that this time receives described communication link before the PONG message that described receiving terminal returns, adopt following the first computing formula to calculate the time delay of described communication link:
T=[α?RTT last+(1-α)(T PONG-T PING)]/2
Wherein, the time delay that T is described communication link, α is default smoothing factor, RTT is the described average round-trip time that this time receives described communication link before the PONG message that described receiving terminal returns by described communication link, T pONGfor by receiving the time of the PONG message that described receiving terminal returns, T described in described communication link pINGtimestamp in the described PING message carrying for the PONG message returning by receiving terminal described in described communication link.
7. method according to claim 5, is characterized in that, described according to described calculating parameter, calculates described communication link average packet loss ratio, comprising:
According to described calculating parameter, adopt following the second computing formula to calculate described communication link average packet loss ratio:
R PKTS=α?R PKTS-last+(1-α)(N PONG-N RECV)/(N PING-N LAST)
R BYTES=α?R BYTES-last+(1-α)(B PONG-B RECV)/(B PING-B LAST)
R ‾ = 1 - ( R PKTS + R BYTES ) / 2
Wherein, α is default smoothing factor, describedly this time receives the average transmission success rate of described communication link before the PONG message that described receiving terminal returns and comprises: message on average sends success rate R pKTS-laston average send success rate R with byte number bYTES-last, N pONGaccumulative total in the PONG message returning for this described receiving terminal receiving receives message amount, B pONGaccumulative total in the PONG message returning for the described receiving terminal this time receiving by described communication link receives message byte number, N rECVaccumulative total in the PONG message returning for the described receiving terminal receiving by the described communication link last time receives message amount, B rECVaccumulative total in the PONG message returning for the described receiving terminal receiving by the described communication link last time receives message byte number, N pINGaccumulative total when sending described PING message by described communication link sends message amount, B pINGaccumulative total when sending described PING message by described communication link sends message byte number, N lASTaccumulative total when by the last PONG of reception of described communication link message sends message amount, B lASTaccumulative total when by the last PONG of reception of described communication link message sends message byte number.
8. a method for self adaptation multi-link aggregated, is characterized in that, comprising:
Message after a plurality of MUDP encapsulation that receiving end/sending end sends by least two communication links;
According to described transmitting terminal, be the message numbering that described message distributes, the message after a plurality of MUDP encapsulation that receive is sorted.
9. method according to claim 8, is characterized in that, described is the message numbering that described message distributes according to described transmitting terminal, and the message after a plurality of MUDP encapsulation that receive is sorted, and is specially:
According to the message numbering of described message, adopt default message to receive ring principle the message receiving is operated accordingly, so that the message receiving is sorted.
10. method according to claim 9, it is characterized in that, described message receives ring principle and comprises four parameters, and described four parameters are respectively: the start message numbering of the transmission message of communication link transmitting terminal, primary importance, the second place and message ring size;
Correspondingly, described according to the message numbering of described message, adopt default message to receive ring principle the message receiving is operated accordingly, so that the message receiving is sorted, comprising:
According to the message numbering of the message receiving, described start message numbering and described message ring size, the message receiving described in determining receives the position of ring at described message;
If described position is before described primary importance, described receiving terminal directly abandons this message;
If described position between described primary importance and the described second place, the IP address of the object equipment carrying according to described message, by this message repeating to object equipment;
If buffer memory, after the described second place, is carried out by described message in described position, and the message of buffer memory is sorted.
11. methods according to claim 10, is characterized in that, described described message is carried out to buffer memory after, also comprise:
Record the time of described packet buffer;
According to the time of described packet buffer, whether the message of monitoring buffer memory expires, the IP address of the object equipment if so, carrying according to described message, by the overdue message repeating of buffer memory to object equipment, otherwise, continue message described in buffer memory.
12. 1 kinds of network equipments, is characterized in that, comprising:
Distribution module, is used to the message assignment message numbering in data flow to be sent, and described message numbering is along with the sending order of message increases progressively successively;
Scheduling sending module, be used to each message in scheduling queue, to select a communication link, and according to described communication link, described message is carried out to multilink user's datagram protocol MUDP encapsulation, by described communication link, the message after MUDP encapsulation is sent to receiving terminal.
13. network equipments according to claim 12, is characterized in that, described scheduling sending module, specifically for: the communication link that comes first in selection scheduling queue, and judge that whether the residual capacity of described communication link is greater than the length of described message, if so, selects described communication link; Otherwise, described communication link is adjusted to the tail of the queue of described scheduling queue, the capacity that described communication link is set equals current residual capacity and adds preset capacity quota, and again selects the communication link that comes first in described scheduling queue, until select communication link.
14. according to the network equipment described in claim 12 or 13, it is characterized in that, also comprises:
Computing module, for according to default adaptive forward error correction encryption algorithm, calculates redundant message;
Described scheduling sending module, also for select a communication link at scheduling queue, and carries out MUDP encapsulation according to described communication link to described redundant message, by described communication link, the redundant message after MUDP encapsulation is sent to receiving terminal.
15. network equipments according to claim 14, is characterized in that, described computing module, comprising:
Monitoring means, for monitoring the quality of all communication links of described scheduling queue, described quality comprises: the average delay of communication link and average packet loss ratio;
The first determining unit, for according to the average delay of described all communication links, determines time and the frequency of carrying out forward error correction coding;
The second determining unit, for according to the average packet loss ratio of described all communication links, determines the quantity of calculating redundant message;
Computing unit, according to the time of carrying out forward error correction coding and the frequency determined, and the quantity of redundant message, adopt RS encryption algorithm to calculate the redundant message of described quantity.
16. network equipments according to claim 15, is characterized in that, described monitoring means, comprising:
Send subelement, for sending PING message by communication link to described receiving terminal, described PING message carries the timestamp that transmitting terminal sends described PING message;
Receive subelement, the PONG message returning for receive described receiving terminal within the default time, and record receives the time of described PONG message;
Obtain subelement, for obtaining the average round-trip time that this time receives described communication link before the PONG message that described receiving terminal returns;
The first computation subunit, the timestamp of the described PING message carrying for the PONG message returning according to the described receiving terminal that receives by described communication link, described in receive the time of the PONG message that described receiving terminal returns, the described average round-trip time that this time receives described communication link before the PONG message that described receiving terminal returns, calculate the time delay of described communication link;
The second computation subunit, for obtaining the calculating parameter of described communication link, and according to described calculating parameter, calculates described communication link average packet loss ratio, wherein, described calculating parameter comprises: the accumulative total while sending described PING message by described communication link sends message amount and message byte number, accumulative total during by the last PONG of reception of described communication link message sends message amount and message byte number, the accumulative total of carrying in the PONG message that the described receiving terminal receiving by the described communication link last time returns receives message amount and message byte number, the accumulative total of carrying in the PONG message that the described receiving terminal this time receiving by described communication link returns receives message amount and message byte number B, and the average transmission success rate that this time receives described communication link before the PONG message that described receiving terminal returns by described communication link.
17. 1 kinds of network equipments, is characterized in that, comprising:
Receiver module, the message after a plurality of MUDP encapsulation that send by least two communication links for receiving end/sending end;
Order module, for according to described transmitting terminal being the message numbering that described message distributes, sorts to the message after a plurality of MUDP encapsulation that receive.
18. network equipments according to claim 17, it is characterized in that, described order module, specifically for according to the message numbering of described message, adopt default message to receive ring principle the message receiving is operated accordingly, so that the message receiving is sorted.
19. network equipments according to claim 18, it is characterized in that, described message receives ring principle and comprises four parameters, and described four parameters are respectively: the start message numbering of the transmission message of communication link transmitting terminal, primary importance, the second place and message ring size; Correspondingly, described order module, comprising:
Determining unit, for big or small according to the message numbering of the message receiving, described start message numbering and described message ring, the message receiving described in determining receives the position of ring at described message;
Performance element, for when described position is before described primary importance, described receiving terminal directly abandons this message; When described position is between described primary importance and the described second place, the IP address of the object equipment carrying according to described message, by this message repeating to object equipment; When described position is after the described second place, described message is carried out to buffer memory, and the message of buffer memory is sorted.
20. network equipments according to claim 19, is characterized in that, described performance element, also for recording the time of described packet buffer; According to the time of described packet buffer, whether the message of monitoring buffer memory expires, the IP address of the object equipment if so, carrying according to described message, by the overdue message repeating of described buffer memory to object equipment, otherwise, continue message described in buffer memory.
21. 1 kinds of communication systems, it is characterized in that, comprise: first network equipment and second network equipment, wherein, described first network equipment adopts arbitrary described network equipment in the claims 12～16, and described second network equipment adopts arbitrary described network equipment in the claims 17～20.
CN201310581432.1A 2013-11-18 2013-11-18 Method, device and system for self-adaptation multiple-link aggregation Pending CN103618678A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310581432.1A CN103618678A (en) 2013-11-18 2013-11-18 Method, device and system for self-adaptation multiple-link aggregation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310581432.1A CN103618678A (en) 2013-11-18 2013-11-18 Method, device and system for self-adaptation multiple-link aggregation

Publications (1)

Publication Number Publication Date
CN103618678A true CN103618678A (en) 2014-03-05

Family

ID=50169382

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201310581432.1A Pending CN103618678A (en) 2013-11-18 2013-11-18 Method, device and system for self-adaptation multiple-link aggregation

Country Status (1)

Country Link
CN (1) CN103618678A (en)

Cited By (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104539531A (en) * 2014-12-25 2015-04-22 网宿科技股份有限公司 Data transmission method and device
WO2016170399A1 (en) * 2015-04-24 2016-10-27 Pismo Labs Technology Ltd. Methods and systems for estimating missing data
US9531508B2 (en) 2009-12-23 2016-12-27 Pismo Labs Technology Limited Methods and systems for estimating missing data
CN106412998A (en) * 2016-11-16 2017-02-15 清华大学 Load distribution method and system of intelligent communication terminal platform
CN107302504A (en) * 2017-07-07 2017-10-27 北京邮电大学 A kind of multiplexing dispatching method and system based on virtual transmit queue
CN107819681A (en) * 2016-09-12 2018-03-20 中兴通讯股份有限公司 Pseudo-wire load sharing retransmission method and edge router
CN108370377A (en) * 2015-12-11 2018-08-03 微软技术许可有限责任公司 Virtual Private Network polymerize
CN108650061A (en) * 2018-04-24 2018-10-12 达闼科技（北京）有限公司 VPN Proxy Methods, device, storage medium and system based on FEC
CN108924048A (en) * 2018-06-26 2018-11-30 新华三技术有限公司 A kind of routing file transmitting method, device and routing device
CN109246021A (en) * 2018-09-18 2019-01-18 武汉海晟科讯科技有限公司 A kind of Point-to-Point Data reliable transmission system and method based on FPGA
CN109257442A (en) * 2018-11-09 2019-01-22 南方电网科学研究院有限责任公司 File transmission method, system, terminal and storage medium based on TFTP
CN109286914A (en) * 2018-10-25 2019-01-29 中国铁道科学研究院集团有限公司通信信号研究所 Integrate mobile data transfer system to multimode vehicle
CN109428801A (en) * 2017-08-23 2019-03-05 北京华为数字技术有限公司 File transmitting method and device
CN109672629A (en) * 2018-12-04 2019-04-23 迈普通信技术股份有限公司 A kind of file transmitting method and communication equipment
CN109890087A (en) * 2018-12-29 2019-06-14 华为终端有限公司 A kind of method and apparatus handling data packet
CN110943935A (en) * 2018-09-25 2020-03-31 华为技术有限公司 Method, device and system for realizing data transmission
CN110995608A (en) * 2019-12-20 2020-04-10 锐捷网络股份有限公司 Method, device and system for multi-link load balancing
WO2020078448A1 (en) * 2018-10-19 2020-04-23 华为技术有限公司 Message processing method and apparatus
CN112152872A (en) * 2020-08-31 2020-12-29 新华三大数据技术有限公司 Network sub-health detection method and device
CN112436994A (en) * 2020-11-17 2021-03-02 联想(北京)有限公司 Data transmission method and electronic equipment
CN112600712A (en) * 2020-12-24 2021-04-02 新华三大数据技术有限公司 Service quality scheduling method and device
CN112637051A (en) * 2020-11-26 2021-04-09 新华三技术有限公司合肥分公司 Path detection message forwarding method and device
CN112637055A (en) * 2020-12-02 2021-04-09 广东中兴新支点技术有限公司 Multi-link aggregation method, system and storage medium based on VPN tunnel
CN112996031A (en) * 2019-12-12 2021-06-18 烽火通信科技股份有限公司 PPP link selection method and system
US11070466B2 (en) 2018-08-23 2021-07-20 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Method for link aggregation and related devices
CN113301000A (en) * 2020-02-24 2021-08-24 贵州白山云科技股份有限公司 Data transmission method, device, medium and equipment
CN113316192A (en) * 2021-05-18 2021-08-27 西安电子科技大学 Multi-link scheduling strategy based on link setting
CN113489644A (en) * 2021-06-25 2021-10-08 南京诺源医疗器械有限公司 Data information transmission method for medical optical imaging system
CN113630338A (en) * 2021-07-29 2021-11-09 济南浪潮数据技术有限公司 Method, system, equipment and medium for processing SMB request
US11201699B2 (en) 2009-12-23 2021-12-14 Pismo Labs Technology Limited Methods and systems for transmitting error correction packets
CN114363242A (en) * 2021-06-07 2022-04-15 中宇联云计算服务(上海)有限公司 Dynamic multi-path optimization method, system and equipment based on cloud network fusion technology
CN114944981A (en) * 2022-05-20 2022-08-26 国网江苏省电力有限公司 Network high-availability communication method and device, storage medium and electronic equipment
WO2022199558A1 (en) * 2021-03-22 2022-09-29 华为技术有限公司 Data transmission method, and related apparatus and device
CN115412483A (en) * 2022-08-30 2022-11-29 武汉烽火技术服务有限公司 Method and system for aggregating keep-alive messages and interacting across equipment links
CN116032998A (en) * 2021-10-26 2023-04-28 广州视源电子科技股份有限公司 Data transmission method, data transmission device, computer readable storage medium and electronic equipment

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101110763A (en) * 2007-06-22 2008-01-23 中兴通讯股份有限公司 Method for fast weighing and selecting port
CN101286945A (en) * 2008-05-22 2008-10-15 北京星网锐捷网络技术有限公司 Method and apparatus for processing of data fragmentation
US20090022065A1 (en) * 2006-04-27 2009-01-22 Huawei Technologies Co., Ltd. Method And System For Transmitting IP Message, Negotiating Bandwidth Saving Capability And Saving Network Bandwidth
WO2009043304A1 (en) * 2007-09-30 2009-04-09 Huawei Technologies Co., Ltd. Method, system, and device for verifying the relation of dada link layer address and its transmitting party
CN101459615A (en) * 2008-12-25 2009-06-17 华为技术有限公司 Method, terminal port and system for packet transmission

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090022065A1 (en) * 2006-04-27 2009-01-22 Huawei Technologies Co., Ltd. Method And System For Transmitting IP Message, Negotiating Bandwidth Saving Capability And Saving Network Bandwidth
CN101110763A (en) * 2007-06-22 2008-01-23 中兴通讯股份有限公司 Method for fast weighing and selecting port
WO2009043304A1 (en) * 2007-09-30 2009-04-09 Huawei Technologies Co., Ltd. Method, system, and device for verifying the relation of dada link layer address and its transmitting party
CN101286945A (en) * 2008-05-22 2008-10-15 北京星网锐捷网络技术有限公司 Method and apparatus for processing of data fragmentation
CN101459615A (en) * 2008-12-25 2009-06-17 华为技术有限公司 Method, terminal port and system for packet transmission

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
唐红、赵国锋、张毅: "《IP网络测量》", 31 October 2009, 科学出版社 *
谢希仁: "《计算机网络》", 30 June 2003, 电子工业出版社 *
陈一鸣: "《流媒体业务中间件之前向纠错策略研究与实现》", 《中国优秀硕士学位论文全文库》 *

Cited By (58)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11201699B2 (en) 2009-12-23 2021-12-14 Pismo Labs Technology Limited Methods and systems for transmitting error correction packets
US11943060B2 (en) 2009-12-23 2024-03-26 Pismo Labs Technology Limited Methods and systems for transmitting packets
US9531508B2 (en) 2009-12-23 2016-12-27 Pismo Labs Technology Limited Methods and systems for estimating missing data
US11677510B2 (en) 2009-12-23 2023-06-13 Pismo Labs Technology Limited Methods and systems for transmitting error correction packets
US10257024B2 (en) 2014-12-25 2019-04-09 Wangsu Science & Technology Co., Ltd. Data transmission method, apparatus, and terminal
CN104539531B (en) * 2014-12-25 2019-08-02 网宿科技股份有限公司 Data transmission method and device
EP3217609A4 (en) * 2014-12-25 2018-06-13 Wangsu Science & Technology Co., Ltd. Data transmission method and device, terminal and storage medium
CN104539531A (en) * 2014-12-25 2015-04-22 网宿科技股份有限公司 Data transmission method and device
GB2542219A (en) * 2015-04-24 2017-03-15 Pismo Labs Technology Ltd Methods and systems for estimating missing data
WO2016170399A1 (en) * 2015-04-24 2016-10-27 Pismo Labs Technology Ltd. Methods and systems for estimating missing data
GB2542219B (en) * 2015-04-24 2021-07-21 Pismo Labs Technology Ltd Methods and systems for estimating missing data
CN108370377A (en) * 2015-12-11 2018-08-03 微软技术许可有限责任公司 Virtual Private Network polymerize
CN108370377B (en) * 2015-12-11 2020-10-02 微软技术许可有限责任公司 Method implemented at computer system, computing system and storage medium
CN107819681A (en) * 2016-09-12 2018-03-20 中兴通讯股份有限公司 Pseudo-wire load sharing retransmission method and edge router
CN106412998A (en) * 2016-11-16 2017-02-15 清华大学 Load distribution method and system of intelligent communication terminal platform
CN106412998B (en) * 2016-11-16 2019-07-12 清华大学 A kind of the load concocting method and system of intelligent communications terminal platform
CN107302504B (en) * 2017-07-07 2020-01-14 北京邮电大学 Multipath transmission scheduling method and system based on virtual sending queue
CN107302504A (en) * 2017-07-07 2017-10-27 北京邮电大学 A kind of multiplexing dispatching method and system based on virtual transmit queue
CN109428801A (en) * 2017-08-23 2019-03-05 北京华为数字技术有限公司 File transmitting method and device
CN108650061A (en) * 2018-04-24 2018-10-12 达闼科技（北京）有限公司 VPN Proxy Methods, device, storage medium and system based on FEC
CN108924048A (en) * 2018-06-26 2018-11-30 新华三技术有限公司 A kind of routing file transmitting method, device and routing device
US11070466B2 (en) 2018-08-23 2021-07-20 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Method for link aggregation and related devices
CN109246021B (en) * 2018-09-18 2022-03-11 武汉海晟科讯科技有限公司 FPGA-based point-to-point data reliable transmission system and method
CN109246021A (en) * 2018-09-18 2019-01-18 武汉海晟科讯科技有限公司 A kind of Point-to-Point Data reliable transmission system and method based on FPGA
CN110943935A (en) * 2018-09-25 2020-03-31 华为技术有限公司 Method, device and system for realizing data transmission
CN110943935B (en) * 2018-09-25 2023-05-19 华为技术有限公司 Method, device and system for realizing data transmission
WO2020078448A1 (en) * 2018-10-19 2020-04-23 华为技术有限公司 Message processing method and apparatus
US11888960B2 (en) 2018-10-19 2024-01-30 Huawei Technologies Co., Ltd. Packet processing method and apparatus
CN109286914A (en) * 2018-10-25 2019-01-29 中国铁道科学研究院集团有限公司通信信号研究所 Integrate mobile data transfer system to multimode vehicle
CN109257442A (en) * 2018-11-09 2019-01-22 南方电网科学研究院有限责任公司 File transmission method, system, terminal and storage medium based on TFTP
CN109672629A (en) * 2018-12-04 2019-04-23 迈普通信技术股份有限公司 A kind of file transmitting method and communication equipment
CN109890087B (en) * 2018-12-29 2022-08-09 华为终端有限公司 Method and device for processing data packet
CN109890087A (en) * 2018-12-29 2019-06-14 华为终端有限公司 A kind of method and apparatus handling data packet
CN112996031A (en) * 2019-12-12 2021-06-18 烽火通信科技股份有限公司 PPP link selection method and system
CN110995608A (en) * 2019-12-20 2020-04-10 锐捷网络股份有限公司 Method, device and system for multi-link load balancing
CN113301000A (en) * 2020-02-24 2021-08-24 贵州白山云科技股份有限公司 Data transmission method, device, medium and equipment
CN113301000B (en) * 2020-02-24 2023-04-18 贵州白山云科技股份有限公司 Data transmission method, device, medium and equipment
CN112152872A (en) * 2020-08-31 2020-12-29 新华三大数据技术有限公司 Network sub-health detection method and device
CN112152872B (en) * 2020-08-31 2022-05-27 新华三大数据技术有限公司 Network sub-health detection method and device
CN112436994A (en) * 2020-11-17 2021-03-02 联想(北京)有限公司 Data transmission method and electronic equipment
CN112436994B (en) * 2020-11-17 2022-04-19 联想(北京)有限公司 Data transmission method and electronic equipment
CN112637051B (en) * 2020-11-26 2022-07-12 新华三技术有限公司合肥分公司 Path detection message forwarding method and device
CN112637051A (en) * 2020-11-26 2021-04-09 新华三技术有限公司合肥分公司 Path detection message forwarding method and device
CN112637055B (en) * 2020-12-02 2023-02-07 广东中兴新支点技术有限公司 Multi-link aggregation method, system and storage medium based on VPN tunnel
CN112637055A (en) * 2020-12-02 2021-04-09 广东中兴新支点技术有限公司 Multi-link aggregation method, system and storage medium based on VPN tunnel
CN112600712A (en) * 2020-12-24 2021-04-02 新华三大数据技术有限公司 Service quality scheduling method and device
CN112600712B (en) * 2020-12-24 2022-05-27 新华三大数据技术有限公司 Service quality scheduling method and device
WO2022199558A1 (en) * 2021-03-22 2022-09-29 华为技术有限公司 Data transmission method, and related apparatus and device
CN113316192B (en) * 2021-05-18 2022-12-02 西安电子科技大学 Multi-link scheduling strategy based on link setting
CN113316192A (en) * 2021-05-18 2021-08-27 西安电子科技大学 Multi-link scheduling strategy based on link setting
CN114363242A (en) * 2021-06-07 2022-04-15 中宇联云计算服务(上海)有限公司 Dynamic multi-path optimization method, system and equipment based on cloud network fusion technology
CN113489644A (en) * 2021-06-25 2021-10-08 南京诺源医疗器械有限公司 Data information transmission method for medical optical imaging system
CN113630338A (en) * 2021-07-29 2021-11-09 济南浪潮数据技术有限公司 Method, system, equipment and medium for processing SMB request
CN116032998A (en) * 2021-10-26 2023-04-28 广州视源电子科技股份有限公司 Data transmission method, data transmission device, computer readable storage medium and electronic equipment
CN114944981A (en) * 2022-05-20 2022-08-26 国网江苏省电力有限公司 Network high-availability communication method and device, storage medium and electronic equipment
CN114944981B (en) * 2022-05-20 2023-08-04 国网江苏省电力有限公司 Communication method, device, storage medium and electronic equipment with high availability of network
CN115412483A (en) * 2022-08-30 2022-11-29 武汉烽火技术服务有限公司 Method and system for aggregating keep-alive messages and interacting across equipment links
CN115412483B (en) * 2022-08-30 2023-06-09 武汉烽火技术服务有限公司 Method and system for cross-device link aggregation keep-alive message interaction

Similar Documents

Publication Publication Date Title
CN103618678A (en) Method, device and system for self-adaptation multiple-link aggregation
CN102263697B (en) Method and device for sharing aggregated link traffic
CN107347021B (en) SDN-based reliable transmission method
CN107360092B (en) System and method for balancing load in data network
CN104205942B (en) Multi-hop Fault recovery
US6947379B1 (en) Packet routing to reduce susceptibility to disturbances
CN103490972B (en) Multilink tunnel message transmission method and system
US20030108063A1 (en) System and method for aggregating multiple information channels across a network
US20050188073A1 (en) Transmission system, delivery path controller, load information collecting device, and delivery path controlling method
US20080159150A1 (en) Method and Apparatus for Preventing IP Datagram Fragmentation and Reassembly
CN104272708A (en) Two level packet distribution with stateless first level packet distribution to a group of servers and stateful second level packet distribution to a server within the group
CN102739518B (en) A kind of flow load sharing method and apparatus
JP2007527170A (en) System and method for parallel communication
CN108881008A (en) A kind of methods, devices and systems of data transmission
CN104168212B (en) The method and apparatus for sending message
CN103259809A (en) Load balancer, load balancing method and stratified data center system
CN112422421B (en) Multi-path data packet transmission method of heterogeneous network
CN100531215C (en) Method for realizing multiple network device link aggregation
CN101179510B (en) Main/slave link load sharing method and apparatus for virtual switch system
CN101233726B (en) Local area network management method
Taruk et al. Comparison of TCP variants in long term evolution (LTE)
CN105763375B (en) A kind of data packet sending method, method of reseptance and microwave station
CN113438182B (en) Credit-based flow control system and flow control method
CN113612698A (en) Data packet sending method and device
CN101547192A (en) Method and device for allocating and transmitting TCP data pockets

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20140305

RJ01 Rejection of invention patent application after publication