CN108306827A - The method and server of transmission data - Google Patents
The method and server of transmission data Download PDFInfo
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- CN108306827A CN108306827A CN201710020521.7A CN201710020521A CN108306827A CN 108306827 A CN108306827 A CN 108306827A CN 201710020521 A CN201710020521 A CN 201710020521A CN 108306827 A CN108306827 A CN 108306827A
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- Prior art keywords
- subflow
- path
- transmission
- server
- congestion
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/10—Flow control; Congestion control
- H04L47/12—Avoiding congestion; Recovering from congestion
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/10—Flow control; Congestion control
- H04L47/36—Flow control; Congestion control by determining packet size, e.g. maximum transfer unit [MTU]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/16—Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
Abstract
This application provides a kind of method of transmission data and server, this method includes：First server detects first status transmission, wherein it is first-class that the first server by first path transmits this to second server；When according to the first status transmission, determining that the first path congestion and the first flow velocity are more than the first flow rate threshold, this first-class is split as N subflow；The first subflow in the N subflow is transmitted by the first path, passes through the i-th subflow in the i-th path transmission N subflow, wherein i is any one in 2 to N.The method of transmission data provided by the present application only just implements multithread parallel transmission when there is more subflow transmission demands, can effectively reduce the subflow quantity in system, avoids small stream from being cut, mechanism is more flexible, and user experience is more preferable.
Description
Technical field
This application involves the communications fields, and more particularly, to a kind of transmission data in data center network field
Method and server.
Background technology
Internet data is increased in a manner of volatile, according to International Data Corporation's (English：International
Data Corporation be referred to as " IDC ") publication digital cosmic exploration report 2011 (Digital Universe Study
2011), global information total amount often spends 2 years and will double, and the appearance of big data is just forcing enterprise constantly to promote itself with number
According to the data-handling capacity that center is platform.Based on Crouse's (English：Clos a kind of) the network architecture (multistage switching network frame
Structure) data center network autgmentability it is good, equative route is more.But in traditional load balancing (English：load
Balancing, referred to as " LB ") serious congestion is but susceptible under mechanism, in order to optimize the load balancing of data center, industry
Transmission control protocol/iso-ip Internetworking protocol ISO-IP (Transmission Control Protocol/Internet of the boundary in standard
Protocol, referred to as " TCP/IP ") it is studied in mechanism, it is proposed that Transmission Control Protocol is extended by multipath operation
Scheme, the program are referred to as multi-path transmission control protocol (English：Multipath TCP, referred to as " MPTCP ").MPTCP is logical
It crosses and is revised as standard TCP by the multiple of one stream of a plurality of TCP connection simultaneous transmission by TCP connection one stream of transmission
Subflow optimizes the equal cost multipath of data center, and does not change the legacy network devices of data center.
MPTCP fixedly carries out subflow fractured operation to all streams, and it is more not consider whether processed stream needs to carry out
Path transmission.However, also there are many stream that application is initiated, such as a web page browsing, bandwidth are simultaneously little in network.These streams make
It is transmitted with a TCP connection fully sufficient.But MPTCP is still to execute more subflows to transmit to such stream.It is this
When the expense brought of processing that is split and merged by subflow instead more than benefit that it brings.In addition, the subflow number of MPTCP is
It just has determined before connection establishment.IP address is also available to determining subflow whether based on the Configuration Values of kernel
It counts, the subflow number that can be established in transmission process is before initiating transmission it has been determined that using can not be according to actual conditions dynamically
Increase or reduce subflow.
As it can be seen that MPTCP establishes the mechanism underaction of subflow.
Invention content
The application provides a kind of method and server of transmission data, can adjust the stream according to the status transmission dynamic of stream
Subflow quantity, mechanism is more flexible, improve user experience.
In a first aspect, providing a kind of method of transmission data.First server detects first status transmission,
In, first server transmits first-class, the first server and the second server by first path to second server
Between there are X paths, X is more than or equal to 2；When according to the first status transmission, determining the first path congestion simultaneously
And this first-class is split as N subflow, wherein N is less than or equal to when being more than the first flow rate threshold by the first flow velocity
X；The first server transmits the first subflow in the N subflow by the first path, passes through the i-th path transmission N strips
The i-th subflow in stream, wherein i is any one in 2 to N.
First aspect provide transmission data method, only when there is more subflow transmission demands just by it is first-class be split as it is more
Subflow carries out parallel transmission, can effectively reduce the subflow quantity in system, avoids small stream from being cut, mechanism is more flexible, user's body
It tests more preferable.
In a kind of possible realization method of first aspect, this method further includes：The first server detects the N strips
The status transmission of every subflow in stream；The flow velocity of the jth path congestion and the jth subflow that determine transmission jth subflow is more than the
When two flow rate thresholds, determine that the jth subflow needs to split again, wherein j is any one in 1 to N；It is preset most when N is less than
When big subflow number, which is split out into N+T subflows again, wherein T is any one in 1 to M, N+M be less than or
Equal to the default maximum subflow number；The first server passes through the N+T path transmissions N+T subflows.In the realization method
Transmission data method, the number of subflow can be adjusted according to the transmission situation dynamic of subflow, when subflow congestion, and should
When the flow velocity of subflow is more than the flow velocity threshold limit of the subflow and when the item number of current substream is less than default maximum subflow number,
The operation for splitting the subflow can be continued to execute.User experience can be improved, the rate of transmitting data stream or Business Stream is improved,
Mechanism is more flexible.
In a kind of possible realization method of first aspect, this method further includes：First server detection is per strip
The status transmission of stream；When the path of at least two subflows of determining transmission, the flow velocity of congestion and/or at least two subflows is not both less than
Or when equal to the second flow speed threshold value, by this, at least two articles of subflows merge into a subflows；The first server passes through the roads a
Diameter transmits a subflows, wherein the paths a are any one paths in the path for transmit at least two articles subflows.The reality
The method of transmission data in existing mode, can be according to the status transmission of subflow, when subflow is not in congestion, and the subflow
Flow velocity be less than the second flow speed threshold limit when, can execute merge subflow operation, be effectively reduced resource waste and
The expense of signaling, can improve user experience, and mechanism is more flexible.
In a kind of possible realization method of first aspect, this method further includes：The first server is first-class by this
First flow rate threshold be determined as the second flow speed threshold value of first subflow.The side of transmission data in the realization method
First flow rate threshold of the first flow velocity is set as in subflow identical as the first path by method, the first server
The first subflow flow velocity second flow speed threshold value, can thus be gone to judge according to first flow rate threshold subflow whether needs
Continue to split, mechanism is more flexible, more convenient.
In a kind of possible realization method of first aspect, the first server according to the first status transmission,
When determining the first path congestion and/or the first flow velocity not being less than or equal to first flow rate threshold, by this
First path is transmitted described first-class to the second server.
In a kind of possible realization method of first aspect, which detects the first-class status transmission, can
To include：It counts the first average RTT value and/or enables ecn (explicit congestion notification) mechanism to determine whether to receive
Transmit the first path congestion notice；Wherein, when the first average RTT value is more than preset round-trip delay
When threshold value and/or when receiving the transmission first path congestion notice, determines and transmit the first path congestion；When
And/or it should when being not received by transmission when the average RTT value of the preceding stream is less than or equal to preset round-trip delay threshold value
When the congestion notification in first path, determines and transmit the first path not congestion.
Second aspect provides a kind of server, for executing the transmission in above-mentioned first aspect and various realization methods
The method of data.The server is first server, which includes processing unit and transmission unit, wherein the processing list
Member is used for：Detect first status transmission, wherein first server by first path to second server transmit this first
Stream, there are X paths, X to be more than or equal between the first server and the second server；When according to the first biography
Defeated situation, when determining that the first path congestion and the first flow velocity are more than the first flow rate threshold, by the first-class fractionation
For N subflow, wherein N is less than or equal to X；The transmission unit is used for：It is transmitted in the N subflow by the first path
First subflow passes through the i-th subflow in the i-th path transmission N subflow, wherein i is any one in 2 to N.
The third aspect provides a kind of server, including processor and memory, for supporting that it is above-mentioned that the server executes
Corresponding function in method.The memory stores program, the processor for call described program realize above-mentioned first aspect and
The method of transmission data in its various realization method.
Fourth aspect provides a kind of computer-readable medium, and for storing computer program, which includes
The instruction of the method in any possible realization method for executing above-mentioned first aspect or first aspect.
Description of the drawings
Fig. 1 is the structural schematic diagram of the ICP/IP protocol stack of standard.
Fig. 2 is the structural schematic diagram of MPTCP/IP protocol stacks.
Fig. 3 is the typical application scenarios schematic diagram of data center network.
Fig. 4 is the schematic flow chart of the method for the transmission data of one embodiment of the invention.
Fig. 5 is the schematic diagram of the ICP/IP protocol stack before and after the modification of one embodiment of the invention.
Fig. 6 is the method schematic diagram of the transmission data of one embodiment of the invention.
Fig. 7 is the schematic diagram of the method for the transmission data of another embodiment of the present invention.
Fig. 8 is the schematic diagram of the method for the transmission data of another embodiment of the invention.
Fig. 9 is the schematic block diagram of the server of one embodiment of the invention.
Figure 10 is the schematic block diagram of the server of another embodiment of the present invention.
Specific implementation mode
Below in conjunction with attached drawing, technical solution in the embodiment of the present invention is described.
Fig. 1 is the structural schematic diagram of the ICP/IP protocol stack of standard, as shown in Figure 1, in the ICP/IP protocol stack of standard,
One TCP/IP connection can only establish a stream from source to purpose.Therefore, the data or resource that an application needs can only
It is transmitted on this stream.
Fig. 2 is the structural schematic diagram of MPTCP protocol stacks, and as shown in Figure 2, a MPTCP is connected to father's stream in MPTCP,
It may include a plurality of subflow under it.Therefore, one application need data or resource can in this plurality of subflow simultaneous transmission.
Fig. 2 merely illustrates a case where MPTCP connection includes two subflows, it should be appreciated that a MPTCP connection can also include more
Subflow.
In the embodiment of the present invention, stream (English：Flow) also referred to as stream is (English：Traffic flow), stream (English：
Stream), message flow (English：Packet flow), network flow (English：Network flow) or data flow (English：data
Flow) etc..Stream is from source (English：Source) equipment is (English to destination：Destination the sequence of message), i.e. source
The sequence of address and the identical message of destination address.Destination can be any host, multicast group or broadcast domain.
Fig. 3 is the typical application scenarios schematic diagram of data center network.The data center network can be multistage
Clos structures (show 2 grades) in figure, every grade may include multiple switch (2 are shown in figure), each bottom interchanger
At least one server (one is shown in figure) can be connected.In Fig. 3, interchanger 0,3 is the bottom in 2 grades of Clos networks
Equipment, that is, Leaf, interchanger 1,2 are the equipment of top layer in 2 grades of Clos networks, that is, Spine, the connection clothes of interchanger 0
Be engaged in device A, 3 Connection Service device B of interchanger.There are a plurality of transmission paths (two are shown in figure between server A and server B
Item).When needing transmitting data stream or Business Stream between server A and server B, for MPTCP mechanism, with application
Layer protocol is File Transfer Protocol (English：File transfer protocol, referred to as " FTP ") for, server A kimonos
Device B be engaged in respectively as the server end and client of FTP, download request of the server B to server A one compressed file of initiation
Afterwards, two son connections can be established between server B and server A under a MPTCP connection, (i.e. by two son connections
Two transmission paths) transmitting data in parallel stream subflow, as the solid line in Fig. 3 (hand over by server A-0-interchanger of interchanger 1-
Change planes 3-server Bs) and indicate two of dotted line (server A-3-server B of interchanger 0-interchanger, 2-interchanger)
Subflow.Server A can split the file data that server B is asked in this two subflows respectively in certain sequence, pass through
Two equative routes of Clos networks are sent to destination server B, are finally completed to split number by the operating system in server B
According to recombination and reception.Application program can pass through multiple subflow transmission datas simultaneously under this transmission mechanisms of MPTCP.In net
Network equipment, such as interchanger 0 is apparently, each in this plurality of subflow are all different stream, therefore the network equipment still can be with
Pass through equal cost multipath (English：Equal-cost multi-path, referred to as " ECMP ") Hash (hash) mechanism by two
In substream allocation to different paths, to realize making full use of for multiple equative routes.
Traditional MPTCP is to need to determine the subflow number that can be established first before being transmitted, and carry out all streams
It splits, and can not dynamically increase or reduce subflow according to actual conditions, therefore this mechanism underaction, it is also possible to band
Carry out small stream and is split the expense increase brought and out of order problem.
Based on existing MPTCP when splitting subflow there are the problem of, an embodiment of the present invention provides a kind of transmission numbers
According to method, Fig. 4 shows the schematic flow chart of the method 100 of transmission data according to the ... of the embodiment of the present invention, this method 100
It can be executed by first server, for example, the first server can be server A or server B in Fig. 3, also may be used
Think file server, database server or apps server etc..Specifically, the method can be by first service
Central processing unit (the English of device：Central processing unit, referred to as " CPU ") it executes.
It should be understood that the method for the transmission data of the offer of the embodiment of the present invention can pass through the procotol to operating system
The modification of stack layer realizes that operating system for example can be the network processes portion of Windows/Linux operating system nucleus codes
Grade.Fig. 5 is the schematic diagram of the ICP/IP protocol stack before and after the modification of one embodiment of the invention.As shown in Figure 5, can pass through
The method for changing transport layer and network layer in network protocol stack layers to realize the transmission data of the embodiment of the present invention, for example, can
Socket (socket), the application programming interfaces of transport layer to be the ICP/IP protocol stack for changing network layer are (English：
Application programming interface, referred to as " API ") etc. function related with network interaction portion forms
Module.This is not restricted for the embodiment of the present invention.
S110 detects first status transmission, wherein first server is transmitted by first path to second server
This is first-class, and there are X paths, X to be more than or equal to 2 between the first server and the second server, and it is first that this is first-class
The arbitrary stream that server is transmitted to second server.
S120, when according to the first status transmission, determining the first path congestion and the first flow velocity is big
When the first flow rate threshold, which is split as N subflow, wherein N is less than or equal to X.
S130 transmits the first subflow in the N subflow by the first path, passes through the i-th path transmission N subflow
In the i-th subflow, wherein i be 2 to N in any one.
The method of transmission data provided in an embodiment of the present invention detects first status transmission first, when determining first
Congestion is flowed, and when the first flow velocity is more than the first flow rate threshold, just executes the first operation of fractionation, and pass through fractionation
Subflow transmission data afterwards or business.Only just implement multithread parallel transmission when there are more subflow transmission demands, to not needing
The stream for carrying out multiple stream transmission does not create subflow, can effectively reduce the subflow quantity in system, avoids small stream from being cut, therefore can be with
It reduces because small stream is split as the expense and out of order cost that multiple subflows are brought, better user experience.
Specifically, Fig. 6 is the method schematic diagram of the transmission data of one embodiment of the invention, as shown in fig. 6, with primary
For FTP transmission, in S110, source server A detects first status transmission first, and first path is：Source services
Device A-interchanger 1-interchanger, 2-interchanger 5-destination server B, source server A is by first path to destination server
B transmits that this is first-class, which is used for uniquely carrying that this is first-class, for example, the first five-tuple can be unique
One group of five-tuple, i.e. source host IP+ destination hosts IP+IP Packet types+transport layer source port+transport layer destination interface.In this way,
It can uniquely determine and transmit the first first path.It can also be seen that source server A and destination server B from Fig. 6
Between there are three transmission paths, i.e. X is equal to 3, this three paths is respectively：Source server A-1-interchanger of interchanger 2-
5-destination server of interchanger B, source server A-interchanger 1-interchanger, 3-interchanger, 5-destination server B, source service
This three paths of device A-interchanger 1-interchanger, 4-interchanger, 5-destination server B.
In S120, source server A transmits the first first path according to the first status transmission, when determining
When congestion, and the first flow velocity be more than the first flow rate threshold when, wherein first flow rate threshold be the first stream
This first-class is split as N subflow by fast threshold limit.
Specifically, source server A by detecting first status transmission, is transmitted when determining at the first path
In congestion state, and the first flow velocity be more than the first flow velocity threshold limit when, need to split really first-class
When, this first-class is just split as N subflow, wherein N is less than or equal to X, that is, the item number of the subflow after splitting cannot be more than
The number in existing path between the first server and the second server.By taking Fig. 6 as an example, i.e. N should be less than or be equal to 3.
Here the value of N can be depending on as defined in system.For example, system provides that the item number for the subflow that a stream can be split is not
When more than 3, N here should be less than or equal to 3, and certainly, N can also be to meet other values as defined in system, the present invention
This is not restricted for embodiment.
It should be understood that in embodiments of the present invention, which is merely representative of the first flow velocity threshold limit,
Without any restrictions should be caused to the embodiment of the present invention.
Optionally, the subflow after first-class fractionation may be used with first-class identical source host IP and destination host IP,
But using different transmission control protocol/User Data Protocol (Transmission Control Protocol/User
Datagram Protocol, referred to as " TCP/UDP ") port numbers, for example, the IP of first source server A is in Fig. 6
192.168.1.2, the IP of destination server B is 192.168.2.2, and Fig. 7 is in Fig. 6 by the first-class transmission split into after subflow
The schematic diagram of the method for data, as shown in fig. 7, subflow 1 and subflow 2 are the subflow after first-class fractionation, subflow 1 and subflow 2 are still
20000 are taken using TCP source port number and destination slogan with first-class identical source host IP and destination host IP, subflow 1
With 8000, but the TCP source port number of subflow 2 and destination slogan take 20001 and 8000.Under present mechanism, it can establish simultaneously
The item number of subflow depends on the configuration of the server OS of source host and destination host.
Optionally, the subflow after first-class fractionation may be used from first-class different source host IP and destination host IP,
Under present mechanism, the item number of the subflow that can be established simultaneously depends on how many IP pairs of source host and destination host.For example, with
For Fig. 6 and Fig. 7, if source server A and destination server B in addition to 192.168.1.2 and 192.168.2.2 this to IP with
Outside, it is 192.167.1.2 and 192.167.2.2 that they also have IP address respectively, then the two can also establish IP by this another
A new subflow, the i.e. IP of subflow 1 used to IP that for 192.168.1.2 and 192.168.2.2, subflow 2 uses to for
192.167.1.2 with 192.167.2.2.Obviously, the quantity limitation of subflow depends on source host and destination host both ends one at this time
Shared how many available IP address are to (pairs).
In S130, source server A transmits the first subflow in the N subflow by the first path, passes through the i-th path
Transmit the i-th subflow in the N subflow, wherein i is any one in 2 to N.
Specifically, after fractionation in N subflow, the first subflow identical with first path is transmitted that there are one,
First subflow is transmitted by the first path, in remaining subflow, all there are one transmit the subflow for each subflow
Path, and the path for transmitting every subflow is different, i.e., the five-tuple of every subflow is different.Under normal circumstances, it is
The value of system regulation N is no more than 3.For example, illustrated by taking Fig. 6 and Fig. 7 as an example, when N is 2, first path transmission here
It is subflow 1, i.e., subflow 1 is the first subflow, and the path for transmitting subflow 1 is identical with first path is transmitted, and transmits the road of subflow 2
Diameter is assumed to the second path, and the transmission path of subflow 2 is：Source server A-interchanger 1-interchanger, 3-interchanger, 5-purpose
Server B, i.e. subflow 1 are different from the transmission path of subflow 2.The five-tuple of subflow 1 is identical with first five-tuple, and
The five-tuple of subflow 2 and the five-tuple of subflow 1 are different.It should be understood that first path here can also transmit subflow 2,
I.e. subflow 2 can also be the first subflow, and first path can also be any one path, as long as transmitting first path i.e.
Can, cause any restrictions without coping with first path or the first subflow.
It should be understood that in an embodiment of the present invention, the first subflow can be any one subflow in N subflow, this hair
This is not restricted for bright embodiment.
It should also be understood that can not also include the first subflow, i.e., in the subflow after fractionation in an embodiment of the present invention
Do not include the path subflow identical with first path is transmitted of transmission subflow, that is to say, that be not present and first in subflow
The identical subflow of five-tuple of stream, this is not restricted for the embodiment of the present invention.
Start it should also be understood that in an embodiment of the present invention, between source server A and destination server B transmission data or
Can establish a plurality of data flow or Business Stream when person's business simultaneously, every stream can be according to the method for the embodiment of the present invention at
Reason, this is not restricted for the embodiment of the present invention.
It should also be understood that in an embodiment of the present invention, only with the signal of Fig. 6 and the method for transmission data shown in Fig. 7
It is illustrated for figure, but the embodiment of the present invention is not restricted to this.
Optionally, as one embodiment, when according to the first status transmission, determining the first path not congestion
And/or the first flow velocity is when being less than or equal to first flow rate threshold, by the first path to the second server
It transmits described first-class.
Specifically, working as according to detecting as a result, determining that the first-class not congestion and/or the first flow velocity are small
When the first flow velocity threshold limit, then proves that this is first-class without fractionation, therefore, the first path can be continued through
It is first-class that this is transmitted to second server.
Optionally, one embodiment, this method 100 can be used as further comprising the steps of：
Step 1, the status transmission of every subflow in the N subflow is detected；
Step 2, when the flow velocity of the jth path congestion and the jth subflow that determine transmission jth subflow is more than second flow speed threshold
When value, determine that the jth subflow needs to split again, wherein j is any one in 1 to N；
When N is less than default maximum subflow number, which is split out into N+T subflows again, wherein during T is 1 to M
Any one, N+M is less than or equal to the default maximum subflow number；
Step 3, pass through the N+T path transmissions N+T subflows.
Specifically, by it is first-class split into subflow after, the status transmission for detecting every subflow can be continued, work as detection
To a certain paths of a certain subflow of transmission, for example, it may be jth path, j be 1 to N in any one or it is a few
Paths also congestion, and the big second flow speed threshold value of flow velocity of jth subflow, or the son that is carried on the path of a few congestions
When the flow velocity of stream is respectively greater than respective flow velocity threshold limit, determine that jth subflow or a few subflows need to split,
In, which is the flow velocity threshold limit of the jth subflow, if at this point, the number N of subflow is not above default maximum
Subflow number, or also have the connection signal of available subflow at present, i.e., in the presence of also having available path at present, it was demonstrated that can be with
Continue the subflow of fractionation congestion, which is that system provides the threshold limit of subflow item number, at this point, will continue to tear open
Divide these subflows that needs are split.The subflow newly splitted out can be transmitted by new path, for example, can be by jth
Stream splits out one or more of subflows, for example, it may be N+T subflows, T is any one in 1 to M, and what is newly split out is every
The path of subflow and the path of already present transmission subflow are all different, that is, pass through N+T path transmissions N+T
Stream, since the number of subflow after fractionation can be more than N original subflow, the subflow newly increased can be in the path newly increased
On be transmitted.Also, after splitting subflow, there is currently subflow total item number be less than or equal to system provide
Default maximum subflow number, i.e. N+M needs to be less than or equal to the default maximum subflow number.
It should be understood that in embodiments of the present invention, which is merely representative of the flow velocity threshold limit of subflow, every
The size of the flow velocity threshold limit of subflow may be the same or different, and this is not restricted for the embodiment of the present invention.
It should also be understood that in embodiments of the present invention, which is merely representative of the subflow item number that may be present
Threshold limit, without any restrictions should be caused to the embodiment of the present invention.
It is illustrated by taking the schematic diagram of the method for transmission data shown in Fig. 7 as an example, when the transmission first first via
Diameter undergo congestion, and the first flow velocity be more than the first flow velocity threshold limit when, can be by the first-class fractionation
For subflow 1 and subflow 2, the path for transmitting subflow 1 is identical as first path, as first path, transmits the path of subflow 2
For a new path, it is assumed that it is the second path, when detecting that the path of transmission subflow 2 is in congestion state, and
The flow velocity of the subflow 2 is more than the flow velocity threshold limit of the subflow 2, then needing to continue to split subflow 2, it is assumed that system provides subflow
Item number no more than 3, and only exist two subflows at present, therefore, it was demonstrated that at most can also continue to split out one it is new
Subflow, path and the path for transmitting original subflow for transmitting this new subflow are all different.Therefore, continue to split subflow 2, example
Such as, Fig. 8 be by Fig. 7 neutron currents 2 split after transmission data method schematic diagram, as shown in figure 8, subflow 2 split after at
Path for subflow 2-1 and subflow 2-2, transmission subflow 2-1 is identical as the path of subflow 2 is transmitted in Fig. 7 as transmission, transmits subflow
The path of 2-2 is different from the path for transmitting subflow 1 and subflow 2 in Fig. 7, and the transmission path of subflow 2-2 is：Source server A-
Interchanger 1-interchanger, 4-interchanger, 5-destination server B, the i.e. five-tuple of subflow 2-2 and subflow 2 and subflow 1 are different.
In this way, the data flow or Business Stream between source server A and destination server B can be carried out at the same time biography by this three subflows
It is defeated.
It should be understood that in an embodiment of the present invention, continue to split can be any subflow in subflow, as long as passing
The path congestion of the defeated subflow, and the flow velocity of the subflow is more than the flow velocity threshold limit of the subflow, and there is also can at present
When the item number of subflow connection signal or subflow is less than default maximum subflow number, it may continue to split.The present invention is implemented
This is not restricted for example.
Can not also include identical with the path for transmitting original subflow it should also be understood that in the subflow newly splitted out
Subflow, for example, subflow 2 is split into subflow 2-1 and subflow 2-2, the path for transmitting subflow 2-1 and subflow 2-2 can also and pass
The path of defeated subflow 2 is different, and this is not restricted for the embodiment of the present invention.
Therefore, the method for transmission data provided in an embodiment of the present invention can be adjusted according to the transmission situation dynamic of subflow
The number of subflow, when subflow congestion, and when the flow velocity of the subflow is more than the flow velocity threshold limit of the subflow, and current son
When the item number of stream is less than the threshold limit of subflow item number, the embodiment of the present invention can continue to execute the operation for splitting the subflow.Cause
This, can improve user experience, improve the rate of transmitting data stream or Business Stream, and mechanism is more flexible.
Optionally, as one embodiment, this method 100 is further comprising the steps of：
Step 4, the status transmission of every subflow is detected；
Step 5, when the flow velocity of congestion and/or at least two subflows is not both less than in the path of at least two subflows of determining transmission
Or when equal to the second flow speed threshold value, by this, at least two articles of subflows merge into a subflows；
Step 6, pass through a path transmissions a subflows, wherein the paths a are the road for transmitting at least two articles subflows
Any one paths in diameter.
Specifically, by it is first-class split into subflow after, the status transmission for detecting every subflow can be continued, work as detection
To the path of at least two subflows of transmission not in congestion and/or the flow velocity of at least two subflows is respectively smaller than or equal to respective
Flow velocity threshold limit when, for example, the flow velocity threshold limit be second flow speed threshold value, determine that at least two subflows need to close for this
And these combined subflows of needs can be merged a subflows, by a subflow subflow transmission datas after merging or
Business, the paths a for transmitting a subflows can be any one article in the path for transmit that several subflows for needing to merge originally
Path.
It should be understood that in an embodiment of the present invention, a subflows flow merely to stating that article after subflow merges, without
Reply the embodiment of the present invention causes any restrictions.
It should also be understood that in an embodiment of the present invention, the flow velocity threshold limit of every subflow can be identical, for example, the stream
Fast threshold limit can be second flow speed threshold value, and the flow velocity threshold limit of every subflow can also be different, at this point, judging subflow
Flow velocity when whether being more than threshold value, it should the respective flow velocity threshold limit of every subflow of being subject to, the embodiment of the present invention is herein not
It is restricted.
It is illustrated by taking the schematic diagram of the method for transmission data shown in Fig. 7 as an example, when by detection, transmission 1 He of subflow
It the path of subflow 2, can not in congestion and/or when the flow velocity of subflow 1 and subflow 2 is respectively smaller than respective flow velocity threshold limit
To merge subflow 1 and subflow 2, the path of the subflow after transmission merging can be the path for transmitting original subflow 1, also may be used
To be the path of the original subflow of transmission 2, i.e., subflow 1 and 2 is merged into new subflow, the path for transmitting this new subflow can be with
For：Source server A-interchanger 1-interchanger, 2-interchanger, 5-destination server B, at this point, becoming transmission shown in fig. 6
The method of data, or transmit the path of this new subflow and may be：Source server A-1-interchanger of interchanger 3-is handed over
Change planes 5-destination server B.Pass through the new subflow and the original subflow transmitting data stream not merged or business after merging
Stream.
It should be understood that in an embodiment of the present invention, the path of the subflow after transmission merging may not be transmission and need to close
And subflow path in any one paths.Illustrate by taking Fig. 7 as an example, i.e., subflow 1 and subflow 2 is merged into rear new son
The path of stream can also be：Source server A-interchanger 1-interchanger, 4-interchanger, 5-destination server B, the present invention are implemented
This is not restricted for example.
Therefore, the method for transmission data provided in an embodiment of the present invention can be adjusted according to the transmission situation dynamic of subflow
The number of subflow, when subflow is not in congestion, and when the flow velocity of subflow is less than flow velocity threshold limit, the embodiment of the present invention can be with
Execute the operation for merging subflow.It is effectively reduced the waste of resource and the expense of signaling, user experience can be improved, mechanism is more
Flexibly.
Optionally, as one embodiment, in an embodiment of the present invention, this method 100 can also include：
Step 7, which is determined as to the second flow speed threshold value of first subflow.
Specifically, being first path due to transmitting the first path, in subflow, the path of the first subflow is transmitted
Be also first path, that is, transmit the first path with transmission the path of first subflow it is identical, therefore, can by this first
Window value before stream fractionation is set as the window value of first subflow, i.e., by first flow velocity threshold limit (first flow velocity
Threshold value) it is determined as the flow velocity threshold limit (second flow speed threshold value) of first subflow, in this manner it is possible to utilize the first flow velocity threshold
Value judges whether first subflow needs to split.
To be illustrated for the method for Fig. 6 and transmission data shown in Fig. 7, this first-class is split as subflow 1 and son
Stream 2, the path for transmitting subflow 1 is identical as the first path, and as the first path therefore can be first by this
Flow velocity threshold limit is set as the flow velocity threshold limit of subflow 1, by the flow velocity threshold limit, goes to judge whether subflow 1 needs
Continue to split.
It should be understood that in an embodiment of the present invention, it, can also be by the flow velocity of first subflow if the first subflow needs to split
Threshold limit is set as in the subflow after splitting first subflow, the stream of subflow identical with the transmission path of first subflow
Fast threshold limit.For example, being illustrated by taking Fig. 7 and Fig. 8 as an example, the flow velocity threshold limit of the subflow 2 in Fig. 7 can be set to
The flow velocity threshold limit of Fig. 8 neutron currents 2-1 goes judgement to be that subflow 2-1 is no and needs to continue to execute to tear open using the flow velocity threshold limit
Molecular flow operates.This is not restricted for the embodiment of the present invention.
Therefore, the method for transmission data provided in an embodiment of the present invention sets the first flow velocity threshold limit to
The flow velocity threshold limit of subflow identical with first path in subflow goes to judge that the subflow is according to the flow velocity threshold limit
No needs continue to split, and mechanism is more flexible, and user experience is more preferable.
Optionally, as one embodiment, the first-class status transmission is detected, may include：
The first average RTT value is counted, and/or enables ecn (explicit congestion notification) mechanism to determine whether to receive
It is noticed to the first path congestion is transmitted；
Wherein, when the first average RTT value is more than preset round-trip delay threshold value, and/or biography is received
When the defeated first path congestion notice, determines and transmit the first path congestion；Or when the average round trip of the preceding stream
When prolonging value less than or equal to preset round-trip delay threshold value, and/or it is not received by the congestion for transmitting the first path
When notice, determines and transmit the first path not congestion.
Specifically, source server A can be according to the TCP acknowledgment character (English that destination server B is returned：
Acknowledgement, referred to as " ACK ") statistics first average RTT (English：Round-trip time, letter
Referred to as " RTT ") value, when RTT is more than the threshold value of setting, for example, can be preset round-trip delay threshold value or RTT time-out
Number be more than some setting threshold value when, illustrate to transmit the first path congestion, when RTT be less than or equal to it is preset
When round-trip delay threshold value or when the number of RTT time-out is less than or equal to the threshold value of some setting, illustrate to transmit this first-class
Path not congestion.
Alternatively, first server can enable ecn (explicit congestion notification) (English：explicit congestion
Notification, referred to as " ECN ") mechanism, if the path experience congestion that transmission first flows through, i.e. interchanger exit port buffer
The data volume of register (buffer) caching is more than threshold value, then ECN mechanism can stamp ECN marks on the first data message
Note.After the message arrival destination server B for stamping ECN labels, destination server B, which is perceived, to be transmitted on the first path
There is congestion, then gives the first source server A to initiate ECN notices and perceived after source server A receives ECN notices
Transmit the first path congestion.
It should be understood that in an embodiment of the present invention, both detection methods can use simultaneously, can also be used alone,
This is not restricted for the embodiment of the present invention.
It should also be understood that in an embodiment of the present invention, only by taking both detect the method for first-class status transmission as an example into
Row explanation, but the embodiment of the present invention is not limited to this, for example, it is also possible to include the method that other detect first-class status transmission.
It should also be understood that in an embodiment of the present invention, the method for detecting the status transmission of subflow can be first-class with detection
The method of status transmission is identical, that is, counts the average RTT value of the subflow, and/or enable ecn (explicit congestion notification) mechanism, really
The fixed congestion notification for whether receiving the path for transmitting the subflow.When detecting son identical with first path is transmitted in subflow
When flowing the status transmission of (the first subflow), it can go to judge to be somebody's turn to do using the first flow velocity threshold limit (the first flow rate threshold)
Whether the first subflow is split, and can also judge whether first subflow is torn open using two kinds of detection methods
Point.This is not restricted for the embodiment of the present invention.
It should also be understood that in an embodiment of the present invention, the size of above-mentioned each process and each step number is not meant to hold
The priority of row sequence, depending on the execution sequence of each process should be with its function and inherent logic, the reality without coping with the present invention
The implementation process for applying example causes any restrictions.
Therefore, the method for transmission data provided in an embodiment of the present invention, first detection current data stream or Business Stream
Status transmission is only just implemented multithread parallel transmission when there is more subflow transmission demands, is not done to that need not carry out multiple stream transmission
More subflow transmission, can effectively reduce the subflow quantity in system, small stream is avoided to be split, it is possible to reduce because a stream is torn open
It is divided into the expense and out of order cost that multiple subflows are brought.And it can be according to of the transmission situation dynamic adjustment subflow of subflow
Number improves the rate of transmitting data stream or Business Stream, can improve user experience, mechanism is more flexible.
The server of the embodiment of the present invention will be described in detail below.
Fig. 9 shows the schematic block diagram of the server 200 of one embodiment of the invention, as shown in figure 9, the server packet
Processing unit 210 and transmission unit 220 are included, the server is first server.
Processing unit 210 is for detecting first status transmission, wherein first server is by first path to second
This is first-class for server transport, and there are X paths, X to be more than or equal to 2 between the first server and the second server；
The processing unit 210 is additionally operable to according to the first status transmission, when determining the first path congestion, and should
First flow velocity be more than the first flow rate threshold when, by this it is first-class be split as N subflow wherein, N be less than or equal to X；
The transmission unit 220 is used to transmit the first subflow in the N subflow by the first path, passes through the i-th path
Transmit the i-th subflow in the N subflow, wherein i is any one in 2 to N.
Therefore, server provided in an embodiment of the present invention detects first status transmission first, determines first-class congestion
When, and when the first flow velocity is more than the first flow rate threshold, just determines and execute the first operation of fractionation, and pass through fractionation
Subflow transmission data afterwards or business.Only just implement multithread parallel transmission when there are more subflow transmission demands, to not needing
It carries out multiple stream transmission and does not do more subflow transmission, the subflow quantity in system can be effectively reduced, avoid small stream from being split, therefore can
To reduce because a stream is split as the expense and out of order cost that multiple subflows are brought, user experience is improved.
Optionally, as one embodiment, which is additionally operable to：
Detect the status transmission of every subflow in the N subflow；Simultaneously when determining the jth path congestion of transmission jth subflow
And the flow velocity of the jth subflow be more than second flow speed threshold value when, determine that the jth subflow needs to split again, wherein j be 1 to N in
Any one；When determining that N is less than default maximum subflow number, which is split out into N+T subflows again, wherein T
Any one in being 1 to M, N+M are less than or equal to the default maximum subflow number；
The transmission unit 220 is additionally operable to：Pass through the N+T path transmissions N+T subflows.
Optionally, as one embodiment, which is additionally operable to：
Detect the status transmission of every subflow；When the path not congestion and/or at least two for determining at least two subflows of transmission
When the flow velocity of subflow is both less than or equal to the second flow speed threshold value, by this, at least two articles of subflows merge into a subflows；
The transmission unit 220 is additionally operable to：Pass through a path transmissions a subflows, wherein the paths a are to transmit this extremely
Any one paths in the path of few two subflows.
Therefore, server provided in an embodiment of the present invention, can be according to of the transmission situation dynamic adjustment subflow of subflow
Number, when subflow congestion, and the flow velocity of the subflow is more than the flow velocity threshold limit (the second threshold limit) of the subflow, Yi Jizi
When the item number of stream is less than defined default maximum subflow number, the embodiment of the present invention can continue to execute the operation for splitting the subflow.
When subflow is not in congestion or when the flow velocity of subflow is less than the flow velocity threshold limit of the subflow, the embodiment of the present invention can be held
Row merges the operation of subflow, can improve user experience, improves the rate of transmitting data stream or Business Stream, and mechanism is more flexible.
Optionally, as one embodiment, which is additionally operable to：
First first flow rate threshold is determined as to the second flow speed threshold value of first subflow.
Optionally, as one embodiment, which is additionally operable to：
According to the first status transmission, determine the first path not congestion and/or the first flow velocity be less than or
When person is equal to first flow rate threshold, which is additionally operable to：It should to second server transmission by the first path
It is first-class.
Optionally, as one embodiment, which is specifically used for：
It counts the first average RTT value and/or enables ecn (explicit congestion notification) mechanism to determine whether to receive
Transmit the congestion notification in the first path；
Wherein, when determining that the first average RTT value is more than preset round-trip delay threshold value and/or when connecing
When receiving the congestion notification for transmitting the first path, the first path congestion is determined；
When determining that the first average RTT value is less than or equal to preset round-trip delay threshold value and/or work as
When being not received by the congestion notification for transmitting the first path, the first path not congestion is determined.
It should be understood that server 200 according to the ... of the embodiment of the present invention can correspond to the first server in the embodiment of the present invention,
And the above and other operation and/or function of each unit in the server 200 is realized each in Fig. 4 to Fig. 8 respectively
The corresponding flow of method, for sake of simplicity, details are not described herein.
Figure 10 is the schematic diagram of server 300 according to the ... of the embodiment of the present invention.As shown in Figure 10, the server
300 include memory 310 and processor 320, is mutually communicated by internal connecting path between the memory 310 and processor 320
Letter transmits control and/or data-signal.
The memory 310 is for storing program code；
The processor 320 is for calling the program code to realize the method in the various embodiments described above of the present invention.
Server 300 shown in Fig. 10 can realize each process realized in earlier figures 4 to the embodiment of Fig. 8, be
It avoids repeating, which is not described herein again.
It should be understood that in embodiments of the present invention, which can be central processing unit CPU, the processor 320
It can also be other general processors, digital signal processor (English：Digital signal processor, referred to as
" DSP "), application-specific integrated circuit (English：Application-specific integrated circuit, referred to as
" ASIC "), ready-made programmable gate array (English：Field programmable gate qrray, referred to as " FPGA ") or
Other programmable logic device, discrete gate or transistor logic, discrete hardware components etc..General processor can be micro-
Processor or the processor can also be any conventional processor etc..
The memory 310 may include read-only memory and random access memory, and to processor 310 provide instruction and
Data.The a part of of memory 310 can also include nonvolatile RAM.For example, memory 310 can also be deposited
Store up the information of device type.It is apparent to those skilled in the art that for convenience and simplicity of description, it is above-mentioned to retouch
The specific work process of system, device and the unit stated, can refer to corresponding processes in the foregoing method embodiment, herein no longer
It repeats.
During realization, each step of the above method can pass through the integrated logic circuit of the hardware in processor 320
Or the instruction of software form is completed.The step of transmission data method in conjunction with disclosed in the embodiment of the present application, can directly embody
Execute completion for hardware processor, or in processor 320 hardware and software module combination execute completion.Software module can
To be located in storage medium.The storage medium is located at memory 310, and processor 320 reads the information in memory 310, in conjunction with
Its hardware completes the step of above method.To avoid repeating, it is not detailed herein.
It is appreciated that the memory in the embodiment of the present invention can be volatile memory or nonvolatile memory, or
It may include both volatile and non-volatile memories.Wherein, nonvolatile memory can be read-only memory (English：
Read-only memory, referred to as " ROM "), programmable read only memory (English：Programmable ROM, referred to as
" PROM "), Erasable Programmable Read Only Memory EPROM (English：Erasable PROM, referred to as " EPROM "), electric erasable can compile
Journey read-only memory (English：Electrically EPROM, EEPROM) or flash memory.Volatile memory can be arbitrary access
Memory (English：Random access memory, and referred to as " RAM) ", it is used as External Cache.It should be noted that herein
The memory of the system and method for description is intended to the memory of including but not limited to these and any other suitable type.
The embodiment of the present invention additionally provides a kind of computer-readable medium, for storing computer program, the computer journey
Sequence includes the method for executing the transmission data of the embodiment of the present application in above-mentioned Fig. 4 to Fig. 8.The readable medium can be ROM
Or RAM, the embodiment of the present invention are not restricted this.
It should be understood that the terms "and/or" and " at least one of A or B ", only a kind of description affiliated partner
Incidence relation, indicate may exist three kinds of relationships, for example, A and/or B, can indicate：Individualism A, exists simultaneously A and B,
These three situations of individualism B.In addition, character "/" herein, it is a kind of relationship of "or" to typically represent forward-backward correlation object.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description,
The specific work process of device and unit, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.
In several embodiments provided herein, it should be understood that disclosed systems, devices and methods, it can be with
It realizes by another way.For example, the apparatus embodiments described above are merely exemplary, for example, the unit
It divides, only a kind of division of logic function, formula that in actual implementation, there may be another division manner, such as multiple units or component
It can be combined or can be integrated into another system, or some features can be ignored or not executed.Another point, it is shown or
The mutual coupling, direct-coupling or communication connection discussed can be the indirect coupling by some interfaces, device or unit
It closes or communicates to connect, can be electrical, machinery or other forms.
The unit illustrated as separating component may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, you can be located at a place, or may be distributed over multiple
In network element.Some or all of unit therein can be selected according to the actual needs to realize the mesh of this embodiment scheme
's.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, it can also
It is that each unit physically exists alone, it can also be during two or more units be integrated in one unit.
The above, the only specific implementation mode of the application, but the protection domain of the application is not limited thereto, it is any
Those familiar with the art can easily think of the change or the replacement in the technical scope that the application discloses, and should all contain
It covers within the protection domain of the application.Therefore, the protection domain of the application shall be subject to the protection scope of the claim.
Claims (12)
1. a kind of method of transmission data, which is characterized in that including：
Detect first status transmission, wherein first server transmits described first by first path to second server
Stream, there are X paths, X to be more than or equal to 2 between the first server and the second server；
When according to the first status transmission, determining that the first path congestion and the first flow velocity be more than the
When one flow rate threshold, first-class it is split as N subflow by described, wherein N is less than or equal to X；
The first subflow in the N subflow is transmitted by the first path, by N subflow described in the i-th path transmission
The i-th subflow, wherein i be 2 to N in any one.
2. according to the method described in claim 1, it is characterized in that, the method further includes：
Detect the status transmission of every subflow in the N subflow；
When determining that the jth path congestion of transmission jth subflow and the flow velocity of the jth subflow are more than second flow speed threshold value, really
The fixed jth subflow needs to split again, wherein j is any one in 1 to N；
When N is less than default maximum subflow number, N+T subflows are split out from the jth subflow, wherein T is any one in being 1 to M
A, N+M is less than or equal to the default maximum subflow number；
Pass through N+T subflows described in N+T path transmissions.
3. method according to claim 1 or 2, which is characterized in that the method further includes：
Detect the status transmission of every subflow；
When the flow velocity of congestion and/or at least two subflows is not both less than or is equal to institute in the path of at least two subflows of determining transmission
When stating second flow speed threshold value, at least two articles of subflows are merged into a subflows；
Pass through a subflows described in a path transmissions, wherein the paths a are in the path of at least two articles subflows described in transmission
Any one paths.
4. according to the method in claim 2 or 3, which is characterized in that the method further includes：
First first flow rate threshold is determined as to the second flow speed threshold value of first subflow.
5. according to the method described in claim 1, it is characterized in that, the method further includes：
When according to the first status transmission, determining the first path, congestion and/or the first flow velocity be not small
It is described first-class to second server transmission by the first path when first flow rate threshold.
6. the method according to any one of claims 1 to 5, it is characterized in that, described detect first status transmission,
Including：
It counts the first average RTT value and/or enables ecn (explicit congestion notification) mechanism to determine whether to receive biography
The congestion notification in the defeated first path；
Wherein, when the first average RTT value is more than preset round-trip delay threshold value and/or when receiving biography
When the congestion notification in the defeated first path, the first path congestion is determined；
It ought connect when the first average RTT value is less than or equal to preset round-trip delay threshold value and/or not
When receiving the congestion notification for transmitting the first path, the first path not congestion is determined.
7. a kind of server, which is characterized in that the server is first server, and the server includes processing unit and hair
Send unit：
The processing unit is for detecting first status transmission, wherein the first server is by first path to the
It is first-class described in two server transports, be more than there are X paths, X between the first server and the second server or
Person is equal to 2；
The processing unit is additionally operable to when according to the first status transmission, determining the first path congestion and described
When first flow velocity is more than the first flow rate threshold, first-class it is split as N subflow by described, wherein N is less than or equal to X；
The transmission unit is used to transmit the first subflow in the N subflow by the first path, is passed by the i-th path
The i-th subflow in the defeated N subflow, wherein i is any one in 2 to N.
8. server according to claim 7, which is characterized in that the processing unit is additionally operable to：
Detect the status transmission of every subflow in the N subflow；
When determining that the jth path congestion of transmission jth subflow and the flow velocity of the jth subflow are more than second flow speed threshold value, really
The fixed jth subflow needs to split again, wherein j is any one in 1 to N；
When N is less than default maximum subflow number, N+T subflows are split out from the jth subflow, wherein T is any one in being 1 to M
A, N+M is less than or equal to the default maximum subflow number；
The transmission unit is additionally operable to：Pass through N+T subflows described in N+T path transmissions.
9. server according to claim 7 or 8, which is characterized in that the processing unit is additionally operable to：
Detect the status transmission of every subflow；
When the flow velocity of congestion and/or at least two subflows is not both less than or is equal to institute in the path of at least two subflows of determining transmission
When stating second flow speed threshold value, at least two articles of subflows are merged into a subflows；
The transmission unit is additionally operable to：Pass through a subflows described in a path transmissions, wherein the paths a are described in transmission
Any one paths in the path of at least two subflows.
10. server according to claim 8 or claim 9, which is characterized in that the processing unit is additionally operable to：
First first flow rate threshold is determined as to the second flow speed threshold value of first subflow.
11. server according to claim 7, which is characterized in that the transmission unit is additionally operable to：When the processing unit
According to the first status transmission, determine the first path not congestion and/or the first flow velocity be less than or
It is described first-class to second server transmission by the first path when equal to first flow rate threshold.
12. the server according to any one of claim 7 to 11, which is characterized in that the processing unit is specifically used for：
It counts the first average RTT value and/or enables ecn (explicit congestion notification) mechanism to determine whether to receive biography
The congestion notification in the defeated first path；
Wherein, when the first average RTT value is more than preset round-trip delay threshold value and/or when receiving biography
When the congestion notification in the defeated first path, the first path congestion is determined；
It ought connect when the first average RTT value is less than or equal to preset round-trip delay threshold value and/or not
When receiving the congestion notification for transmitting the first path, the first path not congestion is determined.
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| WO2020119328A1 (en) * | 2018-12-14 | 2020-06-18 | 中兴通讯股份有限公司 | Data transmission method, apparatus and device, and storage medium |
| WO2020253488A1 (en) * | 2019-06-17 | 2020-12-24 | 华为技术有限公司 | Method and device for congestion control, communication network, and computer storage medium |
| CN113839928A (en) * | 2021-09-02 | 2021-12-24 | 杭州迪普科技股份有限公司 | Method and device for managing flow cleaning equipment |
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