CN107508762A - Network traffics transmission method and source device - Google Patents
Network traffics transmission method and source device Download PDFInfo
- Publication number
- CN107508762A CN107508762A CN201710707629.3A CN201710707629A CN107508762A CN 107508762 A CN107508762 A CN 107508762A CN 201710707629 A CN201710707629 A CN 201710707629A CN 107508762 A CN107508762 A CN 107508762A
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- Prior art keywords
- bandwidth
- source device
- detection messages
- minimum amount
- value
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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
- H04L47/22—Traffic shaping
- H04L47/225—Determination of shaping rate, e.g. using a moving window
-
- 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
- H04L47/25—Flow control; Congestion control with rate being modified by the source upon detecting a change of network conditions
Abstract
The present invention provides a kind of network traffics transmission method and source device.Bandwidth detection messages are sent to target device by source device through at least one intermediate equipment.Intermediate equipment and target device return to source device after bandwidth detection messages are received, by respective bandwidth value.Minimum amount of bandwidth is calculated according to the bandwidth value of return in source device, and controls message transmission speed according to minimum amount of bandwidth.Bandwidth by inquiring about intermediate equipment and target device is worth to minimum amount of bandwidth, and then the flow of source device is controlled according to minimum amount of bandwidth, reduces the probability for causing packet loss to retransmit because flow is excessive in network transmission.
Description
Technical field
The present invention relates to data communication technology field, in particular to a kind of network traffics transmission method and source device.
Background technology
During message is delivered to the other end of network from one end of network, many intermediate equipments can be passed through.If
Message flow is excessive, has exceeded the bandwidth of some intermediate equipments, may result in packet loss.For reliable connection, such as TCP, meeting
Solves the problems, such as packet loss caused by said circumstances by retransmission mechanism.
In currently existing scheme, retransmission mechanism is taken to solve the problems, such as that packet loss can cause network overhead big there is message is retransmitted
The drawbacks of.
The content of the invention
In order to overcome above-mentioned deficiency of the prior art, the technical problems to be solved by the invention are to provide a kind of network flow
Transmission method and source device are measured, it can reduce the probability for causing packet loss to retransmit because flow is excessive in network transmission.
First embodiment of the invention provides a kind of network traffics transmission method, and methods described includes：
Bandwidth detection messages are sent to target device by source device through at least one intermediate equipment；
The intermediate equipment and target device return to respective bandwidth value after the bandwidth detection messages are received
The source device；
Minimum amount of bandwidth is calculated according to the bandwidth value of return in the source device, and is controlled according to the minimum amount of bandwidth
Message transmission speed.
Second embodiment of the invention provides a kind of network traffics transmission method, and applied to source device, methods described includes：
Bandwidth detection messages are sent to target device through at least one intermediate equipment；
Receive the bandwidth that the intermediate equipment and/or target device each return after the bandwidth detection messages are received
Value；
Minimum amount of bandwidth is calculated according to the bandwidth value of return, and controls message to send speed according to the minimum amount of bandwidth
Degree.
3rd preferred embodiment of the invention provides a source device, and the source device includes：
Sending module, for bandwidth detection messages to be sent into target device through at least one intermediate equipment；
Receiving module, for receiving the intermediate equipment and/or target device after the bandwidth detection messages are received
The bandwidth value each returned；
Processing module, for minimum amount of bandwidth to be calculated according to the bandwidth value of return, and according to the minimum amount of bandwidth
Control message transmission speed.
In terms of existing technologies, the invention has the advantages that：
The present invention provides a kind of network traffics transmission method and source device.Methods described is applied to network transmission system, institute
Stating system includes the equipment of multiple communication connections.Bandwidth detection messages are sent to target by source device through at least one intermediate equipment
Equipment, to obtain the band of the bandwidth value of intermediate equipment and/or the target device between the source device and the target device
Width values.The intermediate equipment and target device return to institute after the bandwidth detection messages are received, by respective bandwidth value
State source device.Minimum amount of bandwidth is calculated according to the bandwidth value of return in source device, and is controlled and reported according to the minimum amount of bandwidth
Literary transmission speed.Thus, minimum amount of bandwidth is worth to by inquiring about the bandwidth of intermediate equipment and target device, and then according to minimum
Bandwidth value controls the flow of source device, reduces the probability for causing packet loss to retransmit because flow is excessive in network transmission.
To enable the above-mentioned purpose of invention, feature and advantage to become apparent, present pre-ferred embodiments cited below particularly, and
Accompanying drawing appended by cooperation, is described in detail below.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below by embodiment it is required use it is attached
Figure is briefly described, it will be appreciated that the following drawings illustrate only certain embodiments of the present invention, therefore be not construed as pair
The restriction of scope, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to this
A little accompanying drawings obtain other related accompanying drawings.
Fig. 1 is the block diagram for the network transmission system that present pre-ferred embodiments provide.
Fig. 2 is one of schematic flow sheet of network traffics transmission method that first embodiment of the invention provides.
Fig. 3 is the schematic flow sheet of the sub-step that step S130 includes in Fig. 2.
Fig. 4 is the schematic flow sheet of the sub-step that step S140 includes in Fig. 2.
Fig. 5 is the two of the schematic flow sheet for the network traffics transmission method that first embodiment of the invention provides.
Fig. 6 is the application schematic diagram for the network traffics transmission method that first embodiment of the invention provides.
Fig. 7 is one of schematic flow sheet of network traffics transmission method that the present invention second applies example offer.
Fig. 8 is the schematic flow sheet of the sub-step that step S240 includes in Fig. 7.
Fig. 9 is the two of the schematic flow sheet for the network traffics transmission method that second embodiment of the invention provides.
Figure 10 is the block diagram for the source device that third embodiment of the invention provides.
Icon：100- source devices；110- sending modules；120- starting modules；130- receiving modules；140- processing modules；
300- intermediate equipments；400- target devices.
Embodiment
Below in conjunction with accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Ground describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.Generally exist
The component of the embodiment of the present invention described and illustrated in accompanying drawing can be configured to arrange and design with a variety of herein.Cause
This, the detailed description of the embodiments of the invention to providing in the accompanying drawings is not intended to limit claimed invention below
Scope, but it is merely representative of the selected embodiment of the present invention.Based on embodiments of the invention, those skilled in the art are not doing
The every other embodiment obtained on the premise of going out creative work, belongs to the scope of protection of the invention.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent accompanying drawing in individual accompanying drawing.
Below in conjunction with the accompanying drawings, some embodiments of the present invention are elaborated.It is following in the case where not conflicting
Feature in embodiment and embodiment can be mutually combined.
Fig. 1 is refer to, Fig. 1 is the block diagram for the network transmission system that present pre-ferred embodiments provide.The system
The equipment that system includes multiple communication connections, message are transmitted between the equipment of communication connection.In the system, wherein one
When equipment has the demand for sending message, source device 100 can be used as by sending the equipment of message, and receiving the equipment of the message can make
For target device 400, the equipment of the message is forwarded between source device 100 and the target device 400 can then be used as centre
Equipment 300.That is, when source device 100 has the demand for sending message, the message that the source device 100 is sent is through at least
One intermediate equipment 300 is sent to the target device 400.As a kind of embodiment, the source device 100 and the target
Intermediate equipment 300 can also be not present between equipment 400, message is directly sent to the target device by the source device 100
400。
First embodiment
Refer to Fig. 2, Fig. 2 be the network traffics transmission method that first embodiment of the invention provides schematic flow sheet it
One.Methods described is applied to network transmission system.The equipment that the system includes multiple communication connections.Network traffics are passed below
The idiographic flow of transmission method is described in detail.
Bandwidth detection messages are sent to target device by step S110, source device 100 through at least one intermediate equipment 300
400。
In the present embodiment, in order to reduce the probability for causing packet loss to retransmit because flow is excessive, the source device 100 is by band
Wide probe messages are sent to target device 400 through at least one intermediate equipment 300, with obtain at least one intermediate equipment 300 and
The bandwidth value of target device 400.Thus, it is possible to avoid due to source device 100 send message flow it is excessive when, cause in exceeding
Between equipment 300 bandwidth value, and then cause packet loss retransmit situation, can also avoid because target device 400 is handled to come over
The situation for causing packet loss to retransmit.
In the embodiment of the present embodiment, the bandwidth detection messages that the source device 100 is sent can be ICMP
(Internet Control Message Protocol, Internet Control Message Protocol) request message.In order to by bandwidth detection messages with
General message makes a distinction, and the network transmission system presets the type of bandwidth detection messages.The basis of source device 100
The type transmission bandwidth probe messages of the bandwidth detection messages, such as, when bandwidth detection messages are icmp packet, setting is special
Different ICMP types are 200.
Step S130, the intermediate equipment 300 and target device 400, will be each after the bandwidth detection messages are received
From bandwidth value return to the source device 100.
Fig. 3 is refer to, Fig. 3 is the schematic flow sheet of the sub-step that step S130 includes in Fig. 2.The step S130 can be with
Including sub-step S131 and sub-step S132.
Sub-step S131, the intermediate equipment 300 and target device 400 are right after the bandwidth detection messages are received
The bandwidth detection messages received are parsed to obtain the type of the bandwidth detection messages, with according to the bandwidth detection report
Whether the bandwidth detection messages that the type of the type of text and the bandwidth detection messages of storage judges to receive are to need to return to band
The bandwidth detection messages of width values.
In the present embodiment, due to being previously stored with the types of bandwidth detection messages in the network transmission system, connecing
After receiving the bandwidth detection messages that the source device 100 is sent, the intermediate equipment 300 and target device 400 are by parsing
To the type of the bandwidth detection messages of reception, and by the type of the bandwidth detection messages and the bandwidth detection messages that prestore
Type is compared, so as to judge receive the bandwidth detection messages whether be need return bandwidth value bandwidth detection report
Text.
For example it is icmp packet to set bandwidth detection messages, and type identification is arranged to 200.The intermediate equipment 300 and
Target device 400 is icmp packet by parsing the bandwidth detection messages received, and type identification is arranged to 200, then may be used
Bandwidth detection messages using the bandwidth detection messages for judging to receive to need return bandwidth value.
Sub-step S132, it is the bandwidth detection messages for needing to return bandwidth value in the bandwidth detection messages for judging to receive
When, the intermediate equipment 300 searches respective outlet bandwidth value, and the target device 400 is searched its own processing capabilities and corresponded to
Bandwidth value, and bandwidth value is each sent to the source device 100.
In the present embodiment, the intermediate equipment 300 is receiving the bandwidth detection messages, and judges the bandwidth received
Probe messages are that the bandwidth value of local terminal outlet is searched when needing to return the bandwidth detection messages of bandwidth value, and by the bandwidth value
Source device 100 is sent to as icmp echo message.
The target device 400 is receiving the bandwidth detection messages, and the bandwidth detection messages for judging to receive are to need
When returning to the bandwidth detection messages of bandwidth value, search the disposal ability of local terminal, such as, local terminal can only processing costs be
BandWidthB flow, then it is sent to source device 100 using this value as icmp echo message.
When the message for judging to receive is not required to return the bandwidth detection messages of bandwidth value, the intermediate equipment 300 can
Not processed to the message, target device 400 can be handled according in general message.
Minimum amount of bandwidth is calculated according to the bandwidth value of return in step S140, the source device 100, and according to it is described most
Small bandwidth value controls message transmission speed.
Fig. 4 is refer to, Fig. 4 is the schematic flow sheet of the sub-step that step S140 includes in Fig. 2.The step S140 can be with
Including sub-step S141 and sub-step S142.
Sub-step S141, the source device 100 select minimum amount of bandwidth conduct from least one bandwidth value of reception
Initial minimum amount of bandwidth.
In the present embodiment, the source device 100 is after transmission bandwidth probe messages, receive the intermediate equipment 300 and
The bandwidth value that target device 400 returns.By processing, the source device 100 selects the minimum amount of bandwidth in multiple bandwidth values,
And using the minimum amount of bandwidth as initial minimum amount of bandwidth.
As a kind of embodiment, if the source device 100 only receives a bandwidth value (such as only target device 400
Or an intermediate equipment 300 returns bandwidth value), then can be directly using the bandwidth value as initial minimum amount of bandwidth.
Sub-step S142, the source device 100 are handled the initial minimum bandwidth with pre-set bandwidths offset, obtained
To minimum amount of bandwidth.
In the present embodiment, the source device 100 sets a pre-set bandwidths offset according to time situation.Obtaining
After stating initial minimum amount of bandwidth, the initial minimum amount of bandwidth and pre-set bandwidths offset are handled (such as it is described initial
Minimum amount of bandwidth subtracts pre-set bandwidths offset), obtain minimum amount of bandwidth.
Refer to Fig. 5, Fig. 5 be the network traffics transmission method that first embodiment of the invention provides schematic flow sheet it
Two.Methods described can also include step S120.
Step S120, the source device 100 start a timer, and the source device 100 connects before the timer expiry
The reply message narrowed to the bandwidth detection messages.
In the present embodiment, can be to be received by setting etc. after the source device 100 sends the bandwidth detection messages
The time of message is replied, avoids the source device 100 from being constantly in the state for waiting and receiving and replying message.As a kind of embodiment party
Formula, the source device 100 start a timer after the bandwidth detection messages are sent.Time-out time corresponding to the timer
It can be configured according to actual conditions, such as, 10s.Before the timer expiry, the source device 100 is waited and received
The bandwidth value of return.After the expiry of the timer, the source device 100 is then calculated according to the bandwidth value received to obtain
To the minimum amount of bandwidth.That is, after the expiry of the timer, if the target device 400 or intermediate equipment 300
Bandwidth value is not replied, the source device 100, which is no longer waiting for receiving, replys message.Thus, the source device 100 is avoided to locate always
In etc. it is to be received for the bandwidth detection messages reply message state.
Fig. 6 is refer to, Fig. 6 is the application schematic diagram for the network traffics transmission method that first embodiment of the invention provides.Under
Face introduce by way of example how transmission network flow.
As shown in fig. 6, source device A when to target device B transmitted traffics, it is necessary to by intermediate equipment 1, intermediate equipment 2
And intermediate equipment 3.Source device A, should according to one ICMP bandwidth detection messages of bandwidth detection messages type package set in advance
Bandwidth detection messages are sent to target device B by intermediate equipment 1, intermediate equipment 2 and intermediate equipment 3 successively.Source device A exists
After transmission bandwidth probe messages, one time-out time of setting (such as estimation intermediate equipment 1, intermediate equipment 2, intermediate equipment 3 and mesh
Marking device B can be received in 10s and be returned to reply message, then it is 10s that can set time-out time).Intermediate equipment 1, centre
Equipment 2 and intermediate equipment 3 analyze the type of bandwidth detection messages after source device A bandwidth detection messages are received, and are judging to connect
The bandwidth detection messages type of receipts is that intermediate equipment 1, intermediate equipment 2 and centre are set when needing to reply the type of message of bandwidth value
Standby 3 search the bandwidth value each exported respectively, and are sent to source device A as icmp echo message.Similarly, target device B is looked into
Look for the disposal ability of local terminal, such as, local terminal can only processing costs be BandWidthB flow, then using this value as icmp echo report
Text is sent to source device A.Before timer expiry, source device A receives intermediate equipment 1, intermediate equipment 2 and intermediate equipment successively
3 outlet bandwidth value Bandwidth1, Bandwidth2, Bandwidth3 returned, and the processing message that target device B is returned
Ability value be BandwidthB.Source device A can compare the size of aforementioned four value, and bandwidth value minimum in four values is made
For initial minimum amount of bandwidth BandwithMin.It is inclined that initial minimum amount of bandwidth BandwithMin is subtracted pre-set bandwidths by source device A
Shifting amount BandwithOffset, that is, BandwithdthMin-BandwidthOffset, outlet band is used as using this bandwidth value
Width, the message transmission speed in voltage input device A.Thus, can not only avoid because source device 100 sends the flow mistake of message
Greatly, the bandwidth value more than intermediate equipment 300 is caused, and then the situation for causing packet loss to retransmit, it can also avoid due to target device
400 processing do not come to cause the situation that packet loss retransmits.
Second embodiment
Fig. 7 is refer to, Fig. 7 is one of schematic flow sheet of network traffics transmission method that the present invention second applies example offer.
Methods described is applied to source device 100.Network traffics transmission method is illustrated below.
Step S210, bandwidth detection messages are sent to target device 400 through at least one intermediate equipment 300.
Step S230, receive the intermediate equipment 300 and/or target device 400 and receiving the bandwidth detection messages
The bandwidth value each returned afterwards.
Step S240, minimum amount of bandwidth is calculated according to the bandwidth value of return, and controlled according to the minimum amount of bandwidth
Message transmission speed.
Fig. 8 is refer to, Fig. 8 is the schematic flow sheet of the sub-step that step S240 includes in Fig. 7.The step S240 can be with
Including sub-step S241 and sub-step S242.
Sub-step S241, minimum amount of bandwidth is selected from least one bandwidth value of reception as initial minimum bandwidth
Value.
Sub-step S242, the initial minimum bandwidth is handled with pre-set bandwidths offset, obtains minimum amount of bandwidth.
Refer to Fig. 9, Fig. 9 be the network traffics transmission method that second embodiment of the invention provides schematic flow sheet it
Two.Methods described can also include step S220 and step S235.
Step S220, start a timer, returning for the bandwidth detection messages is received before the timer expiry
Multiple message.
In the present embodiment, the specific introduction on step S210~step S240 refer in first embodiment to step
S110~step S140 description.
3rd embodiment
Figure 10 is refer to, Figure 10 is the block diagram for the source device 100 that third embodiment of the invention provides.The source is set
Standby 100 can include sending module 110, receiving module 130 and processing module 140.
Sending module 110, for bandwidth detection messages to be sent into target device 400 through at least one intermediate equipment 300.
Receiving module 130, the bandwidth detection is being received for receiving the intermediate equipment 300 and target device 400
The bandwidth value each returned after message.
Processing module 140, for minimum amount of bandwidth to be calculated according to the bandwidth value of return, and according to the minimum bandwidth
Value control message transmission speed.
The mode that minimum amount of bandwidth is calculated according to the bandwidth value of return for the processing module 140 includes：
Minimum amount of bandwidth is selected from least one bandwidth value of reception as initial minimum amount of bandwidth；
The initial minimum bandwidth is handled with pre-set bandwidths offset, obtains minimum amount of bandwidth.
Referring once again to Figure 10, the source device 100 can also include starting module 120.
Starting module 120, for starting a timer, so that the receiving module 130 connects before the timer expiry
The reply message narrowed to the bandwidth detection messages.
In summary, the present invention provides a kind of network traffics transmission method and source device.Methods described passes applied to network
Defeated system, the equipment that the system includes multiple communication connections.Source device is by bandwidth detection messages through at least one intermediate equipment
Target device is sent to, is set with obtaining the bandwidth value of intermediate equipment and the target between the source device and the target device
Standby bandwidth value.The intermediate equipment and target device return respective bandwidth value after the bandwidth detection messages are received
Back to the source device.Minimum amount of bandwidth is calculated according to the bandwidth value of return in source device, and according to the minimum amount of bandwidth
Control message transmission speed.Thus, minimum amount of bandwidth, Jin Ergen are worth to by inquiring about the bandwidth of intermediate equipment and target device
According to the flow of minimum amount of bandwidth control source device, reduce causes the general of packet loss re-transmission in network transmission because flow is excessive
Rate, so as to reduce network retransmission flow.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (10)
1. a kind of network traffics transmission method, it is characterised in that methods described includes：
Bandwidth detection messages are sent to target device by source device through at least one intermediate equipment；
The intermediate equipment and target device return to respective bandwidth value described after the bandwidth detection messages are received
Source device；
Minimum amount of bandwidth is calculated according to the bandwidth value of return in the source device, and controls message according to the minimum amount of bandwidth
Transmission speed.
2. according to the method for claim 1, it is characterised in that the source device is calculated most according to the bandwidth value of return
The step of small bandwidth value, includes：
The source device selects minimum amount of bandwidth as initial minimum amount of bandwidth from least one bandwidth value of reception；
The source device is handled with pre-set bandwidths offset the initial minimum bandwidth, obtains minimum amount of bandwidth.
3. according to the method for claim 1, it is characterised in that the intermediate equipment and target device are receiving the band
After wide probe messages, the step of respective bandwidth value is returned into the source device, includes：
The intermediate equipment and target device are after the bandwidth detection messages are received, to the bandwidth detection messages of reception
Parsed to obtain the type of the bandwidth detection messages, visited with the type according to the bandwidth detection messages and the bandwidth of storage
The type for observing and predicting text judges whether the bandwidth detection messages of reception are the bandwidth detection messages for needing to return bandwidth value；
When the bandwidth detection messages for judging to receive are to need to return the bandwidth detection messages of bandwidth value, the intermediate equipment
Respective outlet bandwidth value is searched, and the target device searches bandwidth value corresponding to its own processing capabilities, and each by bandwidth
Value is sent to the source device.
4. according to the method for claim 1, it is characterised in that in the source device by bandwidth detection messages through at least one
Intermediate equipment was sent to after the step of target device, and methods described also includes：
The source device starts a timer, and the source device receives before the timer expiry is directed to the bandwidth detection report
The reply message of text.
A kind of 5. network traffics transmission method, applied to source device, it is characterised in that methods described includes：
Bandwidth detection messages are sent to target device through at least one intermediate equipment；
Receive the bandwidth value that the intermediate equipment and/or target device each return after the bandwidth detection messages are received；
Minimum amount of bandwidth is calculated according to the bandwidth value of return, and message transmission speed is controlled according to the minimum amount of bandwidth.
6. according to the method for claim 5, it is characterised in that minimum bandwidth is calculated in the bandwidth value according to return
The step of value, includes：
Minimum amount of bandwidth is selected from least one bandwidth value of reception as initial minimum amount of bandwidth；
The initial minimum bandwidth is handled with pre-set bandwidths offset, obtains minimum amount of bandwidth.
7. according to the method for claim 5, it is characterised in that set bandwidth detection messages through at least one centre described
After preparation gives the step of target device, methods described also includes：
Start a timer, the reply message for the bandwidth detection messages is received before the timer expiry.
A 8. source device, it is characterised in that the source device includes：
Sending module, for bandwidth detection messages to be sent into target device through at least one intermediate equipment；
Receiving module, for receive the intermediate equipment and/or target device after the bandwidth detection messages are received each
The bandwidth value of return；
Processing module, for minimum amount of bandwidth to be calculated according to the bandwidth value of return, and controlled according to the minimum amount of bandwidth
Message transmission speed.
9. source device according to claim 8, it is characterised in that the processing module calculates according to the bandwidth value of return
Mode to minimum amount of bandwidth includes：
Minimum amount of bandwidth is selected from least one bandwidth value of reception as initial minimum amount of bandwidth；
The initial minimum bandwidth is handled with pre-set bandwidths offset, obtains minimum amount of bandwidth.
10. source device according to claim 8, it is characterised in that the source device also includes：
Starting module, for starting a timer, so that the receiving module is received before the timer expiry for described
The reply message of bandwidth detection messages.
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| WO2020042018A1 (en) * | 2018-08-29 | 2020-03-05 | 华为技术有限公司 | Method for detecting bandwidth and detection device |
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Application publication date: 20171222 |