CN108429682A - A kind of optimization method and system of network transmission link - Google Patents
A kind of optimization method and system of network transmission link Download PDFInfo
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- CN108429682A CN108429682A CN201810163099.5A CN201810163099A CN108429682A CN 108429682 A CN108429682 A CN 108429682A CN 201810163099 A CN201810163099 A CN 201810163099A CN 108429682 A CN108429682 A CN 108429682A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/70—Routing based on monitoring results
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/12—Network monitoring probes
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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
- H04L47/28—Flow control; Congestion control in relation to timing considerations
- H04L47/283—Flow control; Congestion control in relation to timing considerations in response to processing delays, e.g. caused by jitter or round trip time [RTT]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
- H04L63/0428—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/14—Session management
- H04L67/141—Setup of application sessions
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- Computer Networks & Wireless Communication (AREA)
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- Computer Security & Cryptography (AREA)
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Abstract
The application provides a kind of optimization method and system of network transmission link, wherein the method includes：Fringe node downloads back source path information from the center of calculating, and described time source path information is calculated by the calculating center according to the detection information of each node feeding back；The fringe node receives the handshake request for the direction target domain name that client is sent, and is based on the handshake request and described time source path information, determines time source path for being used for transmission the handshake request；When the fringe node establishes connection failure with the adjacent node in described time source path, the fringe node reselects back source path according to the source path information of returning；The fringe node and the adjacent node returned in source path reselected are attempted to establish connection.Technical solution provided by the present application can improve the efficiency of transmission of data between the client of user and source station server.
Description
Technical field
This application involves network communication technology field, more particularly to the optimization method and system of a kind of network transmission link.
Background technology
Currently, in order to improve the efficiency of transmission of data between client and server, content distributing network can be passed through
(Content Delivery Network, CDN) connects client and source station server.In this way, when client is serviced to source station
When device initiates handshake request, which can be sent at fringe node nearby, and then passage path is planned to obtain again
Optimal time source path between fringe node and source station server can subsequently pass through the optimal source path that returns and carry out data
Transmission.
Currently, due to being limited by operator's access strategy, node bandwidth limitation, public network routing convergence and node itself
The weak net environment such as software and hardware resources failure influence, it is possible that node packet loss is serious, error code, time-out, RTT in CDN
The various problems such as (Round-Trip Time, round-trip delay) fluctuation, so that existing CDN has the following defects：If returned
Node in source path breaks down, and data can be made to attempt to transmit again in this time source path repeatedly, so as to cause user
Request it is slack-off.
Invention content
The application embodiment is designed to provide a kind of optimization method and system of network transmission link, can improve
The efficiency of transmission of data between the client and source station server of user.
To achieve the above object, on the one hand the application provides a kind of optimization method of network transmission link, the method
Including：
Fringe node downloads back source path information from the center of calculating, described time source path information by the calculating center according to
The detection information of each node feeding back is calculated；
The fringe node receives the handshake request for the direction target domain name that client is sent, and is based on the handshake request
And described time source path information, determine time source path for being used for transmission the handshake request；
When the fringe node establishes connection failure with the adjacent node in described time source path, the fringe node root
Source path is reselected back according to described time source path information；
The fringe node and the adjacent node returned in source path reselected are attempted to establish connection.
Further, the method further includes：
It is described when the fringe node is successfully established with the adjacent node returned in source path reselected to be connect
The handshake request and the Information encapsulation for returning source path reselected are request data package by fringe node, and by institute
Request data package is stated to be sent at the adjacent node.
Further, the method further includes：
The adjacent node extracted from the request data package described in the information for returning source path that reselects, and be based on
The information for returning source path reselected determines next destination node for needing to establish connection；
If the adjacent node establishes connection failure with the destination node, the adjacent node is anti-to the fringe node
Present failure information；
The fringe node reselects Hui Yuanlu again in response to the failure information, according to described time source path information
Diameter, and attempt to establish connection with the adjacent node returned in source path reselected again.
Further, the method further includes：
If the fringe node attempt to establish connection number reach predetermined number of times threshold value or attempt establish connection when
When length reaches specified duration threshold value, the fringe node characterizes the information of connection failure to the client feedback.
Further, after the fringe node and the server of the target domain name, which are established, to be connected, the method is also wrapped
It includes：
The target certificate that the fringe node is bound to client feedback and the aiming field famous prime minister, in the target certificate
Including specified public key, so that the client is encrypted the session key of this session using the specified public key；
The fringe node receives the encrypted session key that the client provides, and is solved to accelerating server to send
Close request, the decoding request include the encrypted session key so that the acceleration server according to it is described
The encrypted session key is decrypted in the private key of aiming field famous prime minister binding；
The fringe node receives and stores the session key after the decryption for accelerating server feedback, to complete this
Handshake procedure
Further, after receiving the handshake request of directions target domain name that client is sent, the fringe node and
Long connection is kept by the first process between the client, passes through second between the fringe node and the acceleration server
Process keeps long connection；Correspondingly, the method further includes：
The mapping relations between first process and second process are established, so that the client is when specified
When initiating to be directed toward the handshake request of the target domain name again in long, the handshake request is by first process by the side
Edge node receives, and is asked between the fringe node and the acceleration server by shaking hands described in second process processing
It asks.
To achieve the above object, the application also provides a kind of optimization system of network transmission link, the system comprises：
Source path information downloading unit is returned, for downloading back source path information, described time source path information from the center of calculating
It is calculated according to the detection information of each node feeding back by the calculating center；
Source path determination unit, the handshake request for receiving the direction target domain name that client is sent are returned, and is based on institute
Handshake request and described time source path information are stated, determines time source path for being used for transmission the handshake request；
Unit is reselected, for when fringe node establishes connection failure with the adjacent node in described time source path,
Source path is reselected back according to described time source path information；
Unit is reconnected, for attempting to establish connection with the adjacent node returned in source path reselected.
Further, the system also includes：
Data transmission unit, for when the fringe node with it is described reselect return source path in adjacent node at
It is request data package by the handshake request and the Information encapsulation for returning source path reselected when work(establishes connection,
And the request data package is sent at the adjacent node.
Further, the adjacent node is additionally operable to the Hui Yuanlu reselected described in extraction from the request data package
The information of diameter, and next destination node for needing to establish connection is determined based on the information for returning source path reselected；
Wherein, if the adjacent node establishes connection failure with the destination node, the adjacent node is additionally operable to institute
State fringe node feeding back unsuccessful information；
Correspondingly, the fringe node is additionally operable in response to the failure information, again according to described time source path information
Source path is reselected back, and attempts to establish connection with the adjacent node returned in source path reselected again.
Further, the system also includes：
Certificate feedback unit, the target certificate for being bound to client feedback and the aiming field famous prime minister, the target
Comprising specified public key in certificate, so that the client adds the session key of this session using the specified public key
It is close；
Decoding request transmission unit, the encrypted session key provided for receiving the client, and taken to acceleration
Business device sends decoding request, and the decoding request includes the encrypted session key, so that the acceleration server
The encrypted session key is decrypted according to the private key bound with the aiming field famous prime minister；
Session key storage unit, the session key after decryption for receiving and storing the acceleration server feedback,
To complete this handshake procedure.
Therefore technical solution provided by the present application, first fringe node can go out get Hui Yuan from calculating center
Routing information may include returning source path between fringe node and multiple and different source station servers in this time source path information
Information.In this way, after fringe node receives the handshake request that client is sent, can be directed toward according to the handshake request
Source station server selects optimal time source path.After optimal time source path is determined, fringe node can be attempted and this time
Adjacent node in source path establishes connection.If establishing connection failure, fringe node can directly reselect another
Item returns source path, rather than the foundation connection that makes repeated attempts in original time source path.In this way, can save in original Hui Yuanlu
It makes repeated attempts in diameter and establishes the connection spent time, to improve the efficiency that connection is established.In addition, as the Hui Yuan reselected
After establishing connection between each node in path, the source path that returns that can be reselected by this carries out data transmission.When
When occurring data transmission failure between node, it is found that the node of failure can notify fringe node, fringe node is so as to again
It is secondary to reselect a time source path for including identical time source node, and data biography is carried out according to the source path that returns reselected
It is defeated.Therefore technical solution provided by the present application, the foundation connection that makes repeated attempts can be saved in original time source path and consumed
The time taken, and the time for attempting to retransmit data in original time source path is saved, so as to improve the client of user
The efficiency of transmission of data between the server of source station.
Description of the drawings
Fig. 1 is the optimization method flow chart of network transmission link in the application；
Fig. 2 is the structural schematic diagram of the optimization system of network transmission link in the application.
Specific implementation mode
In order to make those skilled in the art better understand the technical solutions in the application, below in conjunction with the application reality
The attached drawing in mode is applied, the technical solution in the application embodiment is clearly and completely described, it is clear that described
Embodiment is only a part of embodiment of the application, rather than whole embodiments.Based on the embodiment party in the application
Formula, all other embodiment obtained by those of ordinary skill in the art without making creative efforts, is all answered
When the range for belonging to the application protection.
Referring to Fig. 1, the application embodiment provides a kind of optimization method of network transmission link, the method includes：
S1：Fringe node downloads back source path information from the center of calculating, and described time source path information is by the calculating center
It is calculated according to the detection information of each node feeding back；
S2：The fringe node receives the handshake request for the direction target domain name that client is sent, and is shaken hands based on described
Request and described time source path information determine time source path for being used for transmission the handshake request；
S3：When the fringe node establishes connection failure with the adjacent node in described time source path, the edge section
Point reselects back source path according to the source path information of returning；
S4：The fringe node and the adjacent node returned in source path reselected are attempted to establish connection.
In one embodiment, the method further includes：
It is described when the fringe node is successfully established with the adjacent node returned in source path reselected to be connect
The handshake request and the Information encapsulation for returning source path reselected are request data package by fringe node, and by institute
Request data package is stated to be sent at the adjacent node.
In one embodiment, the method further includes：
The adjacent node extracted from the request data package described in the information for returning source path that reselects, and be based on
The information for returning source path reselected determines next destination node for needing to establish connection；
If the adjacent node establishes connection failure with the destination node, the adjacent node is anti-to the fringe node
Present failure information；
The fringe node reselects Hui Yuanlu again in response to the failure information, according to described time source path information
Diameter, and attempt to establish connection with the adjacent node returned in source path reselected again.
In one embodiment, the method further includes：
If the fringe node attempt to establish connection number reach predetermined number of times threshold value or attempt establish connection when
When length reaches specified duration threshold value, the fringe node characterizes the information of connection failure to the client feedback.
In one embodiment, described after the fringe node and the server of the target domain name, which are established, to be connected
Method further includes：
The target certificate that the fringe node is bound to client feedback and the aiming field famous prime minister, in the target certificate
Including specified public key, so that the client is encrypted the session key of this session using the specified public key；
The fringe node receives the encrypted session key that the client provides, and is solved to accelerating server to send
Close request, the decoding request include the encrypted session key so that the acceleration server according to it is described
The encrypted session key is decrypted in the private key of aiming field famous prime minister binding；
The fringe node receives and stores the session key after the decryption for accelerating server feedback, to complete this
Handshake procedure
In one embodiment, after the handshake request for receiving the direction target domain name that client is sent, the side
Long connection is kept by the first process between edge node and the client, between the fringe node and the acceleration server
Long connection is kept by the second process；Correspondingly, the method further includes：
The mapping relations between first process and second process are established, so that the client is when specified
When initiating to be directed toward the handshake request of the target domain name again in long, the handshake request is by first process by the side
Edge node receives, and is asked between the fringe node and the acceleration server by shaking hands described in second process processing
It asks.
Referring to Fig. 2, the application also provides a kind of optimization system of network transmission link, the system comprises：
Source path information downloading unit 100 is returned, for downloading back source path information, described time source path letter from the center of calculating
Breath is calculated by the calculating center according to the detection information of each node feeding back；
Source path determination unit 200, the handshake request for receiving the direction target domain name that client is sent are returned, and is based on
The handshake request and described time source path information determine time source path for being used for transmission the handshake request；
Unit 300 is reselected, for establishing connection failure when fringe node and the adjacent node in described time source path
When, source path is reselected back according to described time source path information；
Unit 400 is reconnected, for attempting to establish connection with the adjacent node returned in source path reselected.
In one embodiment, the system also includes：
Data transmission unit, for when the fringe node with it is described reselect return source path in adjacent node at
It is request data package by the handshake request and the Information encapsulation for returning source path reselected when work(establishes connection,
And the request data package is sent at the adjacent node.
In one embodiment, the adjacent node is additionally operable to reselect described in extraction from the request data package
Return source path information, and based on it is described reselect return source path information determine it is next need establish connection mesh
Mark node；
Wherein, if the adjacent node establishes connection failure with the destination node, the adjacent node is additionally operable to institute
State fringe node feeding back unsuccessful information；
Correspondingly, the fringe node is additionally operable in response to the failure information, again according to described time source path information
Source path is reselected back, and attempts to establish connection with the adjacent node returned in source path reselected again.
In one embodiment, the system also includes：
Certificate feedback unit, the target certificate for being bound to client feedback and the aiming field famous prime minister, the target
Comprising specified public key in certificate, so that the client adds the session key of this session using the specified public key
It is close；
Decoding request transmission unit, the encrypted session key provided for receiving the client, and taken to acceleration
Business device sends decoding request, and the decoding request includes the encrypted session key, so that the acceleration server
The encrypted session key is decrypted according to the private key bound with the aiming field famous prime minister；
Session key storage unit, the session key after decryption for receiving and storing the acceleration server feedback,
To complete this handshake procedure.
Therefore technical solution provided by the present application, first fringe node can go out get Hui Yuan from calculating center
Routing information may include returning source path between fringe node and multiple and different source station servers in this time source path information
Information.In this way, after fringe node receives the handshake request that client is sent, can be directed toward according to the handshake request
Source station server selects optimal time source path.After optimal time source path is determined, fringe node can be attempted and this time
Adjacent node in source path establishes connection.If establishing connection failure, fringe node can directly reselect another
Item returns source path, rather than the foundation connection that makes repeated attempts in original time source path.In this way, can save in original Hui Yuanlu
It makes repeated attempts in diameter and establishes the connection spent time, to improve the efficiency that connection is established.In addition, as the Hui Yuan reselected
After establishing connection between each node in path, the source path that returns that can be reselected by this carries out data transmission.When
When occurring data transmission failure between node, it is found that the node of failure can notify fringe node, fringe node is so as to again
It is secondary to reselect a time source path for including identical time source node, and data biography is carried out according to the source path that returns reselected
It is defeated.Therefore technical solution provided by the present application, the foundation connection that makes repeated attempts can be saved in original time source path and consumed
The time taken, and the time for attempting to retransmit data in original time source path is saved, so as to improve the client of user
The efficiency of transmission of data between the server of source station.
Those skilled in the art are supplied to the purpose described to the description of the various embodiments of the application above.It is not
It is intended to exhaustive or is not intended to and limits the invention to single disclosed embodiment.As described above, the application's is various
It substitutes and variation will be apparent for above-mentioned technology one of ordinary skill in the art.Therefore, although specifically begging for
Some alternative embodiments are discussed, but other embodiment will be apparent or those skilled in the art are opposite
It is easy to obtain.The application is intended to be included in all replacements, modification and the variation of the present invention that this has been crossed by discussion, and falls
Other embodiment in the spirit and scope of above-mentioned application.
Claims (10)
1. a kind of optimization method of network transmission link, which is characterized in that the method includes：
Fringe node downloads back source path information from the center of calculating, and described time source path information is by the calculating center according to each
The detection information of node feeding back is calculated；
The fringe node receives the handshake request for the directions target domain name that client is sent, and be based on the handshake request and
Described time source path information determines time source path for being used for transmission the handshake request；
When the fringe node establishes connection failure with the adjacent node in described time source path, the fringe node is according to institute
It states back source path information and reselects back source path；
The fringe node and the adjacent node returned in source path reselected are attempted to establish connection.
2. according to the method described in claim 1, it is characterized in that, the method further includes：
When the fringe node is successfully established with the adjacent node returned in source path reselected to be connect, the edge
The handshake request and the Information encapsulation for returning source path reselected are request data package by node, and are asked by described in
Data packet is asked to be sent at the adjacent node.
3. according to the method described in claim 2, it is characterized in that, the method further includes：
The adjacent node extracted from the request data package described in the information for returning source path that reselects, and based on described
The information for returning source path reselected determines next destination node for needing to establish connection；
If the adjacent node establishes connection failure with the destination node, the adjacent node is fed back to the fringe node to be lost
Lose information；
The fringe node reselects back source path again in response to the failure information, according to described time source path information,
And it attempts to establish connection with the adjacent node returned in source path reselected again.
4. according to the method described in claim 3, it is characterized in that, the method further includes：
If the fringe node attempt to establish connection number reach predetermined number of times threshold value or attempt establish connection when be up to
When to specified duration threshold value, the fringe node characterizes the information of connection failure to the client feedback.
5. according to the method described in claim 1, it is characterized in that, working as the server of the fringe node and the target domain name
After establishing connection, the method further includes：
The target certificate that the fringe node is bound to client feedback and the aiming field famous prime minister includes in the target certificate
Specified public key, so that the client is encrypted the session key of this session using the specified public key；
The fringe node receives the encrypted session key that the client provides, and is asked to accelerating server to send decryption
Ask, the decoding request includes the encrypted session key so that the acceleration server according to the target
The encrypted session key is decrypted in the private key that domain name is mutually bound；
The fringe node receives and stores the session key after the decryption for accelerating server feedback, to complete holding for this
Hand process.
6. according to the method described in claim 5, it is characterized in that, receiving shaking hands for the direction target domain name sent of client
After request, long connection, the fringe node and institute are kept by the first process between the fringe node and the client
It states and long connection is kept by the second process between accelerating server；Correspondingly, the method further includes：
The mapping relations between first process and second process are established, so that the client is in specified duration
When initiating to be directed toward the handshake request of the target domain name again, the handshake request is by first process by the edge section
Point receives, and handles the handshake request by second process between the fringe node and the acceleration server.
7. a kind of optimization system of network transmission link, which is characterized in that the system comprises：
Source path information downloading unit is returned, for downloading back source path information from the center of calculating, described time source path information is by institute
Calculating center is stated to be calculated according to the detection information of each node feeding back；
Source path determination unit, the handshake request for receiving the direction target domain name that client is sent are returned, and is held based on described
Hand is asked and described time source path information, determines time source path for being used for transmission the handshake request；
Unit is reselected, for when fringe node establishes connection failure with the adjacent node in described time source path, according to
Described time source path information reselects back source path；
Unit is reconnected, for attempting to establish connection with the adjacent node returned in source path reselected.
8. system according to claim 7, which is characterized in that the system also includes：
Data transmission unit, for successfully being built when the fringe node and the adjacent node returned in source path reselected
It is request data package by the handshake request and the Information encapsulation for returning source path reselected, and will when vertical connection
The request data package is sent at the adjacent node.
9. system according to claim 8, which is characterized in that the adjacent node is additionally operable to from the request data package
Reselected described in extraction return source path information, and based on it is described reselect return source path information determine it is next
It needs to establish the destination node connected；
Wherein, if the adjacent node establishes connection failure with the destination node, the adjacent node is additionally operable to the side
Edge node feeding back failure information；
Correspondingly, the fringe node is additionally operable in response to the failure information, again again according to described time source path information
Source path is selected back, and attempts to establish connection with the adjacent node returned in source path reselected again.
10. system according to claim 7, which is characterized in that the system also includes：
Certificate feedback unit, the target certificate for being bound to client feedback and the aiming field famous prime minister, the target certificate
In comprising specified public key so that the client is encrypted the session key of this session using the specified public key；
Decoding request transmission unit, the encrypted session key provided for receiving the client, and to accelerating server
Send decoding request, the decoding request includes the encrypted session key so that the acceleration server according to
The encrypted session key is decrypted with the private key of aiming field famous prime minister binding；
Session key storage unit, the session key after decryption for receiving and storing the acceleration server feedback, with complete
At this handshake procedure.
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| CN109257335A (en) * | 2018-08-22 | 2019-01-22 | 网宿科技股份有限公司 | It keeps back the method for source link, return source method, relevant apparatus and storage medium |
| CN110875941A (en) * | 2018-09-03 | 2020-03-10 | 阿里巴巴集团控股有限公司 | Source station access flow adjusting method and device, electronic device and storage device |
| CN110958048A (en) * | 2019-11-19 | 2020-04-03 | 北京前沿探索深空科技有限公司 | Low earth orbit satellite network fault processing method, system, controller and medium |
| CN113542058A (en) * | 2021-06-25 | 2021-10-22 | 网宿科技股份有限公司 | Data source returning method, server and storage medium |
| CN113810293A (en) * | 2020-06-15 | 2021-12-17 | 北京金山云网络技术有限公司 | Network preferred agent method, device, electronic equipment, server and storage medium |
| CN114448871A (en) * | 2021-12-23 | 2022-05-06 | 天翼云科技有限公司 | Data feedback routing method and system for CDN |
| CN114500340A (en) * | 2021-12-23 | 2022-05-13 | 天翼云科技有限公司 | Intelligent scheduling distributed path calculation method and system |
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