CN117640766A - CDN scheduling method, CDN scheduling system and storage medium - Google Patents
CDN scheduling method, CDN scheduling system and storage medium Download PDFInfo
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Abstract
The application discloses a CDN scheduling method, a CDN scheduling system and a storage medium, wherein the method is applied to the CDN scheduling system and comprises the following steps: when an access request sent by a terminal is received, acquiring a basic scheduling strategy; acquiring link quality information of a plurality of transmission links of a bearing network; and determining a scheduling decision result according to the link quality information and the basic scheduling strategy, and sending the scheduling decision result to the terminal so that the terminal establishes access connection with a target content node according to the scheduling decision result. According to the scheme provided by the embodiment of the application, the link quality information of the transmission link in the bearing network is taken as the consideration factor for determining the scheduling decision result, so that the terminal establishes access connection with the target content node according to the scheduling decision result, and the access experience of the terminal to the content node can be effectively improved.
Description
Technical Field
The present disclosure relates to, but not limited to, the field of communications technologies, and in particular, to a CDN scheduling method, a CDN scheduling system, and a storage medium.
Background
The CDN (Content Delivery Network ) is an intelligent virtual network constructed on the basis of an operator bearing network, the basic principle is that various cache servers, namely content nodes, are widely adopted, the content nodes are distributed to areas or networks with relatively concentrated user access, CND senses comprehensive information such as the load condition of each content node, the distance between each content node and a terminal, the content delivery condition of each content node and the like by means of a CDN dispatching system, when the CDN dispatching system receives an access request of a terminal, the access request of the terminal is directed to the most suitable target content node, and the target content node directly responds to the user request, so that the terminal can acquire required content nearby, network congestion is reduced, and the response speed and hit rate of terminal access are improved. However, the present CDN scheduling system cannot sense the network quality condition between the terminal and the target content node, and when the network quality between the terminal and the target content node is poor, the access experience of the terminal to the target content node is affected.
Disclosure of Invention
The embodiment of the application provides a CDN scheduling method, a CDN scheduling system and a storage medium, which can effectively improve the access experience of a terminal to a content node.
In a first aspect, an embodiment of the present application provides a CDN scheduling method, which is applied to a CDN scheduling system, where the method includes:
when an access request sent by a terminal is received, acquiring a basic scheduling strategy;
acquiring link quality information of a plurality of transmission links of a bearing network;
and determining a scheduling decision result according to the link quality information and the basic scheduling strategy, and sending the scheduling decision result to the terminal so that the terminal establishes access connection with a target content node according to the scheduling decision result.
In a second aspect, an embodiment of the present application provides a CDN scheduling system, including: a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the CDN scheduling method as described in the first aspect when executing the computer program.
In a third aspect, embodiments of the present application further provide a computer readable storage medium storing computer executable instructions for performing the CDN scheduling method according to the first aspect.
The embodiment of the application provides a CDN scheduling method, a CDN scheduling system and a storage medium, wherein the CDN scheduling method is applied to the CDN scheduling system and comprises the following steps: when an access request sent by a terminal is received, acquiring a basic scheduling strategy; acquiring link quality information of a plurality of transmission links of a bearing network; and determining a scheduling decision result according to the link quality information and the basic scheduling strategy, and sending the scheduling decision result to the terminal so that the terminal establishes access connection with a target content node according to the scheduling decision result. According to the scheme provided by the embodiment of the application, the link quality information of the transmission link in the bearing network is taken as the consideration factor for determining the scheduling decision result, so that the terminal establishes access connection with the target content node according to the scheduling decision result, and the access experience of the terminal to the content node can be effectively improved.
Drawings
FIG. 1 is a flowchart illustrating steps of a CDN scheduling method according to one embodiment of the present application;
fig. 2 is a flowchart illustrating steps for obtaining link quality information according to another embodiment of the present application;
fig. 3 is a flowchart illustrating steps for obtaining link quality information according to another embodiment of the present application;
FIG. 4 is a flowchart illustrating steps for determining scheduling decision results provided by another embodiment of the present application;
FIG. 5 is a flowchart illustrating steps for determining scheduling decision results provided by another embodiment of the present application;
FIG. 6 is a flowchart illustrating steps for determining scheduling decision results provided by another embodiment of the present application;
FIG. 7 is a flowchart illustrating steps for determining scheduling decision results provided by another embodiment of the present application;
FIG. 8 is a schematic block diagram of a CDN scheduling method according to another embodiment of the present application;
FIG. 9 is a schematic diagram of a module for performing a task of sending quality measurements to a network device according to another embodiment of the present application;
fig. 10 is a schematic block diagram of performing determination of link quality information of a device according to another embodiment of the present application;
FIG. 11 is a flowchart illustrating steps of a CDN scheduling method according to another embodiment of the present application;
fig. 12 is a block diagram of a CDN scheduling system according to another embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.
It will be appreciated that although functional block diagrams are depicted in the device diagrams, logical sequences are shown in the flowchart, in some cases, the steps shown or described may be performed in a different order than the block diagrams in the device. The terms first, second and the like in the description, in the claims and in the above-described figures, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order.
The embodiment of the application provides a CDN scheduling method, a CDN scheduling system and a storage medium, wherein the CDN scheduling method is applied to the CDN scheduling system and comprises the following steps: when an access request sent by a terminal is received, acquiring a basic scheduling strategy; acquiring link quality information of a plurality of transmission links of a bearing network; and determining a scheduling decision result according to the link quality information and the basic scheduling strategy, and sending the scheduling decision result to the terminal so that the terminal establishes access connection with a target content node according to the scheduling decision result. According to the scheme provided by the embodiment of the application, the link quality information of the transmission link in the bearing network is taken as the consideration factor for determining the scheduling decision result, so that the terminal establishes access connection with the target content node according to the scheduling decision result, and the access experience of the terminal to the content node can be effectively improved.
Embodiments of the present application are further described below with reference to the accompanying drawings.
As shown in fig. 1, fig. 1 is a flowchart illustrating steps of a CDN scheduling method according to an embodiment of the present application, where the embodiment of the present application provides a CDN scheduling method, applied to a CDN scheduling system, where the CDN scheduling method includes, but is not limited to, the following steps:
step S110, when an access request sent by a terminal is received, a basic scheduling strategy is obtained;
it can be understood that when the terminal requests to acquire the content when accessing the website, the terminal needs to send the access request to the CDN scheduling system first, and the embodiment of the present application does not limit the specific content of the access request sent by the terminal, and may include information such as an IP address of the terminal, a uniform resource locator (Uniform Resource Locator, URL) of the website, and the like; because the CDN scheduling system is in communication connection with a plurality of content nodes, the basic scheduling strategy is used for acquiring the most suitable target content node from the plurality of content nodes aiming at the access request of the terminal, and therefore, when the CDN scheduling system receives the access request sent by the terminal, the basic scheduling strategy is acquired, and an effective data basis can be provided for determining the target content node.
Step S120, obtaining link quality information of a plurality of transmission links of a bearing network;
it can be understood that the CDN scheduling system in the prior art only selects a target content node for the terminal based on a basic scheduling policy, but the basic scheduling policy only considers network reachability from the CDN scheduling system to the content node, and does not consider network quality between the terminal and the content node; therefore, when the CDN scheduling system selects the target content node based on the basic scheduling policy, the CDN scheduling system cannot perceive the network quality condition between the terminal and the target content node, and when the network quality between the terminal and the target content node is poor, the access experience of the terminal to the target content node will be affected. The connection relationship between the CDN scheduling system, the terminal and the bearer network is not limited, and referring to fig. 8, the CDN scheduling system is in communication connection with the terminal, the CDN scheduling system and the terminal are respectively in communication connection with the bearer network, the bearer network includes a plurality of transmission links, each transmission link is respectively in communication connection with different content nodes, and the link quality of the transmission link between the terminal and the target content node can be determined by acquiring the link quality information of each transmission link in the bearer network, so that an effective data basis is provided for determining the scheduling decision result.
And step S130, determining a scheduling decision result according to the link quality information and the basic scheduling strategy, and transmitting the scheduling decision result to the terminal so that the terminal establishes access connection with the target content node according to the scheduling decision result.
It can be understood that the link quality information of the transmission link and the preset basic scheduling policy are used as reference factors for determining the scheduling decision result, namely, the scheduling decision result is determined according to the network accessibility of the CDN scheduling system to the target content node and the link quality of the transmission link between the terminal and the target content node, so that an effective data basis is provided for determining a more reliable target content node, and the terminal can establish reliable access connection with the target content node according to the scheduling decision result, and further ensure the access experience of the terminal to the target content node.
In addition, referring to fig. 2, in an embodiment, step S120 in the embodiment shown in fig. 1 further includes, but is not limited to, the following steps:
step S210, acquiring a preset detection period;
step S220, network quality measurement is carried out on a plurality of transmission links of the bearing network according to the detection period, and link quality information is obtained.
It can be understood that the detection period can be determined by a person skilled in the art according to the actual situation, and the CDN scheduling system can periodically detect whether the time interval between the current time and the time corresponding to the previous network quality detection operation performed on the multiple transmission links of the bearer network reaches the detection period, and when the time interval reaches the detection period, acquire the historical link quality information before the current time point, and based on the historical link quality information, perform network quality measurement on each transmission link in the bearer network again, and update the historical link quality information to obtain new link quality information.
In addition, referring to fig. 3, in an embodiment, the bearer network includes a plurality of network devices, each transmission link is composed of at least two network devices connected by communication, and step S120 in the embodiment shown in fig. 1 further includes, but is not limited to, the following steps:
step S310, sending quality measurement tasks to all network devices so that each network device can determine device link quality information according to preset rules, wherein the device link quality information is the link quality information between two network devices connected with each other;
step S320, obtaining link quality information of each transmission link according to the equipment link quality information, wherein the link quality information is obtained according to the equipment link quality information fed back by the network equipment belonging to the same transmission link.
The embodiment of the present application does not limit the specific manner in which the CDN scheduling system sends the quality measurement task to the network devices in the bearer network, and may be as shown in fig. 8 and fig. 9, where the CDN scheduling system 820 is communicatively connected to the network controller 830, and the CDN scheduling system 820 is communicatively connected to all the network devices in the bearer network 840 through the network controller 830, and each transmission link 880 in the bearer network 840 is formed by at least two network devices that are communicatively connected; the CDN scheduling system 820 sends a network quality request to the network controller 830, where the network quality request may include an IP address of a network device in the bearer network 840, and the specific content of the network quality request is not limited herein, and the CDN scheduling system 820 sends a quality measurement task to all network devices in the bearer network 840 through the network controller 830; the CDN scheduling system 820 may be built with a module having the same function as the network controller 830, and the CDN scheduling system 820 may directly control the module to send a quality measurement task to a network device in the bearer network 840 in a preset detection period.
It can be understood that after receiving the quality measurement task, each network device determines the device link quality information according to a preset rule, where the device link quality information is link quality information between two network devices connected to each other, and obtains the link quality information of each transmission link according to the device link quality information fed back by the network devices belonging to the same transmission link, so as to provide an effective data basis for determining the scheduling decision result.
In an embodiment of the present application, the link quality information may include a packet loss rate, a delay, or a jitter value, where the specific content of the link quality information is not limited.
In addition, in an embodiment, referring to fig. 8 to 10, the network device includes at least a first network device 850 and a second network device 860, the first network device 850 and the second network device 860 are communicatively connected, and the preset rule for determining the device link quality information may include the following steps: when the first network device 850 acquires the quality measurement task, determining first quality detection information with the second network device 860 through a bidirectional active measurement protocol (Two-Way Active Measurement Protocol, TWAMP); when the second network device 860 acquires the quality measurement task, determining second quality detection information with the first network device 850 through TWAMP; device link quality information between the first network device 850 and the second network device 860 is obtained from the first quality detection information and the second quality detection information.
It may be appreciated that, because the first network device 850 is communicatively connected to the second network device 860, the first network device 850 and the second network device 860 belong to the same transmission link 880, and the first network device 850 and the second network device 860 that belong to the same transmission link 880 respectively start the TWAMP to detect the quality detection information with the other party when acquiring the quality measurement task, the first network device 850 determines the first quality detection information with the second network device 860 through the TWAMP, the second network device 860 determines the second quality detection information with the first network device 850 through the TWAMP, and according to the first quality detection information and the second quality detection information, the link quality information of the transmission link 880 between the first network device 850 and the second network device 860 can be obtained, so as to implement the end-to-end connectivity, the delay and the packet loss detection of the transmission link; after obtaining the link quality information of the transmission link 880 between the first network device 850 and the second network device 860, the link quality information is fed back to the CDN scheduling system 820 through the network controller 830 as a network quality result, so that after receiving an access request of the terminal 810, the CDN scheduling system 820 determines a target transmission link from the multiple transmission links 880 according to a target scheduling policy combined with the network quality result and the base scheduling policy, that is, determines a target content node from content nodes (for example, including the content node a871, the content node B872, and the content node C873 in fig. 7) correspondingly connected to the multiple transmission links 880, and feeds back the target content node to the terminal 810 as a scheduling decision result, so as to implement content access of the terminal 810 to the target content node.
In addition, in an embodiment, the basic scheduling policy includes at least one basic scheduling element, and referring to fig. 4, step S130 in the embodiment shown in fig. 1 further includes, but is not limited to, the following steps:
step S410, determining the link quality information as a link scheduling element;
step S420, element weights are distributed on the basis of the scheduling elements and the link scheduling elements according to a preset weight distribution strategy;
step S430, determining the basic scheduling element and the link scheduling element with the allocated element weights as target scheduling elements of a target scheduling policy;
step S440, determining a scheduling decision result according to the target scheduling policy.
It can be understood that, a person skilled in the art can select a weight allocation policy according to actual situations, allocate different element weights for the basic scheduling element and the link scheduling element, and determine the basic scheduling element and the link scheduling element with the allocated element weights as target scheduling elements of the target scheduling policy; for example, when the element weight corresponding to the link scheduling element corresponding to the target scheduling policy is greater than the element weight corresponding to the base scheduling element, that is, when the target scheduling policy is used for determining the target content node, the link scheduling element is the target scheduling element with the greatest weight, and the link quality of the transmission link in the bearer network is preferentially considered, so that the scheduling decision result can be ensured, the network quality between the terminal and the target content node can be ensured, the access experience of the terminal can be ensured, and the weight can be uniformly distributed to each target scheduling element, so that the method is not limited.
It can be understood that the basic scheduling element and the link scheduling element which are distributed with element weights are determined to be target scheduling elements, so that a target scheduling strategy is formed, the scheduling decision result determined according to the target scheduling strategy can be effectively ensured to meet the link quality of a transmission link between a target content node and a terminal, and the access experience of the terminal to the target content node is improved.
In addition, the embodiment of the present application does not limit the specific content of the basic scheduling element included in the basic scheduling policy, and the basic scheduling element may be a geographical location index for a content node, a node service quality index for the content node, a node load index for the content node, or a node content distribution index for the content node.
In addition, referring to fig. 5, in an embodiment, step S440 in the embodiment shown in fig. 4 further includes, but is not limited to, the following steps:
step S510, determining a target transmission link from a plurality of transmission links according to a target scheduling policy;
step S520, a scheduling decision result is generated according to the target transmission link.
In addition, referring to fig. 6, in an embodiment, step S440 in the embodiment shown in fig. 4 further includes, but is not limited to, the following steps:
step S610, determining a target transmission link from a plurality of transmission links according to a target scheduling policy;
step S620, determining the content node in communication connection with the target transmission link as a target content node according to the target transmission link;
step S630, a scheduling decision result is generated according to the target content node.
It may be appreciated that embodiments of the present application do not limit the specific content of the scheduling decision result, which may include the target transmission link or the target content node; referring to fig. 8 to 10, since each transmission link in the bearer network is communicatively connected with a different content node, when an item of target transmission link is determined from a plurality of transmission links in the bearer network according to a target scheduling policy, the content node communicatively connected with the target transmission link is determined to be a target content node, and a scheduling decision result including the target transmission link or the target content node is sent to the terminal, so that the terminal can establish an access connection with the target content node according to the scheduling decision result.
In addition, referring to fig. 7, in an embodiment, step S130 in the embodiment shown in fig. 1 further includes, but is not limited to, the following steps:
step S710, determining an available transmission link from the transmission links according to a preset link quality threshold and the link quality information;
step S720, determining a target transmission link from the available transmission links according to the target scheduling policy, and generating the scheduling decision result according to the target transmission link.
It can be understood that, the available transmission links are determined from the multiple transmission links in the bearing network preferentially according to the preset link quality threshold and link quality information, where the link quality information may include information such as a packet loss rate, a jitter value, a response delay, and the like, and the link quality threshold may represent a minimum threshold value of the link quality information for guaranteeing reliable communication transmission of the transmission links, and the available transmission links greater than the link quality threshold are screened from the multiple transmission links in the bearing network, so that the network quality between the terminal and the target content node can be guaranteed by the scheduling decision result, and the access experience of the terminal is guaranteed.
The following describes, with a specific example, the steps of the CDN scheduling system determining a scheduling decision result according to the link quality information and the base scheduling policy: the basic scheduling policy may include scheduling elements such as a geographical location index for the content node, a node service quality index for the content node, a node load index for the content node, a node content distribution index for the content node, and the like, and all the scheduling elements and link quality information in the basic scheduling policy are combined into a target scheduling element of the target scheduling policy; when a terminal requests to acquire content by accessing a website, the terminal sends an access request to a CDN scheduling system, the access request comprises an IP address of the terminal and URL information of the website, under the condition that the CDN scheduling system receives the access request of the terminal, the CDN scheduling system firstly determines available transmission links from transmission links in a bearing network according to a preset link quality threshold and link quality information, then combines the access request and target scheduling elements of a target scheduling strategy to select a target transmission link from a plurality of available transmission links, each available transmission link is correspondingly connected with one content node, and the specific steps of selecting the target transmission link can comprise: the CDN dispatching system combines the IP address of the terminal and the geographic position index of the content node corresponding to each available transmission link to select the available transmission link corresponding to the content node which is closer to the terminal; the CDN scheduling system combines the URL information of the website and the node content distribution index of the content nodes to select an available transmission link corresponding to the content node storing the content required by the terminal; the CDN scheduling system judges the load condition of the content nodes corresponding to each available transmission link and selects the available transmission link corresponding to the content node with service capability; the scheduling elements and the corresponding element weights are comprehensively analyzed, a target transmission link is determined from available transmission links, then a scheduling decision result corresponding to the target transmission link is generated, and the scheduling decision result is sent to the terminal, so that the terminal can establish reliable access connection with the target content node according to the scheduling decision result, and the access experience of the terminal to the target content node is further ensured.
In addition, in order to describe the CDN scheduling method provided in the present application in more detail, a specific example is described below to describe the technical solution of the present application.
Example one: referring to fig. 11, fig. 11 is a flowchart illustrating steps of a CDN scheduling method according to another embodiment of the present application, where the CDN scheduling method is based on a block diagram for executing the CDN scheduling method shown in fig. 8, and the CDN scheduling method includes the following steps:
step S910, a network controller pre-deploys a network quality measurement task and issues the quality measurement task to all network devices in a bearing network, wherein the network devices at least comprise a first network device and a second network device, and the first network device and the second network device belong to the same transmission link;
step S920, periodic quality detection is performed between the first network device and the second network device through TWAMP, so as to obtain link quality information of a transmission link between the first network device and the second network device, and a network quality result is generated according to the link quality information;
step S930, feeding back the network quality result to the network controller;
step S940, the terminal initiates an access request to the CDN dispatching system;
step S950, the CDN dispatching system initiates a network quality request to the network controller, wherein the network quality request comprises a network element IP address, and the network element IP address is an IP address of a network device in the bearing network;
step S960, the network controller feeds back the network quality result to the CDN dispatching system;
step S970, the CDN scheduling system acquires link quality information from a network quality result, determines available transmission links from a plurality of transmission links in a bearing network according to the link quality information, determines a target transmission link from the available transmission links according to a target scheduling policy, determines a content node connected with the target transmission link as a target content node, generates a scheduling decision result according to the target content node, and feeds back the scheduling decision result to a terminal, wherein the target scheduling policy is a policy combined according to a basic scheduling policy and a link quality policy corresponding to the link quality information, and each target scheduling element in the target scheduling policy is allocated with different element weights;
step S980, the terminal initiates a content access request to the target content node according to the scheduling decision result;
in step S990, the target content node feeds back the terminal request result to the terminal.
It can be understood that by taking the link quality information of the transmission link in the bearer network as the consideration factor for determining the target content node, the access experience of the terminal to the content node can be effectively improved.
In addition, referring to fig. 11, fig. 11 is a block diagram of a CDN scheduling system provided in another embodiment of the present application, and one embodiment of the present application further provides a CDN scheduling system 1000, where the CDN scheduling system 1000 includes: memory 1010, processor 1020, and a computer program stored on memory 1010 and executable on processor 1020.
The processor 1020 and the memory 1010 may be connected by a bus or other means.
The non-transitory software programs and instructions required to implement the CDN scheduling method of the above-described embodiments are stored in the memory 1010, and when executed by the processor 1020, the CDN scheduling method applied to the CDN scheduling system 1000 in the above-described embodiments is performed, for example, the method steps S110 to S130 in fig. 1, the method steps S210 to S220 in fig. 2, the method steps S310 to S320 in fig. 3, the method steps S410 to S440 in fig. 4, the method steps S510 to S520 in fig. 5, the method steps S610 to S630 in fig. 6, and the method steps S710 to S720 in fig. 7 described above are performed.
The above described apparatus embodiments are merely illustrative, wherein the units illustrated as separate components may or may not be physically separate, i.e. may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
Furthermore, an embodiment of the present application further provides a computer readable storage medium storing computer executable instructions that are executed by a processor or controller, for example, by a processor 1020 in the foregoing CDN scheduling system embodiment, where the foregoing processor 1020 executes the CDN scheduling method applied to the CDN scheduling system in the foregoing embodiment, for example, executing the foregoing method steps S110 to S130 in fig. 1, the foregoing method steps S210 to S220 in fig. 2, the foregoing method steps S310 to S320 in fig. 3, the foregoing method steps S410 to S440 in fig. 4, the foregoing method steps S510 to S520 in fig. 5, the foregoing method steps S610 to S630 in fig. 6, and the foregoing method steps S710 to S720 in fig. 7. Those of ordinary skill in the art will appreciate that all or some of the steps, systems, and methods disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor 1020, or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). The term computer storage media includes both volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as known to those skilled in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can be accessed by a computer. Furthermore, as is well known to those of ordinary skill in the art, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media.
Claims (11)
1. A CDN scheduling method applied to a CDN scheduling system, the method comprising:
when an access request sent by a terminal is received, acquiring a basic scheduling strategy;
acquiring link quality information of a plurality of transmission links of a bearing network;
and determining a scheduling decision result according to the link quality information and the basic scheduling strategy, and sending the scheduling decision result to the terminal so that the terminal establishes access connection with a target content node according to the scheduling decision result.
2. The method of claim 1, wherein the obtaining link quality information for each of the transmission links comprises:
acquiring a preset detection period;
and carrying out network quality measurement on a plurality of transmission links of the bearing network according to the detection period to obtain the link quality information.
3. The method according to claim 1 or 2, wherein the bearer network comprises a plurality of network devices, each of the transmission links being comprised of at least two communicatively connected network devices, the acquiring link quality information of the plurality of transmission links of the bearer network comprising:
sending quality measurement tasks to all the network devices so that each network device can determine device link quality information according to preset rules, wherein the device link quality information is link quality information between two network devices which are connected with each other;
and obtaining the link quality information of each transmission link according to the equipment link quality information, wherein the link quality information is obtained according to the equipment link quality information fed back by the network equipment belonging to the same transmission link.
4. A method according to claim 3, wherein the network devices comprise at least a first network device and a second network device, the first network device and the second network device being communicatively connected, the preset rules comprising:
when the first network device acquires the quality measurement task, determining first quality detection information between the first network device and the second network device through TWAMP;
when the second network equipment acquires the quality measurement task, determining second quality detection information between the second network equipment and the first network equipment through TWAMP;
and obtaining the equipment link quality information between the first network equipment and the second network equipment according to the first quality detection information and the second quality detection information.
5. The method of claim 1, wherein the base scheduling policy includes at least one base scheduling element, and wherein determining a scheduling decision result based on the link quality information and the base scheduling policy comprises:
determining the link quality information as a link scheduling element;
distributing element weights for the basic scheduling elements and the link scheduling elements according to a preset weight distribution strategy;
determining the basic scheduling element and the link scheduling element which are distributed with the element weights as target scheduling elements of a target scheduling strategy;
and determining the scheduling decision result according to the target scheduling strategy.
6. The method of claim 5, wherein said determining the scheduling decision result according to the target scheduling policy comprises:
determining the target transmission link from a plurality of transmission links according to the target scheduling policy;
and generating the scheduling decision result according to the target transmission link.
7. The method of claim 5, wherein said determining the scheduling decision result according to the target scheduling policy comprises:
determining the target transmission link from a plurality of transmission links according to the target scheduling policy;
determining a content node in communication connection with the target transmission link as the target content node according to the target transmission link;
and generating the scheduling decision result according to the target content node.
8. The method of claim 5, wherein said determining a scheduling decision result based on said link quality information and said base scheduling policy comprises:
determining an available transmission link from the transmission links according to a preset link quality threshold and the link quality information;
and determining a target transmission link from the available transmission links according to the target scheduling policy, and generating the scheduling decision result according to the target transmission link.
9. The method of claim 5, wherein the base schedule element comprises at least one of:
the geographical position index of the content node;
the node service quality index of the content node;
node load index of the content node;
and the node content distribution index of the content node.
10. A CDN scheduling system, comprising: memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the CDN scheduling method of any one of claims 1 to 9 when executing the computer program.
11. A computer readable storage medium storing computer executable instructions for performing the CDN scheduling method of any one of claims 1 to 9.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210967363.7A CN117640766A (en) | 2022-08-12 | 2022-08-12 | CDN scheduling method, CDN scheduling system and storage medium |
| PCT/CN2023/087110 WO2024032011A1 (en) | 2022-08-12 | 2023-04-07 | Cdn scheduling method, cdn scheduling system, and storage medium |
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| CN202210967363.7A CN117640766A (en) | 2022-08-12 | 2022-08-12 | CDN scheduling method, CDN scheduling system and storage medium |
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| CN107645525A (en) * | 2016-07-21 | 2018-01-30 | 阿里巴巴集团控股有限公司 | Detection processing, dispatching method and related device, the node of content distributing network |
| CN109150576B (en) * | 2017-06-28 | 2021-01-05 | 华为技术有限公司 | Content data transmission method and equipment |
| CN114205782B (en) * | 2022-02-18 | 2022-06-07 | 中国电子技术标准化研究院 | Optimal time delay caching and routing method, device and system based on cloud edge cooperation |
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