CN113132251A - Service scheduling method, device and storage medium - Google Patents
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/10—Flow control; Congestion control
- H04L47/12—Avoiding congestion; Recovering from congestion
- H04L47/125—Avoiding congestion; Recovering from congestion by balancing the load, e.g. traffic engineering
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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
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
Abstract
The present disclosure provides a service scheduling method, device and storage medium, wherein the method comprises: GSLB equipment receives content request information sent by user equipment UE; wherein, the information carried by the content request message includes: MEC ID information; GSLB acquires edge CDN node information corresponding to MEC ID information and content request information based on the topological relation between the MEC ID and the edge CDN node; and the UE receives the edge CDN node information sent by the GSLB, and sends a CDN service request to a target edge CDN node corresponding to the edge CDN node information. According to the method, the device and the storage medium, the user terminal actively initiates the query request of the edge CDN node, and the local MEP can conveniently and quickly respond to the user request according to the user request, so that the edge CDN node can be accurately and quickly scheduled, and the use experience of a user can be improved.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method, an apparatus, and a storage medium for service scheduling.
Background
Mobile Edge Computing (MEC) is a new network architecture concept that can provide cloud Computing power and IT service environment at the Edge of a cellular network. By means of edge servers deployed in various places, a Content Delivery Network (CDN) enables a user to obtain required Content nearby through functional modules of load balancing, Content Delivery, scheduling and the like of a central platform, reduces Network congestion and Content provider server pressure, and improves user access response speed and hit rate. After a CDN node sinks to the network edge, how to identify the user location and schedule the traffic to the local edge CDN node is a problem that needs to be solved.
Disclosure of Invention
In view of the above, an object of the present invention is to provide a service scheduling method, device and storage medium.
According to an aspect of the present disclosure, a method for scheduling a service is provided, including: the global load balancing GSLB equipment receives a content request message sent by user equipment UE; wherein, the information carried by the content request message includes: MEC ID information; the GSLB acquires edge CDN node information corresponding to the MEC ID information and the content request message based on the topological relation between the MEC ID and the edge CDN node; wherein the edge CDN node information includes: an IP address; and the UE receives the edge CDN node information sent by the GSLB and sends a CDN service request to a target edge CDN node corresponding to the edge CDN node information.
Optionally, the edge UPF receives an MEC ID query request sent by the UE, forwards the MEC ID query request to a mobile edge computing MEC platform, and receives the MEC ID information returned by the MEC platform; and the edge UPF sends the MEC ID information to the UE.
Optionally, the sending the CDN service request to the target edge CDN node corresponding to the edge CDN node information includes: the UE sends the CDN service request to an edge UPF, and the edge UPF sends the CDN service request to an MEC platform; and the MEC platform sends the CDN service request to the target edge CDN node.
Optionally, the target edge CDN node receives the CDN service request, and obtains service data corresponding to the CDN service request; the target edge CDN node sends the service data to the MEC platform; and the edge UPF receives the service data sent by the MEC platform and pushes the service data to the UE.
Optionally, the pushing, to the UE, service data corresponding to the CDN service request includes: if the target edge CDN node does not store the service data, the target edge CDN node sends a content request corresponding to the service data to a central CDN node; and after receiving the service data sent by the central CDN node, the target edge CDN node sends the service data to the MEC platform.
Optionally, the content request message includes: an HTTP DNS request message.
According to another aspect of the present disclosure, there is provided a service scheduling system, including: global load balancing GSLB equipment and user equipment UE; the GSLB device is used for receiving the content request message sent by the UE; wherein, the information carried by the content request message includes: MEC ID information; acquiring edge CDN node information corresponding to the MEC ID information and the content request message based on a topological relation between the MEC ID and the edge CDN node; wherein the edge CDN node information includes: an IP address; and the UE is used for receiving the edge CDN node information sent by the GSLB and sending a CDN service request to a target edge CDN node corresponding to the edge CDN node information.
Optionally, the method further comprises: edge UPF and mobile edge computing MEC platform; the edge UPF is used for receiving an MEC ID query request sent by the UE, forwarding the MEC ID query request to a mobile edge computing MEC platform, and receiving the MEC ID information returned by the MEC platform; and the edge UPF sends the MEC ID information to the UE.
Optionally, the UE is configured to send the CDN service request to an edge UPF; the edge UPF is used for sending the CDN service request to the MEC platform; and the MEC platform is used for sending the CDN service request to the target edge CDN node.
Optionally, the target edge CDN node is configured to receive the CDN service request, obtain service data corresponding to the CDN service request, and send the service data to the MEC platform; and the edge UPF is used for receiving the service data sent by the MEC platform and pushing the service data to the UE.
Optionally, the target edge CDN node is configured to send, to a central CDN node, a content request corresponding to the service data if the service data is not stored; and after receiving the service data sent by the central CDN node, sending the service data to the MEC platform.
According to yet another aspect of the present disclosure, a computer-readable storage medium is provided, which stores computer instructions for execution by a processor to perform the method as described above.
According to the service scheduling method, the device and the storage medium, the user terminal actively initiates the query request of the edge CDN node, and the local MEP can conveniently and quickly respond to the user request according to the user request, so that the edge CDN node can be accurately and quickly scheduled; the change is small, DNS modification and matching are not needed, universality and reproducibility are achieved, and the use experience of a user is improved.
Drawings
In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and other drawings can be obtained by those skilled in the art without inventive exercise.
Fig. 1 is a flow chart illustrating an embodiment of a traffic scheduling method according to the present disclosure;
fig. 2 is a schematic flowchart of obtaining an MEC ID in an embodiment of a service scheduling method according to the present disclosure;
fig. 3 is a schematic flow chart diagram of another embodiment of a traffic scheduling method according to the present disclosure;
FIG. 4 is a block diagram illustration of one embodiment of a traffic scheduling system according to the present disclosure;
fig. 5 is a block diagram of another embodiment of a traffic scheduling system according to the present disclosure.
Detailed Description
The present disclosure now will be described more fully hereinafter with reference to the accompanying drawings, in which exemplary embodiments of the disclosure are shown. The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure, and it is obvious that the described embodiments are only a part of the embodiments of the present disclosure, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.
The terms "first", "second", and the like are used hereinafter only for descriptive distinction and not for other specific meanings.
The MEC technology can provide cloud computing capability and an IT service environment at the edge of a cellular network, and the basic idea is to migrate a cloud computing platform from the inside of a mobile core network to the edge of a mobile access network so as to realize the elastic utilization of computing and storage resources. The MEC technology enables the traditional wireless access network to have the conditions of service localization and short-distance deployment, so that the wireless access network has the transmission capability of low time delay and high bandwidth, and the requirements of a future mobile network on transmission bandwidth and time delay are effectively relieved, thereby effectively improving the service experience of a user and promoting the deep fusion of the network and the service. The MEC technology deeply fuses the traditional telecommunication cellular network and the Internet service, brings a brand new change to the operation mode of telecommunication operators, and establishes a novel industrial chain and a network ecosphere.
The core value of the CDN is to intelligently distribute digital content to nodes closer to the user, thereby improving overall distribution efficiency, reducing network delay, and saving bandwidth resources. The inherent edge node property of the CDN makes it have a proactive advantage in the edge computing market. A scheduling center GSLB (Global server Load Balance) device of the CDN generally identifies an area where a user is located according to a terminal IP address, and allocates a local CDN node to the user.
However, in the 5G network, since the network location of the session management function SMF responsible for IP address allocation is higher than the edge UPF, and the IP address allocated to the user does not have a regional characteristic, the GSLB cannot locate the edge location information of the user through the IP segment; moreover, because of the existence of LDNS (local DNS), GSLB cannot sense the IP of the end user, but only the LDNS address, so CDN traffic scheduling can only be accurate to save. The GSLB cannot determine the current address location of the user according to the IP address carried by the user, and thus cannot schedule the service to the edge CDN node that is close to the user, and cannot enable the user to enjoy better service application experience.
As can be seen from the above, after the CDN node sinks to the network edge, the GSLB cannot identify the region and dispatch to the edge server according to the user IP address. According to the service scheduling method, local service shunting is dynamically realized according to the user service request and the current geographic position of the user, the content request of the user is scheduled to the edge CDN node close to the user, the problem of edge CDN service scheduling in a 5G network is solved, and therefore user experience is improved.
Fig. 1 is a schematic flow chart of an embodiment of a service scheduling method according to the present disclosure, as shown in fig. 1:
Fig. 2 is a schematic flowchart of acquiring an MEC ID in an embodiment of a service scheduling method according to the present disclosure, as shown in fig. 2:
In step 202, the edge UPF sends the MEC ID information to the UE.
Various methods may be employed to send the CDN service request to the target edge CDN node corresponding to the edge CDN node information. For example, the UE sends the CDN service request to the edge UPF, the edge UPF sends the CDN service request to the MEC platform, and the MEC platform sends the CDN service request to the target edge CDN node. A target edge CDN node receives a CDN service request UE and acquires service data corresponding to the CDN service request; the target edge CDN node sends the service data to the MEC platform; and the edge UPF receives the service data sent by the MEC platform and pushes the service data to the UE.
In the service scheduling method in the above embodiment, the UE initiates an MEC ID query request, the edge UPF identifies the query request and forwards the query request to an MEC (MEC Platform), the MEC returns a corresponding MEC ID, the UE initiates a content request message carrying the MEC ID to the GSLB, and the GSLB determines a user position according to the MEC ID information and provides an IP address of an edge CDN node, thereby implementing accurate and rapid scheduling for the edge CDN.
There may be various methods for pushing service data corresponding to the CDN service request to the UE. For example, if the target edge CDN node does not store the service data, the target edge CDN node sends a content request corresponding to the service data to the central CDN node; and after receiving the service data sent by the central CDN node, the target edge CDN node sends the service data to the MEC platform.
Fig. 3 is a flowchart illustrating a service scheduling method according to another embodiment of the present disclosure, as shown in fig. 3:
step 301, when initiating a CDN service access request, a UE APP first initiates an MEC ID query request.
Step 302, the edge UPF identifies the information of the query MEC ID initiated by the UE, and forwards the information to the MEC platform.
Step 303, the MEC platform returns a group of MEC ID information of the area where the user is located to the UE according to the received user MEC ID query request.
Step 304, the UE APP initiates a content request to the CDN GSLB, where the request message carries MEC ID information.
Step 305, the GSLB maintains a topological relation between the MEC ID and the edge CDN node, and provides the UE with an IP address of the edge CDN node storing the content requested by the user according to the MEC ID information carried in the content UE request and the content of the user request.
Step 306, the UE APP initiates a CDN service request to the edge CDN node according to the received edge CDN node information. And sending the user request to an edge CDN node of the local MEC platform through a local shunting function of the edge UPF.
Step 307, the edge CDN node pushes the content to the UE.
Step 308, if the content requested by the user is not stored in the edge CDN node, the edge CDN node initiates a back-to-source request to the central CDN node.
Step 309, the central CDN node pushes the content to the edge CDN node according to the content request of the edge CDN node, and then the edge CDN node provides service for the user.
The service scheduling method in the embodiment abandons passive edge CDN node query modes of a network according to user request content, an IP address segment and the like in other schemes, a user terminal actively initiates an edge CDN node query request, and a local MEP can conveniently and quickly respond to the user request according to the user request, thereby realizing accurate and quick scheduling of the edge CDN node; the method is suitable for HTTP scheduling and DNS scheduling, and HTTP forwarding performance is not influenced; the method has the advantages that the network is slightly changed, DNS modification and coordination are not needed, only UE APP modification and coordination are needed, and the method has universality and reproducibility.
In one embodiment, as shown in fig. 4, the present disclosure provides a service scheduling system, including: a global load balancing GSLB device 402 and a user equipment UE 401. GSLB device 402 receives a content request message sent by UE 401, where information carried in the content request message includes MEC ID information and the like. GSLB device 402 obtains edge CDN node information corresponding to the MEC ID information and the content request message based on the topological relationship between the MEC ID and the edge CDN node, where the edge CDN node information includes an IP address and the like. UE 401 receives the edge CDN node information sent by GSLB 402, and sends a CDN service request to target edge CDN node 403 corresponding to the edge CDN node information.
In one embodiment, as shown in FIG. 5, GSLB 402 is responsible for directing requests of users throughout the network to the nearest node; the central CDN node 405 is mainly responsible for central content storage and push; the centrally deployed MEC service management platform 408 is responsible for management and control of MEC services (e.g., CDN services); the edge distributed MEP406 receives the management scheduling from the MEC service management platform 408, and executes and implements the corresponding policy; edge CDN node 403 instantiates as a third party APP on MEP (MEC platform) 406 and multiplexes the hardware, network, storage, etc. resources provided by MEP 406.
The edge UPF404 receives an MEC ID query request sent by the UE 401 through the RAN 407, forwards the MEC ID query request to the mobile edge computing MEC platform 406, and receives MEC ID information returned by the MEC platform 406, and the edge UPF404 sends the MEC ID information to the UE 401.
The target edge CDN node 403 receives the CDN service request, obtains service data corresponding to the CDN service request, and sends the service data to the MEC platform 406. The edge UPF404 receives the service data sent by the MEC platform 406, and pushes the service data to the UE 401.
If the target edge CDN node 403 does not store the service data, send a content request corresponding to the service data to the central CDN node 405; after receiving the service data sent by the central CDN node 405, the service data is sent to the MEC platform 406.
According to yet another aspect of the present disclosure, a computer-readable storage medium is provided, having stored thereon computer instructions for execution by a processor to perform the method as above.
According to the service scheduling method, the service scheduling device and the storage medium provided by the embodiment, the user terminal actively initiates the query request of the edge CDN node, and the local MEP can conveniently and quickly respond to the user request according to the user request, so that the edge CDN node can be accurately and quickly scheduled; the change is small, DNS modification and matching are not needed, universality and reproducibility are achieved, and the use experience of a user is improved.
The method and system of the present disclosure may be implemented in a number of ways. For example, the methods and systems of the present disclosure may be implemented by software, hardware, firmware, or any combination of software, hardware, and firmware. The above-described order for the steps of the method is for illustration only, and the steps of the method of the present disclosure are not limited to the order specifically described above unless specifically stated otherwise. Further, in some embodiments, the present disclosure may also be embodied as programs recorded in a recording medium, the programs including machine-readable instructions for implementing the methods according to the present disclosure. Thus, the present disclosure also covers a recording medium storing a program for executing the method according to the present disclosure.
The description of the present disclosure has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the disclosure in the form disclosed. Many modifications and variations will be apparent to practitioners skilled in this art. The embodiment was chosen and described in order to best explain the principles of the disclosure and the practical application, and to enable others of ordinary skill in the art to understand the disclosure for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (12)
1. A service scheduling method comprises the following steps:
the global load balancing GSLB equipment receives a content request message sent by user equipment UE; wherein, the information carried by the content request message includes: MEC ID information;
the GSLB acquires edge CDN node information corresponding to the MEC ID information and the content request message based on the topological relation between the MEC ID and the edge CDN node; wherein the edge CDN node information includes: an IP address;
and the UE receives the edge CDN node information sent by the GSLB and sends a CDN service request to a target edge CDN node corresponding to the edge CDN node information.
2. The method of claim 1, further comprising:
the edge UPF receives an MEC ID query request sent by the UE, forwards the MEC ID query request to a mobile edge computing MEC platform, and receives the MEC ID information returned by the MEC platform;
and the edge UPF sends the MEC ID information to the UE.
3. The method of claim 1 or 2, the sending a CDN traffic request to a target edge CDN node corresponding to the edge CDN node information comprising:
the UE sends the CDN service request to an edge UPF, and the edge UPF sends the CDN service request to an MEC platform;
and the MEC platform sends the CDN service request to the target edge CDN node.
4. The method of claim 3, further comprising:
the target edge CDN node receives the CDN service request and obtains service data corresponding to the CDN service request;
the target edge CDN node sends the service data to the MEC platform;
and the edge UPF receives the service data sent by the MEC platform and pushes the service data to the UE.
5. The method of claim 4, the pushing traffic data corresponding to the CDN traffic request to the UE comprising:
if the target edge CDN node does not store the service data, the target edge CDN node sends a content request corresponding to the service data to a central CDN node;
and after receiving the service data sent by the central CDN node, the target edge CDN node sends the service data to the MEC platform.
6. The method of claim 1, wherein,
the content request message includes: an HTTP DNS request message.
7. A traffic scheduling system comprising: global load balancing GSLB equipment and user equipment UE;
the GSLB device is used for receiving the content request message sent by the UE; wherein, the information carried by the content request message includes: MEC ID information; acquiring edge CDN node information corresponding to the MEC ID information and the content request message based on a topological relation between the MEC ID and the edge CDN node; wherein the edge CDN node information includes: an IP address;
and the UE is used for receiving the edge CDN node information sent by the GSLB and sending a CDN service request to a target edge CDN node corresponding to the edge CDN node information.
8. The system of claim 7, further comprising: edge UPF and mobile edge computing MEC platform;
the edge UPF is used for receiving an MEC ID query request sent by the UE, forwarding the MEC ID query request to a mobile edge computing MEC platform, and receiving the MEC ID information returned by the MEC platform;
and the edge UPF sends the MEC ID information to the UE.
9. The system of claim 7 or 8,
the UE is used for sending the CDN service request to an edge UPF;
the edge UPF is used for sending the CDN service request to the MEC platform;
and the MEC platform is used for sending the CDN service request to the target edge CDN node.
10. The system of claim 9, wherein,
the target edge CDN node is used for receiving the CDN service request, acquiring service data corresponding to the CDN service request, and sending the service data to the MEC platform;
and the edge UPF is used for receiving the service data sent by the MEC platform and pushing the service data to the UE.
11. The system of claim 10, wherein,
the target edge CDN node is used for sending a content request corresponding to the service data to a central CDN node if the service data is not stored; and after receiving the service data sent by the central CDN node, sending the service data to the MEC platform.
12. A computer-readable storage medium having stored thereon computer instructions for execution by a processor of the method of any one of claims 1 to 8.
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| CN115550372A (en) * | 2022-09-15 | 2022-12-30 | 中国联合网络通信集团有限公司 | Method, device, equipment and storage medium for determining service transmission strategy |
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Application publication date: 20210716 |