CN109451081A - A kind of mobile edge calculations method based on domain name mapping scheduling - Google Patents
A kind of mobile edge calculations method based on domain name mapping scheduling Download PDFInfo
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- CN109451081A CN109451081A CN201910031540.9A CN201910031540A CN109451081A CN 109451081 A CN109451081 A CN 109451081A CN 201910031540 A CN201910031540 A CN 201910031540A CN 109451081 A CN109451081 A CN 109451081A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L61/00—Network arrangements, protocols or services for addressing or naming
- H04L61/45—Network directories; Name-to-address mapping
- H04L61/4505—Network directories; Name-to-address mapping using standardised directories; using standardised directory access protocols
- H04L61/4511—Network directories; Name-to-address mapping using standardised directories; using standardised directory access protocols using domain name system [DNS]
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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
- H04L67/50—Network services
- H04L67/60—Scheduling or organising the servicing of application requests, e.g. requests for application data transmissions using the analysis and optimisation of the required network resources
- H04L67/63—Routing a service request depending on the request content or context
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/08—Load balancing or load distribution
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The present invention relates to a kind of mobile edge calculations methods based on domain name mapping scheduling, this method realizes that CDN is dispatched to mobile fringe node by base station location where mobile subscriber nearby by increasing DNS Extended Protocol EDNS type, solves the problems, such as that mobile subscriber can not be dispatched to nearest node by tradition.The present invention allows mobile Local DNS to carry base station information where user when requesting dns resolution by increasing EDNS extension OPT record, GSLB can be dispatched to user the fringe node in mobile network according to base station location, it is truly realized mobile edge scheduling, the dispatch deal mode for retaining original GSLB simultaneously does not influence its service to the Local DNS for not supporting new OPT to record.
Description
Technical field
The present invention relates to CDN and mobile edge calculations field more particularly to a kind of mobile side based on domain name mapping scheduling
Edge calculation method.
Background technique
CDN global load balancing (GSLB) load is based on DNS technology the request scheduling of Internet user to most from user
Close edge caching nodes.
It please refers to shown in attached drawing 1, data center of traditional CDN fringe node in operator, Internet user to the side CDN
The transmission delay between data center where edge is inevitable, and another data center is all deployed in network core, bandwidth at
This is very high.Since current HD video, VR/AR, big data, Internet of Things, artificial intelligence rapidly develop, traditional CDN returns data
It traces back too high to central machine room cost, is difficult to meet storage, calculating and the interaction demand of increasingly increased mass data.Mobile edge
The abilities such as calculating, storage, processing can be provided nearby using mobile access network by calculating, and solve the mass data of mobile subscriber in nothing
Transmission between line side and data center.CDN fringe node sinks down into Mobile Access Network and provides better high definition to mobile subscriber
The acceleration service such as video, VR/AR, big data, Internet of Things, mobile fringe node can even be deployed to base station side or base station convergence
Place.But how mobile subscriber is dispatched to the mobile fringe node nearest from oneself is a problem in the urgent need to address.CDN
Global load balancing is the localdns that uses according to user to dispatch, and the localdns coverage area of mobile network is very big,
Usually a region shares a localdns, and the mobile fringe node in the region has very much, so passing through present technology
User can not be dispatched to the mobile fringe node nearest from user.
Summary of the invention
It is an object of the invention to overcome the deficiencies of existing technologies, a kind of mobile edge based on domain name mapping scheduling is provided
Calculation method solves the problems, such as that the mobile fringe node nearest from user user can not be dispatched to.
Realizing the technical solution of above-mentioned purpose is:
The present invention provides a kind of mobile edge calculations methods based on domain name mapping scheduling comprising following steps:
S1, increase new EDNS record protocol type: increasing DNS Extended Protocol EDNS type, that is, following existing DNS
Increase preset field on the basis of message format, to support default DNS request business；
S2, increase OPT dummy record: in the DNS request data packet that LocalDNS is sent to GSLB, in addition to normal DNS
Analysis request record is outer, also increases customized OPT dummy record, base station IDs and cell where the OPT dummy record carries user
ID；
S3, parsing and acquisition base station IDs and cell ID: when LocalDNS receives mobile subscriber's dns resolution request, pass through
Mobile AAA inquires user's IMSI number, then goes mobile location-based service GMLC inquiry user to be currently located base station letter according to IMSI number
Breath and cell information include base station IDs and cell ID in base station information and cell information；
S4, GSLB dissection process: when GSLB receive carry CID dummy record dns resolution request when, not further according to
The IP of LocalDNS returns to the cache node close from user, but is gone to inquire the shifting nearest from user according to base station IDs and cell ID
Dynamic edge caching nodes, and return to LocalDNS.
It should be noted that CDN is content distributing network；EDNS is extension DNS mechanism；DNS is Domain Name Service System；
OPT is pseudo- resource record；IMSI is international mobile subscriber identity；GMLC is Gateway Mobile Location Center；CID is calling number
Information identification and transmission identification code.
Further, in step s 2, further include the method for customized OPT dummy record, specifically include:
Increase a new OPT dummy record type: option-code: " CID ", numerical value is distributed by IANA；
New OPT dummy record RDATA partial-length is fixed, and the part RDATA consists of two parts, and a part is that cell is compiled
Number, another part is base station IDs.
Further, in step s3, when sending DNS query request to GSLB, CID dummy record, CID dummy record are carried
Include base station information and cell information.
Further, when being set in GSLB dissection process, if not supporting the parsing of new OPT dummy record, keep former
The analytic method of GSLB carries out discard processing to OPT dummy record.
The beneficial effects of the present invention are:
(1) it solves global load balancing and is dispatched to the fringe node nearest from user by LocalDNS, and cannot be shifting
Employ the problem of family is dispatched to the mobile fringe node nearest from oneself；
(2) the dispatch deal mode for remaining original GSLB does not influence its clothes to the LocalDNS for not supporting new OPT to record
Business；
(3) it does not need to be transformed mobile Intranet, it is only necessary to which LocalDNS, which increases, supports new OPT record, makes
With conveniently.
Detailed description of the invention
Fig. 1 is the global Load Balanced scheduling principle figure of the present invention；
Fig. 2 is that EDNS of the present invention extends OPT record CID dummy record structure chart；
Fig. 3 is LocalDNS request content comparison diagram of the present invention；
Fig. 4 is LocalDNS request content practical application comparison diagram of the present invention；
Fig. 5 is calculation method flow chart of the present invention.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings and specific examples.
The present invention provides a kind of mobile edge calculations method based on domain name mapping scheduling, and this method is expanded by increasing DNS
Exhibition agreement EDNS type realizes that CDN is dispatched to mobile fringe node by base station location where mobile subscriber nearby, solves tradition
The problem of mobile subscriber can not being dispatched to nearest node.Increasing EDNS extension OPT record allows mobile LocalDNS in request DNS
User can be dispatched to the fringe node in mobile network according to base station location by base station information where carrying user when parsing, GSLB,
It is truly realized mobile edge scheduling.Meanwhile retaining the dispatch deal mode of original GSLB, to not supporting new OPT record
LocalDNS does not influence its service.
Above-mentioned calculation method is further described below in conjunction with attached drawing.It please refers to shown in attached drawing 5, is based on domain name solution
Analysing the mobile edge calculations method dispatched includes:
S1, increase new EDNS record protocol type: increasing DNS Extended Protocol EDNS type, that is, following existing DNS
Increase preset field on the basis of message format, to support default DNS request business；
S2, increase OPT dummy record: in the DNS request data packet that LocalDNS is sent to GSLB, in addition to normal DNS
Analysis request record is outer, also increases customized OPT dummy record, base station IDs and cell where the OPT dummy record carries user
ID；
S3, parsing and acquisition base station IDs and cell ID: when LocalDNS receives mobile subscriber's dns resolution request, pass through
Mobile AAA inquires user's IMSI number, then goes mobile location-based service GMLC inquiry user to be currently located base station letter according to IMSI number
Breath and cell information include base station IDs and cell ID in base station information and cell information；
S4, GSLB dissection process: when GSLB receive carry CID dummy record dns resolution request when, not further according to
The IP of LocalDNS returns to the cache node close from user, but is gone to inquire the shifting nearest from user according to base station IDs and cell ID
Dynamic edge caching nodes, and return to LocalDNS.
Further, it please refers to shown in attached drawing 4, mobile subscriber sends DNS request to LocalDNS, and LocalDNS is received
When the DNS request of mobile subscriber, the IMSI number of user is inquired by mobile AAA, removes mobile location-based service further according to IMSI number
GMLC inquiry user is currently located base station information and cell information, when inquiry has the caching record of the mobile subscriber, then transfers
Caching record information returns to the nearest cache node of user according to the IP of LocalDNS.When not inquired caching record, then will
DNS request with base station IDs and cell ID is sent to GSLB and carries out dissection process, and obtains the base station IDs and cell ID of user, passes through
Base station IDs and cell ID go to inquire the mobile edge caching nodes nearest from user, and return to LocalDNS.
It please refers to shown in attached drawing 2, in step s 2, further includes the method for customized OPT dummy record, specifically include:
Increase a new OPT dummy record type: option-code: " CID ", numerical value is distributed by IANA；
New OPT dummy record RDATA partial-length is fixed, and the part RDATA consists of two parts, and a part is that cell is compiled
Number, another part is base station IDs.
It please refers to shown in attached drawing 3 and attached drawing 4, to increase OPT dummy record and not increasing the comparison of OPT dummy record.
Further, when sending DNS query request to GSLB, CID dummy record is carried, CID dummy record includes that base station is believed
Breath and cell information.
In the present invention, when being set in GSLB dissection process, if not supporting the parsing of new OPT dummy record, keep former
The analytic method of GSLB carries out discard processing to OPT dummy record.
In the prior art, LocalDNS is carried out allocations of edge cache node as user by GSLB, cannot accurately dispatch user
Fringe node in Mobile Access Network.The present invention, which increases EDNS extension OPT record, allows mobile LocalDNS in request dns resolution
When carry base station information where user, user can be dispatched to the fringe node in mobile network according to base station location by GSLB, really
Accomplish mobile edge scheduling, meanwhile, retain the dispatch deal mode of original GSLB, to the localDNS for not supporting new OPT record
Its service is not influenced.
The present invention has been described in detail with reference to the accompanying drawings, those skilled in the art can be according to upper
It states and bright many variations example is made to the present invention.Thus, certain details in embodiment should not constitute limitation of the invention, this
Invention will be using the range that the appended claims define as protection scope of the present invention.
Claims (4)
1. a kind of mobile edge calculations method based on domain name mapping scheduling, which comprises the following steps:
S1, increase new EDNS record protocol type: increasing DNS Extended Protocol EDNS type, that is, following existing DNS message
Increase preset field on the basis of format, to support default DNS request business；
S2, increase OPT dummy record: in the DNS request data packet that Loca lDNS is sent to GSLB, in addition to normal dns resolution
Request record is outer, also increases customized OPT dummy record, base station IDs and cell ID where the OPT dummy record carries user；
S3, parsing and acquisition base station IDs and cell ID: when Loca lDNS receives mobile subscriber's dns resolution request, pass through movement
AAA inquire user's IMSI number, then according to IMSI number go mobile location-based service GMLC inquiry user be currently located base station information and
It include base station IDs and cell ID in cell information, base station information and cell information；
S4, GSLB dissection process: when GSLB receives the dns resolution request for carrying CID dummy record, not further according to Loca
The IP of lDNS returns to the cache node close from user, but is gone to inquire the mobile side nearest from user according to base station IDs and cell ID
Edge cache node, and return to Loca lDNS.
2. a kind of mobile edge calculations method based on domain name mapping scheduling according to claim 1, which is characterized in that in step
In rapid S2, further includes the method for customized OPT dummy record, specifically includes:
Increase a new OPT dummy record type: opt ion-code: " CID ", numerical value is distributed by IANA；
New OPT dummy record RDATA partial-length is fixed, and the part RDATA consists of two parts, and a part is cell number, separately
A part is base station IDs.
3. a kind of mobile edge calculations method based on domain name mapping scheduling according to claim 1, which is characterized in that in step
In rapid S3, when sending DNS query request to GSLB, CID dummy record is carried, CID dummy record includes that base station information and cell are believed
Breath.
4. a kind of mobile edge calculations method based on domain name mapping scheduling according to claim 1, which is characterized in that setting
In GSLB dissection process, if not supporting the parsing of new OPT dummy record, the analytic method of former GSLB is kept, OPT puppet is remembered
Record carries out discard processing.
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Cited By (9)
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| CN110381131A (en) * | 2019-07-15 | 2019-10-25 | 北京奇艺世纪科技有限公司 | Implementation method, mobile terminal, server and the storage medium of MEC node identification |
| CN110830909A (en) * | 2019-11-12 | 2020-02-21 | 中国联合网络通信集团有限公司 | Content distribution control method and device |
| WO2020253626A1 (en) * | 2019-06-17 | 2020-12-24 | 中国移动通信有限公司研究院 | Method, device, equipment for determining edge application, and storage medium |
| CN112333108A (en) * | 2019-08-05 | 2021-02-05 | 南京中兴新软件有限责任公司 | Service scheduling method and device |
| WO2021056949A1 (en) * | 2019-09-24 | 2021-04-01 | 厦门网宿有限公司 | Edge application management method and system |
| WO2021104458A1 (en) * | 2019-11-28 | 2021-06-03 | 华为技术有限公司 | Domain name query method and related device |
| CN113067909A (en) * | 2020-01-02 | 2021-07-02 | 中国移动通信有限公司研究院 | Edge node addressing method, device, equipment and storage medium |
| US11057471B2 (en) | 2019-09-24 | 2021-07-06 | Xiamen Wangsu Co., Ltd. | Edge application management method and system |
| CN114430897A (en) * | 2019-08-29 | 2022-05-03 | Idac控股公司 | Method, device and system for edge resolution function |
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| JP2022533639A (en) * | 2019-06-17 | 2022-07-25 | 中国移動通信有限公司研究院 | Method, apparatus, apparatus and storage medium for determining edge applications |
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| WO2020253626A1 (en) * | 2019-06-17 | 2020-12-24 | 中国移动通信有限公司研究院 | Method, device, equipment for determining edge application, and storage medium |
| CN110381131A (en) * | 2019-07-15 | 2019-10-25 | 北京奇艺世纪科技有限公司 | Implementation method, mobile terminal, server and the storage medium of MEC node identification |
| CN112333108A (en) * | 2019-08-05 | 2021-02-05 | 南京中兴新软件有限责任公司 | Service scheduling method and device |
| CN114430897A (en) * | 2019-08-29 | 2022-05-03 | Idac控股公司 | Method, device and system for edge resolution function |
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| CN114430897B (en) * | 2019-08-29 | 2023-12-29 | 交互数字专利控股公司 | Method, device and system for edge parsing function |
| US11057471B2 (en) | 2019-09-24 | 2021-07-06 | Xiamen Wangsu Co., Ltd. | Edge application management method and system |
| WO2021056949A1 (en) * | 2019-09-24 | 2021-04-01 | 厦门网宿有限公司 | Edge application management method and system |
| CN110830909A (en) * | 2019-11-12 | 2020-02-21 | 中国联合网络通信集团有限公司 | Content distribution control method and device |
| WO2021104458A1 (en) * | 2019-11-28 | 2021-06-03 | 华为技术有限公司 | Domain name query method and related device |
| CN113067909A (en) * | 2020-01-02 | 2021-07-02 | 中国移动通信有限公司研究院 | Edge node addressing method, device, equipment and storage medium |
| CN113067909B (en) * | 2020-01-02 | 2023-04-07 | 中国移动通信有限公司研究院 | Edge node addressing method, device, equipment and storage medium |
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Application publication date: 20190308 |