CN104519080A - Link establishing method and system for distributed CDN (Content Delivery Network) system - Google Patents
Link establishing method and system for distributed CDN (Content Delivery Network) system Download PDFInfo
- Publication number
- CN104519080A CN104519080A CN201310449373.2A CN201310449373A CN104519080A CN 104519080 A CN104519080 A CN 104519080A CN 201310449373 A CN201310449373 A CN 201310449373A CN 104519080 A CN104519080 A CN 104519080A
- Authority
- CN
- China
- Prior art keywords
- node
- course
- key
- data message
- link
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/12—Discovery or management of network topologies
-
- 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
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/02—Standardisation; Integration
- H04L41/0246—Exchanging or transporting network management information using the Internet; Embedding network management web servers in network elements; Web-services-based protocols
- H04L41/0253—Exchanging or transporting network management information using the Internet; Embedding network management web servers in network elements; Web-services-based protocols using browsers or web-pages for accessing management information
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/08—Configuration management of networks or network elements
- H04L41/0803—Configuration setting
- H04L41/0806—Configuration setting for initial configuration or provisioning, e.g. plug-and-play
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/08—Configuration management of networks or network elements
- H04L41/0803—Configuration setting
- H04L41/0813—Configuration setting characterised by the conditions triggering a change of settings
- H04L41/082—Configuration setting characterised by the conditions triggering a change of settings the condition being updates or upgrades of network functionality
Abstract
The invention discloses a link establishing method and system for a distributed CDN (Content Delivery Network) system. The method comprises the following steps that: a management layer acquires the data information of a control layer and acquires the data information of each node of an ability layer; the management layer allocates a belonging control layer to each node of the ability layer according to the acquired data information; and the control layer establishes a communication link for each node of the ability layer based on the data information. Through the link establishing method and system, the problem of incapability of automatically switching a link in the distributed CDN system in a relevant technology is solved, and flexible management of the node topology of the ability layer through control layer software and simplification of ability layer configuration are realized under CDN large-scale software architecture. When a signaling network topology changes, automatic switching of a link between the control layer software and the nodes of the ability layer can be realized, and influences on a service function are lowered to the maximum extent. Meanwhile, rapid expansion and large-scale expansion of the CDN system can be met.
Description
Technical field
The present invention relates to multimedia service field, particularly relate to a kind of link constructing method and system of Distributed C DN system.
Background technology
Along with the extensive use of the develop rapidly of mechanics of communication, the continuous lifting of the network bandwidth and global cloud computing technique, Internet Users increases rapidly, IPTV(IPTV) technology obtains Rapid Popularization, starts successively adopted on a large scale by Ge great operator of the world and disposed.Especially the enforcement of " integration of three networks " policy instantly, content distributing network (ContentDeliveryNetwork, referred to as the CDN) industry that more China is in the ascendant provides the opportunity to develop of blowout formula.
The growth of CDN traffic carrying capacity and industrial chain thereof, higher requirement is proposed to equipment at different levels such as CDN management level, key-course and capability layers, target is by the future development of progressively, networking flexibility sane towards vast capacity, safety, and its large-scale network-estabilishing technology urgently breaks through.In Distributed C DN system under CDN large scope software framework, realize to extensive node administration flexibly with efficient, had higher more reliable requirement to the management of CDN and control ability.In order to the robustness of elevator system, the management level of CDN and key-course are also often all set to two-shipper (two center) pattern or active-standby mode, and when this switches CDN networking, the link setup flexibility of network element has had higher requirement.
To merge the networking of CDN system, the current CDN network element mode that mainly to have employed the end of to upwards sets up the communication link between network element, the foundation of signaling network and media network topology is all solidification, do not possess controlled ability, flexibility is poor, therefore Media Oriented Systems MLSS(management level in framework in the past, also referred to as CDNManager) two Center Scheme in, when revising the topology of MLSS signaling network, need to perform a large amount of handover operations on each node of capability layer, Engineering operation is complicated and difficulty is large, have a big risk, be difficult to the automatic switchover realizing link.Under CDN large scope software framework, the meeting that this drawback manifests is more outstanding.
For the problem that Distributed C DN system link in correlation technique cannot automatically switch, at present effective solution is not yet proposed.
Summary of the invention
For the problem that Distributed C DN system link in correlation technique cannot automatically switch, the invention provides a kind of link constructing method and system of Distributed C DN system, in order to solve the problems of the technologies described above.
According to an aspect of the present invention, the invention provides a kind of link constructing method of Distributed C DN system, wherein, the method comprises: management level obtain the data message of key-course, and the data message of each node of acquisition capability layer; Above-mentioned management level, according to the data message obtained, are the key-course of each peer distribution of capability layer one ownership; Above-mentioned key-course, based on above-mentioned data message, sets up communication link to each node of capability layer.
Preferably, the data message that described management level obtain described key-course comprises: described management level, by WEB module controls layer management interface, add the data message of described key-course; Wherein, the data message of described key-course comprises key-course mark, module No., office number.
Preferably, the data message that described management level obtain described each node of capability layer comprises: described management level are by WEB Module nodes management interface, add the data message of each node of described capability layer, the data message of described node comprises node identification, node signaling IP, signaling port, module No., office number and link setup pattern information.
Preferably, described key-course, based on described data message, is set up communication link to each node of capability layer and is comprised: the data message of the synchronous described management level of described key-course, filters out the data message of the node belonging to described key-course from described data message; The data message of the described node filtered out is kept in node link list; Described key-course, according to described node link list, sets up communication link to each node of capability layer.
Preferably, described method also comprises: described key-course monitors described node link list in real time; When monitoring the described node link list of discovery and changing, described key-course is newly-built or close the link changed.
According to a further aspect in the invention, present invention also offers a kind of link setup system, wherein, this system comprises management level, capability layer and key-course, wherein: above-mentioned management level comprise: data obtaining module, for obtaining the data message of above-mentioned key-course, and obtain the data message of each node of aforementioned capabilities layer; Distribution module, for according to the data message obtained, is the key-course of each peer distribution of aforementioned capabilities layer one ownership; Above-mentioned key-course comprises: link setup module, for according to above-mentioned data message, sets up communication link to each node of above-mentioned capability layer.
Preferably, described data obtaining module comprises: the first acquiring unit, for by WEB module controls layer management interface, adds the data message of described key-course; Wherein, the data message of described key-course comprises key-course mark, module No., office number.
Preferably, described data obtaining module comprises: second acquisition unit, for passing through WEB Module nodes management interface, add the data message of each node of described capability layer, the data message of described node comprises node identification, node signaling IP, signaling port, module No., office number and link setup pattern information.
Preferably, described link setup module comprises: build table unit, for the data message of synchronous described management level, filters out the data message of the node belonging to described key-course from described data message; The data message of the described node filtered out is kept in node link list; Link setup unit, for according to described node link list, sets up communication link to each node of capability layer.
Preferably, described key-course also comprises: monitoring module, for monitoring described node link list in real time; Processing module, during for finding that described node link list changes at described monitoring module, the link that newly-built or closedown changes.
By the present invention, management level obtain the data message of key-course, and the data message of each node of acquisition capability layer; Above-mentioned management level, according to the data message obtained, are the key-course of each peer distribution of capability layer one ownership; Above-mentioned key-course is based on above-mentioned data message, communication link is set up to each node of capability layer, solve the problem that in correlation technique, Distributed C DN system link cannot automatically switch, thus achieve under CDN large scope software framework, key-course software is to the flexible management of capability layer node topology, and the simplification of capability layer configuration.When signaling network topology changes, the automatic switchover of key-course software and capability layer inter-node link can be realized, will drop to minimum on the impact of business function.The quick dilatation of CDN system can also be met simultaneously, and extensive dilatation.
Above-mentioned explanation is only the general introduction of technical solution of the present invention, in order to technological means of the present invention can be better understood, and can be implemented according to the content of specification, and can become apparent, below especially exemplified by the specific embodiment of the present invention to allow above and other objects of the present invention, feature and advantage.
Accompanying drawing explanation
Fig. 1 is the flow chart of the link constructing method of Distributed C DN system according to the embodiment of the present invention;
Fig. 2 is the structured flowchart of the link setup system according to the embodiment of the present invention;
Fig. 3 is the system architecture diagram realized according to the reverse link setup of the CDN of the embodiment of the present invention;
Fig. 4 is the method flow schematic diagram according to the reverse link setup of the CDN of the embodiment of the present invention.
Embodiment
In order to solve the problem that in correlation technique, Distributed C DN system link cannot automatically switch, the invention provides a kind of link constructing method and system of Distributed C DN system, below in conjunction with accompanying drawing and embodiment, the present invention being further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, do not limit the present invention.
Technical scheme of the present invention relates to IPTV(network video), multimedia service field in the communication network such as video monitoring, mobile flow medium, particularly relate to and merge in CDN operation system under large-scale network-estabilishing pattern, the networking control method in Distributed C DN system.
Present embodiments provide a kind of link constructing method of Distributed C DN system, Fig. 1 is the flow chart of the link constructing method of Distributed C DN system according to the embodiment of the present invention, and as shown in Figure 1, the method comprises the following steps (step S102-step S106):
Step S102, management level obtain the data message of key-course, and the data message of each node of acquisition capability layer;
Step S104, management level, according to the data message obtained, are the key-course of each peer distribution of capability layer one ownership;
Step S106, key-course, based on above-mentioned data message, sets up communication link to each node of capability layer.
By said method, management level obtain the data message of key-course, and the data message of each node of acquisition capability layer; Above-mentioned management level, according to the data message obtained, are the key-course of each peer distribution of capability layer one ownership; Above-mentioned key-course is based on above-mentioned data message, communication link is set up to each node of capability layer, solve the problem that in correlation technique, Distributed C DN system link cannot automatically switch, thus achieve under CDN large scope software framework, key-course software is to the flexible management of capability layer node topology, and the simplification of capability layer configuration.When signaling network topology changes, the automatic switchover of key-course software and capability layer inter-node link can be realized, will drop to minimum on the impact of business function.The quick dilatation of CDN system can also be met simultaneously, and extensive dilatation.
Preferably, above-mentioned key-course, based on above-mentioned data message, is set up communication link to each node of capability layer and is comprised: the data message of the synchronous above-mentioned management level of above-mentioned key-course, filters out the data message of the node belonging to above-mentioned key-course from above-mentioned data message; The data message of the above-mentioned node filtered out is kept in node link list; Above-mentioned key-course, according to above-mentioned node link list, sets up communication link to each node of capability layer.
Preferably, said method also comprises: key-course monitors above-mentioned node link list in real time; When monitoring the above-mentioned node link list of discovery and changing, key-course is newly-built or close the link changed.
The technical problem that technical scheme of the present invention will solve is to provide the networking control method in a kind of Distributed C DN system, for realizing under CDN large scope software framework, key-course software is to the flexible management of capability layer node topology, and the simplification of capability layer configuration.When signaling network topology changes, the automatic switchover of key-course software and capability layer inter-node link can be realized, will drop to minimum on the impact of business function (as: function such as content issue, channel creation, programme recording); The quick dilatation of CDN system can also be met simultaneously, and extensive dilatation.
By the embodiment of the present invention, the networking control method in Distributed C DN system, compared with the traditional control method of CDN networking, control method of the present invention can be called reverse link constructing method.System comprising modules based on this function comprises CDNWEB module, management level data module, management level database, key-course data module, key-course database, key-course communication module.Below modules is described in detail.
CDNWEB module: as the entrance of CDN management level data configuration, for CDN system resource configuration and issue, as the key-course etc. of the communication information of: each node of capability layer, key-course net element information, node-home.Relate generally to the increase of configuration, amendment or deletion.Simultaneously also for the showing interface of business datum.
Management level data module: cooperated with key-course data module data syn-chronization function, is synchronized to each key-course in the whole network by the system resource configuration information full dose of being added by management level.Meanwhile, when the change of management level data configuration, real time data between management level software and key-course software, is kept to upgrade.
Management level database: preserve all source configuration data that management level issue, gathers the capability layer joint behavior data that key-course software reports, and service processing result.The page data being mainly used in CDNWEB module is shown, and the data syn-chronization between management level software and key-course software.Also can be used for the instruction of management level software buffer memory upper-layer service, timing is read by management level and is distributed to key-course software.
Key-course webmaster module: for the increase of key-course configurations, deletion, amendment.Meanwhile, can also be key-course each network element configuration management level communication informations, as data such as management level IP, module No., offices number.
Key-course data module: cooperate with management level data module and realize data syn-chronization function, basic data management level issued is kept in key-course database, for the normal operation of business function.
Key-course database: for providing access interface to all business process of key-course, the configurations issued when preserving or upgrade management level and key-course data syn-chronization and business datum.The service order that cache management layer issues, is generated to the service order of each node of capability layer, is read be distributed to each node of capability layer by the timing of key-course business process, and the result of receiving ability node layer.Meanwhile, when key-course data occur to change, key-course database can also notify the module of specifying, and keeps the real-time update of data.
Key-course communication module: manage for the communication link between key-course and each layer.Key-course communication module reads the communication link setup information of management level and capability layer after starting automatically from key-course database, initiatively sets up communication link with management level and capability layer.Meanwhile, communication module also can monitor the communication link setup information in key-course database in real time, once link setup information changes, communication module can be newly-built or close the link of change immediately, ensures the correct and unobstructed of link.
Capability layer node: with key-course software link setup, for receiving the service order (as: content issue, channel creation, programme recording etc.) that key-course issues, storing media content.Reporting service instruction process result, and joint behavior data; And provide CDN media services etc. to user.
The implementation method of reverse link setup when introducing a kind of Distributed C DN large-scale network-estabilishing below by specific embodiment, simultaneously also can compatible link setup pattern in the past, mainly comprises the following steps:
In key-course webmaster, be that each key-course software adds management level communication information, mainly comprise management level IP, module No., office number etc., data write each key-course database;
Key-course communication module timing inquiry key-course database, reads management level communication link setup information, initiatively sets up signaling link to management level software; Meanwhile, communication module also can management level communication link setup information in real-time monitoring data storehouse, once information there occurs change, communication module can be newly-built or close the link of change immediately, ensures the correct and unobstructed of link.
Management level by WEB Module nodes management interface, add each node data of capability layer, mainly comprise the information such as node identification, node signaling IP, signaling port, module No., office number and link setup pattern (forward link setup or oppositely link setup); Here, forward link setup represents capability layer initiatively to key-course link setup, (namely traditional CDN link setup mode), and reverse link setup represents key-course initiatively to capability layer link setup.Capability layer can be made up of one or more node.
Based on above-mentioned introduction, preferably, in the present embodiment, the data message that management level obtain each node of aforementioned capabilities layer comprises: above-mentioned management level are by WEB Module nodes management interface, add the data message of each node of aforementioned capabilities layer, the data message of above-mentioned node comprises node identification, node signaling IP, signaling port, module No., office number and link setup pattern information.
Management level by WEB module controls layer management interface, add the information of each key-course of CDN, mainly comprise the information such as key-course mark, module No., office number.Management level are unique, and key-course can have multiple.
Based on above-mentioned introduction, preferably, in the present embodiment, the data message that management level obtain above-mentioned key-course comprises: above-mentioned management level, by WEB module controls layer management interface, add the data message of above-mentioned key-course; Wherein, the data message of above-mentioned key-course comprises key-course mark, module No., office number.
Management level, by WEB Module nodes control planning interface, are the key-course of each peer distribution of capability layer one ownership.A node-home is in a key-course, and different nodes can belong to identical key-course, and a key-course can control hundreds of capability layer nodes.
CDNWEB module data has added, trigger data is synchronous, by the data synchronization mechanism between management level data module and key-course data module, system resource configuration information (capability layer nodal information, key-course information, capability layer node-home information) full dose is synchronized to each network element of key-course by management level software.When resource allocation information change, between management level software and key-course software, keep real-time data synchronization.
Key-course software reads the data message be synchronized to, filter out the node data in the administration of this key-course, according to link setup pattern, will the node data of reverse link setup be needed to be kept in the node link list of this key-course, the node data of forward link setup be kept in this list.When the change of signaling network topology, when trigger data is synchronous again, the node link list real-time update of each key-course.
Key-course communication module timing scan database, reads node link list, initiatively sets up communication link to each node software of capability layer.Meanwhile, communication module also can node link list information in real-time monitoring data storehouse, once list information there occurs change, communication module can be newly-built or close the link of change immediately, ensures the correct and unobstructed of active link.
For the node of forward link setup, key-course Waiting Capacity node layer initiatively initiates link setup request.
In the reverse link setup system of CDN adopting the method disclosed in the present embodiment to build, by management level software configuration data, and generate node link list with the synchronization mechanism of key-course software, method of operation is simply efficient, improves Product's Ease of Use; The software of key-course initiatively oppositely sets up signaling link to the software of each node of capability layer according to the list of capability layer node link, achieves the flexible management of topology; Breach the conventional link setup pattern (forward link setup) in CDN system, compatible forward link setup and reverse link setup two kinds of modes, more flexible, reliable, practical from capability layer link constructing method simultaneously.The more important thing is, when the topology of amendment signaling network, achieve the automatic switchover of key-course and capability layer link, Engineering operation is simplified, the impact of business is dropped to minimum or without impact; Achieve the modularization of management level and key-course, the significant increase ability of CDN large-scale network-estabilishing and quick dilatation.
Corresponding to the link constructing method that above-described embodiment is introduced, present embodiments provide a kind of link setup system, this system is in order to realize above-described embodiment.Fig. 2 is the structured flowchart of the link setup system according to the embodiment of the present invention, and as shown in Figure 2, this system comprises management level, capability layer and key-course, describes in detail below to this structure.
Management level comprise: data obtaining module 10, for obtaining the data message of above-mentioned key-course, and obtain the data message of each node of aforementioned capabilities layer; Distribution module 12, for according to the data message obtained, is the key-course of each peer distribution of aforementioned capabilities layer one ownership;
Key-course comprises: link setup module 20, for according to above-mentioned data message, sets up communication link to each node of above-mentioned capability layer.
By above-described embodiment, management level obtain the data message of key-course, and the data message of each node of acquisition capability layer; Above-mentioned management level, according to the data message obtained, are the key-course of each peer distribution of capability layer one ownership; Above-mentioned key-course is based on above-mentioned data message, communication link is set up to each node of capability layer, solve the problem that in correlation technique, Distributed C DN system link cannot automatically switch, thus achieve under CDN large scope software framework, key-course software is to the flexible management of capability layer node topology, and the simplification of capability layer configuration.When signaling network topology changes, the automatic switchover of key-course software and capability layer inter-node link can be realized, will drop to minimum on the impact of business function.The quick dilatation of CDN system can also be met simultaneously, and extensive dilatation.
Preferably, above-mentioned data obtaining module 10 comprises: the first acquiring unit, for by WEB module controls layer management interface, adds the data message of above-mentioned key-course; Wherein, the data message of above-mentioned key-course comprises key-course mark, module No., office number.
Preferably, above-mentioned data obtaining module 10 comprises: second acquisition unit, for passing through WEB Module nodes management interface, add the data message of each node of aforementioned capabilities layer, the data message of above-mentioned node comprises node identification, node signaling IP, signaling port, module No., office number and link setup pattern information.
Preferably, above-mentioned link setup module 20 comprises: build table unit, for the data message of synchronous above-mentioned management level, filters out the data message of the node belonging to above-mentioned key-course from above-mentioned data message; The data message of the above-mentioned node filtered out is kept in node link list; Link setup unit, for according to above-mentioned node link list, sets up communication link to each node of capability layer.
Preferably, above-mentioned key-course also comprises: monitoring module, for monitoring above-mentioned node link list in real time; Processing module, during for finding that above-mentioned node link list changes at above-mentioned monitoring module, the link that newly-built or closedown changes.
Be described in detail below in conjunction with the technical scheme of drawings and Examples to the embodiment of the present invention.
Fig. 3 is the system architecture diagram realized according to the reverse link setup of the CDN of the embodiment of the present invention, as shown in Figure 3, present embodiments provide a kind of system based on the reverse link setup of CDN, comprise a CDN management level server and (in figure, be labeled as CDNM, CDN Manager), one or more CDN key-course server (is labeled as CDNC in figure, CDN Control), one or more CDN capability layer node device (i.e. CDN node, is labeled as NODE in figure).Wherein CDN management level server comprises again CDNWEB module (CDNWEB), management level data module (Manager Layer Data is called for short ML-D), management level database (Manager Layer Database is called for short ML-DB); CDN key-course server comprises again key-course webmaster (NetNumen N31, be called for short N31), key-course data module (Control LayerData, be called for short CL-D), key-course database (Control Layer Database, be called for short CL-DB), key-course communication module (Control Layer Communication, be called for short CL-COM).
Fig. 4 is the method flow schematic diagram according to the reverse link setup of the CDN of the embodiment of the present invention, and as shown in Figure 4, this flow process comprises the following steps (step S401-step S414):
Step S401: add key-course CDNC network element in N31 webmaster, by the communication information that webmaster is each CDNC network element interpolation management level CDNM, mainly comprise the signaling IP of CDNM, module No., office number and port etc., data are write direct in the database CL-DB of each CDNC network element;
Step S402: the communication module CL-COM timing of each CDNC network element goes to scan the table in CL-DB, reads the communication link setup information of CDNM.
Step S403: each CDNC network element of key-course initiatively sets up communication link to management level CDNM; If the CDNM communication information in CL-DB table there occurs change, CL-COM also can close or the link of more new change immediately, ensures the correct and unobstructed of active link.
Step S404: the communication data (one or more) being added each NODE of capability layer by management level CDNWEB, and the data (one or more) of key-course each CDNC network element.Simultaneously can also set up attaching relation for each NODE and CDNC, and business dependence between NODE etc.Data are write direct in management level ML-DB, also can upgrade the version information of respective table simultaneously, there occurs change for the data marked in this table.
Step S405: management level data have been added, CDNWEB trigger data is synchronous, sends data Notification of Changes, carry the latest version information of each tables of data in Notification of Changes to management level data module ML-D.
Step S406: after management level data module ML-D receives data Notification of Changes, by the data module CL-D of information broadcast to all CDNC network elements.
Step S407: the data module CL-D of each CDNC network element inquires about the data version information in CLDB, and makes comparisons with the version number of notice, the synchronous flow process of turn-on data.
Step S408: the table version information that each CDNC network element obtains according to CL-D, whether decision-making sends data synchronization request to ML-D, and synchronously which is shown.
Step S409:ML-D receives the data synchronization request from each CDNC network element, to the CL-D module return data sync response of each CDNC, carries data syn-chronization FTP information etc.
After step S410:CL-D receives the data sync response that CDNM returns, the FTP address of specifying from CDNM obtains latest data, and data is write in the CL-DB database of CDNC.
Step S411: the communication module CL-COM timing of each CDNC network element goes to scan the node communication information table in CL-DB, obtains the node communication information needing reverse link setup.
Step S412: the CL-COM of each CDNC network element initiatively sends link setup request to all capability layer NODE belonging to this CDNC, sets up the communication link of CDNC and NODE.
The CL-DB of step S413:CDNC network element has data Notification of Changes function.Realize the real-time monitoring of CL-COM to node link list information by CL-DB, when node communication information occurs to change, the CL-DB of each CDNC network element notifies corresponding communication module CL-COM.
After step S414:CL-COM receives data Notification of Changes, inquire about the node communication information table in this key-course CL-DB, obtain and belong to this CDNC and the up-to-date communication information needing the node of reverse link setup.According to up-to-date list information, the link that newly-built or closedown changes, ensures the correct and unimpeded of active link.
The technical advantage of the employing embodiment of the present invention is: the software of key-course, according to the list of capability layer node link, initiatively oppositely sets up signaling link to the software of each node of capability layer, achieves the flexible management of topology; When the topology of amendment signaling network, only need revise node-home key-course information in management level just can be newly-built or close the link changed, and eliminates and perform a large amount of handover operations on each node of capability layer, Engineering operation is simplified; The quick access of batch node when also facilitating the extensive dilatation of capability layer.
In the present embodiment, management level CDNM and key-course CDNC, as a module MLSS(Media Location Srevice System in framework in the past), uniquely dispose at the whole network.MLSS directly manages and controls multiple node.Be split as the assembly that management level CDNM is different from key-course CDNC two kinds in the present embodiment, independently disposed, the significant increase dilatation ability of CDN system.This improvement and distortion can increase practicality of the present invention, but also belong to the scope of protection of the invention.
Although be example object, disclose the preferred embodiments of the present invention, it is also possible for those skilled in the art will recognize various improvement, increase and replacement, and therefore, scope of the present invention should be not limited to above-described embodiment.
Claims (10)
1. a link constructing method for Distributed C DN system, is characterized in that, described method comprises:
Management level obtain the data message of key-course, and the data message of each node of acquisition capability layer;
Described management level, according to the data message obtained, are the key-course of each peer distribution of capability layer one ownership;
Described key-course, based on described data message, sets up communication link to each node of capability layer.
2. the method for claim 1, is characterized in that, the data message that described management level obtain described key-course comprises:
Described management level, by WEB module controls layer management interface, add the data message of described key-course; Wherein, the data message of described key-course comprises key-course mark, module No., office number.
3. the method for claim 1, is characterized in that, the data message that described management level obtain described each node of capability layer comprises:
Described management level by WEB Module nodes management interface, add the data message of each node of described capability layer, and the data message of described node comprises node identification, node signaling IP, signaling port, module No., office number and link setup pattern information.
4. the method for claim 1, is characterized in that, described key-course, based on described data message, is set up communication link to each node of capability layer and comprised:
The data message of the synchronous described management level of described key-course, filters out the data message of the node belonging to described key-course from described data message; The data message of the described node filtered out is kept in node link list;
Described key-course, according to described node link list, sets up communication link to each node of capability layer.
5. method as claimed in claim 4, it is characterized in that, described method also comprises:
Described key-course monitors described node link list in real time;
When monitoring the described node link list of discovery and changing, described key-course is newly-built or close the link changed.
6. a link setup system, is characterized in that, described system comprises management level, capability layer and key-course, wherein:
Described management level comprise: data obtaining module, for obtaining the data message of described key-course, and obtain the data message of described each node of capability layer;
Distribution module, for according to the data message obtained, is the key-course of each peer distribution of described capability layer one ownership;
Described key-course comprises: link setup module, for according to described data message, sets up communication link to each node of described capability layer.
7. system as claimed in claim 6, it is characterized in that, described data obtaining module comprises:
First acquiring unit, for by WEB module controls layer management interface, adds the data message of described key-course; Wherein, the data message of described key-course comprises key-course mark, module No., office number.
8. system as claimed in claim 6, it is characterized in that, described data obtaining module comprises:
Second acquisition unit, for passing through WEB Module nodes management interface, add the data message of each node of described capability layer, the data message of described node comprises node identification, node signaling IP, signaling port, module No., office number and link setup pattern information.
9. system as claimed in claim 6, it is characterized in that, described link setup module comprises:
Build table unit, for the data message of synchronous described management level, from described data message, filter out the data message of the node belonging to described key-course; The data message of the described node filtered out is kept in node link list;
Link setup unit, for according to described node link list, sets up communication link to each node of capability layer.
10. system as claimed in claim 9, it is characterized in that, described key-course also comprises:
Monitoring module, for monitoring described node link list in real time;
Processing module, during for finding that described node link list changes at described monitoring module, the link that newly-built or closedown changes.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310449373.2A CN104519080B (en) | 2013-09-27 | 2013-09-27 | A kind of link constructing method and system of Distributed C DN system |
| PCT/CN2014/080588 WO2015043257A1 (en) | 2013-09-27 | 2014-06-24 | Link setup method, system, and computer storage medium in distributed cdn system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310449373.2A CN104519080B (en) | 2013-09-27 | 2013-09-27 | A kind of link constructing method and system of Distributed C DN system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104519080A true CN104519080A (en) | 2015-04-15 |
| CN104519080B CN104519080B (en) | 2019-01-08 |
Family
ID=52741982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310449373.2A Active CN104519080B (en) | 2013-09-27 | 2013-09-27 | A kind of link constructing method and system of Distributed C DN system |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN104519080B (en) |
| WO (1) | WO2015043257A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019001514A1 (en) * | 2017-06-29 | 2019-01-03 | 贵州白山云科技股份有限公司 | Method and device for generating cdn coverage scheme, and computer-readable storage medium and computer device thereof |
| CN110677464A (en) * | 2019-09-09 | 2020-01-10 | 深圳市网心科技有限公司 | Edge node device, content distribution system, method, computer device, and medium |
| CN113259769A (en) * | 2021-04-07 | 2021-08-13 | 苏州华兴源创科技股份有限公司 | Video source switching method and device, electronic equipment and computer readable storage medium |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040172466A1 (en) * | 2003-02-25 | 2004-09-02 | Douglas Christopher Paul | Method and apparatus for monitoring a network |
| CN101030904A (en) * | 2006-03-02 | 2007-09-05 | 中兴通讯股份有限公司 | Virtual LAN exchange system and system apparatus signal interaction |
| CN101262488A (en) * | 2007-03-09 | 2008-09-10 | 中兴通讯股份有限公司 | A content distribution network system and method |
| US20080240114A1 (en) * | 2005-11-22 | 2008-10-02 | Huawei Technologies Co., Ltd. | Data Frame Forwarding Method By Data Relay Entity And Data Relay Entity |
| CN101640688A (en) * | 2009-08-20 | 2010-02-03 | 中兴通讯股份有限公司 | Content delivery network (CDN)-based switching method for main node controller and spare controller and CDN |
| CN103118055A (en) * | 2012-10-10 | 2013-05-22 | 中兴通讯股份有限公司 | Method and device for multi-media access |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101026631B (en) * | 2006-12-28 | 2014-07-02 | 中兴通讯股份有限公司 | CDN structure based IPTV system media payment system |
| CN102427412A (en) * | 2011-12-31 | 2012-04-25 | 网宿科技股份有限公司 | Zero-delay disaster recovery switching method and system of active standby source based on content distribution network |
| CN102984279B (en) * | 2012-12-17 | 2016-03-30 | 复旦大学 | CDN initiatively selects high-quality node to carry out the method for optimize the content distribution services in advance |
-
2013
- 2013-09-27 CN CN201310449373.2A patent/CN104519080B/en active Active
-
2014
- 2014-06-24 WO PCT/CN2014/080588 patent/WO2015043257A1/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040172466A1 (en) * | 2003-02-25 | 2004-09-02 | Douglas Christopher Paul | Method and apparatus for monitoring a network |
| US20080240114A1 (en) * | 2005-11-22 | 2008-10-02 | Huawei Technologies Co., Ltd. | Data Frame Forwarding Method By Data Relay Entity And Data Relay Entity |
| CN101030904A (en) * | 2006-03-02 | 2007-09-05 | 中兴通讯股份有限公司 | Virtual LAN exchange system and system apparatus signal interaction |
| CN101262488A (en) * | 2007-03-09 | 2008-09-10 | 中兴通讯股份有限公司 | A content distribution network system and method |
| CN101640688A (en) * | 2009-08-20 | 2010-02-03 | 中兴通讯股份有限公司 | Content delivery network (CDN)-based switching method for main node controller and spare controller and CDN |
| CN103118055A (en) * | 2012-10-10 | 2013-05-22 | 中兴通讯股份有限公司 | Method and device for multi-media access |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019001514A1 (en) * | 2017-06-29 | 2019-01-03 | 贵州白山云科技股份有限公司 | Method and device for generating cdn coverage scheme, and computer-readable storage medium and computer device thereof |
| US11121939B2 (en) | 2017-06-29 | 2021-09-14 | Guizhou Baishancloud Technology Co., Ltd. | Method and device for generating CDN coverage scheme, and computer-readable storage medium and computer device thereof |
| CN110677464A (en) * | 2019-09-09 | 2020-01-10 | 深圳市网心科技有限公司 | Edge node device, content distribution system, method, computer device, and medium |
| CN113259769A (en) * | 2021-04-07 | 2021-08-13 | 苏州华兴源创科技股份有限公司 | Video source switching method and device, electronic equipment and computer readable storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104519080B (en) | 2019-01-08 |
| WO2015043257A1 (en) | 2015-04-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2204056B1 (en) | Mobility service clustering using network service segments | |
| CN103532741B (en) | A kind of access level network topology management method and system | |
| EP2429120A1 (en) | Distributed network management system, network element management server, and data configuration management method | |
| CN110536330A (en) | A kind of UE moving method, device, system and storage medium | |
| JP2011519523A (en) | Automatic configuration and discovery of mobile communication systems | |
| CN107404509B (en) | Distributed service configuration system and information management method | |
| US20100278184A1 (en) | Method of Processing Event Notifications and Event Subscriptions | |
| CN103634091A (en) | Time synchronization system and method with multiple synchronization domains, and cross-domain device | |
| US20150372874A1 (en) | System, method, and apparatus for incorporating a centralized self organizing network (son) in a network | |
| CN106341251A (en) | Master and slave switching method and device based on dual master control | |
| EP2482607A1 (en) | Method, device and system for establishing connection between neighbouring base stations | |
| CN103139656B (en) | A kind of cluster formula dynamic network distribution tree management method of live video distribution | |
| CN108574666B (en) | Data stream scheduling method, device and system | |
| CN104519080A (en) | Link establishing method and system for distributed CDN (Content Delivery Network) system | |
| CN107682411A (en) | A kind of extensive SDN controllers cluster and network system | |
| WO2017197983A1 (en) | Traffic processing method and system, storage medium, switch | |
| KR20010072233A (en) | Mobile communications network and data delivery method in mobile communications network | |
| CN109962806B (en) | Method and device for managing transmission network sub-slices | |
| US11533604B2 (en) | Method and system for controlling ID identifier network mobility based on programmable switch | |
| CN101873613B (en) | Method for acquiring CoMP capacity information of nodes, centralized management equipment and eNBs | |
| EP3570169B1 (en) | Method and system for processing device failure | |
| CN102123100A (en) | Method and device for maintaining routing information | |
| CN101170689B (en) | Method and device for configuring information synchronization | |
| JP4315850B2 (en) | Multicast data communication system, data communication apparatus, multicast data communication method and program | |
| US20150098468A1 (en) | Method of controlling routing of identifier/locator mapping service |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |