CN104519080B - A kind of link constructing method and system of Distributed C DN system - Google Patents
A kind of link constructing method and system of Distributed C DN system Download PDFInfo
- Publication number
- CN104519080B CN104519080B CN201310449373.2A CN201310449373A CN104519080B CN 104519080 B CN104519080 B CN 104519080B CN 201310449373 A CN201310449373 A CN 201310449373A CN 104519080 B CN104519080 B CN 104519080B
- Authority
- CN
- China
- Prior art keywords
- node
- layer
- control layer
- data information
- 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.)
- Active
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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
The invention discloses the link constructing methods and system of a kind of Distributed C DN system, wherein this method comprises: management level obtain the data information of control layer and the data information of each node of acquisition capability layer；Management level are the control layer that each node of capability layer distributes an ownership according to the data information of acquisition；Control layer is based on above-mentioned data information, establishes communication link to each node of capability layer.Through the invention, solve the problems, such as that link can not automatically switch in Distributed C DN system in the related technology, to realize under CDN large scope software framework, simplification of the control layer software to flexible management and the capability layer configuration of capability layer node topology.When signaling network topology changes, the automatic switchover of control layer software Yu capability layer inter-node link can be realized, the influence of business function will be preferably minimized.The quick dilatation and extensive dilatation of CDN system can also be met simultaneously.
Description
Technical field
The present invention relates to multimedia service fields, more particularly to the link constructing method and system of a kind of Distributed C DN system.
Background technique
With answering extensively for the rapid development of mechanics of communication, the continuous promotion of network bandwidth and global cloud computing technology
With Internet Users rapidly increase, IPTV(Interactive Internet TV) technology obtained Rapid Popularization, starts successively by generation
Major operator of boundary uses and disposes on a large scale.Especially the implementation of " triple play " policy instantly, more China are in the ascendant
Content distributing network (ContentDeliveryNetwork, referred to as CDN) industry provide the opportunity to develop of blowout.
The growth of CDN portfolio and its industrial chain all proposes the equipment at different levels such as CDN management level, control layer and capability layer
Going out higher requirement, target will gradually develop towards vast capacity, safe steady, networking flexibility direction, and extensive group
Network technology is urgently broken through.In the Distributed C DN system under CDN large scope software framework, to realize to extensive node administration
It is flexible with it is efficient, management and control ability to CDN have higher more reliable requirement.For the robustness of lifting system,
The management level and control layer of CDN also tend to be both configured to two-shipper (double centers) mode or active-standby mode, when this switches CDN networking
The link setup flexibility of network element has higher requirement.
By taking the networking for merging CDN system as an example, current CDN network element mainly establishes network element by the way of upward the bottom of to
Between communication link, the foundation of signaling network and media network topology be all it is cured, do not have the ability controlled, flexibility
It is poor, therefore Media Oriented Systems MLSS(management level, also referred to as CDNManager in previous framework) double Center Schemes in,
When modifying the topology of MLSS signaling network, need to execute a large amount of handover operation, Engineering operation on each node of capability layer
Complicated and difficulty is big, risk is big, is difficult to realize the automatic switchover of link.Under CDN large scope software framework, this drawback is aobvious
Existing meeting is more prominent.
Aiming at the problem that link can not automatically switch in Distributed C DN system in the related technology, not yet propose at present effective
Solution.
Summary of the invention
Aiming at the problem that link can not automatically switch in Distributed C DN system in the related technology, the present invention provides one kind
The link constructing method and system of Distributed C DN system, with to solve the above technical problems.
According to an aspect of the present invention, the present invention provides a kind of link constructing methods of Distributed C DN system, wherein should
Method includes: that management level obtain the data information of control layer and the data information of each node of acquisition capability layer；Above-mentioned management
Layer is the control layer that each node of capability layer distributes an ownership according to the data information of acquisition；Above-mentioned control layer is based on above-mentioned
Data information establishes communication link to each node of capability layer.
Preferably, the management level obtain the data information of the control layer and include: the management level pass through the control of WEB module
Preparative layer management interface adds the data information of the control layer；Wherein, the data information of the control layer includes control layer mark
Knowledge, module No., office number.
Preferably, the management level obtain the data information of each node of the capability layer and include: the management level pass through
WEB Module nodes management interface, adds the data information of each node of the capability layer, and the data information of the node includes
Node identification, node signaling IP, signaling port, module No., office number and link setup pattern information.
Preferably, control layer information based on the data, establishing communication link to each node of capability layer includes: institute
The data information that control layer synchronizes the management level is stated, the node for belonging to the control layer is filtered out from the data information
Data information；The data information of the node filtered out is stored in node link list；The control layer is according to institute
Node link list is stated, establishes communication link to each node of capability layer.
Preferably, the method also includes: the control layer monitors the node link list in real time；When monitoring discovery institute
When stating node link list and changing, the control layer is newly-built or closes the link of variation.
According to another aspect of the present invention, the present invention also provides a kind of link setup systems, wherein the system includes management
Layer, capability layer and control layer, in which: above-mentioned management level include: data obtaining module, for obtaining the data of above-mentioned control layer
Information, and obtain the data information of each node of aforementioned capabilities layer；Distribution module is for the data information according to acquisition
The each node of aforementioned capabilities layer distributes the control layer of an ownership；Above-mentioned control layer includes: link setup module, for according to above-mentioned number
It is believed that breath, establishes communication link to each node of above-mentioned capability layer.
Preferably, the data obtaining module includes: first acquisition unit, is connect for controlling layer-management by WEB module
Mouthful, add the data information of the control layer；Wherein, the data information of the control layer includes control layer mark, module No., office
Number.
Preferably, the data obtaining module includes: second acquisition unit, for passing through WEB Module nodes management interface,
Add the data information of each node of the capability layer, the data information of the node include node identification, node signaling IP,
Signaling port, module No., office number and link setup pattern information.
Preferably, the link setup module includes: to build table unit, for synchronizing the data information of the management level, from described
The data information for belonging to the node of the control layer is filtered out in data information；By the data information of the node filtered out
It is stored in node link list；Link setup unit, for being established to each node of capability layer logical according to the node link list
Interrogate link.
Preferably, the control layer further include: monitoring module, for monitoring the node link list in real time；Handle mould
Block, for creating or closing the link of variation when the monitoring module finds that the node link list changes.
Through the invention, management level obtain the data information of control layer and the data letter of each node of acquisition capability layer
Breath；Above-mentioned management level are the control layer that each node of capability layer distributes an ownership according to the data information of acquisition；Above-mentioned control
Layer is based on above-mentioned data information, establishes communication link to each node of capability layer, solves Distributed C DN system in the related technology
The problem of middle link can not automatically switch, to realize under CDN large scope software framework, control layer software is to capability layer section
The flexible management of point topology and the simplification of capability layer configuration.When signaling network topology changes, control can be realized
The automatic switchover of layer software and capability layer inter-node link, will be preferably minimized the influence of business function.It can also meet simultaneously
The quick dilatation and extensive dilatation of CDN system.
The above description is only an overview of the technical scheme of the present invention, in order to better understand the technical means of the present invention,
And it can be implemented in accordance with the contents of the specification, and in order to allow above and other objects of the present invention, feature and advantage can
It is clearer and more comprehensible, the followings are specific embodiments of the present invention.
Detailed description of the invention
Fig. 1 is the flow chart of the link constructing method of Distributed C DN system according to an embodiment of the present invention；
Fig. 2 is the structural block diagram of link setup system according to an embodiment of the present invention；
Fig. 3 is the system architecture diagram that the reversed link setup of CDN according to an embodiment of the present invention is realized；
Fig. 4 is the method flow schematic diagram of the reversed link setup of CDN according to an embodiment of the present invention.
Specific embodiment
In order to solve the problems, such as that link can not automatically switch in Distributed C DN system in the related technology, the present invention provides
A kind of link constructing method and system of Distributed C DN system carry out the present invention further detailed below in conjunction with attached drawing and embodiment
It describes in detail bright.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, the present invention is not limited.
Technical solution of the present invention is related to IPTV(network video), video monitoring, in the telecommunication networks such as mobile flow medium
In multimedia service field, more particularly to fusion CDN operation system under large-scale network-estabilishing mode, the group in Distributed C DN system
Network control method.
A kind of link constructing method of Distributed C DN system is present embodiments provided, Fig. 1 is distribution according to an embodiment of the present invention
The flow chart of the link constructing method of formula CDN system, as shown in Figure 1, this approach includes the following steps (step S102- step S106):
Step S102, management level obtain the data information of control layer and the data information of each node of acquisition capability layer；
Step S104, management level are the control that each node of capability layer distributes an ownership according to the data information of acquisition
Layer；
Step S106, control layer are based on above-mentioned data information, establish communication link to each node of capability layer.
By the above method, management level obtain the data information of control layer and the data of each node of acquisition capability layer
Information；Above-mentioned management level are the control layer that each node of capability layer distributes an ownership according to the data information of acquisition；Above-mentioned control
Preparative layer is based on above-mentioned data information, establishes communication link to each node of capability layer, solves Distributed C DN system in the related technology
The problem of link can not automatically switch in system, to realize under CDN large scope software framework, control layer software is to capability layer
The simplification of flexible management and the capability layer configuration of node topology.When signaling network topology changes, control can be realized
The automatic switchover of preparative layer software and capability layer inter-node link will be preferably minimized the influence of business function.It can also expire simultaneously
The quick dilatation and extensive dilatation of sufficient CDN system.
Preferably, above-mentioned control layer is based on above-mentioned data information, establishes on communication link includes: to each node of capability layer
The data information that control layer synchronizes above-mentioned management level is stated, the node for belonging to above-mentioned control layer is filtered out from above-mentioned data information
Data information；The data information of the above-mentioned node filtered out is stored in node link list；Above-mentioned control layer is according to upper
Node link list is stated, establishes communication link to each node of capability layer.
Preferably, the above method further include: control layer monitors above-mentioned node link list in real time；When monitoring finds above-mentioned section
When point list of link changes, control layer is newly-built or closes the link of variation.
Technical solution of the present invention technical problems to be solved are to provide the networking controlling party in a kind of Distributed C DN system
Method, for realizing under CDN large scope software framework, flexible management of the control layer software to capability layer node topology, Yi Jineng
The simplification of power layer configuration.When signaling network topology changes, chain between control layer software and ability node layer can be realized
The automatic switchover on road will drop to most the influence of business function (such as: function is recorded in content publication, channel creation, program listing)
It is low；The quick dilatation and extensive dilatation of CDN system can also be met simultaneously.
Through the embodiment of the present invention, the networking control method in Distributed C DN system, the Traditional control side with CDN networking
Method is compared, and control method of the present invention can be referred to as reversed link constructing method.System comprising modules based on the function include
CDNWEB module, management level data module, management level database, control layer data module, control layer database, control layer communication
Module.It describes in detail below to modules.
CDNWEB module: as the entrance of CDN management level data configuration, for CDN system resource configuration and issue,
Such as: the communication information of each node of capability layer, control layer net element information, node-home control layer.Relate generally to the increasing of configuration
Add, modify or deletes.It is also used to the showing interface of business datum simultaneously.
Management level data module: cooperating with control layer data module and complete data synchronizing function, will be added by management level
System resource configuration information full dose be synchronized to each control layer in the whole network.Meanwhile when management level data configuration changes
When, keep real time data to update between management level software and control layer software.
Management level database: all source configuration datas that preservation management layer issues, the energy that acquisition control layer software reports
Power node layer performance data and service processing result.The page data for being mainly used for CDNWEB module is shown and management level
Data between software and control layer software are synchronous.It can also be used in the caching upper-layer service instruction of management level software, periodically by managing
Layer reads and is distributed to control layer software.
Control layer network management module: increase, deletion, modification for control layer configurations.At the same time it can also being control layer
Each network element configuration management level communication information, such as management level IP, module No., office's data.
Control layer data module: it cooperates with management level data module and realizes data synchronizing function, the base that management level are issued
Plinth data are stored in control layer database, the normal operation for business function.
Control layer database: for providing access interfaces to all business process of control layer, save or update management level with
The configurations and business datum that control layer data issues when synchronous.The service order that cache management layer issues, is generated to ability
The service order of each node of layer is read by control layer business process timing and is distributed to each node of capability layer, and receives capability layer section
The processing result of point.Meanwhile when control layer data changes, control layer database can also notify specified module,
Keep the real-time update of data.
Control layer communication module: for the communication link management between control layer and each layer.The starting of control layer communication module
Afterwards, automatically from control layer database read management level and capability layer communication link setup information, actively with management level and capability layer
Establish communication link.Meanwhile communication module can also monitor the communication link setup information in control layer database in real time, once link setup is believed
Breath changes, and communication module can create or close immediately the link of variation, guarantees the correct and unobstructed of link.
Ability node layer: with control layer software link setup, for receive service order that control layer issues (such as: content publication,
Channel creation, program listing recording etc.), store media content.Report service order processing result and joint behavior data；And
Provide a user CDN media services etc..
The implementation method of reversed link setup when introducing a kind of Distributed C DN large-scale network-estabilishing below by specific embodiment, together
When can also be compatible with previous link setup mode, mainly comprise the steps that
In control layer network management, management level communication information is added for each control layer software, mainly includes management level IP, module
Each control layer database is written in number, innings number etc., data；
Control layer communication module timing inquiry control layer database, reads management level and communicates link setup information, actively to management
Layer software establishes signaling link；Meanwhile communication module can also the management level in real-time monitoring data library communicate link setup information, once
Information is changed, communication module can create or close immediately variation link, guarantee link it is correct with it is unobstructed.
Management level add each node data of capability layer by WEB Module nodes management interface, mainly include node identification,
The information such as node signaling IP, signaling port, module No., office number and link setup mode (positive link setup or reversed link setup)；Here, just
Capability layer is represented actively to control layer link setup to link setup, and (i.e. traditional CDN link setup mode), reversed link setup represents control layer actively
To capability layer link setup.Capability layer can be made of one or more nodes.
Based on above-mentioned introduction, it is preferable that in the present embodiment, management level obtain the data letter of each node of aforementioned capabilities layer
Breath includes: above-mentioned management level by WEB Module nodes management interface, adds the data information of each node of aforementioned capabilities layer,
The data information of above-mentioned node includes node identification, node signaling IP, signaling port, module No., office number and link setup mode letter
Breath.
Management level control layer management interface by WEB module, add the information of each control layer of CDN, mainly include control layer
The information such as mark, module No., office number.Management level are unique, and control layer can have multiple.
Based on above-mentioned introduction, it is preferable that in the present embodiment, the data information that management level obtain above-mentioned control layer includes:
Above-mentioned management level control layer management interface by WEB module, add the data information of above-mentioned control layer；Wherein, above-mentioned control layer
Data information include control layer mark, module No., office number.
Management level are the control that each node of capability layer distributes an ownership by WEB Module nodes control planning interface
Layer.For one node-home in a control layer, different nodes can belong to identical control layer, and a control layer can be controlled
Make hundreds of ability node layers.
The addition of CDNWEB module data is completed, and trigger data is synchronous, passes through management level data module and control layer data mould
Data synchronization mechanism between block, management level software by system resource configuration information (capability layer nodal information, control layer information,
Capability layer node-home information) full dose is synchronized to each network element of control layer.When resource allocation information changes, management level are soft
Real-time data synchronization is kept between part and control layer software.
Control layer software reads the data information that is synchronized to, filters out the node data in the administration of this control layer, according to building
The node data for needing reversed link setup is stored in the node link list of this control layer by chain pattern, the node of positive link setup
Data are not preserved in the list.When signaling network topology changes, and trigger data is synchronous again, the node of each control layer
List of link real-time update.
Control layer communication module timing scan database reads node link list, actively to each node software of capability layer
Establish communication link.Meanwhile communication module can also node link list information in real-time monitoring data library, once list information
Changed, communication module can create or close immediately variation link, guarantee active link it is correct with it is unobstructed.
For the node of positive link setup, control layer Waiting Capacity node layer actively initiates link setup request.
In the reversed link setup system of CDN using the building of method disclosed in the present embodiment, pass through management level software configuration
Data, and node link list is generated with the synchronization mechanism of control layer software, operating method is simple and efficient, and improves product
Ease for use；The software of control layer actively reversely establishes signaling to the software of each node of capability layer according to the list of capability layer node link
Link realizes the flexible management of topology；The conventional link setup mode (positive link setup) in CDN system is breached, while compatibility is just
To link setup and reversed link setup two ways, link constructing method is more flexible, reliable, practical from the point of view of capability layer.Importantly,
When modifying the topology of signaling network, the automatic switchover of control layer Yu capability layer link is realized, so that Engineering operation is simple
Change, the influence to business falls below minimum or without influence；Realize the modularization of management level and control layer, significant increase CDN
The ability of large-scale network-estabilishing and quick dilatation.
Corresponding to the link constructing method of above-described embodiment introduction, present embodiments provide a kind of link setup system, the system to
Realize above-described embodiment.Fig. 2 is the structural block diagram of link setup system according to an embodiment of the present invention, as shown in Fig. 2, the system includes
Management level, capability layer and control layer below describe to the structure in detail.
Management level include: data obtaining module 10, for obtaining the data information of above-mentioned control layer, and the above-mentioned energy of acquisition
The data information of each node of power layer；Distribution module 12 is each node of aforementioned capabilities layer for the data information according to acquisition
Distribute the control layer of an ownership；
Control layer includes: link setup module 20, for establishing to each node of above-mentioned capability layer logical according to above-mentioned data information
Interrogate link.
Through the foregoing embodiment, management level obtain the data information of control layer and the number of each node of acquisition capability layer
It is believed that breath；Above-mentioned management level are the control layer that each node of capability layer distributes an ownership according to the data information of acquisition；It is above-mentioned
Control layer is based on above-mentioned data information, establishes communication link to each node of capability layer, solves Distributed C DN in the related technology
The problem of link can not automatically switch in system, to realize under CDN large scope software framework, control layer software is to ability
The simplification of flexible management and the capability layer configuration of node layer topology.When signaling network topology changes, can be realized
The automatic switchover of control layer software and capability layer inter-node link will be preferably minimized the influence of business function.It simultaneously can be with
Meet the quick dilatation and extensive dilatation of CDN system.
Preferably, it includes: first acquisition unit that above- mentioned information, which obtain module 10, for controlling layer-management by WEB module
Interface adds the data information of above-mentioned control layer；Wherein, the data information of above-mentioned control layer include control layer mark, module No.,
Office number.
Preferably, it includes: second acquisition unit that above- mentioned information, which obtain module 10, for being connect by WEB Module nodes management
Mouthful, the data information of each node of aforementioned capabilities layer is added, the data information of above-mentioned node includes node identification, node signaling
IP, signaling port, module No., office number and link setup pattern information.
Preferably, above-mentioned link setup module 20 includes: to build table unit, for synchronizing the data information of above-mentioned management level, from upper
State the data information that the node for belonging to above-mentioned control layer is filtered out in data information；The data of the above-mentioned node filtered out are believed
Breath is stored in node link list；Link setup unit, for being established to each node of capability layer according to above-mentioned node link list
Communication link.
Preferably, above-mentioned control layer further include: monitoring module, for monitoring above-mentioned node link list in real time；Handle mould
Block, for creating or closing the link of variation when above-mentioned monitoring module finds that above-mentioned node link list changes.
It is described in detail below in conjunction with technical solution of the accompanying drawings and embodiments to the embodiment of the present invention.
Fig. 3 is the system architecture diagram that the reversed link setup of CDN according to an embodiment of the present invention is realized, as shown in figure 3, the present embodiment
A kind of system based on the reversed link setup of CDN is provided, including (label is CDN to a CDN management stratum server in figure
Manager), one or more CDN controls stratum server (label is CDN Control in figure), one or more CDN
Capability layer node device (i.e. CDN node, label is in figure).It includes CDNWEB module that wherein CDN manages stratum server again
(CDNWEB), management level data module (Manager Layer Data, abbreviation ML-D), management level database (Manager
Layer Database, abbreviation ML-DB)；CDN control stratum server includes control layer network management (NetNumen N31, abbreviation again
N31), control layer data module (Control Layer Data, abbreviation CL-D), control layer database (Control Layer
Database, abbreviation CL-DB), control layer communication module (Control Layer Communication, abbreviation CL-COM).
Fig. 4 is the method flow schematic diagram of the reversed link setup of CDN according to an embodiment of the present invention, as shown in figure 4, the process packet
Include following steps (step S401- step S414):
Step S401: adding control layer CDNC network element in N31 network management, is that each CDNC network element adds management level by network management
The communication information of CDNM, main includes signaling IP, module No., office number and the port etc. of CDNM, and data write direct each CDNC
In the database CL-DB of network element；
Step S402: the table in scanning CL-DB is removed in the communication module CL-COM timing of each CDNC network element, reads the logical of CDNM
Interrogate link setup information.
Step S403: each CDNC network element of control layer actively establishes communication link to management level CDNM；If in CL-DB table
CDNM communication information is changed, and CL-COM can also be closed immediately or the link of more new change, guarantees the correct of active link
With it is unobstructed.
Step S404: adding the communication data (one or more) of each NODE of capability layer by management level CDNWEB, and
The data (one or more) of each CDNC network element of control layer.It simultaneously can also be that each NODE and CDNC establish attaching relation, with
And business dependence between NODE etc..Data are write direct in management level ML-DB, while also will be updated the version of respective table
This information, for marking the data in the table to be changed.
Step S405: management layer data addition is completed, and CDNWEB trigger data is synchronous, sends out to management level data module ML-D
Data Notification of Changes is sent, the latest version information of each tables of data is carried in Notification of Changes.
Step S406: after management level data module ML-D receives data Notification of Changes, message is broadcast to all CDNC
The data module CL-D of network element.
Step S407: each CDNC network element data module CL-D inquiry CLDB in data version information, and with notice
Version number makes comparisons, the synchronous process of turn-on data.
Step S408: each CDNC network element table version information according to acquired in CL-D, decision whether to ML-D send data
Synchronization request, and which table synchronized.
Step S409:ML-D receives the data synchronization request from each CDNC network element, returns to the CL-D module of each CDNC
Data sync response carries synchronous FTP information of data etc..
After step S410:CL-D receives the data sync response of CDNM return, obtained from the address FTP that CDNM is specified
Latest data, and write data into the CL-DB database of CDNC.
Step S411: the node communication information table in scanning CL-DB is removed in the communication module CL-COM timing of each CDNC network element,
Obtain the node communication information for needing reversed link setup.
Step S412: the CL-COM of each CDNC network element actively sends link setup to all capability layer NODE for belonging to this CDNC
Request, establishes the communication link of CDNC and NODE.
The CL-DB of step S413:CDNC network element has the function of data Notification of Changes.Realize CL-COM to section by CL-DB
The real time monitoring of point list of link information, when node communication information changes, the CL-DB of each CDNC network element notifies corresponding
Communication module CL-COM.
After step S414:CL-COM receives data Notification of Changes, the node communication information in this control layer CL-DB is inquired
Table obtains the newest communication information for belonging to this CDNC and the node of the reversed link setup of needs.According to newest list information, create or
Close variation link, guarantee active link it is correct with it is unimpeded.
Be using the technical advantage of the embodiment of the present invention: the software of control layer is according to capability layer node link list, actively
Signaling link is reversely established to the software of each node of capability layer, realizes the flexible management of topology；In opening up for modification signaling network
When flutterring, only need to modify node-home control layer information in management level can create or close the link of variation, exempt from
It has gone to execute a large amount of handover operation on each node of capability layer, so that Engineering operation is simplified；Also the big rule of capability layer are facilitated
Batch node quickly accesses when mould dilatation.
In the present embodiment, management level CDNM and control layer CDNC is used as a module MLSS in previous framework
(Media Location Srevice System), is uniquely disposed in the whole network.MLSS is directly managed and is controlled multiple nodes.?
It is split as management level CDNM and the two different components of control layer CDNC in the present embodiment, is independently disposed, greatly
Improve the dilatation ability of CDN system.The improvement and deformation can increase practicability of the invention, but also belong to protection of the present invention
Range.
Although for illustrative purposes, the preferred embodiment of the present invention has been disclosed, those skilled in the art will recognize
It is various improve, increase and replace be also it is possible, therefore, the scope of the present invention should be not limited to the above embodiments.
Claims (8)
1. a kind of link constructing method of Distributed C DN system, which is characterized in that the described method includes:
Management level obtain the data information of control layer and the data information of each node of acquisition capability layer；
The management level are the control layer that each node of capability layer distributes an ownership according to the data information of acquisition；
The control layer synchronizes the data information of the management level, filters out from the data information and belongs to the control layer
Node data information；The data information of the node filtered out is stored in node link list；
The control layer establishes communication link according to the node link list, to each node of capability layer.
2. the method as described in claim 1, which is characterized in that the management level obtain the data packets of the control layer
It includes:
The management level control layer management interface by WEB module, add the data information of the control layer；Wherein, the control
The data information of preparative layer includes control layer mark, module No., office number.
3. the method as described in claim 1, which is characterized in that the management level obtain the data of each node of the capability layer
Information includes:
The management level add the data information of each node of the capability layer by WEB Module nodes management interface, described
The data information of node includes node identification, node signaling IP, signaling port, module No., office number and link setup pattern information.
4. the method as described in claim 1, which is characterized in that the method also includes:
The control layer monitors the node link list in real time；
When monitoring finds that the node link list changes, the control layer is newly-built or closes the link of variation.
5. a kind of link setup system, which is characterized in that the system comprises management level, capability layer and control layers, in which:
The management level include: data obtaining module, for obtaining the data information of the control layer, and the acquisition ability
The data information of each node of layer；
Distribution module is the control layer that each node of the capability layer distributes an ownership for the data information according to acquisition；
The control layer includes: link setup module, for establishing communication to each node of the capability layer according to the data information
Link；
The link setup module includes:
Table unit is built, for synchronizing the data information of the management level, is filtered out from the data information and belongs to the control
The data information of the node of preparative layer；The data information of the node filtered out is stored in node link list；
Link setup unit, for establishing communication link to each node of capability layer according to the node link list.
6. system as claimed in claim 5, which is characterized in that the data obtaining module includes:
First acquisition unit adds the data information of the control layer for controlling layer management interface by WEB module；Wherein,
The data information of the control layer includes control layer mark, module No., office number.
7. system as claimed in claim 5, which is characterized in that the data obtaining module includes:
Second acquisition unit, for adding the data letter of each node of the capability layer by WEB Module nodes management interface
Breath, the data information of the node includes node identification, node signaling IP, signaling port, module No., office number and link setup mode
Information.
8. system as claimed in claim 5, which is characterized in that the control layer further include:
Monitoring module, for monitoring the node link list in real time；
Processing module, for creating or closing variation when the monitoring module finds that the node link list changes
Link.
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 CN104519080A (en) | 2015-04-15 |
| CN104519080B true 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) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107707378B (en) * | 2017-06-29 | 2018-11-13 | 贵州白山云科技有限公司 | A kind of CDN covering scheme generation method and device |
| 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 |
| CN113259769B (en) * | 2021-04-07 | 2022-05-24 | 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 (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7975043B2 (en) * | 2003-02-25 | 2011-07-05 | Hewlett-Packard Development Company, L.P. | Method and apparatus for monitoring a network |
| CN100377549C (en) * | 2005-11-22 | 2008-03-26 | 华为技术有限公司 | Method for retransmitting data frame by data retransmitting entity |
| 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 (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2015043257A1 (en) | 2015-04-02 |
| CN104519080A (en) | 2015-04-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101755434B (en) | Nomadic subscriber data system | |
| US20120047244A1 (en) | Distributed Network Management System, Network Element Management Server, and Data Configuration Management Method | |
| US10230802B2 (en) | Providing stateless network services | |
| US20090070337A1 (en) | Apparatus and method for a distributed storage global database | |
| CN109525426B (en) | FV-based service control system and method for open MEC platform | |
| US20170230290A1 (en) | Multi-domain centralized content-centric networking | |
| CN101521616B (en) | Method and system for neighbor migration in Border Gateway Protocol (BGP) distributed system | |
| CN108449197A (en) | A kind of cloudy environment network construction method based on software defined network | |
| CN101600098A (en) | A kind of distributed node video monitoring system and management method thereof | |
| CN103780682B (en) | A kind of information sharing system towards Ad Hoc network | |
| CN104519080B (en) | A kind of link constructing method and system of Distributed C DN system | |
| CN106341251A (en) | Master and slave switching method and device based on dual master control | |
| CN104468633A (en) | SDN southing security proxy product | |
| CN109586973B (en) | Data stream hopping transmission method based on universal identification network system | |
| CN107612960A (en) | Integral control system in dispatching of power netwoks | |
| CN112689163A (en) | Video service transmission system and method based on SDN and in-network cache | |
| CN110213156A (en) | A kind of span centre heart group's instant communicating method and system | |
| CN101534246B (en) | Method, device and system thereof for migrating VRF | |
| CN106357723A (en) | Synchronous system and method for multi-cluster information caching based on cloud host | |
| WO2024140698A1 (en) | Session processing method, system and apparatus, and storage medium | |
| TWI627872B (en) | Control method for network communication system including base station network management server and multi-access edge computing ecosystem device | |
| CN109698844A (en) | A kind of media asset management system | |
| CN101170689A (en) | Method and device for configuring information synchronization | |
| CN107968825B (en) | Message forwarding control method and device | |
| CN103973650B (en) | Content distributing network and the method that Content Management is carried out in content distributing network |
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 |