CN106888270A - Return the method and system of source routing scheduling - Google Patents
Return the method and system of source routing scheduling Download PDFInfo
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- CN106888270A CN106888270A CN201710203830.8A CN201710203830A CN106888270A CN 106888270 A CN106888270 A CN 106888270A CN 201710203830 A CN201710203830 A CN 201710203830A CN 106888270 A CN106888270 A CN 106888270A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/60—Scheduling or organising the servicing of application requests, e.g. requests for application data transmissions using the analysis and optimisation of the required network resources
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Abstract
The invention discloses a kind of time method and system of source routing scheduling.Methods described includes：First edge node sends request data package to time source routing platform according to client request content；Return source routing platform and receive request data package, and transfer the Back ground Information of all fringe nodes, return source route selection information according to what Back ground Information obtained client request content, and feed back to first edge node；First edge node obtains client request content according to source route selection information is returned to source station or second edge node, and by client request content feed to client.The present invention fast, accurately respond request domain name can return source routing by returning source routing platform in fringe node, and controlling the fringe node of each request domain name can get optimal time source routing, and quick response user's request content improves service quality.
Description
Technical field
The present invention relates to communication technical field, the more particularly to a kind of time method and system of source routing scheduling.
Background technology
Content distributing network (Content Delivery Network, CDN) is the placement node serve everywhere in network
The intelligent virtual network on existing Internet basic that device is constituted.CDN system can in real time according to network traffics and
The link of each node, load state and the request of user is re-directed to the integrated information such as the distance of user and response time
On the node nearest from user.
At present, CDN system is made up of many server nodes, and server node can be divided into source station and CDN node, wherein,
CDN node include level cache node (also known as：Fringe node) and L2 cache node etc..When user sends to be asked, distance
Nearest level cache node receives the request, and when the uncached request content of level cache node, level cache node can be with
By the L2 cache node link with its static programming, request content is obtained from L2 cache, or by L2 cache
Go to source station to obtain content to return again to level cache, so as to reduce the pressure or lifting fringe node of source station to the network matter of source station
Amount.
During the embodiment of the present invention is implemented, inventor has found that prior art at least has following technical problem：
At present, L2 cache node is all mainly that static programming, i.e. route are to configure good in advance in advance, will not dynamically be adjusted
Whole, the redundancy of L2 cache is more under normal circumstances, but needs a large amount of renewal such as patch renewal, release of new products etc. is run into
During the situation of data, inadequate resource occurs again, it is impossible to timely respond to, make dynamic adjustment, reduce go back to source routing scheduling system
The service quality of system.
The content of the invention
In order to solve the problems of the prior art, the embodiment of the invention provides the method for a kind of time source routing scheduling and be
System.The technical scheme is as follows：
In a first aspect, the method for a kind of time source provided in an embodiment of the present invention routing scheduling, including：
First edge node sends request data package to time source routing platform according to client request content；
Return source routing platform and receive request data package, and transfer the Back ground Information of all fringe nodes, according to Back ground Information
Obtain client request content returns source route selection information, and feeds back to first edge node；
First edge node obtains client request content according to source route selection information is returned to source station or second edge node, and
By client request content feed to client.
Alternatively, request data package includes request domain name, first edge nodal information and source station information；Back ground Information is included
The nominal bandwidth information of all fringe nodes, all fringe nodes can be used for the bandwidth of fringe node and can be used for L2 cache
The use of bandwidth is than, the real-time traffic bandwidth information of all fringe nodes, and the real-time network detection between all fringe nodes
Quality information.
Alternatively, also include：
When client request content is cached with first edge node, client request content is sent to client；
When uncached client request content in first edge node, judge to be asked with the presence or absence of client in local cache
Seek the not out of date time source route selection information of content；
When there is client request content in local cache it is not out of date return source route selection information when, first edge node root
According to source route selection information is returned client request content is obtained to source station or second edge node；
When source route selection information is returned in the absence of client request content not out of date in local cache, first edge node
Send request data package to time source routing platform.
Alternatively, first edge node obtains client request content according to source route selection information is returned to second edge node,
Including：
Judge whether second edge node is cached with client request content,
When second edge nodal cache has client request content, request content is sent to the first side by second edge node
Edge node；
When the uncached client request content of second edge node, second edge node obtains client request to source station
Content, and feed back to first edge node.
Alternatively, also include：
First edge node is by the client request content of acquisition, time source route selection information and returns when coming into force of source route selection information
Between cache.
Second aspect, the system of a kind of time source provided in an embodiment of the present invention routing scheduling, including：Return source routing platform and
Multiple fringe nodes, at least include first edge node and second edge node in multiple fringe nodes；
First edge node, for sending request data package according to client request content, to time source routing platform, and root
Source route selection information to source station or second edge node acquisition client request content is returned according to client request content, and by client
End request content feeds back to client；
Source routing platform is returned, for receiving request data package, and the Back ground Information of all fringe nodes is transferred, according to basis
Time source route selection information of acquisition of information client request content simultaneously feeds back to first edge node.
Alternatively, first edge node, is additionally operable to：
When client request content is cached with first edge node, client request content is sent to client；
When uncached client request content in first edge node, judge to be asked with the presence or absence of client in local cache
The not out of date time source route selection information of content is sought,
When there is client request content in local cache it is not out of date return source route selection information when, first edge node root
According to source route selection information is returned client request content is obtained to source station or second edge node.
Alternatively, second edge node, is additionally operable to：
Judge whether second edge node is cached with client request content,
When second edge nodal cache has client request content, be sent to for client request content by second edge node
First edge node；
When the uncached client request content of second edge node, second edge node obtains client request to source station
Content, and feed back to first edge node.
Alternatively, first edge node, is additionally operable to：
The client request content that will be obtained, the entry-into-force time caching for returning source route selection information and returning source route selection information.
Alternatively, also include：
Basic data node, the Back ground Information for providing all fringe nodes for time source routing platform, Back ground Information bag
The nominal bandwidth information of all fringe nodes is included, all fringe nodes can be used for the bandwidth of fringe node and can be used for L2 cache
Bandwidth use than, the real-time traffic bandwidth information of all fringe nodes, and real-time network between all fringe nodes is visited
Mass metering information.
The beneficial effect that technical scheme provided in an embodiment of the present invention is brought is：
The provided in an embodiment of the present invention time method and system of source routing scheduling, according to the request data that fringe node sends
Bag, the Back ground Information of all fringe nodes is transferred by returning source routing platform, is obtained in client request further according to Back ground Information
Hold return source route selection information, can fast, accurately customer in response end request content fringe node return source routing, it is all of
Fringe node includes first edge node and second edge node with respect to being reciprocity for client, and node configuration also can be right
Deng, level cache can be served as, while return source routing platform can dynamically adjust some fringe node (such as second edge sections again
Point) as L2 cache.So so that client request content can get optimal time source routing in fringe node, soon
Fast customer in response end request content, improves service quality.Meanwhile, turn avoid the L2 cache of static programming in the prior art
More and inadequate resource the situation of redundancy.
Brief description of the drawings
Technical scheme in order to illustrate more clearly the embodiments of the present invention, below will be to that will make needed for embodiment description
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for
For ordinary skill user, on the premise of not paying creative work, other can also be obtained according to these accompanying drawings
Accompanying drawing.
Fig. 1 is the flow chart of the method for a kind of time source provided in an embodiment of the present invention routing scheduling；
Fig. 2 is that the first edge node of the embodiment of the present invention obtains request according to source route selection information is returned to second edge node
The flow chart of content；
Fig. 3 is the flow chart of another method for returning source routing scheduling provided in an embodiment of the present invention；
Fig. 4 is the flow chart of another method for returning source routing scheduling provided in an embodiment of the present invention；
Fig. 5 is the flow chart of the system of a kind of time source provided in an embodiment of the present invention routing scheduling；
Fig. 6 is the flow chart of another system for returning source routing scheduling provided in an embodiment of the present invention.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing to embodiment party of the present invention
Formula is described in further detail.
A kind of time method of source routing scheduling is the embodiment of the invention provides, the method can be applied in CDN (Content
Delivery Network, content distributing network) in, the main body that the method is performed in the process of implementation includes back that source routing is put down
Platform, basic data center and multiple content caching servers, wherein, each content caching server in CDN is reciprocity pass
System, according to the scheduling for returning source routing platform, the method in the process of implementation can be by each in all the elements caching server
Content caching server as CDN fringe node, also can be slow as source routing platform two grades when source routing is carried out back is returned
Deposit.
Below in conjunction with specific embodiment, the handling process shown in Fig. 1-Fig. 5 is described in detail, content can be with
It is as follows：
Step 100, first edge node sends request data package to time source routing platform according to client request content.
In embodiment, client can send request and be used to obtain in client request to nearest content caching server
Hold, the method for this time source routing scheduling will receive the caching server of the client request content as first edge node；
First edge node sends request data package further according to client request content to source routing platform is returned.
Wherein, the content in request data package includes source station information (domain name or IP comprising one or more source servers
And the real time information of port), request URL (Uniform esource Locator, URL) information or request
Domain name and first edge nodal information.
Step 200, time source routing platform reception request data package, and the Back ground Information of all fringe nodes is transferred, according to
Back ground Information obtains time source route selection information of client request content, and feeds back to first edge node.In the present embodiment, base
Nominal bandwidth information of the plinth packet containing all fringe nodes, all fringe nodes can be used for the bandwidth of fringe node and can be used for
The use of the bandwidth of L2 cache is than, the real-time traffic bandwidth information of all fringe nodes, and the reality between all fringe nodes
When network detection quality information.
For example, time source route selection information that routing platform in source obtains client request content according to Back ground Information, tool are returned
Body is：
1, obtain the bandwidth percentage of all fringe nodes, the nominal bandwidth information of as all fringe nodes, it is assumed that institute
There is CDN node for node1, node2, node3 ... ..., nodeN, (from node1 to nodeN)：P1, p2, p3 ... ..., pN；
2, obtain all fringe nodes can be used for the bandwidth of fringe node with can be used for the use of the bandwidth of L2 cache than
(from node1 to nodeN)：P_bw1, p_bw2, p_bw3 ... ..., p_bwN；
3, obtain real-time traffic bandwidth information (from .node1 to nodeN) of all fringe nodes：R_bw1, r_bw2, r_
Bw3 ... ..., r_bwN；
4, obtain real-time network detection quality information between all fringe nodes (from node1 to nodeN)：Ori_qs1,
Ori_qs2, ori_qs3 ... ..., ori_qsN；Including the network of node1 (first edge node) to other fringe nodes
Quality (from node2 to nodeN)：Node_qs2, node_qs3 ... ..., node_qsN；
5, obtain potential second edge node listing List according to above-mentioned steps 1,2,3<nodes>=func1 (List<
p1..pN>,List<p_bw1....p_bwN>,List<r_bw1...r_bwN>)；
6, the information and step 5 obtained according to step 4 further get node1 to List<nodes>In Hui Yuanlu
By information
List<routes>=func2 (List<nodes>,List<ori_qs1....ori_qsN>,List<node_
qs1...node_qsN>)。
Wherein, returning source route selection information includes the Back ground Information of second edge node and being cached with for client request content
The effect time, when no fringe node is cached with effective client request content, returning source route selection information includes the base of source station
Plinth information, first edge node can only go to source station to obtain client request content.Wherein, second edge node is and is cached with visitor
The fringe node of family end request content, and its Back ground Information is included in back in the route selection information of source.
Step 300, first edge node is asked according to source route selection information is returned to source station or second edge node acquisition client
Content is sought, and by client request content feed to client.
In the present embodiment, first edge node is according to the Back ground Information for returning the second edge node that source route selection information includes
Or the Back ground Information of source station determines request path, obtained in client request according to request path to second edge node or source station
Hold, client is fed back to after obtaining client request content.
Referring to Fig. 2, alternatively, first edge node is obtained in request according to source route selection information is returned to second edge node
Hold, including：
Step 310, judges whether second edge node is cached with client request content,
Step 320, when second edge nodal cache has client request content, second edge node is by client request
Appearance is sent to first edge node；
Step 330, when the uncached client request content of second edge node, second edge node obtains visitor to source station
Family end request content, and feed back to first edge node.
In the present embodiment, when the uncached client request content of second edge node, the transmission of source routing platform is as returned
Return that source route selection information is wrong, to prevent that request content cannot be obtained, into step 330, second edge node is obtained to source station
Request content.
Wherein, second edge node can be cached the client request content of acquisition, so as to other fringe nodes pair
It is accessed again.
Referring to Fig. 3, the provided in an embodiment of the present invention time method of source routing scheduling, the present embodiment also includes：
Judge whether be cached with client request content in first edge node, specifically include：
Step 110, when client request content is cached with first edge node, client request content is sent to
Client；
In the present embodiment, when client request content has been cached in first edge node, can be directly anti-by request content
Feed client.
Step 120, when uncached client request content in first edge node, judges to whether there is in local cache
The not out of date time source route selection information of client request content,
Step 130, when there is client request content in local cache it is not out of date return source route selection information when, the first side
Edge node obtains client request content according to source route selection information is returned to source station or second edge node.
When source route selection information is returned in the absence of client request content not out of date in local cache, into step 100,
First edge node sends request data package to time source routing platform.
Referring to Fig. 4, alternatively, the method for provided in an embodiment of the present invention time source routing scheduling also includes：
Step 400, client request content, time source route selection information and time source route selection information that first edge node will be obtained
Entry-into-force time caching.
In the present embodiment, client request content, time source route selection information and time source routing that first edge node will be obtained
The entry-into-force time caching of information, when other fringe nodes according to return time source route selection information that routing platform in source sends access this first
During fringe node, now, the first edge node can be used as the second edge node of other fringe nodes.Therefore, this implementation
Fringe node is reciprocity in the method for returning source routing scheduling that example is provided.
The provided in an embodiment of the present invention time method of source routing scheduling, according to the request data package that fringe node sends, leads to
The Back ground Information that source routing platform transfers all fringe nodes is crossed back, returning for client request content is obtained further according to Back ground Information
Source route selection information, fast, accurately can return source routing, all of edge section by customer in response end request content in fringe node
Point includes first edge node and second edge node with respect to being reciprocity for client, and node configuration also can be reciprocity, can
To serve as level cache, while returning source routing platform can dynamically adjust some fringe nodes (such as second edge node) work again
It is L2 cache.So so that client request content can get optimal time source routing, quick response in fringe node
Client request content, improves service quality.Meanwhile, turn avoid the L2 cache redundancy of static programming in the prior art compared with
The situation of many and inadequate resource.
Based on identical technology design, the embodiment of the present invention additionally provides a kind of time system of source routing scheduling, referring to figure
5, including：Source routing platform and multiple fringe nodes are returned, first edge node and the second side are at least included in multiple fringe nodes
Edge node；
First edge node, for sending request data package according to client request content, to time source routing platform, and root
Source route selection information to source station or second edge node acquisition client request content is returned according to client request content, and by client
End request content feeds back to client；
Source routing platform is returned, for receiving request data package, and the Back ground Information of all fringe nodes is transferred, according to basis
Time source route selection information of acquisition of information client request content simultaneously feeds back to first edge node.
Alternatively, first edge node, is additionally operable to：
When client request content is cached with first edge node, client request content is sent to client.
When uncached client request content in first edge node, judge to be asked with the presence or absence of client in local cache
The not out of date time source route selection information of content is sought,
When there is the not out of date when returning source route selection information of correspondence client request content, first edge section in local cache
Point obtains client request content according to source route selection information is returned to source station or second edge node.
Alternatively, second edge node, is additionally operable to：
Judge whether second edge node is cached with client request content,
When second edge nodal cache has client request content, be sent to for client request content by second edge node
First edge node；
When the uncached client request content of second edge node, second edge node obtains client request to source station
Content, and feed back to first edge node.
Alternatively, first edge node, is additionally operable to：
The client request content that will be obtained, the entry-into-force time caching for returning source route selection information and returning source route selection information.
Referring to Fig. 6, alternatively, also include：
Basic data node, the Back ground Information for providing all fringe nodes for time source routing platform, Back ground Information bag
The nominal bandwidth information of all fringe nodes is included, all fringe nodes can be used for the bandwidth of fringe node and can be used for L2 cache
Bandwidth use than, the real-time traffic bandwidth information of all fringe nodes, and real-time network between all fringe nodes is visited
Mass metering information.
In the present embodiment, basic data node is basic data center.
The provided in an embodiment of the present invention time system of source routing scheduling, according to the request data package that fringe node sends, leads to
The Back ground Information that source routing platform transfers all fringe nodes is crossed back, returning for client request content is obtained further according to Back ground Information
Source route selection information, fast, accurately can return source routing, all of edge section by customer in response end request content in fringe node
Point includes first edge node and second edge node with respect to being reciprocity for client, and node configuration also can be reciprocity, can
To serve as level cache, while returning source routing platform can dynamically adjust some fringe nodes (such as second edge node) work again
It is L2 cache.So so that client request content can get optimal time source routing, quick response in fringe node
Client request content, improves service quality.
Device embodiment described above is only schematical, wherein the unit illustrated as separating component can
To be or may not be physically separate, the part shown as unit can be or may not be physics list
Unit, you can with positioned at a place, or can also be distributed on multiple NEs.It can according to the actual needs be selected
In some or all of module realize the purpose of this embodiment scheme.Those of ordinary skill in the art are not paying creativeness
Work in the case of, you can to understand and implement.
Through the above description of the embodiments, those skilled in the art can be understood that each implementation method can
Realized by the mode of software plus required general hardware platform, naturally it is also possible to by hardware.Based on such understanding, on
Stating the part that technical scheme substantially contributes to prior art in other words can be embodied in the form of software product, should
Computer software product can be stored in a computer-readable storage medium, such as ROM/RAM, magnetic disc, CD, including some fingers
Order is used to so that a computer equipment (can be personal computer, server, or network equipment etc.) performs each implementation
Method described in some parts of example or embodiment.
Also, it should be noted that term " including " or any other variant thereof is intended to cover non-exclusive inclusion, from
And cause to include the commodity or system of a series of key elements not only including those key elements, but also its including being not expressly set out
His key element, or it is this commodity or the intrinsic key element of system also to include.In the absence of more restrictions, by language
The key element that sentence "including a ..." is limited, it is not excluded that also exist in the commodity or system including the key element other
Identical element.
Described above has shown and described some preferred embodiments of the invention, but as previously described, it should be understood that the present invention
Be not limited to form disclosed herein, be not to be taken as the exclusion to other embodiment, and can be used for various other combinations,
Modification and environment, and can be in invention contemplated scope described herein, by above-mentioned teaching or the technology or knowledge of association area
It is modified.And the change and change that those skilled in the art are carried out do not depart from the spirit and scope of the present invention, then all should be in this hair
In the protection domain of bright appended claims.
Claims (10)
1. the method that a kind of time source routing is dispatched, it is characterised in that methods described includes：
First edge node sends request data package to time source routing platform according to client request content；
The described time source routing platform reception request data package, and the Back ground Information of all fringe nodes is transferred, according to described
Back ground Information obtains time source route selection information of the client request content, and feeds back to the first edge node；
The first edge node returns source route selection information according to please to source station or the second edge node acquisition client
Content is sought, and the client is given by the client request content feed.
2. method according to claim 1, it is characterised in that the request data package includes request domain name, first edge
Nodal information and source station information；Nominal bandwidth information of the Back ground Information comprising all fringe nodes, all fringe nodes can
For fringe node bandwidth with can be used for the use of the bandwidth of L2 cache than the real-time traffic bandwidth letter of all fringe nodes
Breath, and the real-time network detection quality information between all fringe nodes.
3. method according to claim 1, it is characterised in that also include：
When the client request content is cached with the first edge node, the client request content is sent to
The client；
When the uncached client request content in the first edge node, judge in local cache with the presence or absence of described
The not out of date time source route selection information of client request content；
When there is the client request content in local cache it is not out of date return source route selection information when, the first edge section
Point obtains the client request content according to the source route selection information that returns to source station or second edge node；
When source route selection information is returned in the absence of the client request content not out of date in local cache, the first edge
Node sends the request data package to described time source routing platform.
4. the method according to claim 1 or 3, it is characterised in that the first edge node returns source routing according to
Information obtains the client request content to second edge node, including：
Judge whether the second edge node is cached with the client request content,
When the second edge nodal cache has the client request content, the second edge node please by the client
Content is asked to be sent to the first edge node；
When the uncached client request content of the second edge node, the second edge node is obtained to the source station
The client request content is taken, and feeds back to the first edge node.
5. method according to claim 1, it is characterised in that methods described also includes：
The client request content, described time source route selection information and described time source routing that the first edge node will be obtained
The entry-into-force time caching of information.
6. the system that a kind of time source routing is dispatched, it is characterised in that including：Source routing platform and multiple fringe nodes are returned, it is described
At least include first edge node and second edge node in multiple fringe nodes；
The first edge node, for sending request data package to described time source routing platform according to client request content,
And the client request content is obtained to source station or second edge node according to the source route selection information that returns of client request content,
And by the client request content feed to client；
Described time source routing platform, for receiving the request data package, and transfers the Back ground Information of all fringe nodes, according to
The Back ground Information obtains time source route selection information of the client request content, and feeds back to the first edge node.
7. system according to claim 6, it is characterised in that the first edge node, is additionally operable to：
When the client request content is cached with the first edge node, the client request content is sent to
The client；
When the uncached client request content in the first edge node, judge in local cache with the presence or absence of described
The not out of date time source route selection information of client request content；
When there is the client request content in local cache it is not out of date return source route selection information when, the first edge section
Point obtains the client request content according to the source route selection information that returns to source station or second edge node；
When source route selection information is returned in the absence of the client request content not out of date in local cache, the first edge
Node sends the request data package to described time source routing platform.
8. system according to claim 6, it is characterised in that the second edge node, is additionally operable to：
Judge whether the second edge node is cached with the client request content,
When the second edge nodal cache has the client request content, the second edge node please by the client
Content is asked to be sent to the first edge node；
When the uncached client request content of the second edge node, the second edge node is obtained to the source station
The client request content is taken, and feeds back to the first edge node.
9. system according to claim 6, it is characterised in that the first edge node, is additionally operable to：
The entry-into-force time of the client request content, described time source route selection information and described time source route selection information that obtain is delayed
Deposit.
10. system according to claim 6, it is characterised in that also include：
Basic data node, for returning the Back ground Information that source routing platform provides all fringe nodes, the basis letter for described
Breath includes the nominal bandwidth information of all fringe nodes, and all fringe nodes can be used for the bandwidth of fringe node and can be used for two grades
The use of the bandwidth of caching is than, the real-time traffic bandwidth information of all fringe nodes, and the Real-time Network between all fringe nodes
Network detection quality information.
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