CN102811256B - A kind of method and system for realizing application layer transmission optimization - Google Patents
A kind of method and system for realizing application layer transmission optimization Download PDFInfo
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Abstract
The invention discloses a kind of method and system for realizing application layer transmission optimization, including：The network information and corresponding strategies of PID networks where application layer transmission optimization (ALTO) calculator in network location identifier (PID) network that each supplier defines is collected are arranged on, the network information being collected into and corresponding strategies are sent to affiliated ALTO server；ALTO calculators receive the network information and strategy for the PID networks under ALTO server that ALTO server is sent, according to strategy and the routing iinformation inquired, PID networks reach the cost information of other PID networks under ALTO server where calculating itself respectively, and cost information is sent into ALTO server.
Description
Technical field
ALTO (Application-Layer Traffic are realized the present invention relates to field of network transmission, more particularly to one kind
Optimization, application layer transmission optimization) method and system.
Background technology
At present, P2P (Peer-to-Peer, point-to-point) business is carried out extensively, such as BT, a sudden peal of thunder, PPLive and
PPStream etc. is widely used.But, in P2P application aspects, because P2P routings are more random, be in early days it is directly random from
Selected in Peer lists, each application now is all the mode routing with oneself, is not sought unity of standard, effect is uneven.It is existing
Some P2P routings are also the routing of application layer, it is impossible to the situation of sensing network, therefore can not be realized to the excellent of network transmission
Change.Cause settlement between different carriers flow big, expense remains high.
The target of IETF (Internet Engineering Task Force) ALTO working groups is design and definition one
Individual application layer traffic optimization service to provide network related information support for application, to realize that preferably initial peer node is selected
Select.ALTO services can get the network information of operator and content service provider, and equilibrium considers maximum bandwidth, minimum cross-domain stream
The factors such as amount, minimum user overhead information are optimized to routing.Main is exactly to be optimized from Peer selections, is supported in service end
With reference to various resources and strategy generating optimum results, then go to use to client, allow the Peer selected to meet underlying network as far as possible
The strategy of network topological sum operator.It is exactly to be grouped the main frame in network according to topological sum strategy to implement, then
The cost between each group is defined according to topological sum strategy, cost it is small be designated prioritizing selection object.
ALTO working groups consider that the application supported includes BT, P2P, CDN (Content Delivery Network, content
Transmission network), mirror image selection etc..Rational point is selected in customer-side, such as closer to the distance, the network bandwidth is high, can faster more
The desired content of stable acquisition, lifts Consumer's Experience.
At this stage ALTO consider use it is mostly be single ISP (Internet Service Provider) some network
An ALTO server is used uniformly to instruct all terminal requests.Because ALTO server is in PID
(Provider-defined Network Location identifier, the network location identifier that supplier defines) network
It is outside, it is not easy to get the accurate network information in each PID networks, the network information for causing ALTO server to be known is inadequate
Accurately and completely, so as to have impact on the accuracy of cost information.If multiple ISP situation, communication network information and strategy
More difficult, information is more imperfect known to ALTO server.The tutorial message provided ALTO clients is thus provided
It is not accurate enough, influence the accuracy of selection result.On the technology of Direct Communication between existing ALTO server, if ALTO takes
Business device is directly deployed to PID network internals, then requires to be interconnected between ALTO server, configuration complexity and hardware cost
It is high.
The content of the invention
, can be complete the technical problem to be solved in the present invention is to provide a kind of method and system for realizing application layer transmission optimization
The network information and cost information of kind ALTO server, ALTO services are provided for catenet.
In order to solve the above technical problems, a kind of method for realizing application layer transmission optimization of the present invention, including：
It is arranged on application layer transmission optimization (ALTO) meter in network location identifier (PID) network that each supplier defines
The network information and corresponding strategies of PID networks where device is collected are calculated, the network information being collected into and corresponding strategies are sent to institute
The ALTO server of category；
The ALTO calculators receive the network letter for the PID networks under ALTO server that the ALTO server is sent
Breath and strategy, according to the strategy and the routing iinformation inquired, PID networks reach ALTO server where itself is calculated respectively
Under other PID networks cost information, the cost information is sent to ALTO server.
Further, the ALTO calculators are simplified ALTO server, relative to ALTO server, ALTO calculators
Service to ALTO clients is not provided.
Further, in addition to：
The ALTO calculators receive the ALTO information requests that ALTO server is sent, and carry out information and calculating, will
Obtained ALTO information is sent to ALTO server.
Further, a kind of method for realizing application layer transmission optimization, including：
Application layer transmission optimization (ALTO) server receives and is arranged on what different suppliers defined under the ALTO server
The network information and corresponding strategies of the PID networks at the place that the ALTO calculators in network location identifier (PID) network are reported；
The ALTO server issues the network information and plan received to each ALTO calculators under the ALTO server
Omit, and receive the cost information that each ALTO calculators are sent.
Further, in addition to：
The ALTO server receives the request message of client, the ALTO into the PID networks where the client
Calculator sends ALTO information requests, asks ALTO information.
Further, in addition to：
ALTO client in PID networks where the ALTO server receives each ALTO calculators under the ALTO server
The ALTO requests that end is sent, ask to send response message to the ALTO clients according to the ALTO received.
Further, a kind of system for realizing application layer transmission optimization, including：Application layer transmission optimization (ALTO) server
And one or more ALTO calculators, the ALTO calculators are arranged on network location identifier (PID) net that supplier defines
In network, it is connected with the ALTO server, wherein：
The ALTO calculators, the PID network information and corresponding strategies where for collecting, by the network information being collected into
The ALTO server being connected is sent to corresponding strategies；And receive the PID under ALTO server from the ALTO server
The network information and strategy of network, according to the strategy and the routing iinformation inquired, PID networks are reached where calculating itself
The cost information of other PID networks under ALTO server, ALTO server is sent to by the cost information；
The ALTO server, is connected for the network information received and policy distribution to be given into the ALTO server
Each ALTO calculators, and receive the cost information that each ALTO calculators are sent.
Further, the ALTO server is multiple, and multiple ALTO servers are connected with each other, each ALTO server point
One or more ALTO calculators are not connected.
Further, a kind of application layer transmission optimization calculator, including：First collector unit, receiving unit and cost meter
Unit is calculated, wherein：
First collector unit, the network of network location identifier (PID) network that supplier where for collecting defines
Information and corresponding strategies, the network information being collected into and corresponding strategies are sent to affiliated ALTO server；
The receiving unit, the net for receiving the PID networks under ALTO server that the ALTO server is sent
Network information and strategy；
The cost calculating unit, for according to the strategy and the routing iinformation inquired, itself place to be calculated respectively
PID networks reach the cost information of other PID networks under ALTO server, and the cost information is sent into ALTO services
Device.
Further, in addition to the second collector unit, wherein：
The receiving unit, is additionally operable to receive the ALTO information requests that ALTO server is sent；
Second collector unit, for after the receiving unit receives ALTO information requests, carrying out information
And calculate, obtained ALTO information is sent to ALTO server.
Further, a kind of application layer transmission optimization server, including：Receiving unit and transmitting element, wherein：
The receiving unit, for receiving the network location identifier that different suppliers define that is arranged under ALTO server
(PID) network information and corresponding strategies of the PID networks where each ALTO calculators that each ALTO calculators in network are reported,
And receive the cost information that each ALTO calculators are sent；
The transmitting element, is received for issuing the receiving unit to each ALTO calculators under the ALTO server
The network information and strategy.
Further, the receiving unit, is additionally operable to receive the request message of client；
The transmitting element, is additionally operable to the ALTO calculators into the PID networks where the client and sends ALTO letters
Breath request, asks ALTO information.
In summary, the present invention has the advantages that：
(1) ALTO calculators are defined, and are serviced by the communication between ALTO server and ALTO calculators to ALTO
Device provides the network information, corresponding strategies and cost information etc., because ALTO calculators do not require to provide service to ALTO clients,
So processing requirement is low, it is more cost-effective than ALTO server, it might even be possible to directly to be realized on data equipment, such as BRAS/SR；
(2) network information and strategy where each ALTO calculators know oneself inside PID, are sent to ALTO services
Device, such ALTO server finally obtains the information of whole overlay networks, the net obtained compared to the ALTO server outside PID
Network information is more accurate；
(3) the ALTO calculators inside PID can accurately know this PID to other PID routing iinformation and corresponding strategies,
So according to routing iinformation and corresponding strategies calculation cost information, the method directly calculated compared to ALTO server outside PID is more
Stick on nearly real network topology；
(4) in case of expansion, further network extension is carried out by way of multiple ALTO servers are interconnected.It is this
Dispositions method is catenet, and even across ISP network, there is provided a kind of method of integral deployment ALTO server.In ALTO clothes
The network information transmitted between business device or between ALTO calculators and ALTO server, can be PID and its under the consideration of secrecy
Comprising the inside network segment abstract network information, the ISP specific network information is not revealed.
Brief description of the drawings
Fig. 1 is the schematic diagram of ALTO server and the usage scenario of ALTO calculators in the present invention；
Fig. 2 is the flow chart for the method that ALTO is realized in the present invention；
Fig. 3 is the schematic diagram of the extended scene of ALTO server and ALTO calculators in the present invention；
Fig. 4 is the Organization Chart of the ALTO computers in the present invention；
Fig. 5 is the Organization Chart of the ALTO server in the present invention.
Embodiment
A kind of ALTO server of simplification is referred to as ALTO calculators defined in present embodiment, and defines ALTO server
Communication between ALTO calculators, existing issue is solved by ALTO server and ALTO calculators cooperation deployment.Pass through
Set up interconnecting between ALTO server and ALTO calculators and come communication network information and cost information, improve ALTO services
The database information of device, provides for terminal selective listing and more accurately sorts.According to this extended scene provided and derived, increase
Plus universality.
ALTO calculators：It is a kind of ALTO server of simplification.Simplified is that ALTO server is provided ALTO clients
The function of service, that is, ALTO calculators do not provide the function to ALTO client services.
Communication function between support present embodiment is defined simultaneously ALTO calculators and ALTO server.Other functions
It is identical with ALTO server, the especially computing function of ALTO server.
ALTO calculators are set in each PID network internals, for collecting network information and calculation cost information.ALTO is counted
Calculate device and do not provide service to ALTO clients.ALTO server is set on higher network layer, this ALTO server and
Each ALTO calculators set up mutually connection, and provide service to all ALTO clients of administrative PID network internals.ALTO is calculated
Device is responsible for the network information and corresponding strategies of PID networks where collecting it, then informs the network information and corresponding strategies
ALTO server, ALTO server issues the network information and strategy to all ALTO calculators being attached thereto again.ALTO is calculated
PID network of the device with reference to belonging to strategy and routing iinformation etc. calculate oneself and is believed cost to the cost information of other PID networks
Breath sends ALTO server to.Various strategies, jointed with network information and cost information pair can also be configured in ALTO server
ALTO clients provide service.
In the deployment of extension, deployment way above-mentioned can be extended, be exactly multiple ALTO servers it
Between interconnected, the information communicated with one another include the network information, cost information and strategy.
The performance to the present invention is described in detail below in conjunction with the accompanying drawings.
Fig. 1 is a scene of ALTO server and ALTO calculator application methods in present embodiment.
It is PID1, PID2 and PID3 respectively as Fig. 1 is shown with 3 PID.Represent 3 different network areas.Each PID
There is an ALTO calculator for being responsible for the PID networks in network, be respectively ALTO calculators 1, the and of ALTO calculators 2 in figure
ALTO calculators 3, have one to be used to provide client the ALTO ALTO servers of service on ALTO calculators.Each
Connection is set up between ALTO calculators and ALTO server two-by-two, this connection can be TCP connections (being not limited to TCP connections)
Relation, intercommunication network information and cost information between ALTO server and ALTO calculators.3 PID nets are only described in Fig. 3
The situation of network, by that analogy, in the case of multiple PID networks can be completed, ALTO calculators and ALTO in each PID networks
Server is interconnected, and is not intended to limit PID network numbers.
In display network design, ALTO calculators can be undertaken by BRAS/SR equipment.
Fig. 2 is the flow chart for the method that ALTO is realized in present embodiment, due to ALTO calculators and ALTO server it
Journey that inter-drain is through-flow is consistent, only illustrates workflow with two of which ALTO calculators and an ALTO server, including：
Step 201：The network information of PID1 networks where the collection of ALTO calculators 1 oneself and local corresponding strategies hair
ALTO server is given, transmission content also includes pid information as defined in ALTO agreements；
Optionally, the corresponding strategies of transmission are local distinctive strategy, such as operator's hobby etc..
Step 201 '：The network information and local corresponding strategies of PID2 networks where the collection of ALTO calculators 2 oneself
ALTO server is sent to, transmission content also includes pid information as defined in ALTO agreements；
Optionally, the corresponding strategies of transmission are local distinctive strategy, such as operator's hobby etc..
Step 202：ALTO server is received after the network information of each ALTO calculator, issues all PID networks
The network information and strategy are to the ALTO calculators 1 for setting up connection therewith；
Here the network information of the PID networks sent just contains the network of the ignorant PID2 networks of ALTO calculators 1
The strategy of information and PID2 network internals.In addition, strategy is further included in the overall control directly configured in ALTO server
Strategy.
Step 202 '：ALTO server is received after the network information of each calculator, issues the network of all PID networks
Information and strategy are to the ALTO calculators 2 for setting up connection therewith；
Here the network information of the PID networks sent just contains the network of the ignorant PID1 networks of ALTO calculators 2
The strategy of information and PID1 network internals.In addition, strategy is further included in the overall control directly configured in ALTO server
Strategy.
Step 203：ALTO calculators 1 are received after the network information and strategy of PID2 networks, by inquiring PID2 networks
Dependent routing information combination policy calculation go out PID1 networks to the cost information of PID2 networks；
Step 203 '：ALTO calculators 2 are received after the network information and strategy of PID1 networks, by inquiring PID1 networks
Dependent routing information combination policy calculation go out PID2 networks to the cost information of PID1 networks；
Step 204：ALTO calculators 1 send PID1 networks to the cost information of PID2 networks to ALTO server；
Step 204 '：ALTO calculators 2 send PID2 networks to the cost information of PID1 networks to ALTO server；
Step 205：ALTO clients send ALTO requests to ALTO server；
Step 206：ALTO server receives the request message of client, and ALTO letters are sent to specified ALTO calculators
Breath request；
Specifically made requests on to which ALTO calculator, be ALTO server according to the ALTO that request is sent in step 205
Client belongs to the administrative PID networks of which ALTO calculator to determine.Such as sending the ALTO clients of ALTO requests is
In the range of PID1 networks, then the request for specifying ALTO information is sent to ALTO calculators 1.
ALTO server finds, without related server info, just to perform the step.
Step 207：ALTO calculators 1 are collected relevant information and entered after the ALTO information requests of ALTO server are received
Row is calculated；
In this step, the ALTO calculator ability for only receiving ALTO information requests is handled.
Step 207 '：ALTO calculators 2 are collected relevant information and entered after the ALTO information requests of ALTO server are received
Row is calculated；
In this step, the ALTO calculator ability for only receiving ALTO information requests is handled.
Step 208：ALTO information is sent to ALTO server by ALTO calculators；
Which calculator response is wherein carried out by, is to see in above-mentioned 207 or 207 ' step it is which ALTO calculator undertakes
Calculating determine, that is, which calculator have received the ALTO information requests of ALTO server, which is calculated and should
Answer.
Step 209：ALTO server sends response message to client according to the ALTO requests received.
Supplementary notes, step 201 and 201 ' is up to 204 and 204 ', and step 207 and 207 ' is without contexts, each pair
Step does not have context requirement.Step 206 to 208 step is optional step, can not possess these steps, corresponding ALTO meters
Device is calculated also not require that such request must be supported.In the case where ALTO calculators are not supported to specify ALTO requests, in 205 steps
After rapid, ALTO server receives ALTO requests, if not asking required information, ALTO server can be assisted according to ALTO
View requires that directly performing step 209 carries out response.Even if ALTO calculators are supported to specify the request of ALTO information, ALTO server
Oneself it can also determine whether continue to make requests on to ALTO calculators in the case of no client request information.
Fig. 3 is an extended scene of present embodiment, including 6 PID, is PID1 to PID6 respectively, represents 6 not
Same network area.There is an ALTO calculator for being responsible for the PID networks in each PID networks, respectively ALTO calculators 1 are arrived
ALTO calculators 6.2 ALTO servers, wherein ALTO server 1 are responsible for PID1, PID2 and PID3 network range, are responsible
In the range of ALTO clients provide service；It is responsible and ALTO server 2 is responsible for PID3, PID4 and PID5 network range
In the range of ALTO clients provide service.
ALTO server 1 and ALTO server 2 are respectively two between the ALTO calculators in the PID networks in administrative area
Two set up connection, while this 2 ALTO servers also set up connection, this connection (can be not limited to TCP companies for TCP connections
Connect) relation, intercommunication network information and cost information between server and calculator, server and server.Only described in Fig. 3
Each ALTO server is responsible for the situation of 3 PID networks, by that analogy, can be responsible for multiple PID by each ALTO server
Scope.
In addition, the situation of 2 ALTO servers is only described in Fig. 3, can be so that the rest may be inferred, in multiple ALTO servers
Situation can also be met.ALTO calculators and ALTO server in namely each PID networks are interconnected, and are not intended to limit PID
Network number.Interconnected between each ALTO server, the number of ALTO server is not limited.
Workflow such as Fig. 2 descriptions in scene shown in Fig. 3 between ALTO server and ALTO calculators, ALTO server
Between be used for interactive network information, cost information and strategy.
In supplementary notes, Fig. 1 application methods, multiple ALTO servers of equivalence can also be extended to, are counted respectively with ALTO
Calculate device be connected, such redundancy deployment come ensure service stability.
And simplified ALTO server is mentioned in present embodiment, that is, it is ALTO calculators, not to ALTO client
The function of service is held, ALTO calculator information is not provided in ALTO server discovery procedure, is only provided for ALTO client
The ALTO server information that end provides service is that can be achieved.The optional specified ALTO information for supporting ALTO server to send please
Ask.
Net in present embodiment between ALTO server and ALTO calculators, between ALTO server and ALTO server
The transmission of network information and cost information can according to the network information and cost information as defined in ALTO agreements message format actively
Send or by request send, can also these self-defined information exchanges message.
Present embodiment describes a kind of ALTO server of simplification, that is, ALTO calculators, ALTO services are described
The method that device and ALTO calculators coordinate, and this method application scenarios and workflow.It is mainly characterized by PID networks
Portion sets ALTO calculators, the network information and strategy of PID networks where can more accurately getting, including arrives other
Ad hoc network topology etc. in the accurate routing iinformation and this PID networks of PID networks, according to the cost information of these information acquisitions more
Plus meet real network.It is more more economical than ALTO server because ALTO calculators need not provide ALTO clients service.This
The method that embodiment is cooperated jointly using ALTO calculators and ALTO server can serve larger network, even
Across the ALTO server application deployment of ISP network.
As shown in figure 4, present embodiment additionally provides a kind of ALTO calculators, including：First collector unit, receiving unit
And cost calculating unit, wherein：
First collector unit, the network information of network location identifier (PID) network that supplier where for collecting defines
And corresponding strategies, the network information being collected into and corresponding strategies are sent to affiliated ALTO server；
Receiving unit, for receive ALTO server transmission the PID networks under ALTO server the network information and
Strategy；
Cost calculating unit, for according to strategy and the routing iinformation inquired, PID networks where itself is calculated respectively to be arrived
The cost information of other PID networks under up to ALTO server, ALTO server is sent to by cost information.
ALTO calculators also include the second collector unit, wherein：
Receiving unit, is additionally operable to receive the ALTO information requests that ALTO server is sent；
Second collector unit, will for after receiving unit receives ALTO information requests, carrying out information and calculating
Obtained ALTO information is sent to ALTO server.
As shown in figure 5, present embodiment additionally provides a kind of ALTO server, including：Receiving unit and transmitting element, its
In：
Receiving unit, for receiving the network location identifier that different suppliers define that is arranged under ALTO server
(PID) network information and corresponding strategies of the PID networks where each ALTO calculators that each ALTO calculators in network are reported,
And receive the cost information that each ALTO calculators are sent；
Transmitting element, the network for being received to transmission/reception unit under each ALTO calculators under the ALTO server is believed
Breath and strategy.
Receiving unit, is additionally operable to receive the request message of client；
Transmitting element, the ALTO calculators being additionally operable into the PID networks where client send ALTO information requests, please
Seek ALTO information.
One of ordinary skill in the art will appreciate that all or part of step in the above method can be instructed by program
Related hardware is completed, and described program can be stored in computer-readable recording medium, such as read-only storage, disk or CD
Deng.Alternatively, all or part of step of above-described embodiment can also use one or more integrated circuits to realize, accordingly
Each device/module/unit in ground, above-described embodiment can be realized in the form of hardware, it would however also be possible to employ software function mould
The form of block is realized.The present invention is not restricted to the combination of the hardware and software of any particular form.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (12)
1. a kind of method for realizing application layer transmission optimization, it is characterised in that including：
The application layer transmission optimization ALTO calculators being arranged in the network location identifier PID networks that each supplier defines are collected
The network information and corresponding strategies of place PID networks, the network information being collected into and corresponding strategies are sent to affiliated ALTO
Server；
The ALTO calculators receive the PID networks under ALTO server that the ALTO server is sent the network information and
Strategy, according to the strategy and the routing iinformation inquired, PID networks are reached under ALTO server where itself is calculated respectively
The cost information of other PID networks, ALTO server is sent to by the cost information.
2. the method as described in claim 1, it is characterised in that the ALTO calculators are simplified ALTO server, relatively
In ALTO server, ALTO calculators do not provide the service to ALTO clients.
3. the method as described in claim 1, it is characterised in that also include：
The ALTO calculators receive the ALTO information requests that ALTO server is sent, and carry out information and calculating, will obtain
ALTO information be sent to ALTO server.
4. a kind of method for realizing application layer transmission optimization, it is characterised in that including：
Application layer transmission optimization ALTO server receives the network position that different suppliers define that is arranged under the ALTO server
Put the network information and corresponding strategies of the PID networks at the place that the ALTO calculators in mark PID networks are reported；
The ALTO server issues the network information received and strategy to each ALTO calculators under the ALTO server, and
Receive the cost information that each ALTO calculators are sent.
5. method as claimed in claim 4, it is characterised in that also include：
The ALTO server receives the request message of client, and the ALTO into the PID networks where the client is calculated
Device sends ALTO information requests, asks ALTO information.
6. method as claimed in claim 5, it is characterised in that also include：
ALTO clients hair in PID networks where the ALTO server receives each ALTO calculators under the ALTO server
The ALTO requests sent, ask to send response message to the ALTO clients according to the ALTO received.
7. a kind of system for realizing application layer transmission optimization, it is characterised in that including：Application layer transmission optimization ALTO server with
And one or more ALTO calculators, the ALTO calculators are arranged in the network location identifier PID networks that supplier defines,
It is connected with the ALTO server, wherein：
The ALTO calculators, the PID network information and corresponding strategies where for collecting, by the network information being collected into and phase
Close strategy and be sent to the ALTO server being connected；And receive the PID networks under ALTO server from the ALTO server
The network information and strategy, according to the strategy and the routing iinformation that inquires, PID networks where calculating itself reach ALTO clothes
The cost information for other PID networks being engaged under device, ALTO server is sent to by the cost information；
The ALTO server, for by the network information received and policy distribution give that the ALTO server is connected it is each
ALTO calculators, and receive the cost information that each ALTO calculators are sent.
8. system as claimed in claim 7, it is characterised in that the ALTO server is multiple, multiple ALTO server phases
Connect, each ALTO server connects one or more ALTO calculators respectively.
9. a kind of application layer transmission optimization ALTO calculators, it is characterised in that including：First collector unit, receiving unit and generation
Valency computing unit, wherein：
First collector unit, the network information of network location identifier PID networks that supplier where for collecting defines and
Corresponding strategies, the network information being collected into and corresponding strategies are sent to affiliated ALTO server；
The receiving unit, the network letter for receiving the PID networks under ALTO server that the ALTO server is sent
Breath and strategy；
The cost calculating unit, for according to the strategy and the routing iinformation inquired, PID nets where itself to be calculated respectively
Network reaches the cost information of other PID networks under ALTO server, and the cost information is sent into ALTO server.
10. ALTO calculators as claimed in claim 9, it is characterised in that also including the second collector unit, wherein：
The receiving unit, is additionally operable to receive the ALTO information requests that ALTO server is sent；
Second collector unit, for after the receiving unit receives ALTO information requests, carrying out information and meter
Calculate, obtained ALTO information is sent to ALTO server.
11. a kind of application layer transmission optimization ALTO server, it is characterised in that including：Receiving unit and transmitting element, wherein：
The receiving unit, for receiving the network location identifier PID that different suppliers define that is arranged under ALTO server
The network information and corresponding strategies of PID networks where each ALTO calculators that each ALTO calculators in network are reported, and connect
Receive the cost information that each ALTO calculators are sent；
The transmitting element, for issuing the net that the receiving unit is received to each ALTO calculators under the ALTO server
Network information and strategy.
12. ALTO server as claimed in claim 11, it is characterised in that：
The receiving unit, is additionally operable to receive the request message of client；
The transmitting element, the ALTO calculators transmission ALTO information being additionally operable into the PID networks where the client please
Ask, ask ALTO information.
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| CN201210251121.4A CN102811256B (en) | 2012-07-19 | 2012-07-19 | A kind of method and system for realizing application layer transmission optimization |
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| CN201210251121.4A CN102811256B (en) | 2012-07-19 | 2012-07-19 | A kind of method and system for realizing application layer transmission optimization |
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| CN106686034B (en) * | 2015-11-10 | 2019-12-06 | 中国电信股份有限公司 | CDN scheduling enhancement method, device and system |
| CN117201487A (en) * | 2022-05-31 | 2023-12-08 | 华为技术有限公司 | Communication method based on ALTO protocol and related device |
| CN117376264A (en) * | 2022-06-30 | 2024-01-09 | 华为技术有限公司 | Information acquisition method, device, system, storage medium and computer program product |
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| EP2461547A1 (en) * | 2010-12-01 | 2012-06-06 | Juniper Networks, Inc. | Dynamically generating application-layer traffic optimization protocol maps |
| CN102546820A (en) * | 2012-02-16 | 2012-07-04 | 华为技术有限公司 | Transmission optimization method, and mapping information storage method, device and system |
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| EP2461547A1 (en) * | 2010-12-01 | 2012-06-06 | Juniper Networks, Inc. | Dynamically generating application-layer traffic optimization protocol maps |
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