CN106506719A - The collocation method of distribution policy and configuration system in name data network - Google Patents
The collocation method of distribution policy and configuration system in name data network Download PDFInfo
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- CN106506719A CN106506719A CN201610977432.7A CN201610977432A CN106506719A CN 106506719 A CN106506719 A CN 106506719A CN 201610977432 A CN201610977432 A CN 201610977432A CN 106506719 A CN106506719 A CN 106506719A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L61/00—Network arrangements, protocols or services for addressing or naming
- H04L61/30—Managing network names, e.g. use of aliases or nicknames
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- 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
- H04L41/0893—Assignment of logical groups to network elements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/10—Flow control; Congestion control
- H04L47/20—Traffic policing
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Abstract
The collocation method of distribution policy and configuration system in name data network is embodiments provided, the method includes：The first packet is obtained, wherein, the first packet includes：First content and the first name of first content.According to the first name, in default at least two Naming resolutions mode, the first Naming resolution mode corresponding with the first name is determined.According to the first Naming resolution mode, the first name is parsed, Naming resolution result is obtained.According to Naming resolution result, the first name is mated with resource, is obtained resource matched result, wherein, resource is used for the distribution for supporting the second packet, and the second packet includes：First packet and/or the data of the first data packet request.According to resource matched result, the second packet is distributed in name data network.Present invention achieves in name data network distribution policy configurable, it is to avoid the repeating of network environment is built, and has saved Internet resources.
Description
Technical field
The present invention relates to information network technique field, more particularly to names the collocation method of distribution policy in data network
And configuration system.
Background technology
With Internet technology with application develop rapidly and Internet user rapid growth, broadband, content
The theme of internet development is had become with personalization.Traditional IP (Internet Protocol, interconnection between network
Agreement) technology cannot gradually tackle huge volumes of content injection network environment, especially show huge volumes of content transmission, information quality protect
The lance of calculating, storage and transmittability that the access demand of card and number in terms of 10,000,000,000 is can be provided with telecommunications industry infrastructure
Shield.
For above-mentioned challenge, various countries have carried out the research to future network system and key technology one after another.These researchs master
To be based on two kinds of thinkings to launch：One is from existing IP network basic structure smooth evolution " evolved " technology path, " evolution
Type " route adopts " patch installing " method, and existing internet architecture and network operation system are changed accordingly
And supplement, to strengthen the content distribution ability of existing internet.Two is " revolution type " skill for the network architecture for building brand-new
Art route.Following ICN (Information Centric Networking, the network system) centered on information is to build entirely
The main representative of new network architecture " revolution type ", ICN are established by way of replacing host address with the content for identifying
Based on content name addressing and the new network framework of route, extensive concern is obtained, wherein, NDN (Named Data
Networking, names content network) it is the scheme that wherein the most typically represents.
Compared with prior art, addressing routes of the NDN based on content name is devoted to changing existing network communication mode,
Make network communication mode from the existing forwarding based on end address, be changed into the forwarding based on resource name, to a certain extent
The problems such as solving route extensibility, data distribution efficiency.As NDN schemes are still in evolution process, in its existing scheme
Distribution policy not yet reaches unified standard, when distribution policy changes, needs to build again network environment.Cause
This utilizes existing NDN distribution policies, when NDN network experiments are carried out with exploitation NDN running environment, changes in distribution policy
During change, repeated construction network environment problem can be run into, this frequently repeated construction not only increase carry out NDN network experiments with
The time cycle of exploitation NDN running environment, is more the waste to Internet resources.
Content of the invention
The purpose of the embodiment of the present invention is to provide the collocation method of distribution policy and configuration in a kind of name data network
System, to realize that not repeated construction network environment has saved Internet resources when distribution policy changes.Particular technique side
Case is as follows：
The collocation method of distribution policy in a kind of name data network, including：
The first packet is obtained, wherein, first packet includes：First content and the first life of the first content
Name；
According to the described first name, in default at least two Naming resolutions mode, it is right with the described first name to determine
The the first Naming resolution mode that answers；
According to the first Naming resolution mode, the described first name is parsed, Naming resolution result is obtained；
According to the Naming resolution result, the described first name is mated with resource, is obtained resource matched result, its
In, the resource is used for the distribution for supporting the second packet, and second packet includes：First packet and/or the first number
Data according to bag request；
According to the resource matched result, second packet is distributed in name data network.
Optionally, before the first packet of the acquisition, methods described also includes：
Obtain the second content；
In default at least two naming method, a kind of naming method is determined, wherein, default at least two life
Name mode includes：In Hierarchical name, certainly proof name and attribute names at least two；
Second content is named by the naming method for determining, obtains the second name, and store described second
Name and the first corresponding relation, wherein, first corresponding relation is for the described second name with second content in the life
Corresponding relation in the network node of name data network.
Optionally, before the first packet of the acquisition, methods described also includes：
Obtain the second content；
Obtain and according to the instruction by user input, generate self-defined naming method；
By the self-defined naming method, second content is named, obtains the 3rd name, and store described
3rd name and the second corresponding relation, wherein, second corresponding relation is for the described 3rd name with second content in institute
State the corresponding relation in the network node of name data network.
Optionally, obtain and according to the instruction by user input described, after generating self-defined naming method, the side
Method also includes：
According to the self-defined naming method, the self-defined analysis mode of the parsing self-defined naming method is generated；
The self-defined naming method and the self-defined analysis mode are stored to predeterminated position.
Optionally, described according to the Naming resolution result, the described first name is mated with resource, is obtained resource
Matching result, including：
According to the Naming resolution result, by default basic primitive and default matched rule, order to described first
Name carries out the coupling of resource, obtains the resource matched result, and wherein, the default matched rule includes：The length of name
And/or character content, the resource includes：The computing resource of network node, storage resource and information resources.
Optionally, the described first name is mated with resource, is provided according to the Naming resolution result described
After the matching result of source, methods described also includes：
The Naming resolution result and the resource matched result are stored in default registration table.
Optionally, described storage the Naming resolution result and the resource matched result in default registration table it
Afterwards, methods described also includes：
In default at least one cache policy, a kind of cache policy is determined, wherein, described default at least one slow
Depositing strategy includes：One or more in single network node cache policy, centralized cache policy and distributed buffer memory strategy；
According to the cache policy for determining, the content in the default registration table is cached.
Optionally, described according to the resource matched result, second packet is carried out in name data network
Distribution, including：
According to the resource matched result, the 3rd corresponding relation is obtained, wherein, the 3rd corresponding relation is described first
Name the corresponding relation in the network node of the name data network with second packet；
According to the resource matched result and the 3rd corresponding relation, dispensing action is generated；
Using the dispensing action, second packet is distributed between network nodes.
Optionally, described according to the resource matched result, second packet is carried out in name data network
Distribution, including：
In the more new content that the first content is the name data network, according to the resource matched result,
When second packet is the first packet, distribute first packet to other network nodes, so that other nets described
Network node distributes first packet, and other network nodes according to first packet updates, wherein, described its
His network node is the one or more network nodes in the name data network in addition to current network node；
Accordingly, second packet is entered in name data network according to the resource matched result described
After row distribution, methods described also includes：
According to the first content, the current network node is updated.
The configuration system of distribution policy in a kind of name data network, including：
Packet acquisition module, for obtaining the first packet, wherein, first packet includes：First content and
First name of the first content；
Analysis mode determining module, for according to the described first name, in default at least two Naming resolutions mode,
Determine the first Naming resolution mode corresponding with the described first name；
Parsing module, for being parsed to the described first name according to the first Naming resolution mode, is named
Analysis result；
Matching module, for according to the Naming resolution result, the described first name being mated with resource, being provided
Source matching result, wherein, the resource is used for the distribution for supporting the second packet, and second packet includes：First data
Bag and/or the data of the first data packet request；
Distribution module, for according to the resource matched result, second packet being entered in name data network
Row distribution.
The collocation method of distribution policy and configuration system in name data network provided in an embodiment of the present invention, by configuring
Different Naming resolution modes and resource, it is achieved that in name data network, distribution policy is configurable.Can realize in distribution
When strategy changes, not repeated construction network environment has saved time cost and Internet resources.Certainly, implement the present invention's
Arbitrary product or method must be not necessarily required to while reaching all the above advantage.
Description of the drawings
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
Accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Schematic flow sheets of the Fig. 1 for the collocation method of distribution policy in the name data network of the embodiment of the present invention；
A kind of schematic diagrames of the Fig. 2 for the configuration system of distribution policy in the name data network of the embodiment of the present invention；
Building-block of logic of the Fig. 3 for the collocation method of distribution policy in the NDN of the embodiment of the present invention；
Schematic flow sheets of the Fig. 4 for the method for configuring distribution policy according to packet of the embodiment of the present invention；
Another kind of schematic diagrames of the Fig. 5 for the configuration system of distribution policy in the name data network of the embodiment of the present invention.
Specific embodiment
Accompanying drawing in below in conjunction with the embodiment of the present invention, to the embodiment of the present invention in technical scheme carry out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiment.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
As shown in figure 1, embodiments providing a kind of collocation method of distribution policy in name data network, bag
Include：
S101, obtains the first packet, and wherein, the first packet includes：First content and the first name of first content.
The first packet is obtained, can be to obtain newly-generated packet in current network node, or first
When packet enters current network node, the first packet is obtained.First packet is the interest bag Interest in NDN
Message or content bag Content Object.First content is the data included in the first packet, and first content is to meet
The arbitrary data of the embodiment of the present invention.Specifically, when the first packet is interest bag, first content is solicited message, first
When packet is content bag, first content is content-data.
S102, according to the first name, in default at least two Naming resolutions mode, determines corresponding with the first name
First Naming resolution mode.
According to the first name, the naming method of name first content is determined, in default at least two Naming resolutions mode
In, select and generate Naming resolution mode corresponding with the naming method of name first content.
S103, according to the first Naming resolution mode, parses to the first name, obtains Naming resolution result.
S104, according to Naming resolution result, the first name is mated with resource, is obtained resource matched result, wherein,
Resource is used for the distribution for supporting the second packet, and the second packet includes：First packet and/or the number of the first data packet request
According to.
Resource is used for the distribution of the data for supporting the first packet and/or the first data packet request, including：Computing resource,
Storage resource and Internet resources.
S105, according to resource matched result, the second packet is distributed in name data network.
By the resource for matching, the second packet is distributed in name data network, is completed in NDN and is distributed
The configuration of strategy.
In existing NDN, NDN once builds and completes, and its Naming resolution mode is just fixed as one kind.In present invention enforcement
In example, different Naming resolution modes can be configured, while corresponding resource can be configured, it is achieved thereby that name data network
Middle distribution policy configurable.When distribution policy changes, not repeated construction network environment, it is to avoid because repeated construction is led
The NDN network experiments of cause were increased with the construction cycle of NDN running environment, had saved time cost and Internet resources.
Optionally, in the method for the embodiment of the present invention, before S101, the method also includes：
Step one, obtains the second content.
Instruction is generated according to content in current network node and generates the second content, then obtain the second content of generation.
For example, in current network node, when user's request obtains the picture of a green apple, system can produce content and generate instruction,
Instruction is generated according to the content and can generate corresponding content (data).
Step 2, in default at least two naming method, determines a kind of naming method, wherein, default at least two
Planting naming method includes：In Hierarchical name, certainly proof name and attribute names at least two.
In default at least two naming method, a kind of naming method is selected, can be to randomly select a kind of life herein
Name mode, or the selection instruction according to default name instruction or by user input, specific naming method is chosen, and
Generate the naming method.For example, in the NDN of test Hierarchical name, Hierarchical name is made a living in default name instruction, then internally
When appearance is named, the naming method Hierarchical name that chooses is given tacit consent to.
Step 3, is named to the second content by the naming method for determining, obtains the second name, and store the second life
Name and the first corresponding relation, wherein, the first corresponding relation is the network section of the second name and the second content in name data network
Corresponding relation in point.
The corresponding relation of storage name and content in the network node of name data network, facilitates other network nodes
Parsing to naming, while the distribution for data between network node provides foundation.
In NDN, a content needs to be named the content using naming method when generating first.Existing
In NDN, naming method is fixed, and in embodiments of the present invention, naming method can be configured, when needing using not
With naming method when, it is not necessary to build again network environment, it is only necessary to configure corresponding naming method.So as to save net
Network resource.
Optionally, in the name data network of the embodiment of the present invention in the collocation method of distribution policy, before S101,
The method also includes：
Step one, obtains the second content.
Step 2, obtains and according to the instruction by user input, generates self-defined naming method.
In embodiments of the present invention, self-defined naming method can be generated according to the instruction of user input, user can tie
Close existing Hierarchical name, name and three kinds of life modes of attribute names from proof, by corresponding instruction, generate self-defined name
Mode.Network environment is built again need not, convenient research difference impact of the naming method to NDN.
Step 3, by self-defined naming method, is named to the second content, obtains the 3rd name, and store the 3rd
Name and the second corresponding relation, wherein, the second corresponding relation is the network of the 3rd name and the second content in name data network
Corresponding relation in node.
In embodiments of the present invention, additionally it is possible to according to the instruction of user input, self-defined naming method is generated.Generation is made by oneself
Adopted naming method, is conducive to carrying out NDN network experiments with exploitation NDN running environment, and user can test different naming methods and exist
Using effect in NDN, without building network environment again, has saved time cost and Internet resources.
Optionally, simultaneously root is being obtained in the collocation method of distribution policy in the name data network of the embodiment of the present invention
According to the instruction by user input, after generating self-defined naming method, method also includes：
Step one, according to self-defined naming method, generates the self-defined analysis mode of the self-defined naming method of parsing.
Step 2, stores self-defined naming method and self-defined analysis mode to predeterminated position.
NDN is the network based on name work, after the second name is obtained, needs to parse the second name.According to
The self-defined naming method for naming second name used, generates the self-defined analysis mode for parsing the self-defined naming method.
Self-defined naming method and the storage of self-defined analysis mode are arrived predeterminated position simultaneously.The predeterminated position is to meet enforcement of the present invention
The optional position of example, optionally, by self-defined naming method and the storage of self-defined analysis mode in name model storehouse.Certainly order
Name model also saving default at least two naming method and default at least two Naming resolutions mode in storehouse, by name
Multiple naming policies and multiple Naming resolution strategies can be supported in model storehouse, at the same when the lookup of corresponding relation is carried out, can
To support multiple search strategies, and name model storehouse be updated.
In embodiments of the present invention, self-defined analysis mode is generated, is conducive to carrying out NDN network experiments with exploitation NDN fortune
Row environment, user can test using effect of the different naming methods in NDN, without building again network environment, save
Time cost and Internet resources.
Optionally, in the name data network of the embodiment of the present invention in the collocation method of distribution policy, S104 includes：
According to Naming resolution result, by default basic primitive and default matched rule, the first name is provided
The coupling in source, obtains resource matched result, and wherein, default matched rule includes：The length and/or character content of name, money
Source includes：The computing resource of network node, storage resource and information resources.
Basic primitive is any primitive for meeting the embodiment of the present invention, act as according to Naming resolution result, is name
Match somebody with somebody resource.Name is mated with resource, is the configuration in order to support subsequent distribution strategy.For naming match information resource,
For associating data to be distributed and being distributed to which network node.For naming matching primitives resource, to be distributed for determining
The distribution flow of data.For name coupling storage resource, each item data generated during configuring for storage distribution strategy.
For example, name carries out mating being specifically as follows with resource：When current network node has the data of content requests, by content requests
Data and content set up mapping relations, while set up current network node and send the content network node between mapping close
System, while the corresponding dispensing action of coupling, the data of above-mentioned generation is stored, to facilitate subsequent calls.
When first name is mated with resource, default matched rule includes：The length of name, character content or its
His self-defined form.Due to can be by User Defined, when this can be associated with resource matched to the mode that parsed of name
The computing resource of network node, storage resource and information resources can be recorded by configurability by the form of element,
Resource and element can be combined and edit operation when carrying out resource matched, to be adapted to self-defined analysis mode.
In embodiments of the present invention, name is mated with resource, is effectively supported the configuration of subsequent distribution strategy.
Optionally, in the name data network of the embodiment of the present invention in the collocation method of distribution policy, after S104,
The method also includes：
Storage Naming resolution result and resource matched result are in default registration table.
Incidence relation (mapping relations) after name is mated with resource can be recorded in registration table, additionally, registration
Mapping coupling in table can be arranged by User Defined, including：Mapping management, NDN and network section between content and name
Mapping relations, the mapping relations between name and network node between mapping relations and resource and name between point.Registration table number
Mesh, registration literary name section and registration table length can be arranged by User Defined.
In embodiments of the present invention, storage Naming resolution result and resource matched result are in default registration table, convenient
Search.
Optionally, in the name data network of the embodiment of the present invention in the collocation method of distribution policy, in storage name
After analysis result and resource matched result are in default registration table, the method also includes：
Step one, in default at least one cache policy, determines a kind of cache policy, wherein, default at least one
Planting cache policy includes：One kind or many in single network node cache policy, centralized cache policy and distributed buffer memory strategy
Kind.
Step 2, according to the cache policy for determining, caches to the content in default registration table.
After content in registration table is cached, self-defined caching can be generated by the instruction of user input with basis
Strategy, and utilize the self-defined cache policy, the content that cache user is specified.
In embodiments of the present invention, the content in registration table is cached, increased the reading efficiency of data.
Optionally, in the name data network of the embodiment of the present invention in the collocation method of distribution policy, S105 includes：
Step one, according to resource matched result, obtains the 3rd corresponding relation, and wherein, the 3rd corresponding relation is the first name
With corresponding relation of second packet in the network node of name data network.
Corresponding relation of first name with the second packet in the network node of name data network is obtained, is determined to which
One network node distributes the second packet.
Step 2, according to resource matched result and the 3rd corresponding relation, generates dispensing action.
Step 3, using dispensing action, the second packet is distributed between network nodes.
In embodiments of the present invention, the generation of dispensing action and configuration mode in distribution policy are given, it is achieved that in NDN
The configuration of distribution policy.
Optionally, in the name data network of the embodiment of the present invention in the collocation method of distribution policy, S105 includes：
When first content is the more new content for naming data network, according to resource matched result, in the second packet it is
During the first packet, distribute the first packet to other network nodes, so that other network nodes distribute the first packet, and root
Other network nodes are updated according to the first packet, wherein, other network nodes remove in data network current network node for naming
Outer one or more network nodes.
Accordingly, when first content is the more new content for naming data network, according to resource matched result, in the second number
According to bag for the first packet when, distribute the first packet to other network nodes, so that other network nodes distribute first data
Bag, and after updating other network nodes according to the first packet, the method also includes：
According to first content, current network node is updated.
In NDN, when existing distribution policy needs to change, such as add in default at least one Naming resolution mode
New Naming resolution mode is added, or increases default basic primitive and the content in default matched rule, can be according to this
The collocation method of the distribution policy of inventive embodiments, by the first packet delivery comprising more new content to other network nodes,
To complete the renewal of NDN, it is to avoid build again NDN, it is to avoid because caused by repeated construction, NDN network experiments run ring with NDN
The construction cycle in border increases, and has saved time cost and Internet resources.
It should be noted that the embodiment of the present invention name data network in distribution policy collocation method and configuration system
The network node being applied in NDN, then the all-network node in NDN be applied to the embodiment of the present invention name data network
The collocation method of middle distribution policy and configuration system.
Referring to Fig. 2, a kind of signals of the Fig. 2 for the configuration system of distribution policy in the name data network of the embodiment of the present invention
Figure, including：
Global identity entity identifies library module 201, name for the content of data storage bag and, storage name and data
Wrap the corresponding relation in entirely name data network NDN.
Naming resolution device module 202, for according to name and global identity entity mark library module, generate naming method and
Naming resolution mode, according to the Naming resolution mode to described name parse, and to described name carry out resource
Match somebody with somebody.
Existing NDN is different from, in existing NDN, network environment is once built and completed, Naming resolution mode and name
Mode is just fixed, unless built again network environment, can not otherwise be changed.In embodiments of the present invention, the overall situation can be passed through
Identity entity mark library module 201 generates Naming resolution mode and naming method, and the life for generating with Naming resolution device module 202
Name mode is not limited to Hierarchical name, names and three kinds of life modes of attribute names from proof, can be referred to according to the name of user input
Order, generates self-defined naming method.
Registry module 203, for storing Naming resolution result and resource matched result.
In registry module 203, registration table number, registration literary name section and registration table length can be arranged by User Defined.Note
The incidence relation (mapping relations) after mating is stored in volume table module 203, and the mapping coupling in registration table can be by user
Self-defined matched rule, including：Mapping management, the mapping relations between NDN and network node between content and name, resource
Mapping relations between network node between mapping relations and resource and name.
Action library module 204, for according to the instruction for forwarding interactive controls module, safeguarding and generating dispensing action.
Dispensing action refers to that data (content) transmission relation between network nodes, action library module 204 will can be divided
Start to be split, represented and combined.Action place is generated and the dispensing action of maintenance can carry out self-defined pipe by user
Reason, can be multiplexed, and can have multiple combination of actions to complete in dispensing action.
Interactive controls module 205 is forwarded, for according to the content in registry module and global identity entity home banking mould
Content in block, assigns instruction to action library module, so that action library module generates dispensing action, according to the dispensing action, complete
Into distribution of the packet between each network node.
In embodiments of the present invention, by the configuration to naming policy and resource, it is achieved that in NDN, distribution policy matches somebody with somebody
Put, without repeating to build network environment, flexibly can enter Mobile state to the distribution policy in the NDN that built and arrange and complete
The experiment and exploitation of multiple NDN network architectures.
Optionally, in the name data network of the embodiment of the present invention in the configuration system of distribution policy, the system is also wrapped
Include：
Primitive library module, for storing default basic primitive.
Store multiple basic primitive in primitive library module, Naming resolution device module 202 pairs name carry out resource
Timing, in default multiple basic primitive, chooses basic primitive corresponding with Naming resolution mode, for name and resource
Mated.Technical support is provided for name with mating for resource.
Optionally, in the name data network of the embodiment of the present invention in the configuration system of distribution policy, the system is also wrapped
Include：
Spatial cache module, for being cached the content in registry module 203.
Spatial cache module determines a kind of cache policy in default at least one cache policy, for by registration table
Content in module 203 is cached.Wherein, default at least one cache policy includes：Single network node cache policy, collection
One or more in Chinese style cache policy and distributed buffer memory strategy.Cache contents, caching duration and cache-time can simultaneously
Configured by user.Certainly spatial cache module can be specified to cache instruction with according to the cache instruction by user input
Content cached.
In embodiments of the present invention, the content in registration table is cached, increased the reading efficiency of data.
Optionally, in the name data network of the embodiment of the present invention in the configuration system of distribution policy, the system is also wrapped
Include：
Analytical algorithm library module, for storing the algorithm of naming method and the algorithm of Naming resolution mode.
The algorithm of naming method and the algorithm of Naming resolution mode is stored in analytical algorithm library module, convenient overall situation identity
The algorithm of the algorithm of naming method and/or Naming resolution mode is entered by entity identification library module 201 with Naming resolution device module 202
Row splits and combines, so as to generate self-defined naming method and/or self-defined analysis mode.
Optionally, in the name data network of the embodiment of the present invention in the configuration system of distribution policy, the global body
Part entity identification library module 201, including：
Content names submodule, for according to the naming method generated by Naming resolution device module, the content to packet
It is named.
In a network node, when new data packets are generated, need to be named the content of the new data packets.
Content names submodule to send information to Naming resolution device module, so that Naming resolution device module is in default naming method,
Select and generate the naming method that information is specified.Content name submodule names the content of new data packets by the naming method,
Obtain the name of new data packets content.Certainly, content name submodule can also be obtained and be instructed by the name of user input, pass through
Naming resolution device module generates self-defined naming method, it is possible to which self-defined naming method is saved as name model, with convenient
Subsequent calls.
The name of new data packets content and, the name of new data packets content and corresponding relation meeting of the new data packets in NDN
Store global identity entity mark library module 201.
Save in global identity entity mark library module 201 in NDN the name of the content of all packets and, Suo Youming
Corresponding relation of the name with packet in whole NDN.And global identity entity mark library module 201 can be updated.
Optionally, global identity entity mark library module 201 was periodically updated according to the default time.Global
Identity entity mark library module 201 other network nodes into NDN by the data is activation itself newly increased in this cycle, to complete
All global identity entities mark library modules with new in NDN.Or
When new data packets enter network node, if not including in the global identity entity mark library module of the network node
The related content of the new data packets, then store the new data packets content name and, the name of new data packets content and new data
Corresponding relation of the bag in NDN is in global identity entity mark library module.
In embodiments of the present invention, library module 201 and Naming resolution device module 202 are identified by global identity entity, can
Freely to edit out a kind of naming method, and it is not limited to existing Hierarchical name, names and three kinds of attribute names from proof
Naming method, can generate certainly Hierarchical name in invention, name and three kinds of naming methods of attribute names from proof.Without weight
Build network environment again, flexibly can enter Mobile state to the distribution policy of the NDN for having built and arrange and complete multiple NDN networks
The experiment and exploitation of framework.
Optionally, in the name data network of the embodiment of the present invention in the configuration system of distribution policy, Naming resolution device
Module 202, including：
Name generates submodule, for according to name and global identity entity mark library module, generating naming method and life
Name analysis mode, wherein, naming method includes：Hierarchical name mode, certainly proof naming method and attribute names mode.
Certainly, name generates submodule and can also generate self-defined naming method and self-defined analysis mode, herein no longer
Repeat.
Naming resolution submodule, for according to Naming resolution mode, parsing to name, obtaining Naming resolution result.
Resource distribution submodule, for according to Naming resolution result, being advised by default basic primitive and default coupling
Then, the configuration of resource is carried out to name, and wherein, default matched rule includes：Name length and character content.
Certainly, default matched rule also includes, according to the matching instruction by user input, generation with the matching instruction
Corresponding self-defined matched rule.
Optionally, in the name data network of the embodiment of the present invention in the configuration system of distribution policy, Naming resolution device
Module 202, also includes：
Name model storehouse submodule, for storing naming method.
The naming method stored in the submodule of name model storehouse includes：Hierarchical name mode, certainly proof naming method, attribute
At least one in naming method and self-defined naming method.
Optionally, in the name data network of the embodiment of the present invention in the configuration system of distribution policy, registry module
203, including：
Registration table sets submodule, for arranging registration table number, registration literary name section and registration table length.
In embodiments of the present invention, the setting to registry module 203, side can be realized by registration table setting submodule
Just the management to volume table module 203.
Referring to Fig. 3, building-block of logic of the Fig. 3 for the collocation method of distribution policy in the NDN of the embodiment of the present invention, including：
In NDN, carry out the distribution of packet between network nodes, when packet enters network node, first, obtain
Take the packet.According to the name of content in the packet, by Naming resolution device module, call in analytical algorithm library module
The algorithm of Naming resolution mode, generates Naming resolution mode corresponding with name, and using the Naming resolution mode to packet
The name of middle content is parsed, and obtains Naming resolution result.
Then, the basic primitive in default primitive library module is called, according to Naming resolution result, by Naming resolution device mould
Block carries out the configuration of resource to name, obtains resource matched result.By network node computing resource, storage resource and letter in NDN
Breath resource is recorded by the form of element, when the configuration of resource is carried out to name, resource element is combined and volume
Operation is collected, to be adapted to corresponding Naming resolution strategy.Naming resolution result can be stored in registration table mould with resource matched result
In one in block or multiple registration tablies, while default spatial cache module can be by the content in registry module according to pre-
If cache policy cached.
Finally, default forwarding interactive controls module is adjusted according to the content in registry module and/or spatial cache module
With the action in default maneuver library, packet distribution between network nodes is completed.Optionally, spatial cache module according to
Default forwarding strategy is cached to the content of packet.
In embodiments of the present invention, by the configuration to naming policy and resource, it is achieved that in NDN, distribution policy matches somebody with somebody
Put, without repeating to build network environment, flexibly can enter Mobile state to the distribution policy in the NDN that built and arrange and complete
The experiment and exploitation of multiple NDN network architectures.
Schematic flow sheets of the Fig. 4 for the method for configuring distribution policy according to packet of the embodiment of the present invention.
When packet is interest bag：
S401, after packet enters network node, name that the packet content is obtained by Naming resolution device, according to
The name generates the Naming resolution mode for parsing the name by Naming resolution device and global identity entity home banking.According to life
Into Naming resolution mode, the name is parsed, Naming resolution result is obtained.
Naming resolution device calls the algorithm in analytical algorithm storehouse, generates Naming resolution mode.Call basic in primitive storehouse
Primitive, for Naming resolution result, carries out resource distribution to name.
S402, according to Naming resolution result, the configuration for carrying out resource to name by Naming resolution device, obtains resource matched
As a result.
According to Naming resolution result, in current network node during the content containing data packet request, setting up packet please
The content that asks is with the corresponding relation for sending the network node of the packet (determines which network node to send packet to asks
The content that asks), while the corresponding dispensing action of coupling, and distribute the position of the content storage produced in this step.Or
According to Naming resolution result, in current network node during content without data packet request, set up packet with
The corresponding relation (determining to which target node packet) of network node, while the corresponding dispensing action of coupling,
And distribute the position of the content storage produced in this step.
S403, Naming resolution result and resource matched result are stored in registration table.
S404, according to registration table, by forwarding the action in interactive controls call action storehouse, generates dispensing action.
Forward interactive controls to read the content in registration table, coordinate global identity entity home banking, in call action storehouse
Action, generate dispensing action.
S405, in current network node during the content containing data packet request, by the dispensing action, returned data bag
The content of request, to the network node for asking the content.
S406, in current network node during content without data packet request, by the dispensing action, by packet point
It is sent to other network nodes.
Accordingly, when packet is content bag：
Step one, after packet enters network node, name that the packet content is obtained by Naming resolution device, root
According to the name by Naming resolution device and global identity entity home banking, the Naming resolution mode for parsing the name is generated.
Step 2, according to the Naming resolution mode for generating, parses to the name, obtains Naming resolution result.
Step 3, according to Naming resolution result, the configuration for carrying out resource to name by Naming resolution device, obtains resource
Match somebody with somebody result.
According to Naming resolution result, which network node the corresponding relation for setting up packet with network node (is determined to
Forward the packet), while the corresponding dispensing action of coupling, and distribute the position of the content storage produced in this step.
Step 4, Naming resolution result and resource matched result are stored in registration table.
Step 5, according to registration table, by forwarding the action in interactive controls call action storehouse, generates dispensing action,
By the dispensing action, the distribution of data is completed.
By the method for the embodiment of the present invention, the configuration for effectively achieving request bag is received, when realizing building NDN networks
The single of network environment is built, and reduces the time delay of distribution policy in global network, has saved Internet resources.
In embodiments of the present invention, different Naming resolution modes can be configured, while corresponding resource can be configured, from
And achieve the configurable of distribution policy in name data network.Flexibly the distribution policy in the NDN that built can be entered
Mobile state is arranged and completes the experiment and exploitation of multiple NDN network architectures, not repeated construction network environment, it is to avoid because repeating to build
If caused NDN network experiments were increased with the construction cycle of NDN running environment, time cost and Internet resources have been saved.
Referring to Fig. 5, Fig. 5 shows for the another kind of the configuration system of distribution policy in the name data network of the embodiment of the present invention
It is intended to, the system includes：
Packet acquisition module 501, for obtaining the first packet, wherein, the first packet includes：First content and
First name of one content.
Analysis mode determining module 502, for according to the first name, in default at least two Naming resolutions mode,
Determine the first Naming resolution mode corresponding with the first name.
Parsing module 503, for parsing to the first name, obtains Naming resolution result.
Matching module 504, for being mated the first name with resource, obtains resource matched result, and wherein, resource is used
In the distribution for supporting the second packet, the second packet includes：First packet and/or the data of the first data packet request.
Distribution module 505, for the second packet is distributed in name data network.
In embodiments of the present invention, different Naming resolution modes can be configured, while corresponding resource can be configured, from
And achieve the configurable of distribution policy in name data network.When distribution policy changes, not repeated construction network rings
Border, it is to avoid because NDN network experiments were increased with the construction cycle of NDN running environment caused by repeated construction, saved the time into
Sheet and Internet resources.
It should be noted that applying the configuration of distribution policy in above-mentioned name data network during the system of the embodiment of the present invention
The system of method, then in above-mentioned name data network, all embodiments of the collocation method of distribution policy are applied to the system,
And can reach same or analogous beneficial effect.
Optionally, in the name data network of the embodiment of the present invention in the configuration system of distribution policy, the system is also wrapped
Include：
First content acquisition module, for obtaining the second content.
First naming method determining module, for, in default at least two naming method, determining a kind of naming method,
Wherein, default at least two naming method includes：In Hierarchical name, certainly proof name and attribute names at least two.
First corresponding relation memory module, for being named to the second content by the naming method for determining, obtains the
Two names, and store the corresponding pass of the second name and the second name with the second content in the network node of name data network
System.
In NDN, a content needs to be named the content using naming method when generating first.Existing
In NDN, naming method is fixed, and in embodiments of the present invention, naming method can be configured, when needing using not
With naming method when, it is not necessary to build again network environment, it is only necessary to configure corresponding naming method.So as to save net
Network resource.
Optionally, in the name data network of the embodiment of the present invention in the configuration system of distribution policy, the system is also wrapped
Include：
Second content obtaining module, for obtaining the second content.
Second naming method determining module, for obtaining and according to the instruction by user input, generating self-defined name side
Formula.
Second corresponding relation memory module, for by self-defined naming method, being named to the second content, obtains
Two names, and store the corresponding pass of the second name and the second name with the second content in the network node of name data network
System.
In embodiments of the present invention, additionally it is possible to according to the instruction of user input, self-defined naming method is generated.Generation is made by oneself
Adopted naming method, is conducive to carrying out NDN network experiments with exploitation NDN running environment, and user can test different naming methods and exist
Using effect in NDN, without building network environment again, has saved time cost and Internet resources.
Optionally, in the name data network of the embodiment of the present invention in the configuration system of distribution policy, the system is also wrapped
Include：
Self-defined parsing generation module, for according to self-defined naming method, generation parses oneself of self-defined naming method
Define analysis mode.
Mode memory module, for storing self-defined naming method and self-defined analysis mode is to predeterminated position.
In embodiments of the present invention, self-defined analysis mode is generated, is conducive to carrying out NDN network experiments with exploitation NDN fortune
Row environment, user can test using effect of the different naming methods in NDN, without building again network environment, save
Time cost and Internet resources.
Optionally, in the name data network of the embodiment of the present invention in the configuration system of distribution policy, matching module 504
Specifically for：
According to Naming resolution result, by default basic primitive and default matched rule, the first name is provided
The coupling in source, obtains resource matched result, and wherein, default matched rule includes：The length and/or character content of name, money
Source includes：The computing resource of network node, storage resource and information resources.
In embodiments of the present invention, name is mated with resource, is effectively supported the configuration of subsequent distribution strategy.
Optionally, in the name data network of the embodiment of the present invention in the configuration system of distribution policy, the system is also wrapped
Include：
As a result memory module, for storing Naming resolution result and resource matched result is in default registration table.
In embodiments of the present invention, storage Naming resolution result and resource matched result are in default registration table, convenient
Search.
Optionally, in the name data network of the embodiment of the present invention in the configuration system of distribution policy, the system is also wrapped
Include：
Cache policy determining module, for, in default at least one cache policy, determining a kind of cache policy, its
In, default at least one cache policy includes：Single network node cache policy, centralized cache policy and distributed caching plan
One or more in slightly.
Cache module, for according to the cache policy for determining, caching to the content in default registration table.
In embodiments of the present invention, the content in registration table is cached, increased the reading efficiency of data.
Optionally, in the name data network of the embodiment of the present invention in the configuration system of distribution policy, distribution module 505
Including：
Corresponding relation acquisition submodule, for according to resource matched result, obtaining the first name with the second packet in life
Corresponding relation in the network node of name data network.
Dispensing action generates submodule, for according to resource matched result and, the first name is with the second packet in name
Corresponding relation in the network node of data network, generates dispensing action.
Distribution submodule, for utilizing dispensing action, the second packet is distributed between network nodes.
In embodiments of the present invention, the generation of dispensing action and configuration mode in distribution policy are given, it is achieved that in NDN
The configuration of distribution policy.
Optionally, in the name data network of the embodiment of the present invention in the configuration system of distribution policy, distribution module 505
Also include：
Packet sending submodule, for when first content is the more new content for naming data network, according to resource
Match somebody with somebody result, when the second packet is the first packet, distribute the first packet to other network nodes, so that other network sections
Point the first packet of distribution, and other network nodes are updated according to the first packet, wherein, other network nodes are name data
One or more network nodes in network in addition to current network node.
Accordingly, in the name data network of the embodiment of the present invention in the configuration system of distribution policy, the system is also wrapped
Include：
Update module, for according to first content, updating current network node.
It should be noted that herein, such as first and second or the like relational terms are used merely to a reality
Body or operation are made a distinction with another entity or operation, and are not necessarily required or implied these entities or deposit between operating
In any this actual relation or order.And, term " including ", "comprising" or its any other variant are intended to
Nonexcludability includes, so that a series of process, method, article or equipment including key elements not only includes that those will
Element, but also other key elements including being not expressly set out, or also include for this process, method, article or equipment
Intrinsic key element.In the absence of more restrictions, the key element for being limited by sentence "including a ...", it is not excluded that
Also there is other identical element in process, method, article or equipment including the key element.
Each embodiment in this specification is described by the way of correlation, identical similar portion between each embodiment
Divide mutually referring to what each embodiment was stressed is the difference with other embodiment.Especially for system reality
For applying example, as which is substantially similar to embodiment of the method, so description is fairly simple, related part is referring to embodiment of the method
Part explanation.
Presently preferred embodiments of the present invention is the foregoing is only, protection scope of the present invention is not intended to limit.All
Any modification, equivalent substitution and improvements that is made within the spirit and principles in the present invention etc., are all contained in protection scope of the present invention
Interior.
Claims (10)
1. a kind of name data network in distribution policy collocation method, it is characterised in that include：
The first packet is obtained, wherein, first packet includes：First content and the first name of the first content；
According to the described first name, in default at least two Naming resolutions mode, determine corresponding with the described first name
First Naming resolution mode；
According to the first Naming resolution mode, the described first name is parsed, Naming resolution result is obtained；
According to the Naming resolution result, the described first name is mated with resource, is obtained resource matched result, wherein,
The resource is used for the distribution for supporting the second packet, and second packet includes：First packet and/or the first packet
The data of request；
According to the resource matched result, second packet is distributed in name data network.
2. method according to claim 1, it is characterised in that before the first packet of the acquisition, methods described is also
Including：
Obtain the second content；
In default at least two naming method, a kind of naming method is determined, wherein, the default at least two name side
Formula includes：In Hierarchical name, certainly proof name and attribute names at least two；
Second content is named by the naming method for determining, obtains the second name, and store second name
And first corresponding relation, wherein, first corresponding relation be the described second name with second content in the name number
According to the corresponding relation in the network node of network.
3. method according to claim 1, it is characterised in that before the first packet of the acquisition, methods described is also
Including：
Obtain the second content；
Obtain and according to the instruction by user input, generate self-defined naming method；
By the self-defined naming method, second content is named, obtains the 3rd name, and store the described 3rd
Name and the second corresponding relation, wherein, second corresponding relation is for the described 3rd name with second content in the life
Corresponding relation in the network node of name data network.
4. method according to claim 3, it is characterised in that obtain and according to the instruction by user input described, raw
Into after self-defined naming method, methods described also includes：
According to the self-defined naming method, the self-defined analysis mode of the parsing self-defined naming method is generated；
The self-defined naming method and the self-defined analysis mode are stored to predeterminated position.
5. method according to claim 1, it is characterised in that described according to the Naming resolution result, by described first
Name is mated with resource, obtains resource matched result, including：
According to the Naming resolution result, by default basic primitive and default matched rule, name to described first into
The coupling of row resource, obtains the resource matched result, and wherein, the default matched rule includes：The length of name and/or
Character content, the resource include：The computing resource of network node, storage resource and information resources.
6. method according to claim 1, it is characterised in that described according to the Naming resolution result, by described
One name is mated with resource, and after obtaining resource matched result, methods described also includes：
The Naming resolution result and the resource matched result are stored in default registration table.
7. method according to claim 6, it is characterised in that in the storage Naming resolution result and the resource
After matching result is in default registration table, methods described also includes：
In default at least one cache policy, a kind of cache policy is determined, wherein, default at least one caching plan
Slightly include：One or more in single network node cache policy, centralized cache policy and distributed buffer memory strategy；
According to the cache policy for determining, the content in the default registration table is cached.
8. method according to claim 1, it is characterised in that described according to the resource matched result, by described second
Packet is distributed in name data network, including：
According to the resource matched result, the 3rd corresponding relation is obtained, wherein, the 3rd corresponding relation is the described first name
With corresponding relation of second packet in the network node of the name data network；
According to the resource matched result and the 3rd corresponding relation, dispensing action is generated；
Using the dispensing action, second packet is distributed between network nodes.
9. method according to claim 1, it is characterised in that described according to the resource matched result, by described second
Packet is distributed in name data network, including：
In the more new content that the first content is the name data network, according to the resource matched result, described
When second packet is the first packet, distribute first packet to other network nodes, so that other network sections described
Point distribution first packet, and other network nodes according to first packet updates, wherein, other nets described
Network node is the one or more network nodes in the name data network in addition to current network node；
Accordingly, described according to the resource matched result, second packet is carried out in name data network point
After sending out, methods described also includes：
According to the first content, the current network node is updated.
10. a kind of name data network in distribution policy configuration system, it is characterised in that include：
Packet acquisition module, for obtaining the first packet, wherein, first packet includes：First content and described
First name of first content；
Analysis mode determining module, for according to the described first name, in default at least two Naming resolutions mode, determines
The first Naming resolution mode corresponding with the described first name；
Parsing module, for parsing to the described first name according to the first Naming resolution mode, obtains Naming resolution
As a result；
Matching module, for according to the Naming resolution result, the described first name being mated with resource, being obtained resource
Match somebody with somebody result, wherein, the resource is used for the distribution for supporting the second packet, and second packet includes：First packet and/
Or first data packet request data；
Distribution module, for according to the resource matched result, second packet is carried out in name data network point
Send out.
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