CN107071011A - A kind of network data communication method based on cloud - Google Patents

A kind of network data communication method based on cloud Download PDF

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Publication number
CN107071011A
CN107071011A CN201710196876.1A CN201710196876A CN107071011A CN 107071011 A CN107071011 A CN 107071011A CN 201710196876 A CN201710196876 A CN 201710196876A CN 107071011 A CN107071011 A CN 107071011A
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cloud
data
step
thresholding
name
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CN201710196876.1A
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Chinese (zh)
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CN107071011B (en
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王晓喃
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常熟理工学院
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00Network-specific arrangements or communication protocols supporting networked applications
    • H04L67/10Network-specific arrangements or communication protocols supporting networked applications in which an application is distributed across nodes in the network

Abstract

The invention provides a kind of network data communication method based on cloud, the network includes backbone network and access network, and backbone network includes P;Access network includes more than one couple in router, access node and user equipment;Couple in router and access node are fixing equipment and position is immovable, and the position of user equipment can be moved.User quickly can correctly obtain service data by implementation method provided by the present invention, shorten the delay for obtaining service data and cost, service quality is improved, present invention can apply to the field such as big data acquisition and road conditions monitoring, is with a wide range of applications.

Description

A kind of network data communication method based on cloud

Technical field

The present invention relates to a kind of data communications method, more particularly to a kind of network data communication method based on cloud.

Background technology

In recent years, many research work are directed to cloud, to allow users to quick obtaining network service.With network skill The development of art, cloud can turn into a kind of following pattern for providing service.At present, the implementation pattern of cloud is realized by broadcasting, because This delay and cost are all than larger;User is difficult to obtain data from closest cloud member, further increases data communication Delay;In addition, the mobile handoff of cloud member can cause the inconsistency of forward table to cause user can not correctly obtain number Required data must be obtained according to, user by request for data again, be reduce further network service, are added communication delay.

Therefore, the hot issue of delay and cost as Recent study that cloud provides service how is reduced.

The content of the invention

Goal of the invention:The technical problems to be solved by the invention are to be based on cloud there is provided one kind in view of the shortcomings of the prior art Network data communication method.The present invention realizes cloud by way of unicast substitution broadcast, so that reducing cloud provides service Delay and cost, so as to effectively improve network service performance.

Technical scheme:The invention discloses a kind of network data communication method based on cloud, the network includes backbone network And access network, backbone network include P;Access network include more than one couple in router, access node and User equipment;Couple in router and access node are fixing equipment and position is immovable, and the position of user equipment can be moved; The topological structure of fixing equipment in access network is tree, wherein, leaf node is access node, root node and centre Node is couple in router;Access node has a wave point and a wireline interface, and wireline interface is used to connect father node, Wave point is used to connect user equipment, and access node jumps reachable with user equipment one;The root node and backbone network of access network In P connection, two access networks pass through backbone network realize communication;User equipment passes through apart from oneself jump model Access node in enclosing realizes communication, and an access node and the user equipment by access node realization communication constitute one Individual data title-domain, a data title-domain by the data name domain access node name prefix unique mark;One use Family equipment both can as data supplier, can also as data consumer;

A type of data are defined by a data name, and a data name is by name prefix and title ID structures Into name prefix is divided into more than two levels, if the name prefix of an intermediate node or leaf node is by p layers of structure Into p>1, the name prefix of the father node of intermediate node or leaf node is constituted by q layers, q>1,p>Q, then intermediate node or Preceding q layers of the name prefix of person's leaf node are equal to the name prefix of the father node of oneself;For example in data name Video.movie.comedy/NO1, video.movie.comedy points of name prefix is three levels, and title ID is NO1;Connect Enter each couple in router or access node in network by a name prefix unique mark, and each intermediate node or leaf Child node inherits the name prefix of its father node, and such as one couple in router video.movie.comedy haves three layers before network Sew, then its father node there are 2 layer network prefix video.movie, wherein first two layers of network prefix is identical;

User equipment, access node, couple in router or P realize data communication by message;Access network The type of message thresholding that network gives out information is 1;The type of message thresholding that backbone network gives out information is 2;Cloud creates disappearing for message It is 3 to cease type thresholding;The type of message thresholding that cloud creates response message is 4;Cloud create confirmation message type of message thresholding be 5;The type of message thresholding of cloud handover request is 6;The type of message thresholding that cloud deletes message is 7;The message class of cloud request message Type thresholding is 8;The type of message thresholding of cloud response message is 9;

Access network and backbone network are realized by forward table to communicate, and the forwarding-table item of a forward table is by network prefix domain Constituted with interface domain Liang Ge domains;

Access network gives out information, backbone network gives out information, cloud create message, cloud delete message, cloud request message by Two domains in data name domain and message type field are constituted;

Cloud creates response message, cloud and creates confirmation message, cloud handover request, cloud response message by data name domain, message Type field and three, domain of load domain are constituted;

Intermediate node or leaf node in access network set up forward table by following processes:

Step 101:Start;

Step 102:Intermediate node or leaf node build an access network and given out information, what access network gave out information Name prefix in data name domain is identifies the name prefix of the intermediate node and leaf node, and name ID is 0, type of message Thresholding is 1, and intermediate node and leaf node send the access network from the interface being connected with father node and given out information;

Step 103:The interface f that father node is connected from the intermediate node and leaf node given out information with transmission access network Receive after access network gives out information, create a forwarding-table item in forward table, the name prefix domain of forwarding-table item is connects Enter the name prefix during network gives out information, interface thresholding is f;

Step 104:Terminate;

Root node, intermediate node or leaf node in access network are received after access network gives out information, and are looked into first See forward table, if the name prefix thresholding of at least one forwarding-table item and access network give out information in name prefix Matching degree is higher than the matching degree of the name prefix in the name prefix and message of oneself, then selects name prefix matching degree Highest forwarding-table item, and forward the access network received to give out information from the interface domain of the forwarding-table item;Otherwise, then from The access network that father node or the connected interface forwarding of P are received gives out information;The matching degree refers to two Individual name prefix is contrasted since first place, and consecutive identical digit is more, it was demonstrated that the matching degree of the two name prefixes is higher.

Said process can quickly set up forward table so as to which user being capable of data needed for quick obtaining.

In the method for the invention, it is as follows that the forward table of the backbone network sets up process:

Step 201:Start;

Step 202:The root node of access network builds a backbone network and given out information, the number that backbone network gives out information It is the name prefix of oneself according to the name prefix in title-domain, name ID is 0, and type of message is 2;

Step 203:The interface that root node is connected from P sends the backbone network and given out information;

Step 204:P is received after backbone network gives out information from the interface f1 of oneself, is judged in forward table It is the forwarding-table item that name prefix and interface thresholding during backbone network gives out information are f1 with the presence or absence of name prefix domain, if deposited Step 206 is being performed, step 205 is otherwise performed;

Step 205:P creates a forwarding-table item, and the name prefix domain of the forwarding-table item is issued for backbone network Name prefix in message, interface thresholding is f1, is then connected from each in addition to interface f1 with other P Interface forwarding backbone network give out information, perform step 204;

Step 206:Terminate.

Said process can quickly set up forward table so as to which user being capable of data needed for quick obtaining.

In the method for the invention, a type of data are produced by an access cloud, and the access cloud is by defining the species The data name definition of type data, can produce, preserves and provide the user equipment of data or access defined in access cloud Node is referred to as cloud member;

Access cloud is preserved and provided the data that access cloud is defined using cloud storage table, and a cloud storage list item includes three Domain:Data name domain, data field and life span domain;Wherein data name domain is used for defining a type of data, data Domain is used for the data for storing this type, and life span is used for the life time for defining this kind of data, when life time is decayed to 0, then the cloud storage list item is automatic deletes from cloud storage table;

Data consumer obtains data using concordance list and Aggregation Table;Concordance list is used for the letter for preserving access cloud member Breath, Aggregation Table is used for the polymerization for realizing cloud request;Index list item is made up of data name domain, interface domain and life cycle domain;When Life time decays to 0, then the index list item is automatic deletes from concordance list;It polymerize list item by data name domain and interface domain structure Into;

It is NP1 in data name N1 name prefix, title ID is NID1, and the data that data name N1 is defined are C1, number It is T1 according to C1 maximum lifetime, access node CAP1 is located in the ND1 of data name domain, and access node CAP1 is by name prefix NP1 is identified;Data C1 can be divided into n partial data, and the union of n partial data is equal under conditions of data C1, n values For natural number, such as one TV play includes 20 collection, and this TV play can be divided into 20 parts, and a collection is used as a part Data;

If access node CAP1 is uniquely to have permission the access node for producing data C1, access node CAP1 is by creating Access cloud AC1 to create data C1, access cloud AC1 is defined by data name N1, then create data C1 process including following Step:

Step 301:Start;

Step 302:Access node CAP1 sends cloud by wave point and creates message, and it is number that cloud, which creates the title-domain of message, According to title N1, type of message thresholding is 3;

Step 303:Data C1 or data C1 part can be provided if receiving the user equipment of cloud establishment message Data, then return to a cloud and create response message, the data name that the cloud creates response message is N1, and type of message thresholding is 4, The data for loading thresholding to provide;

Step 304:Access node CAP1 receives the data name thresholding of all returns and creates response message for N1 cloud Afterwards, the load thresholding for cloud being created into response message is performed and operated to be built into data C1, and a cloud is created in cloud storage table In storage item, the cloud storage list item, data name thresholding is N1, and data thresholding is C1, and life span thresholding is T1;Access section Point CAP1 is by oneself cloud member labeled as access cloud AC1, while sending cloud by wave point creates confirmation message, cloud wound The data name for building confirmation message is N1, and type of message thresholding is 5, and load thresholding is data C1, and life span is T1;

Step 305:User equipment receives cloud and created after confirmation message, and a cloud storage list item is created in cloud storage table, should In cloud storage list item, data name thresholding is N1, and data thresholding is C1, and life span thresholding is T1;User equipment marks oneself It is designated as access cloud AC1 cloud member;

Step 306:Terminate;

If data C1 life span decays to 0, the cloud that data name thresholding is N1 is deleted from cloud storage table and is deposited List item is stored up, access node CAP1 creates data C1 again by performing step 301~step 306.

Said process can quickly create data so as to which user being capable of data needed for quick obtaining.

In the method for the invention, user equipment D3 is the cloud member for accessing cloud AC1, using the teaching of the invention it is possible to provide data C1, data name Domain ND2 access node is called CAP2, and access node CAP2 is identified by name prefix NP2, if user equipment D3 is from data name Domain ND1 is claimed to be moved to data name domain ND2, then to perform following mobile handoff operations:

Step 401:Start;

Step 402:User equipment D3 sends cloud handover request to access node CAP2, and the title thresholding of cloud handover request is N1, type of message thresholding is 6, and load thresholding is the life span thresholding in data C1 and preservation data C1 cloud storage list item T2;

Step 403:Access node CAP2 is received after cloud handover request from wave point w, checks that concordance list judges whether to deposit In the index list item that data name thresholding is N1, if it does, carrying out step 409, step 404 is otherwise performed;

Step 404:Access node CAP2 creates an index list item, and the data name thresholding of the index list item is N1, is connect Mouth thresholding is w, and life span is the life span in the cloud handover request received;Access node CAP2 is connected from father node Interface forward the cloud handover request;

Step 405:Father node receives cloud handover request from the interface f2 of oneself, checks that concordance list judges whether data Title thresholding is N1 index list item, if it does, carrying out step 406, otherwise performs step 407;

Step 406:The interface f2 of oneself is added to interface domain of the data name thresholding for N1 index list item by father node In, perform step 409;

Step 407:Father node creates an index list item, and the data name thresholding of the index list item is N1, interface thresholding For f2, life span is the life span in the cloud handover request received, if father node is the root node of access network, Step 409 is performed, step 408 is otherwise performed;

Step 408:The interface that father node is connected from the father node with oneself forwards the cloud handover request, performs step 405;

Step 409:Terminate;

User equipment D3 is performed after mobile handoff, periodically sends beacon frame, and beacon frame load is data name N1;

Access node periodically sends beacon frame, and beacon frame load is the mark name prefix of oneself;

Said process is able to ensure that the correctness of route so as to which user quickly can correctly obtain required data.

If access node CAP2 does not receive beacon frame of the load for data name N1 at the appointed time, under performing State concordance list and update step:

Step 501:Start;

Step 502:Access node CAP2 deletes the index list item that data name is N1 from concordance list, connects from father node The interface connect sends cloud and deletes message, and data name domain is N1, and message type field is 7;

Step 503:Father node receives cloud from the interface f3 of oneself and deletes message, checks that data name thresholding is in concordance list N1 index list item, and interface f3 is deleted from the interface domain of the index list item, if the interface thresholding is sky, carry out step 504, otherwise perform step 506;

Step 504:Father node deletes the index list item that data name thresholding is N1, judges whether oneself is root node, such as Fruit is then to perform step 506, otherwise performs step 505;

Step 505:The interface that father node is connected from the father node with oneself forwards the cloud to delete message, performs step 503;

Step 506:Terminate.

Said process quickly can correctly update concordance list so as to which user quickly can correctly obtain required data.

In the method for the invention, it is located in user equipment D6 in title-domain ND2, title-domain ND2 access node is CAP2, data C2 is defined by data name N2, under conditions of data name N2 name prefix is NP2, if access node CAP2 is defined by name prefix NP2 or access node CAP2 has the index list item that data name thresholding is N2 in concordance list, So user equipment D6 is then according to following Procedure Acquisition data C2:

Step 601:Start;

Step 602:User equipment D6 creates a cloud request message, and data name thresholding is N2, and type of message thresholding is 8, cloud request message is sent to access node CAP2;

Step 603:Wave point fs of the access node CAP2 from oneselfLReceive after cloud request message, created in Aggregation Table One polymerization list item, the data name thresholding of the polymerization list item is N2, and interface thresholding is fL

Step 604:Access node CAP2 judges whether there was only Aggregation Table of the item data title thresholding for N2 in Aggregation Table , if it is, carrying out step 605, otherwise carry out step 608;

Step 605:Judge whether access node CAP2 is identified by name prefix NP2, if it is, carrying out step 606, otherwise Perform step 607;

Step 606:If access node CAP2, without data C2 is preserved, performs step 301~306 in cloud storage table Create data C2;Then access node CAP2 creates a cloud response message, and wherein data name thresholding is N2, message type field It is worth for 9, loads as data C2, data C2 life cycle, as preserve the life span thresholding of data C2 cloud storage list item, Then step 608 is performed;

Step 607:Access node CAP2 forwards the cloud request message received from wave point, using the teaching of the invention it is possible to provide data C2's Cloud member is received after the cloud request message, creates a cloud response message, wherein data name thresholding is N2, message type field It is worth for 9, loads the life cycle for data C2 and data C2, as preserve the life span domain of data C2 cloud storage list item Value, is then sent to access node CAP2 by cloud response message;

Step 608:Access node CAP2 is created or received after cloud response message, is for each data name thresholding N1 polymerization list item, access node CAP2 is proceeded as follows:The cloud response message is forwarded from the interface domain of the polymerization list item, so The polymerization list item is deleted from Aggregation Table afterwards;

Step 609:User equipment D6 is received after cloud response message, and a cloud storage list item is created in cloud storage table, should The data name thresholding of cloud storage list item is N2, and data thresholding is C2, and life span thresholding is the existence week in cloud response message Time value, user equipment D6 is converted to cloud member;

Step 610:Judge whether access node CAP2 is identified by name prefix NP2, if it is, performing step 612, otherwise Perform step 611;

Step 611:User equipment D6 performs step 401~409;

Step 612:Terminate.

Said process is able to ensure that user quickly correctly obtains required data.

In the method for the invention, user equipment D4 is located in title-domain ND2, and title-domain ND2 access node is CAP2, Data C1 is defined by data name N1, and data name N1 name prefix is NP1, and access node CAP2 is determined by name prefix NP2 Justice, access node CAP1 is defined with name prefix NP1, if access node CAP2 does not have the data name thresholding to be in concordance list N1 index list item, then user equipment D4 is then according to following Procedure Acquisition data C1:

Step 701:Start;

Step 702:User equipment D4 creates a cloud request message, and wherein data name thresholding is N1, message type field It is worth for 8, loads as sky, cloud request message is then sent to access node CAP2;

Step 703:Wave point fs of the access node CAP2 from oneselfLReceive after cloud request message, created in Aggregation Table One polymerization list item, the data name thresholding of the polymerization list item is N1, and interface thresholding is fL

Step 704:Access node CAP2 judges whether there was only Aggregation Table of the item data title thresholding for N1 in Aggregation Table , if it is, carrying out step 705, otherwise carry out step 716;

Step 705:Access node CAP2 forwards cloud request message from the interface being connected with father node;

Step 706:Couple in router or access node receive cloud request message from the interface f4 of oneself, in Aggregation Table Middle to create a polymerization list item, the data name thresholding of the polymerization list item is N1, and interface thresholding is f4

Step 707:Judge the couple in router or access node that receive cloud request message judge in Aggregation Table whether An only item data title thresholding is N1 polymerization list item, if it is, carrying out step 708, otherwise carries out step 716;

Step 708:If couple in router receives cloud request message and does not have the data name thresholding to be in concordance list N1 index list item, then perform step 709, otherwise performs step 711;

Step 709:The couple in router for receiving cloud request message checks forward table, if at least one forwarding-table item Name prefix thresholding and name prefix NP1 matching degree be more than the name prefix of oneself and name prefix NP1 match journey Degree, then select the maximum forwarding-table item of name prefix matching degree, then disappears from the interface domain forwarding cloud request of the forwarding-table item Breath;Otherwise, cloud request message is forwarded from the interface being connected with father node, matching degree refers to contrast since highest order, continuously Identical digit is more, it was demonstrated that matching degree is higher;

Step 710:The couple in router for receiving cloud request message performs step 706;

Step 711:If couple in router receives cloud request message and has data name thresholding to be N1 in concordance list Index list item, then perform step 712, otherwise perform step 713;

Step 712:Receive couple in router the connecing from the index list item that data name thresholding is N1 of cloud request message Mouth domain forwarding cloud request message, performs step 706;

Step 713:If access node receives cloud request message and has data name thresholding to be N1's in concordance list List item is indexed, then performs step 714, step 715 is otherwise performed;

Step 714:The access node for receiving cloud request message forwards the cloud received please from the interface domain of forwarding-table item Seek message, using the teaching of the invention it is possible to provide data C1 cloud member is received after the cloud request message, create a cloud response message, wherein data Title thresholding is N1, and type of message thresholding is 9, loads the life cycle for data C1 and data C1, as preserves data C1 Cloud storage list item life span thresholding, cloud response message is then sent to the access node, step 716 is performed;

Step 715:If the access node for receiving cloud request message is no in cloud storage table to preserve data C1, hold Row step 301~306 create data C1;Then access node creates a cloud response message, and wherein data name thresholding is N1, Type of message thresholding is 9, loads the life cycle for data C1 and data C1, as preserves data C1 cloud storage list item Life span thresholding;

Step 716:If couple in router or access node create or receive cloud response message, step is performed 717, otherwise perform step 718;

Step 717:Couple in router or access node are directed to the polymerization that each data name thresholding is N1 in Aggregation Table List item is proceeded as follows:The cloud response message is forwarded from the interface domain of the polymerization list item, this is then deleted from Aggregation Table and is gathered List item is closed, step 716 is performed;

Step 718:User equipment D4 is received after cloud response message, and a cloud storage list item is created in cloud storage table, should The data name thresholding of cloud storage list item is N1, and data thresholding is C1, and life span thresholding is the existence week in cloud response message Time value, user equipment D4 is converted to cloud member, performs step 401~409;

Step 719:Terminate.

Said process is able to ensure that user quickly correctly obtains required data.

Beneficial effect:The invention provides a kind of network data communication method based on cloud, user is carried by the present invention The implementation method of confession quickly can correctly obtain service data, shorten the delay for obtaining service data and cost, improve Service quality, present invention can apply to the field such as big data acquisition and road conditions monitoring, is with a wide range of applications.

Brief description of the drawings

The present invention is done with reference to the accompanying drawings and detailed description and further illustrated, of the invention is above-mentioned And/or otherwise advantage will become apparent.

Fig. 1 sets up forward table schematic flow sheet to be of the present invention.

Fig. 2 sets up backbone network forward table schematic flow sheet to be of the present invention.

Fig. 3 is establishment data flow diagram of the present invention.

Fig. 4 is mobile handoff schematic flow sheet of the present invention.

Fig. 5 is renewal concordance list schematic diagram of the present invention.

Fig. 6 is acquisition local data flow schematic diagram of the present invention.

Fig. 7 is acquisition teledata schematic flow sheet of the present invention.

Embodiment:

The invention provides a kind of network data communication method based on cloud, user passes through realization side provided by the present invention Method quickly can correctly obtain service data, shorten the delay for obtaining service data and cost, improve service quality, this Invention can be applied to the fields such as big data is obtained and road conditions are monitored, and be with a wide range of applications.

Fig. 1 sets up forward table schematic flow sheet to be of the present invention.The network includes backbone network and access network, bone Dry net includes P;Access network includes more than one couple in router, access node and user equipment;Access Router and access node are fixing equipment and position is immovable, and the position of user equipment can be moved;In access network The topological structure of fixing equipment is tree, wherein, leaf node is access node, and root node and intermediate node are access road By device;Access node has a wave point and a wireline interface, and wireline interface is used to connect father node, and wave point is used for User equipment is connected, access node jumps reachable with user equipment one;Key route in the root node and backbone network of access network Device is connected, and two access networks are realized by backbone network and communicated;User equipment passes through the access section in the range of oneself jump Point realizes communication, and an access node and the user equipment by access node realization communication constitute a data name Domain, a data title-domain by the data name domain access node name prefix unique mark;One user equipment both may be used Using the supplier as data, can also as data consumer;

A type of data are defined by a data name, and a data name is by name prefix and title ID structures Into name prefix is divided into video.movie.comedy/NO1, name prefix in more than two levels, such as data name Video.movie.comedy points are three levels, and title ID is NO1;If the name of an intermediate node or leaf node Prefix is constituted by p layers, p>1, the name prefix of the father node of intermediate node or leaf node is constituted by q layers, q>1,p>Q, that Preceding q layers of the name prefix of intermediate node or leaf node are equal to the name prefix of the father node of oneself;In access network Each couple in router or access node by a name prefix unique mark, and each intermediate node or leaf node after Hold the name prefix of its father node, such as one couple in router video.movie.comedy haves three layers network prefix, then it Father node have 2 layer network prefix video.movie, wherein first two layers of network prefix is identical;

User equipment, access node, couple in router or P realize data communication by message;Access network The type of message thresholding that network gives out information is 1;The type of message thresholding that backbone network gives out information is 2;Cloud creates disappearing for message It is 3 to cease type thresholding;The type of message thresholding that cloud creates response message is 4;Cloud create confirmation message type of message thresholding be 5;The type of message thresholding of cloud handover request is 6;The type of message thresholding that cloud deletes message is 7;The message class of cloud request message Type thresholding is 8;The type of message thresholding of cloud response message is 9;

Access network and backbone network are realized by forward table to communicate, and the forwarding-table item of a forward table is by network prefix domain Constituted with interface domain Liang Ge domains;

Access network gives out information, backbone network gives out information, cloud create message, cloud delete message, cloud request message by Two domains in data name domain and message type field are constituted;

Cloud creates response message, cloud and creates confirmation message, cloud handover request, cloud response message by data name domain, message Type field and three, domain of load domain are constituted;

Intermediate node or leaf node in access network set up forward table by following processes:

Step 101:Start;

Step 102:Intermediate node or leaf node build an access network and given out information, what access network gave out information Name prefix in data name domain is identifies the name prefix of the intermediate node and leaf node, and name ID is 0, type of message Thresholding is 1, and intermediate node and leaf node send the access network from the interface being connected with father node and given out information;

Step 103:The interface f that father node is connected from the intermediate node and leaf node given out information with transmission access network Receive after access network gives out information, create a forwarding-table item in forward table, the name prefix domain of forwarding-table item is connects Enter the name prefix during network gives out information, interface thresholding is f;

Step 104:Terminate;

Root node, intermediate node or leaf node in access network are received after access network gives out information, and are looked into first See forward table, if the name prefix thresholding of at least one forwarding-table item and access network give out information in name prefix Matching degree is higher than the matching degree of the name prefix in the name prefix and message of oneself, then selects name prefix matching degree Highest forwarding-table item, and forward the access network received to give out information from the interface domain of the forwarding-table item;Otherwise, then from The access network that father node or the connected interface forwarding of P are received gives out information;The matching degree refers to two Individual name prefix is contrasted since first place, and consecutive identical digit is more, it was demonstrated that the matching degree of the two name prefixes is higher.

Said process can quickly set up forward table so as to which user being capable of data needed for quick obtaining.

Fig. 2 sets up backbone network forward table schematic flow sheet to be of the present invention.The forward table of the backbone network is set up Process is as follows:

Step 201:Start;

Step 202:The root node of access network builds a backbone network and given out information, the number that backbone network gives out information It is the name prefix of oneself according to the name prefix in title-domain, name ID is 0, and type of message is 2;

Step 203:The interface that root node is connected from P sends the backbone network and given out information;

Step 204:P is received after backbone network gives out information from the interface f1 of oneself, is judged in forward table It is the forwarding-table item that name prefix and interface thresholding during backbone network gives out information are f1 with the presence or absence of name prefix domain, if deposited Step 206 is being performed, step 205 is otherwise performed;

Step 205:P creates a forwarding-table item, and the name prefix domain of the forwarding-table item is issued for backbone network Name prefix in message, interface thresholding is f1, is then connected from each in addition to interface f1 with other P Interface forwarding backbone network give out information, perform step 204;

Step 206:Terminate.

Said process can quickly set up forward table so as to which user being capable of data needed for quick obtaining.

Fig. 3 is establishment data flow diagram of the present invention.A type of data are produced by an access cloud, should Access cloud is defined by the data name of definition this type data, can produce, preserves and provide data defined in access cloud User equipment or access node be referred to as cloud member;

Access cloud is preserved and provided the data that access cloud is defined using cloud storage table, and a cloud storage list item includes three Domain:Data name domain, data field and life span domain;Wherein data name domain is used for defining a type of data, data Domain is used for the data for storing this type, and life span is used for the life time for defining this kind of data, when life time is decayed to 0, then the cloud storage list item is automatic deletes from cloud storage table;

Data consumer obtains data using concordance list and Aggregation Table;Concordance list is used for the letter for preserving access cloud member Breath, Aggregation Table is used for the polymerization for realizing cloud request;Index list item is made up of data name domain, interface domain and life cycle domain;When Life time decays to 0, then the index list item is automatic deletes from concordance list;It polymerize list item by data name domain and interface domain structure Into;

It is NP1 in data name N1 name prefix, title ID is NID1, and the data that data name N1 is defined are C1, number It is T1 according to C1 maximum lifetime, access node CAP1 is located in the ND1 of data name domain, and access node CAP1 is by name prefix NP1 is identified;Data C1 can be divided into n partial data, and the union of n partial data is equal under conditions of data C1, n values For natural number, such as one TV play includes 20 collection, and this TV play can be divided into 20 parts, and a collection is used as a part Data;

If access node CAP1 is uniquely to have permission the access node for producing data C1, access node CAP1 is by creating Access cloud AC1 to create data C1, access cloud AC1 is defined by data name N1, then create data C1 process including following Step:

Step 301:Start;

Step 302:Access node CAP1 sends cloud by wave point and creates message, and it is number that cloud, which creates the title-domain of message, According to title N1, type of message thresholding is 3;

Step 303:Data C1 or data C1 part can be provided if receiving the user equipment of cloud establishment message Data, then return to a cloud and create response message, the data name that the cloud creates response message is N1, and type of message thresholding is 4, The data for loading thresholding to provide;

Step 304:Access node CAP1 receives the data name thresholding of all returns and creates response message for N1 cloud Afterwards, the load thresholding for cloud being created into response message is performed and operated to be built into data C1, and a cloud is created in cloud storage table In storage item, the cloud storage list item, data name thresholding is N1, and data thresholding is C1, and life span thresholding is T1;Access section Point CAP1 is by oneself cloud member labeled as access cloud AC1, while sending cloud by wave point creates confirmation message, cloud wound The data name for building confirmation message is N1, and type of message thresholding is 5, and load thresholding is data C1, and life span is T1;

Step 305:User equipment receives cloud and created after confirmation message, and a cloud storage list item is created in cloud storage table, should In cloud storage list item, data name thresholding is N1, and data thresholding is C1, and life span thresholding is T1;User equipment marks oneself It is designated as access cloud AC1 cloud member;

Step 306:Terminate;

If data C1 life span decays to 0, the cloud that data name thresholding is N1 is deleted from cloud storage table and is deposited List item is stored up, access node CAP1 creates data C1 again by performing step 301~step 306.

Said process can quickly create data so as to which user being capable of data needed for quick obtaining.

Fig. 4 is mobile handoff schematic flow sheet of the present invention.User equipment D3 is the cloud member for accessing cloud AC1, energy Data C1 is enough provided, data name domain ND2 access node is CAP2, and access node CAP2 is identified by name prefix NP2, if User equipment D3 is moved to data name domain ND2 from data name domain ND1, then perform following mobile handoff operations:

Step 401:Start;

Step 402:User equipment D3 sends cloud handover request to access node CAP2, and the title thresholding of cloud handover request is N1, type of message thresholding is 6, and load thresholding is the life span thresholding in data C1 and preservation data C1 cloud storage list item T2;

Step 403:Access node CAP2 is received after cloud handover request from wave point w, checks that concordance list judges whether to deposit In the index list item that data name thresholding is N1, if it does, carrying out step 409, step 404 is otherwise performed;

Step 404:Access node CAP2 creates an index list item, and the data name thresholding of the index list item is N1, is connect Mouth thresholding is w, and life span is the life span in the cloud handover request received;Access node CAP2 is connected from father node Interface forward the cloud handover request;

Step 405:Father node receives cloud handover request from the interface f2 of oneself, checks that concordance list judges whether data Title thresholding is N1 index list item, if it does, carrying out step 406, otherwise performs step 407;

Step 406:The interface f2 of oneself is added to interface domain of the data name thresholding for N1 index list item by father node In, perform step 409;

Step 407:Father node creates an index list item, and the data name thresholding of the index list item is N1, interface thresholding For f2, life span is the life span in the cloud handover request received, if father node is the root node of access network, Step 409 is performed, step 408 is otherwise performed;

Step 408:The interface that father node is connected from the father node with oneself forwards the cloud handover request, performs step 405;

Step 409:Terminate;

User equipment D3 is performed after mobile handoff, periodically sends beacon frame, and beacon frame load is data name N1;

Access node periodically sends beacon frame, and beacon frame load is the mark name prefix of oneself;

Said process is able to ensure that the correctness of route so as to which user quickly can correctly obtain required data.

Fig. 5 is renewal concordance list schematic diagram of the present invention.If access node CAP2 is not received at the appointed time To beacon frame of the load for data name N1, then perform following concordance lists and update step:

Step 501:Start;

Step 502:Access node CAP2 deletes the index list item that data name is N1 from concordance list, connects from father node The interface connect sends cloud and deletes message, and data name domain is N1, and message type field is 7;

Step 503:Father node receives cloud from the interface f3 of oneself and deletes message, checks that data name thresholding is in concordance list N1 index list item, and interface f3 is deleted from the interface domain of the index list item, if the interface thresholding is sky, carry out step 504, otherwise perform step 506;

Step 504:Father node deletes the index list item that data name thresholding is N1, judges whether oneself is root node, such as Fruit is then to perform step 506, otherwise performs step 505;

Step 505:The interface that father node is connected from the father node with oneself forwards the cloud to delete message, performs step 503;

Step 506:Terminate.

Said process quickly can correctly update concordance list so as to which user quickly can correctly obtain required data.

Fig. 6 is acquisition local data flow schematic diagram of the present invention.It is located in user equipment D6 in title-domain ND2, Title-domain ND2 access node is CAP2, and data C2 is defined by data name N2, and data name N2 name prefix is NP2's Under the conditions of, if access node CAP2 is defined by name prefix NP2 or access node CAP2 has data name in concordance list Thresholding is N2 index list item, then user equipment D6 is then according to following Procedure Acquisition data C2:

Step 601:Start;

Step 602:User equipment D6 creates a cloud request message, and data name thresholding is N2, and type of message thresholding is 8, cloud request message is sent to access node CAP2;

Step 603:Wave point fs of the access node CAP2 from oneselfLReceive after cloud request message, created in Aggregation Table One polymerization list item, the data name thresholding of the polymerization list item is N2, and interface thresholding is fL

Step 604:Access node CAP2 judges whether there was only Aggregation Table of the item data title thresholding for N2 in Aggregation Table , if it is, carrying out step 605, otherwise carry out step 608;

Step 605:Judge whether access node CAP2 is identified by name prefix NP2, if it is, carrying out step 606, otherwise Perform step 607;

Step 606:If access node CAP2, without data C2 is preserved, performs step 301~306 in cloud storage table Create data C2;Then access node CAP2 creates a cloud response message, and wherein data name thresholding is N2, message type field It is worth for 9, loads as data C2, data C2 life cycle, as preserve the life span thresholding of data C2 cloud storage list item, Then step 608 is performed;

Step 607:Access node CAP2 forwards the cloud request message received from wave point, using the teaching of the invention it is possible to provide data C2's Cloud member is received after the cloud request message, creates a cloud response message, wherein data name thresholding is N2, message type field It is worth for 9, loads the life cycle for data C2 and data C2, as preserve the life span domain of data C2 cloud storage list item Value, is then sent to access node CAP2 by cloud response message;

Step 608:Access node CAP2 is created or received after cloud response message, is for each data name thresholding N1 polymerization list item, access node CAP2 is proceeded as follows:The cloud response message is forwarded from the interface domain of the polymerization list item, so The polymerization list item is deleted from Aggregation Table afterwards;

Step 609:User equipment D6 is received after cloud response message, and a cloud storage list item is created in cloud storage table, should The data name thresholding of cloud storage list item is N2, and data thresholding is C2, and life span thresholding is the existence week in cloud response message Time value, user equipment D6 is converted to cloud member;

Step 610:Judge whether access node CAP2 is identified by name prefix NP2, if it is, performing step 612, otherwise Perform step 611;

Step 611:User equipment D6 performs step 401~409;

Step 612:Terminate.

Said process is able to ensure that user quickly correctly obtains required data.

Fig. 7 is acquisition teledata schematic flow sheet of the present invention.User equipment D4 is located in title-domain ND2, name Domain ND2 access node is called CAP2, and data C1 is defined by data name N1, and data name N1 name prefix is NP1, access Node CAP2 is defined by name prefix NP2, and access node CAP1 is defined with name prefix NP1, if access node CAP2 is in rope Draw the index list item for not having data name thresholding to be N1 in table, then user equipment D4 is then according to following Procedure Acquisition data C1:

Step 701:Start;

Step 702:User equipment D4 creates a cloud request message, and wherein data name thresholding is N1, message type field It is worth for 8, loads as sky, cloud request message is then sent to access node CAP2;

Step 703:Wave point fs of the access node CAP2 from oneselfLReceive after cloud request message, created in Aggregation Table One polymerization list item, the data name thresholding of the polymerization list item is N1, and interface thresholding is fL

Step 704:Access node CAP2 judges whether there was only Aggregation Table of the item data title thresholding for N1 in Aggregation Table , if it is, carrying out step 705, otherwise carry out step 716;

Step 705:Access node CAP2 forwards cloud request message from the interface being connected with father node;

Step 706:Couple in router or access node receive cloud request message from the interface f4 of oneself, in Aggregation Table Middle to create a polymerization list item, the data name thresholding of the polymerization list item is N1, and interface thresholding is f4

Step 707:Judge the couple in router or access node that receive cloud request message judge in Aggregation Table whether An only item data title thresholding is N1 polymerization list item, if it is, carrying out step 708, otherwise carries out step 716;

Step 708:If couple in router receives cloud request message and does not have the data name thresholding to be in concordance list N1 index list item, then perform step 709, otherwise performs step 711;

Step 709:The couple in router for receiving cloud request message checks forward table, if at least one forwarding-table item Name prefix thresholding and name prefix NP1 matching degree be more than the name prefix of oneself and name prefix NP1 match journey Degree, then select the maximum forwarding-table item of name prefix matching degree, then disappears from the interface domain forwarding cloud request of the forwarding-table item Breath;Otherwise, cloud request message is forwarded from the interface being connected with father node, matching degree refers to contrast since highest order, continuously Identical digit is more, it was demonstrated that matching degree is higher;

Step 710:The couple in router for receiving cloud request message performs step 706;

Step 711:If couple in router receives cloud request message and has data name thresholding to be N1 in concordance list Index list item, then perform step 712, otherwise perform step 713;

Step 712:Receive couple in router the connecing from the index list item that data name thresholding is N1 of cloud request message Mouth domain forwarding cloud request message, performs step 706;

Step 713:If access node receives cloud request message and has data name thresholding to be N1's in concordance list List item is indexed, then performs step 714, step 715 is otherwise performed;

Step 714:The access node for receiving cloud request message forwards the cloud received please from the interface domain of forwarding-table item Seek message, using the teaching of the invention it is possible to provide data C1 cloud member is received after the cloud request message, create a cloud response message, wherein data Title thresholding is N1, and type of message thresholding is 9, loads the life cycle for data C1 and data C1, as preserves data C1 Cloud storage list item life span thresholding, cloud response message is then sent to the access node, step 716 is performed;

Step 715:If the access node for receiving cloud request message is no in cloud storage table to preserve data C1, hold Row step 301~306 create data C1;Then access node creates a cloud response message, and wherein data name thresholding is N1, Type of message thresholding is 9, loads the life cycle for data C1 and data C1, as preserves data C1 cloud storage list item Life span thresholding;

Step 716:If couple in router or access node create or receive cloud response message, step is performed 717, otherwise perform step 718;

Step 717:Couple in router or access node are directed to the polymerization that each data name thresholding is N1 in Aggregation Table List item is proceeded as follows:The cloud response message is forwarded from the interface domain of the polymerization list item, this is then deleted from Aggregation Table and is gathered List item is closed, step 716 is performed;

Step 718:User equipment D4 is received after cloud response message, and a cloud storage list item is created in cloud storage table, should The data name thresholding of cloud storage list item is N1, and data thresholding is C1, and life span thresholding is the existence week in cloud response message Time value, user equipment D4 is converted to cloud member, performs step 401~409;

Step 719:Terminate.

Said process is able to ensure that user quickly correctly obtains required data.

Embodiment 1

Based on the simulation parameter of table 1, the present embodiment simulates the network data communication method in the present invention, and performance evaluation is such as Under:When user velocity is constant, with the increase of cloud number of members, distribution area is more extensive, therefore obtains the delay of service data All decline therewith with cost.The average retardation that vehicle node obtains service data is 60ms, and average cost is 7.5.

The simulation parameter of table 1

The invention provides a kind of thinking of the network data communication method based on cloud, the side of the technical scheme is implemented Method and approach are a lot, and described above is only the preferred embodiment of the present invention, it is noted that for the common skill of the art For art personnel, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications Also it should be regarded as protection scope of the present invention.Each component part being not known in the present embodiment can use prior art to be realized.

Claims (6)

1. a kind of network data communication method based on cloud, it is characterised in that the network includes backbone network and access network, bone Dry net includes P;Access network includes more than one couple in router, access node and user equipment;Access Router and access node are fixing equipment and position is immovable, and the position of user equipment can be moved;In access network The topological structure of fixing equipment is tree, wherein, leaf node is access node, and root node and intermediate node are access road By device;Access node has a wave point and a wireline interface, and wireline interface is used to connect father node, and wave point is used for User equipment is connected, access node jumps reachable with user equipment one;Key route in the root node and backbone network of access network Device is connected, and two access networks are realized by backbone network and communicated;User equipment passes through the access section in the range of oneself jump Point realizes communication, and an access node and the user equipment by access node realization communication constitute a data name Domain, a data title-domain by the data name domain access node name prefix unique mark;One user equipment both may be used Using the supplier as data, can also as data consumer;
A type of data are defined by a data name, and a data name is made up of name prefix and title ID, name Prefix is claimed to be divided into more than two levels;If the name prefix of an intermediate node or leaf node is constituted by p layers, p>1, The name prefix of the father node of intermediate node or leaf node is constituted by q layers, q>1,p>Q, then intermediate node or leaf Preceding q layers of the name prefix of node are equal to the name prefix of the father node of oneself;Each couple in router in access network or Person's access node is by a name prefix unique mark, and each intermediate node or leaf node are inherited before the title of its father node Sew;
User equipment, access node, couple in router or P realize data communication by message;Access network is sent out The type of message thresholding of cloth message is 1;The type of message thresholding that backbone network gives out information is 2;Cloud creates the message class of message Type thresholding is 3;The type of message thresholding that cloud creates response message is 4;The type of message thresholding that cloud creates confirmation message is 5;Cloud The type of message thresholding of handover request is 6;The type of message thresholding that cloud deletes message is 7;The message type field of cloud request message It is worth for 8;The type of message thresholding of cloud response message is 9;
Access network and backbone network realized by forward table and communicated, a forward table forwarding-table item is by network prefix domain and connects Mouth domain Liang Ge domains are constituted;
Access network gives out information, backbone network gives out information, cloud creates message, cloud and deletes message, cloud request message by data Two domains of title-domain and message type field are constituted;
Cloud creates response message, cloud and creates confirmation message, cloud handover request, cloud response message by data name domain, type of message Domain and three, domain of load domain are constituted;
Intermediate node or leaf node in access network set up forward table by following processes:
Step 101:Start;
Step 102:Intermediate node or leaf node build an access network and given out information, the data that access network gives out information Name prefix in title-domain is identifies the name prefix of the intermediate node and leaf node, and name ID is 0, type of message thresholding For 1, intermediate node and leaf node send the access network from the interface being connected with father node and given out information;
Step 103:The interface f that father node is connected from the intermediate node and leaf node given out information with transmission access network is received After being given out information to access network, a forwarding-table item is created in forward table, the name prefix domain of forwarding-table item is access network Network give out information in name prefix, interface thresholding be f;
Step 104:Terminate;
Root node, intermediate node or leaf node in access network are received after access network gives out information, and are first looked at and are turned Deliver, if the name prefix during the name prefix thresholding of at least one forwarding-table item gives out information with access network is matched Degree is higher than the matching degree of the name prefix in the name prefix and message of oneself, then selects name prefix matching degree highest Forwarding-table item, and the access network received from the forwarding of the interface domain of the forwarding-table item gives out information;Otherwise, then saved from father The access network that point or the connected interface forwarding of P are received gives out information;The matching degree refers to two names Prefix is claimed to be contrasted since first place, consecutive identical digit is more, it was demonstrated that the matching degree of the two name prefixes is higher.
2. a kind of network data communication method based on cloud according to claim 1, it is characterised in that the backbone network Forward table to set up process as follows:
Step 201:Start;
Step 202:The root node of access network builds a backbone network and given out information, the data name that backbone network gives out information Name prefix in domain is called the name prefix of oneself, and name ID is 0, and type of message is 2;
Step 203:The interface that root node is connected from P sends the backbone network and given out information;
Step 204:P is received after backbone network gives out information from the interface f1 of oneself, judge in forward table whether There is name prefix domain is the forwarding-table item that name prefix and interface thresholding during backbone network gives out information are f1, if it does, Step 206 is performed, step 205 is otherwise performed;
Step 205:P creates a forwarding-table item, and the name prefix domain of the forwarding-table item gives out information for backbone network In name prefix, interface thresholding be f1, then from each and the connecing that other P are connected in addition to interface f1 Mouth forwarding backbone network gives out information, and performs step 204;
Step 206:Terminate;
3. a kind of network data communication method based on cloud according to claim 2, it is characterised in that a type of number Produced according to by an access cloud, the access cloud is defined by the data name of definition this type data, can produce, preserves and carry It is referred to as cloud member for the user equipment or access node of data defined in access cloud;
Access cloud is preserved and provided the data that access cloud is defined using cloud storage table, and a cloud storage list item includes three domains: Data name domain, data field and life span domain;Wherein data name domain is used for defining a type of data, and data field is used In the data of storage this type, life span is used to define the life times of this kind of data, when life time decays to 0, then The cloud storage list item is automatic to be deleted from cloud storage table;
Data consumer obtains data using concordance list and Aggregation Table;Concordance list is used for the information for preserving access cloud member, gathers Conjunction table is used for the polymerization for realizing cloud request;Index list item is made up of data name domain, interface domain and life cycle domain;When life Between decay to 0, then the index list item is automatic deletes from concordance list;Polymerization list item is made up of data name domain and interface domain;
It is NP1 in data name N1 name prefix, title ID is NID1, and the data that data name N1 is defined are C1, data C1 Maximum lifetime be T1, access node CAP1 be located at data name domain ND1 in, access node CAP1 is by name prefix NP1 Mark;Data C1 can be divided into n partial data, and the union of n partial data is equal under conditions of data C1, and n values are Natural number;
If access node CAP1 is uniquely to have permission the access node for producing data C1, access node CAP1 is accessed by creating Cloud AC1 creates data C1, and access cloud AC1 is defined by data name N1, then the process for creating data C1 comprises the following steps:
Step 301:Start;
Step 302:Access node CAP1 sends cloud by wave point and creates message, and the title-domain that cloud creates message is data name Claim N1, type of message thresholding is 3;
Step 303:Data C1 or data C1 partial data can be provided if receiving the user equipment of cloud establishment message, Then return to a cloud and create response message, the data name that the cloud creates response message is N1, and type of message thresholding is 4, load Thresholding is the data provided;
Step 304:Access node CAP1 receives the data name thresholding of all returns and created for N1 cloud after response message, will The load thresholding that cloud creates response message is performed and operated to be built into data C1, and a cloud storage table is created in cloud storage table , in the cloud storage list item, data name thresholding is N1, and data thresholding is C1, and life span thresholding is T1;Access node CAP1 By oneself cloud member labeled as access cloud AC1, while sending cloud by wave point creates confirmation message, the cloud, which is created, to be confirmed The data name of message is N1, and type of message thresholding is 5, and load thresholding is data C1, and life span is T1;
Step 305:User equipment receives cloud and created after confirmation message, and a cloud storage list item is created in cloud storage table, and the cloud is deposited Store up in list item, data name thresholding is N1, data thresholding is C1, and life span thresholding is T1;Oneself is labeled as by user equipment Access cloud AC1 cloud member;
Step 306:Terminate;
If data C1 life span decays to 0, the cloud storage table that data name thresholding is N1 is deleted from cloud storage table , access node CAP1 creates data C1 again by performing step 301~step 306.
4. a kind of network data communication method based on cloud according to claim 1, it is characterised in that user equipment D3 is Access cloud AC1 cloud member, using the teaching of the invention it is possible to provide data C1, data name domain ND2 access node are CAP2, access node CAP2 by Name prefix NP2 is identified, if user equipment D3 is moved to data name domain ND2 from data name domain ND1, then performed following Mobile handoff is operated:
Step 401:Start;
Step 402:User equipment D3 sends cloud handover request to access node CAP2, and the title thresholding of cloud handover request is N1, Type of message thresholding is 6, and load thresholding is the life span thresholding T2 in data C1 and preservation data C1 cloud storage list item;
Step 403:Access node CAP2 is received after cloud handover request from wave point w, checks that concordance list judges whether number According to the index list item that title thresholding is N1, if it does, carrying out step 409, step 404 is otherwise performed;
Step 404:Access node CAP2 creates an index list item, and the data name thresholding of the index list item is N1, interface domain It is worth for w, life span is the life span in the cloud handover request received;Access node CAP2 is from connecing for being connected with father node Mouth forwards the cloud handover request;
Step 405:Father node receives cloud handover request from the interface f2 of oneself, checks that concordance list judges whether data name Thresholding is N1 index list item, if it does, carrying out step 406, otherwise performs step 407;
Step 406:The interface f2 of oneself is added in interface domain of the data name thresholding for N1 index list item by father node, is held Row step 409;
Step 407:Father node creates an index list item, and the data name thresholding of the index list item is N1, and interface thresholding is f2, Life span is the life span in the cloud handover request received, if father node is the root node of access network, is performed Step 409, step 408 is otherwise performed;
Step 408:The interface that father node is connected from the father node with oneself forwards the cloud handover request, performs step 405;
Step 409:Terminate;
User equipment D3 is performed after mobile handoff, periodically sends beacon frame, and beacon frame load is data name N1;
Access node periodically sends beacon frame, and beacon frame load is the mark name prefix of oneself;
If access node CAP2 does not receive beacon frame of the load for data name N1 at the appointed time, following ropes are performed Draw table and update step:
Step 501:Start;
Step 502:Access node CAP2 deletes the index list item that data name is N1 from concordance list, from what is be connected with father node Interface sends cloud and deletes message, and data name domain is N1, and message type field is 7;
Step 503:Father node receives cloud from the interface f3 of oneself and deletes message, checks that data name thresholding is N1's in concordance list List item is indexed, and interface f3 is deleted from the interface domain of the index list item, if the interface thresholding is sky, step 504 is carried out, it is no Then perform step 506;
Step 504:Father node deletes the index list item that data name thresholding is N1, judges whether oneself is root node, if it is, Step 506 is then performed, step 505 is otherwise performed;
Step 505:The interface that father node is connected from the father node with oneself forwards the cloud to delete message, performs step 503;
Step 506:Terminate.
5. a kind of network data communication method based on cloud according to claim 4, it is characterised in that in user equipment D6 In title-domain ND2, title-domain ND2 access node is CAP2, and data C2 is defined by data name N2, data name N2's Name prefix be NP2 under conditions of, if access node CAP2 defined by name prefix NP2 or access node CAP2 index There is the index list item that data name thresholding is N2 in table, then user equipment D6 is then according to following Procedure Acquisition data C2:
Step 601:Start;
Step 602:User equipment D6 creates a cloud request message, and data name thresholding is N2, and type of message thresholding is 8, will Cloud request message is sent to access node CAP2;
Step 603:Wave point fs of the access node CAP2 from oneselfLReceive after cloud request message, one is created in Aggregation Table It polymerize list item, the data name thresholding of the polymerization list item is N2, and interface thresholding is fL
Step 604:Access node CAP2 judges whether there was only polymerization list item of the item data title thresholding for N2 in Aggregation Table, such as Fruit is to carry out step 605, otherwise carries out step 608;
Step 605:Judge whether access node CAP2 is identified by name prefix NP2, if it is, carrying out step 606, otherwise perform Step 607;
Step 606:If access node CAP2, without data C2 is preserved, performs step 301~306 and created in cloud storage table Data C2;Then access node CAP2 creates a cloud response message, and wherein data name thresholding is N2, and type of message thresholding is 9, load as data C2, data C2 life cycle, as preserve the life span thresholding of data C2 cloud storage list item, then Perform step 608;
Step 607:Access node CAP2 forwards the cloud request message that receives from wave point, using the teaching of the invention it is possible to provide data C2 cloud into Member is received after the cloud request message, creates a cloud response message, wherein data name thresholding is N2, and type of message thresholding is 9, the life cycle for data C2 and data C2 is loaded, the life span thresholding of data C2 cloud storage list item is as preserved, Then cloud response message is sent to access node CAP2;
Step 608:Access node CAP2 is created or received after cloud response message, is N1's for each data name thresholding It polymerize list item, access node CAP2 is proceeded as follows:The cloud response message, Ran Houcong is forwarded from the interface domain of the polymerization list item The polymerization list item is deleted in Aggregation Table;
Step 609:User equipment D6 is received after cloud response message, and a cloud storage list item is created in cloud storage table, and the cloud is deposited The data name thresholding for storing up list item is N2, and data thresholding is C2, and life span thresholding is value life cycle in cloud response message, User equipment D6 is converted to cloud member;
Step 610:Judge whether access node CAP2 is identified by name prefix NP2, if it is, performing step 612, otherwise perform Step 611;
Step 611:User equipment D6 performs step 401~409;
Step 612:Terminate.
6. a kind of network data communication method based on cloud according to claim 5, it is characterised in that user equipment D4 In title-domain ND2, title-domain ND2 access node is CAP2, and data C1 is defined by data name N1, data name N1 name Prefix is called NP1, and access node CAP2 is defined by name prefix NP2, and access node CAP1 is defined with name prefix NP1, if Access node CAP2 does not have the index list item that data name thresholding is N1 in concordance list, then user equipment D4 is then according to following Procedure Acquisition data C1:
Step 701:Start;
Step 702:User equipment D4 creates a cloud request message, and wherein data name thresholding is N1, and type of message thresholding is 8, load as sky, cloud request message is then sent to access node CAP2;
Step 703:Wave point fs of the access node CAP2 from oneselfLReceive after cloud request message, one is created in Aggregation Table It polymerize list item, the data name thresholding of the polymerization list item is N1, and interface thresholding is fL
Step 704:Access node CAP2 judges whether there was only polymerization list item of the item data title thresholding for N1 in Aggregation Table, such as Fruit is to carry out step 705, otherwise carries out step 716;
Step 705:Access node CAP2 forwards cloud request message from the interface being connected with father node;
Step 706:Couple in router or access node receive cloud request message from the interface f4 of oneself, are created in Aggregation Table A polymerization list item is built, the data name thresholding of the polymerization list item is N1, and interface thresholding is f4
Step 707:Judge that the couple in router or access node that receive cloud request message judge whether only have in Aggregation Table One item data title thresholding is N1 polymerization list item, if it is, carrying out step 708, otherwise carries out step 716;
Step 708:If couple in router receives cloud request message and does not have data name thresholding to be N1's in concordance list List item is indexed, then performs step 709, step 711 is otherwise performed;
Step 709:The couple in router for receiving cloud request message checks forward table, if the name of at least one forwarding-table item Prefix thresholding and name prefix NP1 matching degree is claimed to be more than the matching degree of the name prefix of oneself and name prefix NP1, then The forwarding-table item for selecting name prefix matching degree maximum, then forwards cloud request message from the interface domain of the forwarding-table item;It is no Then, cloud request message is forwarded from the interface being connected with father node;
Step 710:The couple in router for receiving cloud request message performs step 706;
Step 711:If couple in router receives cloud request message and has the rope that data name thresholding is N1 in concordance list Draw list item, then perform step 712, otherwise perform step 713;
Step 712:The interface domain for the index list item that the couple in router for receiving cloud request message is N1 from data name thresholding Cloud request message is forwarded, step 706 is performed;
Step 713:If access node receives cloud request message and has the index that data name thresholding is N1 in concordance list List item, then perform step 714, otherwise performs step 715;
Step 714:The access node for receiving cloud request message forwards the cloud received request to disappear from the interface domain of forwarding-table item Breath, using the teaching of the invention it is possible to provide data C1 cloud member is received after the cloud request message, creates a cloud response message, wherein data name Thresholding is N1, and type of message thresholding is 9, loads the life cycle for data C1 and data C1, as preserves data C1 cloud The life span thresholding of storage item, is then sent to the access node by cloud response message, performs step 716;
Step 715:If the access node for receiving cloud request message is no in cloud storage table to preserve data C1, step is performed Rapid 301~306 create data C1;Then access node creates a cloud response message, and wherein data name thresholding is N1, message Type thresholding is 9, loads the life cycle for data C1 and data C1, as preserves the existence of data C1 cloud storage list item Time thresholding;
Step 716:If couple in router or access node create or received cloud response message, step 717 is performed, Otherwise step 718 is performed;
Step 717:Couple in router or access node are directed to the polymerization list item that each data name thresholding is N1 in Aggregation Table Proceed as follows:The cloud response message is forwarded from the interface domain of the polymerization list item, the Aggregation Table is then deleted from Aggregation Table , perform step 716;
Step 718:User equipment D4 is received after cloud response message, and a cloud storage list item is created in cloud storage table, and the cloud is deposited The data name thresholding for storing up list item is N1, and data thresholding is C1, and life span thresholding is value life cycle in cloud response message, User equipment D4 is converted to cloud member, performs step 401~409;
Step 719:Terminate.
CN201710196876.1A 2017-03-29 2017-03-29 A kind of network data communication method based on cloud CN107071011B (en)

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