CN109831533A - A kind of network node lookup method and device - Google Patents
A kind of network node lookup method and device Download PDFInfo
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- CN109831533A CN109831533A CN201910207758.5A CN201910207758A CN109831533A CN 109831533 A CN109831533 A CN 109831533A CN 201910207758 A CN201910207758 A CN 201910207758A CN 109831533 A CN109831533 A CN 109831533A
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Abstract
This application discloses a kind of network node lookup method and devices, are identified using the node region of network node to be found, search the network node for having same node point area identification with network node to be found；In the network node that there is same node point area identification with network node to be found found, the network node that there is same node point network identity with network node to be found is searched.Since the quantity of node region mark is far less than the quantity of node network identities, first search the network node that there is same node point area identification with the network node to be found, first search the network node for being located at same area with network node to be found, it being capable of rapid drop seeking scope, then it is being located in the network node of same area with network node to be found again, search the network node that there is same node point network identity with the network node to be found, accelerate search procedure, improves search efficiency.
Description
Technical field
The present invention relates to technical field of communication network, and in particular to a kind of network node lookup method and device.
Background technique
Presently, there are a variety of distributions constructed by DHT (Distributed Hash Table, distributed hashtable)
Network, the mode that binary chop is generallyd use in the distributed network carry out the addressing of network node, specifically search mode
Are as follows: assuming that the network identity of all-network node is all disposed in list of network identifications, the network identity in list of network identifications
Arranged according to ascending or descending order, the network identity for first recording list of network identifications middle position and network identity to be found into
Row XOR operation searches success if the two is identical；Otherwise list of network identifications is divided into forward and backward two using middle position
A sublist, according to the network identity of middle position record and the size relation of network identity to be found, in former and later two sublists
Determine the target sublist that requires to look up in next step, above-mentioned search procedure then repeated in target sublist, until find with to
Network Search identifies identical network identity, prompts to search successfully；Or until sublist is not present, prompt to search failure.
But with the development of network technology, the increase of number of network users, the net in distributed network constructed based on DHT
Magnanimity state is presented in network number of nodes, carries out network by the way of binary chop in the prior art in mass network node
The lookup of node then has that search efficiency is low.
Summary of the invention
In view of this, the embodiment of the present invention provides a kind of network node lookup method and device, search efficiency can be improved.
A kind of network node lookup method, comprising:
It is identified using the node region of network node to be found, searching has same node point with the network node to be found
The network node of area identification a, wherein network node corresponds to unique node region mark；
In finding the network node that there is same node point area identification with the network node to be found, search with
The network node to be found has the network node of same node point network identity, wherein a network node corresponds to a unique section
Spot net mark.
Preferably, it is identified using the node region of network node to be found, searches and have with the network node to be found
Before the network node for having same node point area identification, further includes:
Establish node route list, the node region mark comprising all-network node in network in the node route list with
And node network identities.
Preferably, the node region using network node to be found identifies, and searches and the network node to be found
The process of node with same node point area identification includes:
It is identified using the node region of network node to be found, in node route list, is searched and the network to be found
Node has the network node of same node point area identification.
Preferably, described in the node with the network node to be found with same node point area identification found
In, the process for searching the node for having same node point network identity with the network node to be found includes:
Using the node network identities of network node to be found, there is phase with the network node to be found what is found
In network node with node region mark, according to node route list, searching has identical section with the network node to be found
The network node of spot net mark.
Preferably, in node route list, can not find has same node point region with the network node to be found
The network node of mark, or the network node that there is same node point network identity with the network node to be found can not be searched
In the case where, the node region using network node to be found identifies, and searching has phase with the network node to be found
The process of network node with node region mark includes:
Using network node to be found node region identify, in pre-set node standby routing table, search with
The network node to be found has the network node of same node point area identification；
It is described to find with network node of the network node to be found with same node point area identification, it looks into
It looks for and includes: with the process of network node that the network node to be found has same node point network identity
Using the node network identities of network node to be found, there is phase with the network node to be found what is found
In network node with node region mark, according to pre-set node standby routing table, search and the network to be found
Node has the network node of same node point network identity.
A kind of network node lookup device, comprising:
First network node checks module, for using network node to be found node region identify, search with it is described
Network node to be found has the network node of same node point area identification, wherein a network node corresponds to unique node area
Domain identifier；
Second network node searching module, for there is same node point area with the network node to be found what is found
In the network node of domain identifier, the network node that there is same node point network identity with the network node to be found is searched,
In, a network node corresponds to unique node network identities.
Preferably, further includes:
Node route list establishes module, includes to own in the node route list in network for establishing node route list
The node region of network node identifies and node network identities.
Preferably, the first network node checks module includes:
First network node checks submodule, for being identified using the node region of network node to be found, on node road
By searching the network node that there is same node point area identification with the network node to be found in table.
Preferably, the second network node searching module includes:
Second network node searches submodule, for the node network identities using network node to be found, is finding
The network node with the network node to be found with same node point area identification in, according to node route list, search with
The network node to be found has the network node of same node point network identity.
Preferably, which is characterized in that in node route list, can not find has phase with the network node to be found
With the network node of node region mark, or can not search with the network node to be found with same node point network identity
Network node in the case where, the first network node checks module is specifically used for: using network node to be found node
Area identification, in pre-set node standby routing table, searching has same node point area with the network node to be found
The network node of domain identifier；
The second network node searching module is specifically used for: the node network identities of network node to be found are utilized,
In the network node with the network node to be found with same node point area identification found, according to pre-set section
Point route stand-by table, searches the network node for having same node point network identity with the network node to be found.
Based on the above-mentioned technical proposal, the embodiment of the invention discloses a kind of network node lookup method and device, pass through benefit
It is identified with the node region of network node to be found, searching has same node point area identification with the network node to be found
Network node a, wherein network node corresponds to unique node region mark；Finding with the network node to be found
In network node with same node point area identification, searching has same node point network identity with the network node to be found
Network node, wherein a network node corresponds to unique node network identities.Since the quantity of node region mark is much few
In the quantity of node network identities, the network section that there is same node point area identification with the network node to be found is first searched
Point is first searched and is located at the network node of same area with network node to be found, can rapid drop seeking scope, then again
It is being located in the network node of same area with network node to be found, searching has identical section with the network node to be found
The network node of spot net mark, accelerates search procedure, improves search efficiency.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is a kind of flow chart of network node lookup method provided in an embodiment of the present invention；
Fig. 2 is the flow chart of another network node lookup method provided in an embodiment of the present invention；
Fig. 3 is the flow chart of another network node lookup method provided in an embodiment of the present invention；
Fig. 4 is the structural block diagram that a kind of network node provided in an embodiment of the present invention searches device.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The network-based three-layer structure of network node lookup method, the bottom disclosed in the embodiment of the present invention are
Internet, middle layer are DHT addressable network, and upper layer is virtual network, and each network node is arranged in virtual network, empty
The address of each network node in quasi- network uses IPv6 address format, IPv6 address format can greatly extended address can
With space, therefore the virtual network in the application has and accommodates mass network address of node space, also, all in network
Network node is addressed in the same address space using IPv6, and existing network application seamless can use.Net in the application
Network node checks method executes in DHT addressable network.
Fig. 1 shows a kind of flow chart of network node lookup method, referring to Fig.1, the method may include:
Step S100, it is identified using the node region of network node to be found, searches and have with the network node to be found
There is the network node of same node point area identification；
It should be noted that a network node corresponds to unique node region mark, what node region mark indicated is section
The area information of point, i.e. the actual geographic region information of node, optionally, the node region mark in the embodiment of the present invention
Including at least geographical location mark or operator identifier etc..Geographical location mark can specifically be divided into according to the size of range:
Country identification, province, city mark or area mark etc., can be set by technical staff, the embodiment of the present invention and without limit
It is fixed.Operator identifier can also be used as effective region division and identify, the corresponding region of different operators, because
This, can choose operator also to realize the selection to region in the application, wherein an operator identifier is for indicating unique one
Kind operator.
Optionally, can use sequential search mode in the embodiment of the present invention and search has with the network node to be found
The network node of same node point area identification, can also be searched using other lookup modes in the embodiment of the present invention with it is described to be checked
Look for network node that there is the network node of same node point area identification, the embodiment of the present invention is not specifically limited.
Step S110, in the network node with the network node to be found with same node point area identification found
In, search the network node that there is same node point network identity with the network node to be found；
It should be noted that a network node corresponds to unique node network identities, what node network identities indicated is section
The network address information of point, optionally, node network identities in the embodiment of the present invention can be the address node IP v6, can be with
For the mark of other network address that can indicate node, the embodiment of the present invention is simultaneously not specifically limited.
Interior joint network identity of the embodiment of the present invention is set as the address node IP v6, and the address IPv6 is transparent to application, any
It can use the address IPv6 on network using the application of the agreements such as tcp/ip or http freely to use, do not need to carry out agreement suitable
Match, existing network protocol can be compatible with, there is versatility.
Optionally, it can use sequential search mode or binary chop mode in the embodiment of the present invention finding and institute
Network node to be found is stated in the network node of same node point area identification, lookup has with the network node to be found
The network node of same node point network identity can also be being found and institute using other lookup modes in the embodiment of the present invention
Network node to be found is stated in the network node of same node point area identification, lookup has with the network node to be found
The network node of same node point network identity, the embodiment of the present invention are not defined.
The setting identified in the embodiment of the present invention by treating the node region of Network Search node, can be by net to be found
The regional location of network node is set as the area close with the regional location of the upper level network node of the network node to be found
Domain position, to guarantee selection and the closer network node to be found of upper level network node, such as by network section to be found
The regional location of point is set as being located at the same area with upper level network node, due to the network node in the same region,
The network quality that interconnects is higher, can promote learn from each other between the network node success rate of address and the efficiency of lookup,
Improve data transfer performance.
Network node lookup method in the embodiment of the present invention passes through the node region mark using network node to be found
Know, search the network node that there is same node point area identification with the network node to be found, wherein a network node is corresponding
Unique node region mark；In the network section with the network node to be found with same node point area identification found
In point, the network node that there is same node point network identity with the network node to be found is searched, wherein a network node pair
Answer unique node network identities.Since the quantity of node region mark is far less than the quantity of node network identities, first search
There is the network node of same node point area identification with the network node to be found, i.e., first search and network node position to be found
In the network node of same area, can rapid drop seeking scope, be then located at same zone with network node to be found again
In the network node in domain, the network node that there is same node point network identity with the network node to be found is searched, accelerates to look into
Process is looked for, search efficiency is improved.
Fig. 2 shows the flow chart of another network node lookup method, referring to Fig. 2, the method may include:
Step S200, node route list is established；
It should be noted that node region mark comprising all-network node in network in the node route list and
Node network identities.
The routing iinformation of node is contained in node route list.
Optionally, the embodiment of the present invention can separately include two sublists in node route list, and one is node region
Identification list, another is node network identities list, and the content for including in node region identification list is each network in network
The node region of node identifies, and the content for including in node network identities list is the meshed network mark of each network node in network
Know.
Optionally, the embodiment of the present invention, can be according to the update of network node in network after establishing node route list
Situation is in time updated the information in node route list, guarantees the accuracy of information in node route list.
Step S210, using network node to be found node region identify, in node route list, search with it is described to
Network Search node has the network node of same node point area identification.
Specifically, can use the node region mark of network node to be found in the embodiment of the present invention, in node-routing
In node region identification list in table, the node that there is same node point area identification with the network node to be found is searched.
Step S220, using the node network identities of network node to be found, finding with the network to be found
Node has in the network node of same node point area identification, according to node route list, searches and the network node to be found
Network node with same node point network identity.
Specifically, can use the node network identities of network node to be found in the embodiment of the present invention, what is found
In the network node with the network node to be found with same node point area identification, according to the node net in node route list
Network identification list searches the network node for having same node point network identity with the network node to be found.
Network node lookup method in the embodiment of the present invention, by establishing node route list；Utilize network section to be found
The node region mark of point, in node route list, searching has same node point area identification with the network node to be found
Network node；Using the node network identities of network node to be found, have what is found with the network node to be found
In the network node for having same node point area identification, according to node route list, searching has phase with the network node to be found
With the network node of node network identities.Since the quantity of node region mark is far less than the quantity of node network identities,
The network node that there is same node point area identification with the network node to be found is first searched in node route list, i.e., first searches
Be located at the network node of same area with network node to be found, can rapid drop seeking scope, then again with it is to be found
Network node is located in the network node of same area, and searching has same node point network identity with the network node to be found
Network node, accelerate search procedure, improve search efficiency.
In network node search procedure, often due to network failure or node failure etc., cause to inquire
It interrupts；Error message is returned if there is malicious node, also results in network interruption, inquiry failure.It is embodied in node
In routing table, the network node that there is same node point area identification with the network node to be found, Huo Zhewu can not be found
Method searches the network node for having same node point network identity with the network node to be found.In order to solve this problem, it mentions
For following examples:
In node route list, the net that there is same node point area identification with the network node to be found can not be found
Network node, or can not search there is the case where network node of same node point network identity with the network node to be found
Under, the embodiment of the invention discloses another network node lookup method, Fig. 3 shows another network node lookup method
Flow chart, reference Fig. 3, the method may include:
Step S300, it is identified using the node region of network node to be found, in pre-set node standby routing table
In, search the network node that there is same node point area identification with the network node to be found；
The embodiment of the present invention has preset node standby routing table, and node standby routing table is to the standby of node route list
Part, node region mark and node network identities comprising all-network node in network in the node standby routing table.
Optionally, the embodiment of the present invention can separately include two sublists in node standby routing table, and one is node
Backup area identification list is the backup to node region identification list；Another is node standby list of network identifications, is pair
The backup of node network identities list.The content for including in node standby area identification list is the section of each network node in network
Area identification is put, the content for including in node standby list of network identifications is the node network identities of each network node in network.
Step S310, using the node network identities of network node to be found, finding with the network to be found
Node has in the network node of same node point area identification, according to pre-set node standby routing table, search with it is described
Network node to be found has the network node of same node point network identity.
The embodiment of the present invention, search interrupt or search failure, cause in node route list, can not find with it is described
Network node to be found has the network node of same node point area identification, or can not search and the network node to be found
In the case where network node with same node point network identity, then it can be immediately redirected to node standby routing table, in node
The search procedure that network node is re-executed in route stand-by table guarantees the connectivity of network, improves network anti-interference ability, and
When make recoverys to searching failure, guarantee network node is searched successfully.Improve data transfer safety.
It searches device to network node provided in an embodiment of the present invention below to be introduced, network node described below is looked into
Look for device that can correspond to each other reference with network node lookup method above.
Fig. 4 is the structural block diagram that network node provided in an embodiment of the present invention searches device, referring to Fig. 4, the network node
Searching device may include:
First network node checks module 100, for being identified using the node region of network node to be found, lookup and institute
State the network node that network node to be found has same node point area identification；
It should be noted that a network node corresponds to unique node region mark, what node region mark indicated is section
The area information of point, i.e. the actual geographic region information of node, optionally, the node region mark in the embodiment of the present invention
Including at least geographical location mark or operator identifier etc..Geographical location mark can specifically be divided into according to the size of range:
Country identification, province, city mark or area mark etc., can be set by technical staff, the embodiment of the present invention and without limit
It is fixed.
Optionally, can use sequential search mode in the embodiment of the present invention and search has with the network node to be found
The network node of same node point area identification, can also be searched using other lookup modes in the embodiment of the present invention with it is described to be checked
Look for network node that there is the network node of same node point area identification, the embodiment of the present invention is not specifically limited.
Second network node searching module 110, for there is identical section with the network node to be found what is found
In the network node of point area identification, the network section that there is same node point network identity with the network node to be found is searched
Point.
It should be noted that a network node corresponds to unique node network identities, what node network identities indicated is section
The network address information of point, optionally, node network identities in the embodiment of the present invention can be the address node IP v6, can be with
For the mark of other network address that can indicate node, the embodiment of the present invention is simultaneously not specifically limited.
Interior joint network identity of the embodiment of the present invention is set as the address node IP v6, and the address IPv6 is transparent to application, any
It can use the address IPv6 on network using the application of the agreements such as tcp/ip or http freely to use, do not need to carry out agreement suitable
Match, existing network protocol can be compatible with, there is versatility.
Optionally, it can use sequential search mode or binary chop mode in the embodiment of the present invention finding and institute
Network node to be found is stated in the network node of same node point area identification, lookup has with the network node to be found
The network node of same node point network identity can also be being found and institute using other lookup modes in the embodiment of the present invention
Network node to be found is stated in the network node of same node point area identification, lookup has with the network node to be found
The network node of same node point network identity, the embodiment of the present invention are not defined.
The setting identified in the embodiment of the present invention by treating the node region of Network Search node, can be by net to be found
The regional location of network node is set as the area close with the regional location of the upper level network node of the network node to be found
Domain position mentions to guarantee the closer network node to be found of upper level network node of selection with network node to be found
High data transmission performance.
Further include:
Node route list establishes module, includes to own in the node route list in network for establishing node route list
The node region of network node identifies and node network identities.
The first network node checks module includes:
First network node checks submodule, for being identified using the node region of network node to be found, on node road
By searching the network node that there is same node point area identification with the network node to be found in table.
The second network node searching module includes:
Second network node searches submodule, for the node network identities using network node to be found, is finding
The network node with the network node to be found with same node point area identification in, according to node route list, search with
The network node to be found has the network node of same node point network identity.
In node route list, the net that there is same node point area identification with the network node to be found can not be found
Network node, or can not search there is the case where network node of same node point network identity with the network node to be found
Under, the first network node checks module is specifically used for: being identified using the node region of network node to be found, is set in advance
In the node standby routing table set, the network node that there is same node point area identification with the network node to be found is searched；
The second network node searching module is specifically used for: the node network identities of network node to be found are utilized,
In the network node with the network node to be found with same node point area identification found, according to pre-set section
Point route stand-by table, searches the network node for having same node point network identity with the network node to be found.
In summary:
The embodiment of the invention discloses a kind of network node lookup method and devices, by utilizing network node to be found
Node region mark, searches the network node for having same node point area identification with the network node to be found, wherein a net
Network node corresponds to unique node region mark；It is marked with the network node to be found with same node point region what is found
In the network node of knowledge, the network node that there is same node point network identity with the network node to be found is searched, wherein one
Network node corresponds to unique node network identities.Since the quantity of node region mark is far less than the number of node network identities
Amount, first search with the network node to be found have same node point area identification network node, i.e., first search with it is to be found
Network node is located at the network node of same area, can rapid drop seeking scope, then again with network node to be found
In the network node of same area, the network section that there is same node point network identity with the network node to be found is searched
Point accelerates search procedure, improves search efficiency.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.For device disclosed in embodiment
For, since it is corresponded to the methods disclosed in the examples, so being described relatively simple, related place is said referring to method part
It is bright.
Professional further appreciates that, unit described in conjunction with the examples disclosed in the embodiments of the present disclosure
And algorithm steps, can be realized with electronic hardware, computer software, or a combination of the two, in order to clearly demonstrate hardware and
The interchangeability of software generally describes each exemplary composition and step according to function in the above description.These
Function is implemented in hardware or software actually, the specific application and design constraint depending on technical solution.Profession
Technical staff can use different methods to achieve the described function each specific application, but this realization is not answered
Think beyond the scope of this invention.
The step of method described in conjunction with the examples disclosed in this document or algorithm, can directly be held with hardware, processor
The combination of capable software module or the two is implemented.Software module can be placed in random access memory (RAM), memory, read-only deposit
Reservoir (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or technology
In any other form of storage medium well known in field.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (10)
1. a kind of network node lookup method characterized by comprising
It is identified using the node region of network node to be found, searching has same node point region with the network node to be found
The network node of mark a, wherein network node corresponds to unique node region mark；
In finding the network node that there is same node point area identification with the network node to be found, search with it is described
Network node to be found has the network node of same node point network identity, wherein a network node corresponds to unique node net
Network mark.
2. the method according to claim 1, wherein using network node to be found node region identify,
Lookup has with the network node to be found before the network node of same node point area identification, further includes:
Establish node route list, node region mark and section comprising all-network node in network in the node route list
Spot net mark.
3. according to the method described in claim 2, it is characterized in that, the node region mark using network node to be found
Know, the process for searching the node for having same node point area identification with the network node to be found includes:
It is identified using the node region of network node to be found, in node route list, is searched and the network node to be found
Network node with same node point area identification.
4. according to the method described in claim 2, it is characterized in that, described have what is found with the network node to be found
In the node for having same node point area identification, the node that there is same node point network identity with the network node to be found is searched
Process include:
Using the node network identities of network node to be found, there is identical section with the network node to be found what is found
In the network node of point area identification, according to node route list, searching has same node point net with the network node to be found
The network node of network mark.
5. method according to any of claims 1-4, which is characterized in that in node route list, can not find
There is the network node of same node point area identification with the network node to be found, or can not search and the net to be found
In the case that network node has the network node of same node point network identity, the node region using network node to be found
Mark, the process for searching the network node for having same node point area identification with the network node to be found include:
Using network node to be found node region identify, in pre-set node standby routing table, search with it is described
Network node to be found has the network node of same node point area identification；
It is described in finding the network node that there is same node point area identification with the network node to be found, search with
There is the network node to be found the process of network node of same node point network identity to include:
Using the node network identities of network node to be found, there is identical section with the network node to be found what is found
In the network node of point area identification, according to pre-set node standby routing table, search and the network node to be found
Network node with same node point network identity.
6. a kind of network node searches device characterized by comprising
First network node checks module, for using network node to be found node region identify, search with it is described to be checked
Look for network node that there is the network node of same node point area identification, wherein a network node corresponds to unique node region mark
Know；
Second network node searching module, for being marked with the network node to be found with same node point region what is found
In the network node of knowledge, the network node that there is same node point network identity with the network node to be found is searched, wherein one
Network node corresponds to unique node network identities.
7. device according to claim 6, which is characterized in that further include:
Node route list establishes module, for establishing node route list, includes all-network in network in the node route list
The node region of node identifies and node network identities.
8. device according to claim 7, which is characterized in that the first network node checks module includes:
First network node checks submodule, for being identified using the node region of network node to be found, in node route list
In, search the network node that there is same node point area identification with the network node to be found.
9. device according to claim 7, which is characterized in that the second network node searching module includes:
Second network node searches submodule, for the node network identities using network node to be found, find with
The network node to be found has in the network node of same node point area identification, according to node route list, search with it is described
Network node to be found has the network node of same node point network identity.
10. according to device described in claim 6-9 any one, which is characterized in that in node route list, can not find
There is the network node of same node point area identification with the network node to be found, or can not search and the net to be found
In the case that network node has the network node of same node point network identity, the first network node checks module is specifically used
In: using network node to be found node region identify, in pre-set node standby routing table, search with it is described to
Network Search node has the network node of same node point area identification；
The second network node searching module is specifically used for: using the node network identities of network node to be found, searching
To with the network node to be found have same node point area identification network node in, it is standby according to pre-set node
Part routing table, searches the network node for having same node point network identity with the network node to be found.
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