CN109510766A - Dynamic routing method and system under a kind of intelligent terminal multiple-network connection environment - Google Patents
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/02—Topology update or discovery
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/302—Route determination based on requested QoS
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/54—Organization of routing tables
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/74—Address processing for routing
- H04L45/745—Address table lookup; Address filtering
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Abstract
The present invention is suitable for network technology improvement areas, provides the dynamic routing method under a kind of intelligent terminal multiple-network connection environment, comprising: S1, be defined description to the structural body of application scenarios；Unit group data structure in S2, definition routing policy；S3, routing policy and routing table be added in terminal initial；S4, corresponding scene sIndex is notified into routing daemon and searches the triple of matching scene sIndex in routing policy, find corresponding rIndex, and according to priority ranking；S5, when transmitting IP packet, judge whether IP packet matches routing table by kernel, if it matches, then IP packet is transmitted using the routing, if it does not match, searching next routing table up to the last one routing table.Terminal is made different IP to multi-network interface and is routed, to complete different business demands according to different scenes.
Description
Technical field
The invention belongs to the dynamics under network technology improvement areas more particularly to a kind of intelligent terminal multiple-network connection environment
Method for routing.
Background technique
Intelligent mobile terminal is more more and more universal, smart phone, the plate used such as individual consumer, in industry field
The internet of things equipment such as the smart machine terminal used and various smart home devices, robot, all have one or more nets
Network communication interface, can connect internet.But current smart machine, even if there are many network communication interfaces, such as WiFi and shifting
Dynamic cellular network (3G/4G and subsequent 5G data) interface, synchronization can only also open one of which.For example open WiFi
When, default can close data traffic.Data traffic is used to need first to close WiFi connection.Even if having opened simultaneously two kinds
Network does not have the function that different target is routed to according to different scenes yet.
In LTE private network application field, support the terminal of private network that can generally support public network, private network LTE and public network LTE two simultaneously
Activation can be opened simultaneously in a network theory, but because of the routing policy of operating system default, App is when in use only
It can connect to one of network, i.e., or under private network environment communicate or be connected under public network environment.It does not have same
When connect two independent networks, the function of heterogeneous networks destination address is routed a data packet to according to different business.
Such case will greatly limit the business function of smart machine.Such as a kind of usage scenario: smart machine needs logical
It crosses WiFi and is connected to an IP Camera, while the video flowing that will acquire being needed to pass through 4G remote transmission in real time to other platforms
It is broadcast live or stores；In the presence of private network and public network activate simultaneously for another example, there are the data of some security considerations to be stored in private network,
But these data in public network transmission or private network and public network while carrying out different data services after may needing to process.
Linux server has the support of more network interface cards very early, but server is usually that more network interface cards are connected to consolidated network
Environment shares bandwidth for doing load balancing.Redundancy backup either is done, enables another network interface card when a network interface card fails.
Therefore it is variant different networks to be connected to the different network interface cards of here.
Although router has the function of connecting multiple and different networks and routing, but because of operating system difference, function
It is that the data packet in some network interface source is gone out by judging that Target IP lookup routing table is routed to corresponding port,
Have a single function, routing table it is relatively fixed.And intelligent terminal inherently data source, different data and business may be routed to not
Same target.In addition, intelligent terminal generally all has mobility, IP sections of the network accessed in this way can change at any time, therefore
Need to make different routing policies according to different scenes, rather than the routing table that simple queries are fixed can be completed.
Patent H04L29/06 (2006.01) I refers to the method for improving bandwidth using the equipment communication resource, mainly not
Same process uses different network card interfaces.But we do not improve bandwidth at the object here, according to different scenes, IP
Packet is routed to different networks.And the same App of patent H04L29/06 (2006.01) I or process synchronization can only access one
A network interface card, and an App can access different network card interfaces simultaneously here.
Summary of the invention
The purpose of the present invention is to provide the dynamic routing method under a kind of intelligent terminal multiple-network connection environment, terminal roots
Different routing settings is made according to different business demand scene dynamics.Different data packets is allowed to reach different networks
Target, or by the private data of some network, processed or undressed forwarding shares to another network, reaches network bridging
Purpose.Certainly, there is different network routed paths if it is in order to reach same target, some scenes need to select the path A,
Its scene will select the problem of B path.
The invention is realized in this way the dynamic routing method under a kind of intelligent terminal multiple-network connection environment, described dynamic
State method for routing the following steps are included:
S1, description is defined to the structural body of application scenarios；
Unit group data structure in S2, definition routing policy；
S3, routing policy and routing table be added in terminal initial；
S4, corresponding scene sIndex is notified into routing daemon and searches the ternary of matching scene sIndex in routing policy
Group finds corresponding rIndex, and according to priority ranking；
S5, when transmitting IP packet, judge whether IP packet matches routing table by kernel, if it matches, then transmitting IP using the routing
Packet, if it does not match, searching next routing table until the last one routing table.
A further technical solution of the present invention is: further comprising the steps of in the step S3:
S31, newly-increased application scenarios Sm is inserted into application scenarios list, to the member sIndex and sName of application scenarios Sm
Assignment, wherein needing to guarantee that sIndex is unique in lists, member isWorking is defaulted as false；
S32, need to provide corresponding routing iinformation for newly-increased application scenarios, App or user, routing daemon is according to this letter
Breath increases one or more routing table newly in kernel, while increasing corresponding triple newly in routing policy.
A further technical solution of the present invention is: in the step S32 increase multiple routing tables correspondingly increase it is multiple
Triple.
A further technical solution of the present invention is: in the step S1 in the structural body description of building application scenarios at least
Including three members, sIndex is the unique identification of scene, and corresponding various scene indexes, sName is the title of corresponding scene,
IsWorking indicates whether that current time terminal is working on such scene.
A further technical solution of the present invention is: data structure < sIndex of the triple, rIndex, pValue
>, it indicates to require to look up routing table rIndex, priority pValue if scene is sIndex.
Another object of the present invention is to provide the dynamic routing system under a kind of intelligent terminal multiple-network connection environment, institutes
Stating dynamic routing system includes
Structural body constructs module, is defined description for the structural body to application scenarios；
Definition strategy module, for defining the multi-component system data structure in routing policy；
Adding module, for being added routing policy and routing table in terminal initial；
Sorting module notifies routing daemon and searches in routing policy to match scene for that will correspond to scene sIndex
The triple of sIndex finds corresponding rIndex, and according to priority ranking；
Matching module, for when transmitting IP packet, judging whether IP packet matches routing table by kernel, if it matches, then application should
Routing transmission IP packet, if it does not match, searching next routing table until the last one routing table.
A further technical solution of the present invention is: further including in the adding module
Newly-increased scene unit, the application scenarios Sm for will increase newly is inserted into application scenarios list, to the member of application scenarios Sm
SIndex and sName assignment, wherein needing to guarantee that sIndex is unique in lists, member isWorking is defaulted as false；
Routing table and tactful adding unit, for for newly-increased application scenarios, App or user to need to provide corresponding routing
Information, routing daemon increase one or more routing table newly according to this information in kernel, while newly-increased pair in routing policy
The triple answered.
A further technical solution of the present invention is: the routing table increases multiple routing table phases in tactful adding unit more
Increase multiple triples with answering.
A further technical solution of the present invention is: the structural body in the structural body building module in building application scenarios is retouched
Three members are included at least in stating, sIndex is the unique identification of scene, and corresponding various scene indexes, sName is corresponding scene
Title, isWorking indicates whether that current time terminal is working on such scene.
A further technical solution of the present invention is: data structure < sIndex of the triple, rIndex, pValue
>, it indicates to require to look up routing table rIndex, priority pValue if scene is sIndex.
It is individually handled the beneficial effects of the present invention are: different data is routed to different target, two network interface cards while independent work
Make, is equivalent to the network communicating function for completing two terminals；Data are gone out from a network interface card routing forwarding to another network interface card, are realized
The private data of some network is shared to another network.It is equivalent to the function of realizing router；Reaching same target can have
Multiple paths, select according to scene dynamics.For example network link 1 compares congestion in certain period, and link 2 is in the same period
Preferably.And other time section is in turn, network link 1 is more smooth than network link 2.Different fields can be so done according to the period
Scape makes different routings.Network congestion is one aspect, also can choose difference based on considerations such as internet securities
Routing.
Detailed description of the invention
Fig. 1 is the process of the dynamic routing method under intelligent terminal multiple-network connection environment provided in an embodiment of the present invention
Figure.
Fig. 2 is App data packet provided in an embodiment of the present invention by block architecture diagram.
Fig. 3 is that double netcard provided in an embodiment of the present invention works at the same time schematic diagram.
Fig. 4 is double netcard forwarding operation schematic diagram provided in an embodiment of the present invention.
Fig. 5 is that double netcard provided in an embodiment of the present invention reaches the same smooth operation schematic diagram of target.
Specific embodiment
As shown in Figure 1, the dynamic routing method under intelligent terminal multiple-network connection environment provided by the invention, is described in detail such as
Under:
The various network interface card resources of terminal, such as WiFi, Ethernet, LTE public network and LTE private network are enumerated, these network interface cards are numbered,
For simplicity, each network interface card resource is indicated with N1, N2 to Nn herein.
The various businesses scene that terminal possible application is arrived is enumerated, such as business demand: " network shooting is connected to by WiFi
Head, the video flowing that will acquire pass through LTE public network in real time and are transferred to remote server " a kind of usage scenario can be defined as.For another example
" data of enterprises private network need to share to other targets by public network " may be defined to another usage scenario.If connection
The network ip address section of private network has changed, then needs to define another scene.In this way, we various answer what client was likely to be encountered
It is respectively indicated with scene with S1, S2 to Sm.
The routing table that operating system nucleus is supported uses R0, R1 to Rn to indicate respectively.Routing table defines different Target IPs
It is routed away from different network interface card or gateway interface.Each routing table defines a priority, uses integer representation.All routing tables
It according to priority sorts from high to low, the routing table of routing Shi Xiancong highest priority is begun looking for.It is assumed that priority R0 > R1
> ... > Rn matches next routing table R1 then first matching with first routing table R0 when routing if it can not find, until last
One routing table Rr.
Routing policy defines the matching rule and priority of routing.The matching rule and priority of routing are defined as one
Triple<S, R, P>, S is scene, and R is routing table, and P is priority.I.e. this triple is indicated for scene S, Ke Yixuan
Select routing table R, priority P.Same scene can choose different routing tables, and the preferential application order of routing table is just
It is determined by priority P.
When App needs to communicate, App itself is known that now present application scenarios, can be by this applied field
Scape notifies or is broadcast to routing daemon, when routing daemon, which receives application scenarios, to be updated, searches for into routing policy structure
Corresponding routing table, and these routing tables are adjusted according to priority and are sorted.
Step S1 is defined description to the structural body of application scenarios；The structural body description of application scenarios is defined, at least
Comprising three members, sIndex is the unique identification of scene, and corresponding various scene indexes, sName is the title of corresponding scene,
IsWorking indicates whether that current time terminal is working on such scene.
Step S2 defines the unit group data structure in routing policy；Define the triple data for including in routing policy
Structure<sIndex, rIndex, pValue>, it indicates to require to look up routing table rIndex if scene is sIndex, it is excellent
First grade is pValue.
Routing policy and routing table are added by step S3 in terminal initial；Terminal initial uses, without applied field
Scape needs to add routing policy and routing table when routing policy is empty: newly-increased application scenarios Sm is inserted into application scenarios list
In, to member's sIndex and sName assignment of application scenarios Sm, wherein need to guarantee that sIndex is unique in lists, member
IsWorking is defaulted as false.For newly-increased application scenarios, App or user need to provide corresponding routing iinformation, road
By process according to this information, one or more routing table is increased newly in kernel, while increasing corresponding three newly in routing policy
Tuple.It is assumed that newly-increased routing table Rr is needed, then increase a triple<Sm in routing policy newly, Rr, P>.If there is
Multiple routing tables correspondingly increase multiple triples.
Corresponding scene sIndex is notified routing daemon and searches matching scene sIndex in routing policy by step S4
Triple, find corresponding rIndex, and according to priority ranking；It, first will be corresponding when App will be using a certain scene
Scene sIndex notifies routing daemon.Routing daemon searches for the triple that matching scene is sIndex in routing policy, looks for
To corresponding rIndex, and according to priority ranking.Then corresponding routing table is prioritized to move on in Kernel
Front end.
S5, when transmitting IP packet, judge whether IP packet matches routing table by kernel, if it matches, then passing using the routing
IP packet is sent, if it does not match, searching next routing table until the last one routing table.When App starts to transmit IP packet, IP packet
The 1st routing table is first matched by kernel, application routing, if do not matched, continues to search the 2nd routing if matching
Table.A to the last routing table.
Different data is routed to different target and individually handles, and two network interface cards work independently simultaneously, is equivalent to and completes two ends
The network communicating function at end；Data are gone out from a network interface card routing forwarding to another network interface card, realize the privately owned number some network
According to sharing to another network.It is equivalent to the function of realizing router；Multiple paths can be had by reaching same target, dynamic according to scene
State selection.For example network link 1 compares congestion in certain period, and link 2 is preferable in the same period.And other time section is anti-
Come over, network link 1 is more smooth than network link 2.So different scenes can be done according to the period, make different routings.
Network congestion is one aspect, also can choose different routings based on considerations such as internet securities.
Application scenarios indicate that three members are respectively sIndex, sName and isWorking with a structural body.It is multiple to answer
It is stored with scene with array data structure.
Routing policy can be defined as an array, and each element of array is a triple, can be defined as structure
Body, including member sIndex indicate a scene, and rIndex indicates routing table index and pValue is the priority of selection.
1. when increasing an application scenarios
1.1 in application scenarios array, to three member's assignment of array element.SIndex is that upper one value adds 1, if it is
First element, sIndex can be assigned a value of false for 1, isWorking.Defined variable sNum indicates total scene number.SNum is assigned
Value is newest sIndex.
1.2 for increased application scenarios, and user needs to provide routing iinformation.After routing daemon receives, in kernel original
A routing table is selected in some routing tables, increases routing rule.If there is a plurality of routing rule, need to be inserted into multiple routings
Table.Corresponding routing table insertion is then selected to update.Record the corresponding rIndex of these routing tables.
1.3 for increased application scenarios, and the routing iinformation that user provides includes priority level.The past routing plan of routing daemon
Slightly three member's assignment of array element.Several routing tables are had updated in 1.2, it is just corresponding here to be inserted into several element < sIndex,
rIndex,pValue>.Defined variable tNum indicates the actual element number of the array, initial value 0.Here several members are added
Element, tNum just increase accordingly several.Here we provide, the same sIndex, the element of insertion, according to pValue priority increment
Sequence.
2. being completed when thering are application scenarios to need to increase again referring to 1.
After the completion of the above operation, can guarantee application scenarios chained list and routing policy chained list member sIndex be incremented by or
Constant.This is conducive to the lookup of subsequent scenario.
3. when App is needed using certain scene
This scene index sIndex is notified routing daemon by 3.1 App
After 3.2 routing daemons obtain sIndex, all elements that scene is sIndex are searched in routing policy.Routing policy
It is indicated with T, Ti indicates i-th of element.The member that can be (sIndex/sNum) * tNum from routing policy array index when search
Element starts to search for.Allow i=(sIndex/sNum) * tNum.
If Ti.sIndex is just equal to sIndex, a target is found.Continue to continue toward the adjacent both sides of this element
Search all elements that scene is sIndex.If Ti.sIndex < sIndex, another i=(sIndex/sNum) * tNum+1；Such as
Fruit Ti.sIndex > sIndex, then another i=(sIndex/sNum) * tNum-1；It repeats to judge and calculate, until finding all targets
Until.
4. pair routing list sorting
According to the target that 3 steps are found, corresponding rIndex is extracted.Before the routing table of corresponding rIndex is moved on to most, meeting when routing
It matches at first.If there is multiple targets, then repeat repeatedly.Because of 1.3 regulations: the same sIndex, the element of insertion are pressed
It sorts according to pValue priority increment.It can be ensured that the routing table of highest priority, always up front.
5. routing table lookup and executing routing
App final IP data packet, the routing table in kernel are matched.It is matched since the routing table of highest priority,
Terminate to match if being matched to, and is routed according to corresponding routing table.If be not matched to, continue to match next
Routing table, until finding matched routing.If all routing tables all mismatch, this IP packet is abandoned.
Another object of the present invention is to provide the dynamic routing system under a kind of intelligent terminal multiple-network connection environment, institutes
Stating dynamic routing system includes
Structural body constructs module, is defined description for the structural body to application scenarios；
Definition strategy module, for defining the multi-component system data structure in routing policy；
Adding module, for being added routing policy and routing table in terminal initial；
Sorting module notifies routing daemon and searches in routing policy to match scene for that will correspond to scene sIndex
The triple of sIndex finds corresponding rIndex, and according to priority ranking；
Matching module, for when transmitting IP packet, judging whether IP packet matches routing table by kernel, if it matches, then application should
Routing transmission IP packet, if it does not match, searching next routing table until the last one routing table.
Further include in the adding module
Newly-increased scene unit, the application scenarios Sm for will increase newly is inserted into application scenarios list, to the member of application scenarios Sm
SIndex and sName assignment, wherein needing to guarantee that sIndex is unique in lists, member isWorking is defaulted as false；
Routing table and tactful adding unit, for for newly-increased application scenarios, App or user to need to provide corresponding routing
Information, routing daemon increase one or more routing table newly according to this information in kernel, while newly-increased pair in routing policy
The triple answered.
More multiple routing tables of increase correspondingly increase multiple triples in the routing table and tactful adding unit.
Three members are included at least in the structural body description of building application scenarios in the structural body building module,
SIndex is the unique identification of scene, and corresponding various scene indexes, sName is the title of corresponding scene, and isWorking instruction is
No current time terminal is working on such scene.
Data structure<sIndex of the triple, rIndex, pValue>, it indicates if scene is sIndex,
Require to look up routing table rIndex, priority pValue.
Terminal is made different IP to multi-network interface and is routed, to complete different business demands according to different scenes.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (10)
1. the dynamic routing method under a kind of intelligent terminal multiple-network connection environment, which is characterized in that the dynamic routing method
The following steps are included:
S1, description is defined to the structural body of application scenarios；
Unit group data structure in S2, definition routing policy；
S3, routing policy and routing table be added in terminal initial；
S4, corresponding scene sIndex is notified into routing daemon and searches the ternary of matching scene sIndex in routing policy
Group finds corresponding rIndex, and according to priority ranking；
S5, when transmitting IP packet, judge whether IP packet matches routing table by kernel, if it matches, then transmitting IP using the routing
Packet, if it does not match, searching next routing table until the last one routing table.
2. the dynamic routing method under intelligent terminal multiple-network connection environment according to claim 1, which is characterized in that institute
It states further comprising the steps of in step S3:
S31, newly-increased application scenarios Sm is inserted into application scenarios list, to the member sIndex and sName of application scenarios Sm
Assignment, wherein needing to guarantee that sIndex is unique in lists, member isWorking is defaulted as false；
S32, need to provide corresponding routing iinformation for newly-increased application scenarios, App or user, routing daemon is according to this letter
Breath increases one or more routing table newly in kernel, while increasing corresponding triple newly in routing policy.
3. the dynamic routing method under intelligent terminal multiple-network connection environment according to claim 2, which is characterized in that institute
It states more multiple routing tables of increase in step S32 and correspondingly increases multiple triples.
4. the dynamic routing method under intelligent terminal multiple-network connection environment according to claim 3, which is characterized in that institute
It states and includes at least three members in step S1 in the structural body description of building application scenarios, sIndex is unique mark of scene
Know, corresponding various scene indexes, sName is the title of corresponding scene, and isWorking indicates whether that current time terminal just works
In such scene.
5. the dynamic routing method under intelligent terminal multiple-network connection environment according to claim 4, which is characterized in that institute
State data structure<sIndex of triple, rIndex, pValue>, it indicates to require to look up road if scene is sIndex
By table rIndex, priority pValue.
6. the dynamic routing system under a kind of intelligent terminal multiple-network connection environment, which is characterized in that the dynamic routing system
Including
Structural body constructs module, is defined description for the structural body to application scenarios；
Definition strategy module, for defining the multi-component system data structure in routing policy；
Adding module, for being added routing policy and routing table in terminal initial；
Sorting module notifies routing daemon and searches in routing policy to match scene for that will correspond to scene sIndex
The triple of sIndex finds corresponding rIndex, and according to priority ranking；
Matching module, for when transmitting IP packet, judging whether IP packet matches routing table by kernel, if it matches, then application should
Routing transmission IP packet, if it does not match, searching next routing table until the last one routing table.
7. the dynamic routing system under intelligent terminal multiple-network connection environment according to claim 6, which is characterized in that institute
It states in adding module and further includes
Newly-increased scene unit, the application scenarios Sm for will increase newly is inserted into application scenarios list, to the member of application scenarios Sm
SIndex and sName assignment, wherein needing to guarantee that sIndex is unique in lists, member isWorking is defaulted as false；
Routing table and tactful adding unit, for for newly-increased application scenarios, App or user to need to provide corresponding routing
Information, routing daemon increase one or more routing table newly according to this information in kernel, while newly-increased pair in routing policy
The triple answered.
8. the dynamic routing system under intelligent terminal multiple-network connection environment according to claim 7, which is characterized in that institute
It states more multiple routing tables of increase in routing table and tactful adding unit and correspondingly increases multiple triples.
9. the dynamic routing system under intelligent terminal multiple-network connection environment according to claim 8, which is characterized in that institute
It states and includes at least three members in structural body building module in the structural body description of building application scenarios, sIndex is scene
Unique identification, corresponding various scene indexes, sName is the title of corresponding scene, and isWorking indicates whether current time terminal
It is working on such scene.
10. the dynamic routing system under intelligent terminal multiple-network connection environment according to claim 9, which is characterized in that
Data structure<sIndex of the triple, rIndex, pValue>, it indicates to require to look up if scene is sIndex
Routing table rIndex, priority pValue.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110633244A (en) * | 2019-09-29 | 2019-12-31 | 中联天通科技（北京）有限公司 | Navigation apparatus |
| CN111817962A (en) * | 2020-07-01 | 2020-10-23 | 厦门立林科技有限公司 | Android system multi-network-card intelligent routing method |
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| CN111817962A (en) * | 2020-07-01 | 2020-10-23 | 厦门立林科技有限公司 | Android system multi-network-card intelligent routing method |
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