CN109121177A - A kind of astro network route control system and method - Google Patents
A kind of astro network route control system and method Download PDFInfo
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- CN109121177A CN109121177A CN201810840370.4A CN201810840370A CN109121177A CN 109121177 A CN109121177 A CN 109121177A CN 201810840370 A CN201810840370 A CN 201810840370A CN 109121177 A CN109121177 A CN 109121177A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W40/00—Communication routing or communication path finding
- H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
- H04W40/04—Communication route or path selection, e.g. power-based or shortest path routing based on wireless node resources
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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
- H04L45/28—Routing or path finding of packets in data switching networks using route fault recovery
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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
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W40/00—Communication routing or communication path finding
- H04W40/24—Connectivity information management, e.g. connectivity discovery or connectivity update
- H04W40/248—Connectivity information update
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/04—Large scale networks; Deep hierarchical networks
- H04W84/06—Airborne or Satellite Networks
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Abstract
The invention discloses a kind of astro network route control system and methods, the present invention passes through the TTC channel using each astro network node (satellite), construct a reliable control network separated with data network, for controller and astro network node (satellite) interactive control information, to realize the highly effective gathering of network state information and the reliable distribution of routing table information, meet astro network route request.
Description
Technical field
The present invention relates to field of computer technology, more particularly to a kind of astro network route control system and method.
Background technique
With the progress of user demand and technology, traditional satellite communication system starts the space-based information towards space networking
Network Development, routing are to realize one of the key technology of the efficient networking of satellite.Routing is there are mainly two types of implementation: it is distributed and
Centralization.Distribution is routed through the exchange collection network link-state information of the signaling between adjacent node, respectively by each node
It calculates and routes and execute data packet forwarding；The routing that concentrated route has a controller to unifiedly calculate the whole network, and will calculate
Routing table issue each node go execute data packet forwarding.Concentrated route completes router-level topology by unified controller,
The processing capacity requirement that satellite can be mitigated significantly is that astro network routes more feasible implementation.Using concentrated route,
Frequent interactive information, including network state information acquisition and routing table point are needed between controller and astro network node (satellite)
Hair.In prior art, control information and data information is all transmitted in a data network, but due to existing data link
Reliability it is not high, be easy to cause control information loss, to influence the normal operation of Routing Protocol.
Summary of the invention
The present invention provides a kind of astro network route control system and methods, to solve the concentrated route of the prior art
Data link the not high problem of reliability.
On the one hand, the present invention provides a kind of astro network route control system, which includes:
Astro network node, the routing table for being issued according to controller complete forwarding of the data packet in astro network,
The astro network node includes multiple, each equal configuration data link of astro network node and control link, the day
It is connected between base network node by the data link, the astro network node and ground control station or Tianhuangping pumped storage plant section
Point passes through the control link connection；
Controller calculates for collecting and safeguarding the topology information of entire astro network and generates routing table and be handed down to each
A astro network node；
Tianhuangping pumped storage plant node is located at geostationary orbit, is connected with astro network node by controlling link, for institute
There is all standing of middle low orbit astro network node；
Ground control station is distributed in earth's surface everywhere, is connected with astro network node by the control link.
Preferably, the data link uses Ka or laser frequency range；The control link uses S frequency range.
Preferably, the astro network node is also used to, detect the data link whether failure, and determining the number
When according to link failure, Trouble Report is sent by controller described in the Quality Initiative road direction.
Preferably, the controller is also used to, and after receiving the Trouble Report, the data link of failure is labeled as
It is unavailable, network topology is updated, and recalculate routing table, which is issued to the astro network node of routing table variation.
Preferably, the controller is also used to, and according to the running track of astro network node each in astro network, is calculated
Astro network Topology partition is a series of static topologicals using topological Snapshot Method by the changing rule of network topology, and according to
Each network topology snapshot, which calculates, generates routing table, and the routing table with temporal information is issued each space-based by controlling link
Network node.
On the other hand, the present invention provides a kind of astro network route control methods, and the method is using above-mentioned any one
Astro network route control system described in kind, comprising:
After source astro network node receives data packet, route requests are sent to controller by control link；
The controller generates routing iinformation according to network topology and associated information calculation, and routing table is passed through the control
Link processed is handed down to from each astro network node on the astro network node to the path of purpose astro network node of source；
Each astro network node completes the forwarding of data packet according to the routing table received, in data network.
Preferably, the data link uses Ka or laser frequency range；The control link uses S frequency range.
Preferably, this method further include: by data link described in the astro network nodal test whether failure, and
When determining the data link failure, Trouble Report is sent by controller described in the Quality Initiative road direction.
Preferably, controller is after receiving the Trouble Report, by the data link of failure labeled as unavailable, update
Network topology, and routing table is recalculated, which is issued to the astro network node of routing table variation.
Preferably, the controller calculates network and opens up according to the running track of astro network node each in astro network
Astro network Topology partition is a series of static topologicals using topological Snapshot Method by the changing rule flutterred, and according to each net
Network topology snapshot, which calculates, generates routing table, and the routing table with temporal information is issued each astro network section by controlling link
Point.
The present invention has the beneficial effect that:
The present invention passes through the control link using each astro network node (satellite), and building one is separated with data network
Reliable control network, for controller and astro network node (satellite) interactive control information, to realize network state
The highly effective gathering of information and the reliable distribution of routing table information, meet astro network route request.
The above description is only an overview of the technical scheme of the present invention, in order to better understand the technical means of the present invention,
And it can be implemented in accordance with the contents of the specification, and in order to allow above and other objects of the present invention, feature and advantage can
It is clearer and more comprehensible, the followings are specific embodiments of the present invention.
Detailed description of the invention
By reading the following detailed description of the preferred embodiment, various other advantages and benefits are common for this field
Technical staff will become clear.The drawings are only for the purpose of illustrating a preferred embodiment, and is not considered as to the present invention
Limitation.And throughout the drawings, the same reference numbers will be used to refer to the same parts.In the accompanying drawings:
Fig. 1 is a kind of structural schematic diagram of astro network route control system of the embodiment of the present invention；
Fig. 2 is a kind of flow diagram of astro network route control method of the embodiment of the present invention；
Fig. 3 is the flow diagram of another astro network route control method of the embodiment of the present invention；
Fig. 4 is the flow diagram of another astro network route control method of the embodiment of the present invention.
Specific embodiment
First embodiment of the invention provides a kind of astro network route control system, and referring to Fig. 1, which includes:
Astro network node 10, the routing table for being issued according to controller 20 are completed data packet and are turned in astro network
Hair, the astro network node 10 include multiple, the equal configuration data link 41 of each astro network node 10 and Quality Initiative
Road 42 passes through the data link 41 between the astro network node 10 and connects, and the astro network node 10 is surveyed with ground
Control station 31 or Tianhuangping pumped storage plant node 32 are connected by the control link 42；
Controller 20 calculates for collecting and safeguarding the topology information of entire astro network and generates routing table and be handed down to
Each astro network node 10；
Ground control station 31 is distributed in earth's surface everywhere, is connected with astro network node 10 by the control link；
Tianhuangping pumped storage plant node 32 is located at geostationary orbit, is connected with astro network node 10 by controlling link, is used for
All standing to all middle low orbit astro network nodes 10；
Data link 41 connects astro network node, is used for transmission the data information of high speed, generallys use Ka or laser
Frequency range；
Link 42, connection astro network node and Tianhuangping pumped storage plant node or ground control station are controlled, low speed is used for transmission
Control information, generally use S frequency range.
The present invention passes through the control link 42 using each astro network node 10, what building one was separated with data network
Reliable control network, for controller 20 and 10 interactive control information of astro network node, to realize network state information
Highly effective gathering and routing table information reliable distribution, meet astro network route request.
Wherein, in the embodiment of the present invention, astro network node 10 is equivalent to the router in ground network, according to controller
20 routing tables issued complete forwarding of the data packet in astro network.Each astro network node 10 configures the different chain of two classes
Road is the data link 41 of high speed and the control link 42 of low speed, wherein data link 41 and adjacent astro network section respectively
Point 10 is connected, and generallys use the frequency ranges such as Ka, laser, its main feature is that rate is high but reliability is lower；It controls link 42 and ground is surveyed
Control station 31 or Tianhuangping pumped storage plant node 32 are connected, and generally use S frequency range, its main feature is that rate is lower but high reliablity.Data-link
Road 41 and control link 42 are respectively formed two independent networks, and data network is by the data between astro network node 10 and node
Link 41 form, control network by astro network node 10, Tianhuangping pumped storage plant node 32, ground control station 31, controller 20 and
Control link 42 between node forms.
When it is implemented, astro network node 10 described in the embodiment of the present invention is also used to, detecting the data link 41 is
No failure, and when determining 41 failure of data link, failure is sent to the controller 20 by the control link 42
Report.
The controller 20 is also used to, after receiving the Trouble Report, by the data link 41 of failure labeled as not
It can use, update network topology, and recalculate routing table, which is issued to the astro network node 10 of routing table variation.
In the embodiment of the present invention, the controller 20 is the operation rail according to astro network node 10 each in astro network
Road calculates the changing rule of network topology, is that a series of static state are opened up by astro network Topology partition using topological Snapshot Method
It flutters, and is calculated according to each network topology snapshot and generate routing table, the routing table with temporal information is passed through into control link 42
Issue each astro network node 10.
The core of the embodiment of the present invention is the routing implementation mode using control and forward separating, by unified controller 20
The router-level topology of astro network is completed, astro network node 10 is completed data packet according to the routing table that controller 20 issues and forwarded；
And based on the building of control link 42 and the independent control network of data network, dedicated for controller 20 and astro network node 10
Between control information transmission.
Astro network route implementation method based on independent control network proposed by the invention, has the advantages that
1, the routing implementation mode isolated using control and forwarding, router-level topology is concentrated on complete in ground controller 20
At can reduce to the requirement of the processing capacity of astro network node 10；
2, based on control link 42 construct with the independent control network of data network, can be improved control information transmission can
By property, and reduce the processing complexity of data network.
Second embodiment of the invention provides a kind of astro network route control method, and referring to fig. 2, the method application is originally
Astro network route control system described in invention first embodiment, comprising:
After S201, source astro network node receive data packet, route requests are sent to controller by control link；
S202, the controller generate routing iinformation according to network topology and associated information calculation, and routing table is passed through
The control link is handed down to from each astro network section on the astro network node to the path of purpose astro network node of source
Point；
S203, each astro network node complete the forwarding of data packet in data network according to the routing table received.
The purpose of the present invention is to provide a kind of astro network route control method based on measurement and control network, utilizes each day
The control link of base network node (satellite) constructs a reliable control network separated with data network, is used for controller
With astro network node (satellite) interactive control information, to realize the highly effective gathering and routing table information of network state information
Reliable distribution, meets astro network route request.
Wherein, in the embodiment of the present invention, astro network node is equivalent to the router in ground network, according under controller
The routing table of hair completes forwarding of the data packet in astro network.Each astro network node configures the different link of two classes, point
It is not the data link of high speed and the control link of low speed, wherein data link is connected with adjacent astro network node, usually
Using frequency ranges such as Ka, laser, its main feature is that rate is high but reliability is lower；Control link and ground control station or Tianhuangping pumped storage plant
Node is connected, and generallys use S frequency range, its main feature is that rate is lower but high reliablity.Data link and control link are respectively formed
Two independent networks, data network are made of the data link between astro network node and node, control network by space-based network
Control link composition between network node, Tianhuangping pumped storage plant node, ground control station, controller and node.
When it is implemented, the embodiment of the present invention the method also includes:
By data link described in the astro network nodal test whether failure, and determining the data link failure
When, Trouble Report is sent by controller described in the Quality Initiative road direction.
Controller is after receiving the Trouble Report, by the data link of failure labeled as unavailable, updates network and opens up
It flutters, and recalculates routing table, which is issued to the astro network node of routing table variation.
Controller described in the embodiment of the present invention calculates net according to the running track of astro network node each in astro network
Astro network Topology partition is a series of static topologicals using topological Snapshot Method by the changing rule of network topology, and according to every
A network topology snapshot, which calculates, generates routing table, and the routing table with temporal information is issued each space-based network by controlling link
Network node.
Astro network routing update process of the embodiment of the present invention based on topological Prognostics, it is specific as shown in Figures 3 and 4, comprising:
Since astro network node does periodic track movement around the earth, the dynamic change of astro network topology is caused,
Routing table is also required to be constantly updated according to the variation of topology.Since the running track of astro network node is fixed, day
The change in topology of base net network be also it is predictable, the astro network routing update process based on topological Prognostics is as follows:
S401, controller calculate the changing rule of network topology, adopt according to the running track of node each in astro network
With topological Snapshot Method, it is a series of static topologicals by astro network Topology partition, illustrates: time series { t0,t1,…,
tn, topological sequences { T1,T2,…,Tn, wherein in timeslice [ti-1,ti] interior astro network topology remains unchanged, it is denoted as Ti, 1≤
i≤n；
S402, controller are calculated according to each network topology snapshot generates routing table, will have the routing table of temporal information
Each astro network node is issued by controlling network；
S403, astro network node are according to the routing table and temporal information received, in each timeslice [ti-1,ti]
Initial time ti-1Routing table update is completed, and in timeslice [ti-1,ti] interior according to routing table forwarding data packet.
Astro network routing update process under emergency case of the embodiment of the present invention, comprising:
The link or node failure that emergency case refers mainly to occur at random leads to network topology change, due to this topology
Variation is unpredictable, so needing active probe mechanism, routing update process is as follows:
1) nodal test is to link failure, by controlling network to controller transmission link Trouble Report；
2) after controller receives link failure report, it is unavailable by the link indicia and updates network topology；
3) controller recalculates routing table according to updated network topology, and is sent to routing table by controlling network
The astro network node changed；
4) after astro network node receives the routing table of update, original routing table is replaced and according to new routing table forwarding number
According to packet.
The routing implementation mode isolated using control and forwarding of the embodiment of the present invention, concentrates on ground control for router-level topology
Complete, can be reduced to the requirement of the processing capacity of astro network node in device, the embodiment of the present invention based on control link building with
The independent control network of data network, can be improved the reliability of control information transmission, and reduce the processing complexity of data network.
The related content of the embodiment of the present invention can be found in Installation practice and be understood, not be described in detail herein.
Algorithm and display are not inherently related to any particular computer, virtual system, or other device provided herein.
Various general-purpose systems can also be used together with teachings based herein.As described above, it constructs required by this kind of system
Structure be obvious.In addition, the present invention is also not directed to any particular programming language.It should be understood that can use various
Programming language realizes summary of the invention described herein, and the description done above to language-specific is to disclose this hair
Bright preferred forms.
In the instructions provided here, numerous specific details are set forth.It is to be appreciated, however, that implementation of the invention
Example can be practiced without these specific details.In some instances, well known method, structure is not been shown in detail
And technology, so as not to obscure the understanding of this specification.
Similarly, it should be understood that in order to simplify the disclosure and help to understand one or more of the various inventive aspects,
Above in the description of exemplary embodiment of the present invention, each feature of the invention is grouped together into single implementation sometimes
In example, figure or descriptions thereof.However, the disclosed method should not be interpreted as reflecting the following intention: i.e. required to protect
Shield the present invention claims features more more than feature expressly recited in each claim.More precisely, as following
Claims reflect as, inventive aspect is all features less than single embodiment disclosed above.Therefore,
Thus the claims for following specific embodiment are expressly incorporated in the specific embodiment, wherein each claim itself
All as a separate embodiment of the present invention.
Those skilled in the art will understand that can be carried out adaptively to the module in the equipment in embodiment
Change and they are arranged in one or more devices different from this embodiment.It can be the module or list in embodiment
Member or component are combined into a module or unit or component, and furthermore they can be divided into multiple submodule or subelement or
Sub-component.Other than such feature and/or at least some of process or unit exclude each other, it can use any
Combination is to all features disclosed in this specification (including adjoint claim, abstract and attached drawing) and so disclosed
All process or units of what method or apparatus are combined.Unless expressly stated otherwise, this specification is (including adjoint power
Benefit require, abstract and attached drawing) disclosed in each feature can carry out generation with an alternative feature that provides the same, equivalent, or similar purpose
It replaces.
In addition, it will be appreciated by those of skill in the art that although some embodiments described herein include other embodiments
In included certain features rather than other feature, but the combination of the feature of different embodiments mean it is of the invention
Within the scope of and form different embodiments.For example, in the following claims, embodiment claimed is appointed
Meaning one of can in any combination mode come using.
Various component embodiments of the invention can be implemented in hardware, or to run on one or more processors
Software module realize, or be implemented in a combination thereof.It will be understood by those of skill in the art that can be used in practice
Microprocessor or digital signal processor (DSP) realize that Distributed File System Data according to an embodiment of the present invention imports
The some or all functions of some or all components in device.The present invention is also implemented as being retouched here for executing
The some or all device or device programs (for example, computer program and computer program product) for the method stated.
It is such to realize that program of the invention can store on a computer-readable medium, or can have one or more signal
Form.Such signal can be downloaded from an internet website to obtain, be perhaps provided on the carrier signal or with it is any its
He provides form.
It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and ability
Field technique personnel can be designed alternative embodiment without departing from the scope of the appended claims.In the claims,
Any reference symbol between parentheses should not be configured to limitations on claims.Word "comprising" does not exclude the presence of not
Element or step listed in the claims.Word "a" or "an" located in front of the element does not exclude the presence of multiple such
Element.The present invention can be by means of including the hardware of several different elements and being come by means of properly programmed computer real
It is existing.In the unit claims listing several devices, several in these devices can be through the same hardware branch
To embody.The use of word first, second, and third does not indicate any sequence.These words can be explained and be run after fame
Claim.
Claims (10)
1. a kind of astro network route control system characterized by comprising
Astro network node, the routing table for being issued according to controller completes forwarding of the data packet in astro network, described
Astro network node includes multiple, each equal configuration data link of astro network node and control link, the space-based network
It is connected between network node by the data link, the astro network node and ground control station or Tianhuangping pumped storage plant node lead to
Cross the control link connection；
Controller calculates for collecting and safeguarding the topology information of entire astro network and generates routing table and be handed down to each day
Base network node；
Tianhuangping pumped storage plant node is located at geostationary orbit, is connected with astro network node by TTC channel, is used for in all
The all standing of low orbit astro network node；
Ground control station is distributed in earth's surface everywhere, is connected with astro network node by the TTC channel.
2. the apparatus according to claim 1, which is characterized in that
The data link uses Ka or laser frequency range；
The TTC channel uses S frequency range.
3. the apparatus according to claim 1, which is characterized in that
The astro network node is also used to, detect the data link whether failure, and determining the data link failure
When, Trouble Report is sent by controller described in the Quality Initiative road direction.
4. device according to claim 3, which is characterized in that
The controller is also used to, after receiving the Trouble Report, by the data link of failure labeled as unavailable, update
Network topology, and routing table is recalculated, which is issued to the astro network node of routing table variation.
5. the apparatus according to claim 1, which is characterized in that
The controller is also used to, and according to the running track of astro network node each in astro network, calculates network topology
Astro network Topology partition is a series of static topologicals using topological Snapshot Method by changing rule, and is opened up according to each network
It flutters snapshot and calculates generation routing table, the routing table with temporal information is issued into each astro network node by controlling link.
6. a kind of astro network route control method, which is characterized in that any one of the method application claim 1-5 institute
The astro network route control system stated, comprising:
After source astro network node receives data packet, route requests are sent to controller by control link；
The controller generates routing iinformation according to network topology and associated information calculation, and routing table is passed through the Quality Initiative
It is handed down to from each astro network node on the astro network node to the path of purpose astro network node of source on road；
Each astro network node completes the forwarding of data packet according to the routing table received, in data network.
7. according to the method described in claim 6, it is characterized in that,
The data link uses Ka or laser frequency range；
The TTC channel uses S frequency range.
8. according to the method described in claim 6, it is characterized by further comprising:
By data link described in the astro network nodal test whether failure, and when determining the data link failure,
Trouble Report is sent by controller described in the Quality Initiative road direction.
9. according to the method described in claim 8, it is characterized in that,
Controller is after receiving the Trouble Report, by the data link of failure labeled as unavailable, update network topology, and
Routing table is recalculated, which is issued to the astro network node of routing table variation.
10. according to the method described in claim 6, it is characterized in that,
The controller calculates the variation rule of network topology according to the running track of astro network node each in astro network
Astro network Topology partition is a series of static topologicals using topological Snapshot Method by rule, and according to each network topology snapshot
It calculates and generates routing table, the routing table with temporal information is issued into each astro network node by controlling link.
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| CN111061617A (en) * | 2019-12-06 | 2020-04-24 | 中国电子科技集团公司第五十四研究所 | Cloud computing-based space-based network networking simulation test system |
| CN111884931A (en) * | 2020-07-03 | 2020-11-03 | 北京交通大学 | Centralized routing method and system applied to satellite network |
| CN112512066A (en) * | 2020-12-04 | 2021-03-16 | 中国空间技术研究院 | Satellite-borne high-low speed hybrid data transmission system |
| CN113747534A (en) * | 2021-08-13 | 2021-12-03 | 中国电子科技集团公司电子科学研究院 | Space-based networking routing method and device based on centralized distributed combination |
| CN114298456A (en) * | 2021-11-12 | 2022-04-08 | 北京邮电大学 | Method and device for deploying controller function module, electronic equipment and storage medium |
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| CN111061617B (en) * | 2019-12-06 | 2023-10-20 | 中国电子科技集团公司第五十四研究所 | Space-based network networking simulation test system based on cloud computing |
| CN111884931A (en) * | 2020-07-03 | 2020-11-03 | 北京交通大学 | Centralized routing method and system applied to satellite network |
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| CN112512066A (en) * | 2020-12-04 | 2021-03-16 | 中国空间技术研究院 | Satellite-borne high-low speed hybrid data transmission system |
| CN112512066B (en) * | 2020-12-04 | 2024-06-07 | 中国空间技术研究院 | Satellite-borne high-low speed mixed data transmission system |
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| CN113747534B (en) * | 2021-08-13 | 2023-09-08 | 中国电子科技集团公司电子科学研究院 | Method and equipment for routing space-based group network based on centralized and distributed combination |
| CN114298456A (en) * | 2021-11-12 | 2022-04-08 | 北京邮电大学 | Method and device for deploying controller function module, electronic equipment and storage medium |
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