CN110601907B - Large-scale networking simulation test method, device and system for satellite communication system - Google Patents
Large-scale networking simulation test method, device and system for satellite communication system Download PDFInfo
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- CN110601907B CN110601907B CN201910952100.7A CN201910952100A CN110601907B CN 110601907 B CN110601907 B CN 110601907B CN 201910952100 A CN201910952100 A CN 201910952100A CN 110601907 B CN110601907 B CN 110601907B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/391—Modelling the propagation channel
- H04B17/3912—Simulation models, e.g. distribution of spectral power density or received signal strength indicator [RSSI] for a given geographic region
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/1851—Systems using a satellite or space-based relay
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
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Abstract
The invention discloses a large-scale networking simulation test method, device and system for a satellite communication system. The method comprises the following steps: configuring basic network element information to be simulated in a configuration file of an end station according to end station information registered on an NMS, and taking the end station as an end station simulator; splitting sub-scenes according to the requirement of large-scale networking verification, setting a set of interactive flows of an end station and an NCS for each sub-scene, and packaging different interactive flows into different service models; configuring a service model of interaction between each piece of basic network element information and the NCS; generating a simulation example according to the basic network element information of the configuration file; and constructing a corresponding signaling message according to the service model, and simulating and executing the interaction process of all the simulation examples and the NCS. One end station is used for simulating the process that dozens or even hundreds of end stations interact with the NCS at the same time, so that a normal or abnormal test scene is flexibly constructed, the requirement on the number of equipment is reduced, and the reliability and the fault tolerance are improved.
Description
Technical Field
The invention relates to satellite communication, in particular to a large-scale networking simulation test method, a large-scale networking simulation test device and a large-scale networking simulation test system for a satellite communication system.
Background
In a DAMA (demand assignment) satellite communication system, the NCS (network controller) performs unified control and management on the whole network, including device network access, resource assignment and the like, and the whole process is completed in a signaling interaction manner. The basic flow is that the NCS broadcasts the information of itself in the subnet through the TDM carrier of the main station, the end station receives the broadcast and then sends the network access signaling to the main station, and the main station transfers the network access signaling to be processed by the NCS. After the end station accesses the network, when there is service, it will also initiate the resource application signaling to NCS. In this networking mode, one NCS and one master station need to handle the signaling of all end stations under the subnet.
When the number of end stations is large, a large amount of signaling messages may exceed the processing capabilities of the NCS and the master station, thereby causing a functional abnormality. However, in actual testing, the laboratory environment often fails to meet the requirement of verifying large-scale networking due to the limitation of the number of sites and equipment, which brings potential risks to the application of the existing network.
Disclosure of Invention
The invention provides a large-scale networking simulation test method, device and system of a satellite communication system aiming at the limitation of a laboratory environment, can use one end station to simulate the process of simultaneously interacting dozens or even hundreds of end stations with an NCS in the laboratory test process, can flexibly construct normal or various abnormal test scenes in a template configuration mode, can greatly reduce the requirement on the number of devices in the test, and can improve the test in the aspects of the reliability and fault tolerance of the system.
In order to achieve the above object, the present invention employs the following techniques:
a large-scale networking simulation test method of a satellite communication system is characterized by comprising the following steps:
configuring basic network element information to be simulated in a configuration file of an end station according to end station information registered on an NMS, and taking the end station as an end station simulator;
splitting sub-scenes according to the requirement of large-scale networking verification, setting a set of interactive flows of an end station and an NCS for each sub-scene, and packaging different interactive flows into different service models;
configuring a service model of interaction between each piece of basic network element information and the NCS;
generating a simulation example according to the basic network element information of the configuration file;
and constructing a corresponding signaling message according to the service model, and simulating and executing the interaction process of all the simulation examples and the NCS.
Further, the basic network element information includes the number of end stations to be simulated, an end station IP, an end station ID, an end station SN, and a device type.
Further, each sub-scenario includes the NMS, an NCS, and a number of basic network element information corresponding to the NCS. Specifically, one NCS corresponds to a plurality of pieces of basic network element information through one HUB.
A large-scale networking simulation test device of a satellite communication system is characterized by comprising:
a simulator initialization module, configured to configure basic network element information to be simulated in a configuration file of an end station according to end station information registered on the NMS, and use the end station as an end station simulator;
the service model encapsulation module is used for splitting sub-scenes according to the requirement of large-scale networking verification, setting a set of interactive flows of an end station and the NCS for each sub-scene, and encapsulating different interactive flows into different service models;
the configuration template module is used for configuring a service model of interaction between each piece of basic network element information and the NCS;
a simulation example creating module for generating a simulation example according to the basic network element information of the configuration file;
and the service model execution module is used for constructing a corresponding signaling message according to the service model and simulating and executing the interaction process of all the simulation examples and the NCS.
A large-scale networking simulation test system of a satellite communication system is characterized by comprising:
NMS；
a number of NCSs connected to the NMS; and
an end station simulator connected to each NCS;
wherein: each NCS is specifically connected to one end station simulator through one HUB.
The end station simulator is an end station configured with basic network element information to be simulated in a configuration file;
the NMS is used for configuring the basic network element information to be simulated for the end station simulator,
the end station simulator is used for splitting sub-scenes according to the requirement of large-scale networking verification, setting a set of interactive flows of the end station and the NCS for each sub-scene, and packaging different interactive flows into different service models; configuring a service model of interaction between each piece of basic network element information and the NCS according to the service model; and the simulation instance is generated according to the basic network element information of the configuration file, a corresponding signaling message is constructed according to the service model, and the interactive process of all the simulation instances and the NCS is simulated and executed.
The invention has the beneficial effects that:
1. in the laboratory test process, one end station can be used for simulating the process that dozens or even hundreds of end stations simultaneously interact with the NCS, and a normal or various abnormal test scenes can be flexibly constructed in a template configuration mode;
2. the requirement on the number of devices during testing is greatly reduced, and the testing in the aspects of system reliability and fault tolerance can be improved;
3. the processing capability of the NCS and the master station can be verified, and whether the processing behavior of the NCS on the abnormal message is expected or not can also be verified;
4. when testing a large-scale networking scene, the number of actually required devices is not increased, and due to the existence of the configuration template, the testing personnel can flexibly define the testing scene.
Drawings
Fig. 1 is a schematic diagram of a large-scale networking simulation according to an embodiment of the present application.
Fig. 2 is a schematic diagram of a simulation test flow according to an embodiment of the present application.
Fig. 3 is a block diagram of an apparatus according to an embodiment of the present application.
Detailed Description
The invention is explained in detail below with reference to the embodiments of the drawings.
Description of the name: NMS, network manager; NCS, network controller; the HUB, a multi-port transponder, is a central station in a satellite communication system.
The NMS is correspondingly connected with a plurality of NCSs, and each NCS is connected with a plurality of terminals through a HUB branch.
In a DAMA satellite communication system, a plurality of NCSs (network control systems) are provided under an NMS (network management system), and an NCS subnet manages a master station and a plurality of end stations, respectively.
In the simulation scheme provided by the invention, only one terminal station device is used for simulating a plurality of terminal stations under one subnet, and the device for simulating a plurality of terminal stations can be called as a terminal station simulator and is marked with 'S' in the drawing.
The behavior of an end station simulator and a plurality of real end station devices is the same for the NCS or the main station, and the NCS and the main station cannot sense whether the remote station is the simulator or the real end station devices.
The large-scale networking simulation schematic diagram is shown in fig. 1:
NMS connects NCS1, NCS2, … …, NCSn.
NCS1 was linked to S1 via HUB 1.
NCS2 was linked to S2 via HUB 2.
……
NCSn is connected to Sn through HUBn.
Each end station simulator S has RCST1, RCST2, … … and RCSTn, i.e., n end stations to be simulated.
The simulation test implementation steps are shown in fig. 2:
1. initialization of a simulator:
configuring basic information of network elements in a configuration file of an end station simulator according to end station information registered on an NMS network manager, wherein the basic information comprises the number of end stations to be simulated, IP (Internet protocol), ID (identity), SN (serial number), equipment type and the like of the end stations;
2. and (3) packaging the service model:
and dividing the verification required by large-scale networking into sub-scenes, defining a set of interactive flows of the end station and the NCS by each sub-scene, and packaging the interactive flows into a service model.
3. Configuring a service template:
mainly a business model is configured for each instance to interact with the NCS. According to different service models, the simulator starts different interactive processes, so that the aim of flexibly defining a test scene is fulfilled.
4. Creating a simulation example:
the end station simulator generates simulation examples according to the basic information of the configuration file, for example, 100 end stations need to be simulated, and then 100 examples are generated, wherein one example corresponds to one end station needing to be simulated.
5. And (3) executing a business model:
the end station simulator executes the service models of all simulation examples in parallel, namely constructs corresponding signaling messages according to the definition of the service models and simulates the interaction process with NCS.
The structure of an embodiment of the large-scale networking simulation test device provided by the application is shown in fig. 3.
Satellite communication system large-scale network deployment simulation testing arrangement includes: the simulation system comprises a simulator initialization module, a business model packaging module, a configuration template module, a simulation instance creating module and a business model executing module.
Specifically, the simulator initialization module is configured to configure basic network element information to be simulated in a configuration file of an end station according to end station information registered on the NMS, and use the end station as an end station simulator; the service model encapsulation module is used for splitting sub-scenes according to the requirement of large-scale networking verification, setting a set of interactive flows of an end station and the NCS for each sub-scene, and encapsulating different interactive flows into different service models; the configuration template module is used for configuring a service model of interaction between each piece of basic network element information and the NCS according to the service model; a simulation example creating module for generating a simulation example according to the basic network element information of the configuration file; and the service model execution module is used for constructing a corresponding signaling message according to the service model and simulating and executing the interaction process of all the simulation examples and the NCS.
In the embodiment of the large-scale networking simulation test system provided by the application, a networking system is shown in fig. 1.
A test system comprising an NMS;
a number of NCSs connected to the NMS; and
and an end station simulator S connected to each NCS via a HUB. In particular to
Specifically, NMS connects NCS1, NCS2, … …, NCSn.
Specifically, NCS1 is linked to S1 via HUB 1. NCS2 was linked to S2 via HUB 2.… … are provided. NCSn is connected to Sn through HUBn.
Specifically, each end station simulator S has RCST1, RCST2, … … and RCSTn, i.e., n end stations to be simulated.
The end station simulator is an end station configured with basic network element information to be simulated in a configuration file.
And the NMS is used for completing the configuration of the basic network element information needing simulation.
The end station simulator is used for splitting sub-scenes according to the requirement of large-scale networking verification, setting a set of interactive flows of the end station and the NCS for each sub-scene, and packaging different interactive flows into different service models; configuring a service model of interaction between each piece of basic network element information and the NCS according to the service model; and the simulation instance is generated according to the basic network element information of the configuration file, a corresponding signaling message is constructed according to the service model, and the interactive process of all the simulation instances and the NCS is simulated and executed.
The invention provides a method for simulating a large-scale networking scene aiming at the limitation of a laboratory environment, the method can use one end station to simulate the process that dozens or even hundreds of end stations simultaneously interact with an NCS in the laboratory test process, and the normal or various abnormal test scenes can be flexibly constructed in a mode of configuring a template.
The invention can greatly reduce the requirement on the number of devices during testing, and can improve the testing in the aspects of system reliability and fault tolerance. For example, there are 5 NCSs under a test networking, and 200 end stations are needed in each NCS subnet, through the method, 200 stations under each NCS subnet can be replaced by one end station device, and the first 100 stations are configured in the configuration template to initiate normal interaction with the NCS, and the last 100 stations perform abnormal interaction. Therefore, the processing capability of the NCS and the master station can be verified, and whether the processing behavior of the NCS on the abnormal message is expected or not can be verified.
By the method, the number of actually required devices is not increased when a tester tests a large-scale networking scene, and the tester can flexibly define the testing scene due to the existence of the configuration template.
Claims (10)
1. A large-scale networking simulation test method of a satellite communication system is characterized by comprising the following steps:
configuring basic network element information to be simulated in a configuration file of an end station according to end station information registered on an NMS (network management system), and taking the end station as an end station simulator, wherein the NMS is a network manager;
splitting sub-scenes according to the requirement of large-scale networking verification, setting a set of interactive flows of an end station and an NCS (network controller) for each sub-scene, and encapsulating different interactive flows into different service models, wherein the NCS is a network controller;
configuring a service model of interaction between each piece of basic network element information and the NCS;
generating a simulation example according to the basic network element information of the configuration file;
and constructing a corresponding signaling message according to the service model, and simulating and executing the interaction process of all the simulation examples and the NCS.
2. The simulation test method for large-scale networking of the satellite communication system according to claim 1, wherein: the basic network element information comprises the number of end stations to be simulated, end station IP, end station ID, end station SN and equipment type.
3. The simulation test method for large-scale networking of the satellite communication system according to claim 1, wherein: each sub-scenario comprises NMS, an NCS and a plurality of basic network element information corresponding to the NCS.
4. A large-scale networking simulation test device of a satellite communication system is characterized by comprising:
the simulator initialization module is used for configuring basic network element information to be simulated in a configuration file of an end station according to the end station information registered on the NMS, and taking the end station as an end station simulator, wherein the NMS is a network manager;
the service model encapsulation module is used for splitting sub-scenes according to the requirement of large-scale networking verification, setting a set of interactive flows of an end station and an NCS (network controller) for each sub-scene, and encapsulating different interactive flows into different service models, wherein the NCS is a network controller;
the configuration template module is used for configuring a service model of interaction between each piece of basic network element information and the NCS;
a simulation example creating module for generating a simulation example according to the basic network element information of the configuration file;
and the service model execution module is used for constructing a corresponding signaling message according to the service model and simulating and executing the interaction process of all the simulation examples and the NCS.
5. The large-scale networking simulation test device of the satellite communication system according to claim 4, wherein: the basic network element information comprises the number of end stations to be simulated, end station IP, end station ID, end station SN and equipment type.
6. The large-scale networking simulation test device of the satellite communication system according to claim 4, wherein: each sub-scenario comprises NMS, an NCS and a plurality of basic network element information corresponding to the NCS.
7. A large-scale networking simulation test system of a satellite communication system is characterized by comprising:
NMS；
a number of NCSs connected to the NMS; and
an end station simulator connected to each NCS;
wherein: NMS is a network manager, NCS is a network controller;
the end station simulator is an end station configured with basic network element information to be simulated in a configuration file;
the NMS is used for completing the configuration of basic network element information to be simulated for the end station simulator;
the end station simulator is used for splitting sub-scenes according to the requirement of large-scale networking verification, setting a set of interactive flows of the end station and the NCS for each sub-scene, and packaging different interactive flows into different service models; configuring a service model of interaction between each piece of basic network element information and the NCS according to the service model; and the simulation instance is generated according to the basic network element information of the configuration file, a corresponding signaling message is constructed according to the service model, and the interactive process of all the simulation instances and the NCS is simulated and executed.
8. The satellite communication system large-scale networking simulation test system of claim 7, wherein: the basic network element information comprises the number of end stations to be simulated, end station IP, end station ID, end station SN and equipment type.
9. The satellite communication system large-scale networking simulation test system of claim 7, wherein: each sub-scenario comprises NMS, an NCS and a plurality of basic network element information corresponding to the NCS.
10. The satellite communication system large-scale networking simulation test system of claim 7, wherein: each NCS is correspondingly connected with an end station simulator through a HUB, and the HUB is a multi-port repeater and is a central station in a satellite communication system.
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| CN111092648B (en) * | 2019-12-24 | 2022-06-17 | 北京东土科技股份有限公司 | Network simulation system and network test method |
| CN112714461B (en) * | 2021-01-29 | 2022-05-31 | 四川安迪科技实业有限公司 | DAMA satellite network central station protection switching method |
| CN115361054B (en) * | 2022-08-15 | 2024-04-26 | 中国电子科技集团公司第五十四研究所 | TDMA (time division multiple Access) quick networking method based on normalized service model |
| CN117639906B (en) * | 2024-01-26 | 2024-04-12 | 成都星联芯通科技有限公司 | Method, device and system for testing performance of gateway station under high-orbit satellite broadband |
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| IL213159A0 (en) * | 2011-05-26 | 2012-02-29 | Eci Telecom Ltd | Technique for management of communication networks |
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| CN106921448A (en) * | 2015-12-25 | 2017-07-04 | 中兴通讯股份有限公司 | The method of testing and device of satellite communication system |
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