CN108768685A - Extensive communication network real-time analog simulation system - Google Patents
Extensive communication network real-time analog simulation system Download PDFInfo
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- CN108768685A CN108768685A CN201810271509.8A CN201810271509A CN108768685A CN 108768685 A CN108768685 A CN 108768685A CN 201810271509 A CN201810271509 A CN 201810271509A CN 108768685 A CN108768685 A CN 108768685A
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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
- H04L41/14—Network analysis or design
- H04L41/145—Network analysis or design involving simulating, designing, planning or modelling of a network
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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
- H04L41/08—Configuration management of networks or network elements
- H04L41/0893—Assignment of logical groups to network elements
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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
- H04L41/12—Discovery or management of network topologies
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/50—Testing arrangements
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- Data Exchanges In Wide-Area Networks (AREA)
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Abstract
The present invention relates to a kind of extensive communication network real-time analog simulation systems, the analogue simulation system includes true network element and test equipment, NFV/SDN equipment and network (WSN) emulation system, network analog system, information system, the wherein described true network element, NFV/SDN equipment and network (WSN) emulation system collectively constitute real network topology, it is additionally provided with client virtual machine in the NFV/SDN equipment and network (WSN) emulation system, test equipment and information system are connected with the real network topology, and the real network topology is connected by the network analog system with the client virtual machine.The DES of Large-Scale Network Simulation is dispersed in multiple simulation softwards using the connection of network and network media management in kind, large scale network real-time analog simulation is realized with less hardware resource by the present invention.
Description
Technical field
The present invention relates to the technical fields of information communication, refer in particular to a kind of extensive communication network real-time simulation mould
Quasi- system.
Background technology
Network planning optimization, the network operation for data communication network safeguard that training, network failure rehearsal, network target range are attacked
The complex scenes such as anti-rehearsal usually provide large-scale data communication to the user to allow user to lose contact with reality working environment
Net real-time simulation environment carries out simulation, preview and the verification of new departure new technology under virtual simulation environment.
At this stage, the simulation method of communication network mainly utilizes simulation softward analog network behavior, still
Really have the following problems：First：Simulation softward can carry out series of discrete event simulation during carrying out network analog
（Discrete Event Simulation, vehicle economy S）, when modeling event is fewer, simulation system can be according to true generation
The time on boundary triggers simulated events one by one；And when analog network scale is bigger, business conduct complexity is relatively high, modeling event
When comparing more, DES processing times are often longer than the preset network analog time, so as to cause simulation system and true generation
Time between boundary cannot synchronize.Second：In order to solve the problems, such as that DES processing times are grown, is calculated and provided using several CPU cores
Source can carry out Parallel Discrete Event Simulation（Parallel Discrete Event Simulation, abbreviation PDES）, still
The efficiency of this method depends on isochronous schedules algorithm between parallel discrete event, and carries out multinuclear inside an application program
When multithreading PDES, increase with the Thread Count of unlatching, parallel processing dispatching algorithm will expend a large amount of cpu resources, and causing cannot
Effectively utilize hardware computing resource.Third：Hardware system all can be developed or be opened to general networking simulation softward in ring
（Hardware in Loop）Data-interface, using the Ethernet interface of computer by true router, interchanger, Ethernet
The equipment such as data terminal access network media management system, the network behavior simulation of participation system are realized, due to general network
Simulation softward can only configure one hardware device of access, although complex web can be accessed or be passed through by interchanger, router
Network topology accesses simulation system, but for each node in entire complex network, simulation softward generally cannot achieve and very
Automatic discovery and routing table between real routing node automatically update.4th：The purpose of real-time network analogue simulation is preview pair
The change adjustment now netted also includes the industry that new deployment information system is brought wherein both including the change of network topology, protocol configuration
Business flow change, and new system reaches the standard grade and generates new service traffics, can also be affected to network performance, network in simulation softward
Service traffics are generally generated by data service generator, if the traffic characteristic consistency in discharge model and live network is not
Match, the result of simulation can be influenced.
Invention content
For this purpose, technical problem to be solved by the present invention lies in overcome to be advised greatly merely with simulation softward in the prior art
The problem of mould data communication network is simulated in real time a kind of can effectively reduce the impact to single simulation kernel and increase carries to provide
Rise the extensive communication network real-time analog simulation system of cpu busy percentage.
In order to solve the above technical problems, a kind of extensive communication network real-time analog simulation system of the present invention, packet
It includes desktop interactive computer, the emulated switch being connected with the desktop interactive computer, be connected with the emulated switch
Simulation management server, the resource pool being connected with the emulated switch, wherein true network element and survey are equipped in the resource pool
Equipment is tried, the emulated switch is also connected with analogue simulation server cluster, and the analogue simulation server cluster includes
NFV/SDN equipment and network (WSN) emulation system, network analog system, information system, wherein the true network element, NFV/SDN equipment
Real network topology is collectively constituted with network (WSN) emulation system, client is additionally provided in the NFV/SDN equipment and network (WSN) emulation system
Virtual machine is held, the test equipment and information system are connected with the real network topology, and the real network topology
It is connected with the client virtual machine by the network analog system.
In one embodiment of the invention, multiple network simulators are equipped in the network analog system.
In one embodiment of the invention, between the real network topology and the network analog system and described
It is connected by half interface in kind between network analog system and the client virtual machine.
In one embodiment of the invention, on the fringe node of the real network topology with operational network simulator
The interface of computer connection is mapped as the fringe node for the virtual network topology that the network analog system is formed, the operation
The interface being connect with the fringe node of the real network topology on the computer of network simulator is mapped as the virtual net
Another node of network topology.
In one embodiment of the invention, on the fringe node of the real network topology with operational network simulator
The interface IP address of computer connection is identical as the IP address of the fringe node of the virtual network topology, the operational network mould
The interface IP address and the virtual network topology being connect with the fringe node of the real network topology on the computer of quasi- device
Another node the addresses interface IP keep it is identical.
In one embodiment of the invention, the fringe node of the real network topology adds static ARP
List.
In one embodiment of the invention, on the computer of the operational network simulator with the real network topology
Fringe node connection interface IP address and the operational network simulator computer on the real network topology
The physical address binding of the interface of fringe node connection.
In one embodiment of the invention, the computer of the operational network simulator is the desktop interactive computer
Or the client virtual machine.
In one embodiment of the invention, the interface of the emulated switch includes InfiniBand interfaces, GE/10GE
Ethernet interface and other high speed interfaces.
In one embodiment of the invention, the simulation management server is equipped with management platform, the management platform
System is managed including network real-time analog simulation, the management platform realizes the configuration management of multiple functions by controlling script.
The above technical solution of the present invention has the following advantages over the prior art：
Extensive communication network real-time analog simulation system of the present invention, by NFV/SDN equipment, network simulation system
System, network analog system and information system deployment combine actual communication equipment and test in analogue simulation server cluster
Instrument and meter carries out extensive real-time network emulation, and the network behavior of real-time analog simulation large-scale data communication network can be with needle
Training, network failure rehearsal, network target range attack and defense training etc. are multiple to be safeguarded to network planning optimization, the network operation of data communication network
Miscellaneous scene allows user to lose contact with reality working environment, isolation simulated environment carry out the simulation of new departure new technology, preview and
Verification.In addition, the present invention by simulation hardware resource unified management, realizes with script the dynamic management configuration network in resource pool
The analogue simulation topology of communication, collects information, changes scene, to realize efficient rapid configuration complex network test environment, from
Dynamic configuration scene collects test information, can greatly improve network communication equipment and the testing efficiency of information communication system；Separately
Outside, test environment validity is higher, and network target range can be used as to carry out the relevant test of the network information security and attack and defense training.
Description of the drawings
In order to make the content of the present invention more clearly understood, it below according to specific embodiments of the present invention and combines
Attached drawing, the present invention is described in further detail, wherein
Fig. 1 is extensive communication network real-time analog simulation system schematic of the invention；
Fig. 2 is extensive communication network real-time analog simulation system connection diagram of the invention；
Fig. 3 is real network topology of the present invention and virtual network topology connection diagram；
Fig. 4 is one embodiment that real network topology of the present invention is connect with virtual network topology；
Fig. 5 is second embodiment that real network topology of the present invention is connect with virtual network topology；
Fig. 6 is the third embodiment that real network topology of the present invention is connect with virtual network topology.
Specific implementation mode
As depicted in figs. 1 and 2, the present embodiment provides a kind of extensive communication network real-time analog simulation system, packets
Include desktop interactive computer 10, the emulated switch 20 being connected with the desktop interactive computer 10 and the emulated switch
20 connected simulation management servers 30, the resource pool 40 being connected with the emulated switch 10, wherein in the resource pool 40
Equipped with true network element and test equipment 41, the emulated switch 20 is also connected with analogue simulation server cluster 50, described imitative
True emulating server cluster 50 includes NFV/SDN equipment and network (WSN) emulation system 51, network analog system 52, information system 53,
The wherein described true network element, NFV/SDN equipment and network (WSN) emulation system 51 collectively constitute real network topology, the NFV/SDN
It is additionally provided with client virtual machine 54 in equipment and network (WSN) emulation system 51, the test equipment 41 and information system 53 are and institute
It states real network topology to be connected, and the real network topology passes through the network analog system 52 and the client virtual machine
54 are connected.
Extensive communication network real-time analog simulation system described in the present embodiment, including desktop interactive computer 10,
Emulated switch 20, simulation management server 30, resource pool 40 and analogue simulation server cluster 50, wherein the desktop is handed over
Mutual computer 10 carries out the man-machine interactive interface of analogue simulation as user, and the emulated switch 20 interacts meter with the desktop
Calculation machine 10 is connected, and the emulated switch 20 is for providing function of exchange, the simulation management server 30 and the emulation
Interchanger 20 is connected, and the simulation management server 30 is the core of whole system, is responsible for the distribution analogue simulation clothes
The hardware resource of business device cluster 50, deployment analogue simulation network topology, deployment analogue simulation business, deployment real equipment and test
The access of instrument and meter, provides the man-machine interactive interface service of analogue simulation network, and the resource pool 40 is exchanged with the emulation
Machine 20 is connected, and true network element and test equipment 41 is equipped in the resource pool 40, the test equipment 41 is for measuring network system
System function and performance parameter, the emulated switch 20 are connected with the analogue simulation server cluster 50, analogue simulation operation
It is mainly completed in the analogue simulation server cluster 50, the analogue simulation server cluster 50 includes NFV/SDN equipment
With network (WSN) emulation system 51, network analog system 52, information system 53, wherein the true network element, NFV/SDN equipment and network
Analogue system 51 collectively constitutes real network topology, and the network analog system 52 is used to form virtual network topology, the letter
Breath system 53 copes with the access request of Client application, the NFV/SDN equipment and network simulation system as information system server
It is additionally provided with client virtual machine 54 in system 51, the clothes for accessing described information system 53 are asked by the client virtual machine 54
Business, establishes the connection across whole network topology, the test equipment 41 and described information system 53 with the true net
Network topology is connected, and the real network topology is connected by the network analog system 52 with the client virtual machine 54,
Real network topology is set to collectively constitute a network topology with virtual network topology, the analogue simulation for carrying out network multi objective is tested
Card.The present invention realizes live network communication equipment, network work(using the scene of access single simulation software combined simulation in kind
NFV can be virtualized（Network Function Virtualization）Plurality of devices and the moulds such as equipment, simulator apparatus mirror image
Interconnecting between analog node in quasi- software, in the way of actual situation combination, by the DES of Large-Scale Network Simulation
It is dispersed in multiple simulation softwards, realize large scale network with less hardware resource simulates in real time, keeps each simulation soft
Analog node is less in part, to which real-time DES is less, reduces the congestion of DES, due to handling DES in real time, avoids carrying out when congestion
Event scheduling wait for, improve the utilization rate of CPU hardware resource and the real-time of single simulation system DES, hardware provide
In the case of source is limited, the scale of real-time analog network is had greatly expanded；It is emulated in addition, true telematics system is accessed
Analog network generates true network service traffic using interaction is accessed it, makes discharge model more close to true applied field
Scape.
In the present embodiment, the CPU in the analogue simulation server cluster 50 can carry out two kinds of operations：First is emulation
Cpu resource is distributed to network equipment virtual machine by operation, the true network equipment of real-time simulation, input and output of equipment and true
The real network equipment is just the same.Such as NFV equipment/SDN equipment/network equipment mirror image emulator；Second is simulation trial, mould
Intend a subnet topology, the network discrete event of each node in topology is simulated execution sequentially in time.Such as OPNET,
The DES network media managements such as EXata, OMNeT++, NS-2, to improve the utilization rate of CPU.
Multiple network simulators are equipped in the network analog system 52, wherein the network simulator is that network analog is soft
Part simulates multiple subnet topologies respectively by multiple network media managements, so as to greatly extend virtual network scale, by
A large amount of DES operations are distributed in multiple independent network media managements in the present invention, when reducing a large amount of modeling events generations
To individually simulating the impact of kernel, to keep each independent simulation system synchronous with the holding of real world time；In addition, more
In a independent network media management, the dispatching algorithm instead of PDES is gone with coarseness time synchronization, increases the utilization for promoting CPU
Rate, and reduce consumption of the CPU calculation resources in PDES dispatching algorithms makes CPU more be used to execute DES, is conducive to having
The cpu resource of limit simulates more network nodes and network discrete event, and can solve traditional Large-Scale Network Simulation
In, in parallel discrete event processing procedure, the problem of all threads wait for mutually according to sequencing.
As shown in figure 3, to realize the data seamless transmission and routing of virtual network in live network and network media management
Table dynamic generation, between the real network topology and the network analog system 52 and the network analog system 52 and institute
It states and is connected by half interface in kind between client virtual machine 54.Since the network analog system 52 is used to form virtual net
Network topology, that is to say, that：Between the real network topology and the virtual network topology and the virtual network topology with
It is connected by half interface in kind between the client virtual machine 54.Specifically, the fringe node A of the real network topology
The upper fringe node 1 that the virtual network topology is mapped as with the computer B of the operational network simulator interface A1 connecting, institute
It states and is mapped as institute with the fringe node A of the real network topology interfaces connecting on the computer B of operational network simulator
Another node for stating virtual network topology, such as the 2-1 interfaces of node 2；On the fringe node A of the real network topology with
The IP of the IP address of the interface A1 of the computer B connections of operational network simulator and the fringe node 1 of the virtual network topology
Address is identical, the interface being connect with the fringe node A of the real network topology on the computer B of the operational network simulator
The IP address of B1 is identical as the interface IP address holdings of another node 2-1 of the virtual network topology.
Static ARP list is added for the fringe node A of the real network topology, by the operational network
On the computer B of simulator with the IP address of the fringe node A of the real network topology interface B1 connecting and the operation
On the computer B of network simulator with the physical address of the fringe node A of the real network topology interface B1 connecting（Referred to as
MAC）Binding, interference caused by avoiding the physical address of dummy node and real node mapping format inconsistent.It will be described virtual
The working method of the fringe node 1 of network topology is configured to forward all bearing datas to node 2, the real network topology
Fringe node A is sent to the data of the computer B of the operational network simulator, and being modeled software grabs in B1 interfaces enters virtually
Network is mapped as being sent to the data of node 2 by node 1 in virtual network, and virtual network interior joint 2 is sent to the data of node 1,
B1 interfaces are mapped to by simulation softward and send truthful data to the fringe node A of the real network topology, thus in true net
Network and virtual network IP traffic realize two-way seamless transit, data source address and destination address and live network and virtual network
Realize matching, since live network and virtual network can in any combination, routing iinformation can be with dynamic interaction.
The computer of the operational network simulator is the desktop interactive computer 10 or the client virtual machine 54.
The interface of the emulated switch 20 includes that other high-speed datas such as InfiniBand interfaces and GE/10GE Ethernet interfaces connect
Mouthful, interaction of the InfiniBand interfaces for emulating data between the server of big data quantity；The GE/10GE Ethernets
Control interaction data of the interface for small data quantity transmits.Channel switching apparatus 42, router are additionally provided in the resource pool 40
Multiple true network element devices such as 43 and interchanger 44.
The simulation management server 30 is equipped with management platform, and the management platform includes network real-time analog simulation pipe
Reason system, the management platform realize the configuration management of multiple functions by controlling script.Specifically, the management platform control
Script processed realizes that the configuration management of multiple functions, including virtualization resource allocate management of network element device end in recycling, true topology
Mouth protocol configuration, the emulation startup of emulation server topological arrangement parameter configuration etc..The present invention can emulated by script combination
Artificial network topology is built in emulating server cluster rapidly, starts emulation, collects operation data, changes topology, adjusts agreement,
Variation business.In addition, by script complete simulated environment configuration and execution, this process be also the NFV/SDN equipment and
The test environment build process of described information system 53；And it is tested by script collection operation data, change after starting emulation
Parameter can complete test event according to testing process, obtain complete test report.Since the present invention is by simulation hardware resource
Unified management realizes the analogue simulation topology of the dynamic management configuration network communication in resource pool with script, collects information, change
Become scene, be advantageously implemented efficient rapid configuration complex network test environment, automatically configures scene, collects test information, it can be with
Greatly improve the testing efficiency of network communication equipment and information communication system；And test environment validity is higher, Ke Yizuo
The relevant test of the network information security and attack and defense training are carried out for network target range.
It is discussed in detail again below and how to realize concatenating for virtual network topology and the real network topology：
As shown in figure 4, being set in the network analog system 52, there are two network simulators, respectively by two computer operational networks
Simulation softward, to simulate multiple subnets, realization is connected with the real network topology, while a computer and described information
The server of system 53 is connected, and another computer is connected with the client virtual machine 54, by live network and virtual network
A network topology is collectively constituted, the simulating, verifying of network multi objective is carried out.
As shown in figure 5, being set in the network analog system 52, there are one network simulators, are run respectively by a computer
Network media management, to simulate multiple subnets, realization is connected with the real network topology, at the same the computer both with institute
The server for stating information system 53 is connected, and is connected with the client virtual machine 54, live network and common group of virtual network
At a network topology, the simulating, verifying of network multi objective is carried out.
As shown in fig. 6, being set in the network analog system 52, there are two network simulators, are run respectively by two computers
Network media management, to simulate multiple subnets, realization is connected with the real network topology, wherein one end of a computer
Be connected access live network with first test equipment 41A, and the other end is connected with the real network topology, another computer
One end be connected with second test equipment 41B the access real network topology, the other end and the client virtual machine 54
It is connected, and first test equipment 41A or second test equipment 41B can be single port instrument and multiport instrument,
It can arbitrary access of virtual network.
Obviously, the above embodiments are merely examples for clarifying the description, does not limit the embodiments.For
For those of ordinary skill in the art, other different form variations can also be made on the basis of the above description or are become
It is dynamic.There is no necessity and possibility to exhaust all the enbodiments.And obvious variation extended from this or change
It is dynamic still within the protection scope of the invention.
Claims (10)
1. a kind of extensive communication network real-time analog simulation system, including desktop interactive computer and the desktop are handed over
The connected emulated switch of mutual computer, the simulation management server being connected with the emulated switch are exchanged with the emulation
The connected resource pool of machine, wherein true network element and test equipment are equipped in the resource pool, it is characterised in that：The emulation is handed over
It changes planes and is also connected with analogue simulation server cluster, the analogue simulation server cluster includes that NFV/SDN equipment and network are imitative
True system, network analog system, information system, wherein the true network element, NFV/SDN equipment and common group of network (WSN) emulation system
At real network topology, client virtual machine, the test equipment are additionally provided in the NFV/SDN equipment and network (WSN) emulation system
And information system is connected with the real network topology, and the real network topology by the network analog system with
The client virtual machine is connected.
2. extensive communication network real-time analog simulation system according to claim 1, it is characterised in that：The network
Multiple network simulators are equipped in simulation system.
3. extensive communication network real-time analog simulation system according to claim 1 or claim 2, it is characterised in that：It is described
Between real network topology and the network analog system and between the network analog system and the client virtual machine
It is connected by half interface in kind.
4. according to extensive communication network real-time analog simulation system described in claim 3, it is characterised in that：It is described true
The interface being connect with the computer of operational network simulator on the fringe node of real network topology is mapped as the network analog
The fringe node for the virtual network topology that system is formed is opened up with the live network on the computer of the operational network simulator
The interface for the fringe node connection flutterred is mapped as another node of the virtual network topology.
5. extensive communication network real-time analog simulation system according to claim 4, it is characterised in that：It is described true
The interface IP address being connect with the computer of operational network simulator on the fringe node of network topology is opened up with the virtual network
The IP address for the fringe node flutterred is identical, the edge on the computer of the operational network simulator with the real network topology
The interface IP address of node connection is identical as the interface IP address holdings of another node of the virtual network topology.
6. extensive communication network real-time analog simulation system according to claim 4, it is characterised in that：It is described true
The fringe node of network topology adds static ARP list.
7. extensive communication network real-time analog simulation system according to claim 6, it is characterised in that：The operation
The interface IP address being connect with the fringe node of the real network topology on the computer of network simulator and the operation net
The physical address for the interface being connect with the fringe node of the real network topology on the computer of network simulator is bound.
8. extensive communication network real-time analog simulation system according to claim 4, it is characterised in that：The operation
The computer of network simulator is the desktop interactive computer or the client virtual machine.
9. extensive communication network real-time analog simulation system according to claim 1, it is characterised in that：The emulation
The interface of interchanger includes InfiniBand interfaces, GE/10GE Ethernet interfaces and other high speed interfaces.
10. extensive communication network real-time analog simulation system according to claim 1, it is characterised in that：It is described imitative
True management server is equipped with management platform, and the management platform includes network real-time analog simulation management system, the management
Platform realizes the configuration management of multiple functions by controlling script.
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