CN109039703A - The method and system of business scenario network rapid build under a kind of complex network simulated environment - Google Patents
The method and system of business scenario network rapid build under a kind of complex network simulated environment Download PDFInfo
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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
Abstract
The invention discloses a kind of method and system of business scenario network rapid build under complex network simulated environment.The method include the steps that 1) network topology structure according to needed for target scene network configuration, virtual router, each IP address section and VLAN, generate the configuration file of the target scene network, and send it to route test network and Switch control network；2) Switch control network completes the configurations of node access networks network according to configuration file；3) the virtual flow-line server of route test network creates virtual flow-line according to the configuration file, and according to configuration file subnet division and VLAN；4) physical interface of virtual flow-line server is connected with the Experimental Network core switch in Experimental Network, accesses each node；5) virtual flow-line server creates the virtual link between virtual switch according to configuration file；6) virtual flow-line server is communicated with virtual switch and is established control, and each virtual switch issues flow table.
Description
Technical field
The invention belongs to Internet security technology areas, are related to one kind and quickly advise greatly in complex network simulated environment
The method and system of mould realization complex scene network.
Background technique
Cyberspace confrontation situation is increasingly severe, and network-combination yarn has become the main contents of various countries' network-combination yarn confrontation.Net
Network environment by simple internet development to Ubiquitous Network space, also attacked by single-mode towards complicated APT by attack pattern
Direction is hit to develop.Complex network simulated environment is the important infrastructure for network-combination yarn rehearsal and new network evaluation and test,
For improving stability, safety and the performance of network and information system.Pay much attention to complex network analog loop in countries in the world
Border construction is commented as the technical identification of supporting network space safety, cyberweapons test, Attack Defence rehearsal and network risks
The important means estimated.
In complex network simulated environment actual application, to reach the simulation of real goal network environment, generally require
The reduction of complex network structures, the virtual scene network of building one and true environment striking resemblances.Connect in network comprising routing
Connect relationship, Autonomous Domain inside and the complicated link structure between Autonomous Domain, true network address etc..Existing traditional complex network
Simulated environment is only able to achieve the division of different segment in terms of scene network environment building, cannot achieve complicated network level and closes
System.Lack internetwork routing, or flexible change cannot achieve by the network level relationship that physical equipment constructs, for extensive
Complicated network structure simulation cost is big, and pure craft builds physical equipment network environment time-consuming long, and cost is big.It can not be for true
The simulation and customized that carries out of network address, have significant limitation for the reduction and simulation of live network.
Summary of the invention
For the technical problems in the prior art, the purpose of the present invention is to provide a kind of complex network simulated environments
The method and system of scene network rapid build, to solve the problems such as true complex network intends true and flexible rapid build, this hair
Bright to be generated virtual router (vRouter) by introducing SDN (software defined network) technology, SDN controller passes through OpenFlow
Agreement carries out unified strategy to virtual router and manages, and realizes the creation of routing node in scene network, and hand over using virtual
(OVS) technology of changing planes generates virtual OVS bridge (Bridge), realizes the division of network segment in scene network.The present invention being capable of root
Complexity, multi-layer, multilink network scenarios are created that according to actual needs, and it is more that solution traditional environment can not simulate on a large scale complexity
The problem of level and multilink network scenarios, and due to being virtual router, addition and deletion are flexibly free, are not set by physics
Standby limitation, the time-consuming short cost of generation virtual unit is low, solves the problems, such as that network structure cannot achieve flexible change.To sum up institute
It states, the present invention greatly improves traditional complex network simulated environment to the limitation of the reduction and simulation of live network.
The technical scheme is that
The method of business scenario network rapid build, step include: under a kind of complex network simulated environment
1) server in complex network simulated environment is connected on the access switch of Experimental Network, each access
Interchanger is connected to the core switch of Experimental Network；The interchanger of access network is connected to the core switch of Experimental Network；
2) network topology structure according to needed for target scene network configuration, virtual router, each IP address section and VLAN,
The configuration file of the target scene network is generated, and sends route test network and Switch control net for the configuration file
Network；
3) Switch control network completes the configurations of node access networks network according to the configuration file；
4) the virtual flow-line server of route test network creates virtual flow-line according to the configuration file, and is matched according to this
File subnet division and VLAN are set, by each node division in the target scene network to corresponding VLAN and subnet；
5) each virtual flow-line server creates a virtual bridge, the physical interface of the virtual machine bridge and a server
Binding, and be separately connected with the virtual bridge of other virtual flow-line servers creation；Each virtual bridge possesses one respectively and leads to
The channel interface of pipeline joint, each virtual bridge is equal and the physical interface binding of every virtual flow-line server, virtual flow-line clothes
The physical interface of business device is connected with the Experimental Network core switch in Experimental Network, to access each node；
6) virtual flow-line server creates the virtual link between virtual switch, and configuration void according to the configuration file
The communication channel of quasi- interchanger and SDN controller；
7) virtual flow-line server starts SDN controller, by the communication channel configured, with corresponding virtual switch into
Row communicates and establishes control；Then virtual flow-line server sends the virtual flow-line, port IP address letter to SDN controller
Breath, when SDN controller issues flow table to each virtual switch according to the information received, to complete the wound of virtual router
It builds.
Further, the method for the virtual flow-line is created are as follows: virtual flow-line server is mentioned from the configuration file first
The connection relationship between each node is taken, is calculated according to Dijkstra signal source shortest path algorithm and generates each node to any other
Shortest path between node generates routing table entry information according to shortest path information.
Further, the method according to the configuration file subnet division and VLAN are as follows: virtual flow-line server according to
Virtual bridge needed for the configuration file generates draws the corresponding VLAN tag of virtual bridge all of the above port label
Molecular network and VLAN.
Further, in the step 7), virtual flow-line server is sent by the api interface of north orientation to SDN controller
The virtual flow-line, port IP address information, after SDN controller receives information, by the channel OpenFlow of south orientation to
Each virtual switch issues flow table, to complete the creation of virtual router.
Further, each virtual router carries out unified control and management by SDN controller.
Further, the configuration file is JSON configuration file；Routing is sent by the configuration file by SSH agreement
Control network and Switch control network.
Business scenario network rapid build system under a kind of complex network simulated environment, which is characterized in that controlled including routing
Network processed, Experimental Network, Switch control network, access network；Wherein,
The Experimental Network, the customization network scenarios used for each business scenario, support customized gateway, routing and
IP；Each node in complex network simulated environment is linked into the access switch of Experimental Network, and each access switch is connected to reality
Test the core switch of network, Experimental Network and route test network connection；The node includes real node and dummy node；
Include several virtual flow-line servers in the route test network, runs SDN in the virtual flow-line server
Controller, SDN controller is generated by the configuration file of target scene network and management virtual router, realizes the target scene
Routing between nodes, and according to the configuration file carry out sub-network division from；It is provided in the route test network
The gateway of each node；The gateway of each node is respectively directed to a corresponding ports of virtual router；The route test network
In include several virtual bridges, isolation is realized by virtual bridge between the network of different user；
The Switch control network, for the friendship according to the configuration file to the interchanger of Experimental Network and access network
It changes planes and is configured；
The access network provides access interface, allows user as access point network corresponding with Experimental Network
It accesses and using the network and resource in complex network simulated environment business scenario.
Further, the network topology structure according to needed for target scene network configuration, virtual router, each IP address section
And VLAN, generate the configuration file of the target scene network.
Further, one virtual bridge of each virtual flow-line server creation, the virtual machine bridge and a server
Physical interface binding, and be separately connected with the virtual bridge of other virtual flow-line servers creation；Each virtual bridge is gathered around respectively
There is a channel interface, the channel interface of each virtual bridge is equal and the physical interface binding of every virtual flow-line server, empty
The physical interface of quasi- routing server is connected with the Experimental Network core switch in Experimental Network, to access each node.
Further, each virtual router carries out unified control and management by SDN controller.
Main function of system of the invention is four parts: route test network (vRouterCtrlNet), Experimental Network
(ExptNet), Switch control network (MethCtrlNet), access network (AccessNet).The concrete function of each network
It can be elaborated in specific embodiment link.
Resource, customized drafting network topology structure needed for user's pure graphical interfaces selection scene network and fill in network
Address information is simultaneously submitted.
System foreground generates the JSON format configuration file of scene network, the content in the configuration file contain according to
The network address information and network topology structure that family is filled in, system background according to SDN controller north orientation application programming interfaces
(API) specification generates virtual router (vRouter) by SDN (software defined network) technology and SDN controller passes through
OpenFlow agreement carries out unified strategy to virtual router and manages, and realizes the creation of routing node in scene network, generates
Routing relation needed for virtual router, i.e. connection relationship between node, comprising the connection relationship between router and router,
Connection relationship between terminal and router, the virtual interface address information of virtual router use virtual switch (OVS) skill
Art generates virtual OVS bridge (Bridge), realizes the division of network segment in scene network, is sent to virtual flow-line server.
Virtual flow-line server monitors whether specified directory in virtual flow-line server receives new system foreground life in real time
At scene network JSON format configuration file, if received, the automatic visioning procedure for starting scene network.
Virtual flow-line server extracts the information for the configuration file that foreground is sent, and generates virtual bridge and virtual flow-line
Device.According to the needs of scene network, the port of virtual bridge and virtual router (vRouter) is automatically configured, divides virtual office
Domain net (VLAN), configuration interface IP address, configuration virtual link route.
Virtual flow-line server generates routing table according to the connection relationship between node, is written into virtual router automatic
The routing table of generation realizes the complex network routing in scene.
Real node (physical server) and dummy node (virtual machine) are contained in configuration file, it will be true in scene
The Experimental Network access switch that node is connected with dummy node configures vlan information, and creates Experimental Network core switch and arrive
The link of virtual flow-line server is permitted in the port that core switch is connected with the virtual flow-line server configuration channel Tunk
Perhaps VLAN.
Overall network system architecture of the invention is according to four kinds of networks of function division, i.e. route test network, scene net
Network, Switch control network, access network, network and internetwork connection relationship, the function of each network implementations.
The present invention automatically parses the connection relationship of each node, by most short in the stage of processing scene network profile
The method that routing algorithm generates the connection relationship between node.
The present invention manages virtual bridge (Bridge) in scene virtual flow-line generation phase, using SDN controller
With the mode of configuration, in such a way that the Restful interface of north orientation sends routing table information to SDN controller, SDN controller will
Routing table information is sent to the approaches and methods of each Bridge by the channel OpenFlow of south orientation.In specific embodiment link
There is detailed illustrate.
Compared with prior art, the present invention have it is following it is obvious a little:
1. can be realized the building of large-scale and complex scenes network, the single simple status of traditional environment structure is changed.
Realize the embodiment that connection relationship is routed in simulation internet between Autonomous Domain, in Autonomous Domain and inside Campus Network, to greatest extent
Realization true environment it is quasi- true, compensating for the prior art cannot achieve the deficiency of hierarchical network routing relation.
2. the rapid automatized deployment of scene network, complicated routing relation no longer needs to rely on physical network device and manually match
It sets, greatly improves efficiency.The customized of network address information is realized by SDN technology, it can is that private net address is also possible to
Public network address solves the problem of that the prior art can only distribute private net address automatically and can not define true address.
3. passing through the use of SDN technology and virtual switch, it is isolated parallel between realization different scenes network, does not interfere with each other,
It solves the problems, such as multi-tenant while using address conflict.
Detailed description of the invention
Fig. 1 is overall system architecture figure；
Fig. 2 is virtual flow-line business process map.
Specific embodiment
In order to enable skilled addressee preferably deeply to understand technical solution of the present invention, have below with reference to the application
Body case study on implementation and relevant drawings carry out clear and complete elaboration to technical scheme.
The present invention automatically generates configuration file and routing letter according to the customized scene network topological information of front end user
Breath, and be issued to routing server automatically create with virtual network device, link, to quickly generate large-scale and complex scenes net
Network.
System of the invention is applied among complex network simulated environment, and system architecture is as shown in Figure 1, among these, originally
The system function of invention is broadly divided into four parts: route test network (vRouterCtrlNet), Experimental Network (ExptNet),
Switch control network (MethCtrlNet), access network (AccessNet).
More the part of core is that virtual flow-line controls network (vRouterCtrlNet) in system of the invention, routing control
Virtual flow-line server is contained in network processed, SDN controller is run in server, if virtual flow-line server can be generated
Dry virtual router (vRouter), realizes the routing between scene nodes, and all vRouter pass through SDN controller
Unified control and management are carried out, SDN controller gives birth to all virtual routers by the configuration file of scene network
At and management, interface IP address information, routing table including virtual router.Meanwhile it being provided in route test network each
The gateway of node, all material objects and dummy node gateway are directed to some port of virtual router.Meanwhile route test net
By virtual switch technology in network, several virtual bridges that virtual flow-line server is created that according to scene network profile
(Bridge), different VLAN has been divided in Bridge, realization is divided and is isolated to subnet, while different user (is rented
Family) network between, the isolation between tenant is realized further through different scenario B ridge and VLAN therein.Tenant and tenant
Between do not share VLAN, and the Bridge between different tenant is not interconnected, therefore realizes Network Isolation.
Experimental Network is the customization network scenarios that each business scenario uses, and supports customized gateway, routing and IP.Entirely
All business scenarios of system are deployed on business scenario network, are the network foundations of business scenario operation.Complex network simulation
True and dummy node (Tnode) in environment is linked into Experimental Network access switch (ExptNetSW), and access switch connects
It is connected to Experimental Network core switch (Core ExptNetSW), Experimental Network and route test network connection, to realize
Routing between Tnode node in scene network.Network path between two different sub-network nodes of simplified summary are as follows: node 1-
Experimental Network-route test network-Experimental Network-node 2.
Switch control network is used to configure Experimental Network interchanger and the access network switch, includes creation
The operations such as VLAN, port opening and closing, channel creation.
Network (AccessNet) is accessed as access point network corresponding with Experimental Network, provides end user's
Access interface keeps user accessible and using the network and other resources in complex network simulated environment business scenario.
Technology implementation process of the invention is illustrated below with reference to the example of one scene network of creation:
1. scene network physical equipment connects
All complex network simulated environment servers are by the way that in cable connection to Experimental Network access switch, every is accessed
Interchanger is connected to Experimental Network core switch by fibre circuit, and the access network switch is connected to also by fibre circuit
Experimental Network core switch.
2. access switch automatically configures
User is drawn by foreground interface, creates scene network, the good required network topology structure of configuration, virtual flow-line
Device, each IP address section, VLAN etc., then foreground generates the JSON configuration file of scene network, and is sent to by SSH agreement
Route test network and Switch control network.
As the VLAN for having one or more in scene network, then need to create scene net in Experimental Network access switch
VLAN needed for network, so that the access (true and dummy node) of terminal device can be added to corresponding VLAN as requested
In.By scene configuration file, after the system analysis configuration file in Switch control network, passes through SSH agreement and physics is handed over
It changes planes and is communicated, the mission bit stream in configuration file is resolved into instruction and is sent to physical switches, this step includes creation
VLAN configures switch port, configures the channel Trunk, opens or closes port etc..
Switch control network completes the configurations of Tnode access network, this step is that cooperation route test network is complete
At the access of each node, it is the first step of each node access, belongs to and prepare initial basis work, by node on access switch
After corresponding port has divided VLAN, that is, complete initial basis work, all scene network routings and gateway by
Route test network is completed, and real node and dummy node only pass through the access scene network of the access switch in Experimental Network.
3. scene network virtual routing configuration
If the routing device forwarded in scene network there are three layers, needs to carry out the creation and configuration of virtual flow-line.
The visioning procedure of scene network virtual routing is as shown in Figure 2.
● after virtual flow-line server receives configuration file, soon carry out the creation work of virtual flow-line.
● virtual flow-line server first parses the configuration file received, extract Servers-all, interchanger,
Connection relationship between each node of router includes terminal and road between router and router according to connection relation between nodes
By the connection relationship between device, according to Dijkstra (Di Jiesitela) signal source shortest path algorithm, automatic calculating generates all
Node generates routing table entry information according to shortest path information to the shortest path between any other node.
● virtual flow-line server firstly generates required virtual bridge (Bridge), by Bridge according to configuration file
The corresponding VLAN tag of all of the above port label, i.e. subnet division and VLAN, each node in scene network belong to not
Same VLAN and subnet, each interface meeting with VLAN tag here are connected with bilaminar logic on network between each node.
Meanwhile each virtual flow-line server creates the physical interface binding of a Bridge and server, while all with other
Bridge connection, the physical interface binding of unique trunk interface and every virtual flow-line server on the Bridge are empty
The physical interface of quasi- routing server is connected with the Experimental Network core switch in Experimental Network, to access each Tnode
Node.Tnode node can be linked into route test network in this way, and the gateway of itself subnet is accessed, to realize not
With the routing between subnet node.According to connection relationship between the Bridge in scene network profile, create between Bridge
Virtual link.Some Bridge is used as the virtual router of subsequent step, thus virtual flow-line server by this
The communication channel of a little Bridge configurations and SDN controller, SDN controller manage Bridge by OpenFlow agreement.
● in order to make Bridge be converted into the virtual router (vRouter) with route forwarding function, virtual road at this time
It is communicated to relevant Bridge by the communication channel previously configured by server starting SDN controller and establishes pipe
Control, according to the routing table of scene configuration file generated before server is sent by the api interface of north orientation to SDN controller at this time
Information, port IP address information, after SDN controller receives information, by the channel OpenFlow of south orientation to each Bridge
Flow table is issued, to complete the creation of virtual router.SDN controller, Bridge, operate in virtual flow-line server it
In, the communication between them occurs in server.
4. accessing network configuration
Access network is that user (can be the correlation for the scene network that tenant or other actual use tenants are created
Personnel) scene network creation physical access point is accessed, so that the terminal device of user can be linked into scene network, visit
Ask the real node and dummy node in scene network.
Although the illustrative specific embodiment of the present invention is described above, in order to the research of the art
Personnel understand the present invention, it should be apparent that the present invention is not limited to the range of specific embodiment, to the common skill of the art
For art personnel, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should all include
Within the scope of protection of the invention.
Claims (10)
1. the method for business scenario network rapid build, step include: under a kind of complex network simulated environment
1) server in complex network simulated environment is connected on the access switch of Experimental Network, each access exchange
Machine is connected to the core switch of Experimental Network；The interchanger of access network is connected to the core switch of Experimental Network；
2) network topology structure according to needed for target scene network configuration, virtual router, each IP address section and VLAN are generated
The configuration file of the target scene network, and route test network and Switch control network are sent by the configuration file；
3) Switch control network completes the configurations of node access networks network according to the configuration file；
4) the virtual flow-line server of route test network creates virtual flow-line according to the configuration file, and according to configuration text
Part subnet division and VLAN, by each node division in the target scene network to corresponding VLAN and subnet；
5) each virtual flow-line server creates a virtual bridge, and the virtual machine bridge and the physical interface of a server are tied up
It is fixed, and be separately connected with the virtual bridge of other virtual flow-line servers creation；Each virtual bridge possesses a channel respectively
The channel interface of interface, each virtual bridge is equal and the physical interface binding of every virtual flow-line server, virtual flow-line service
The physical interface of device is connected with the Experimental Network core switch in Experimental Network, to access each node；
6) virtual flow-line server creates the virtual link between virtual switch, and the virtual friendship of configuration according to the configuration file
The communication channel changed planes with SDN controller；
7) virtual flow-line server starting SDN controller is led to by the communication channel configured with corresponding virtual switch
Believe and establishes control；Then virtual flow-line server sends the virtual flow-line, port IP address information to SDN controller, when
SDN controller issues flow table to each virtual switch according to the information received, to complete the creation of virtual router.
2. the method as described in claim 1, which is characterized in that the method for creating the virtual flow-line are as follows: virtual flow-line service
Device from the connection relationship extracted between each node in the configuration file, calculates first according to Dijkstra signal source shortest path algorithm
It generates each node and routing table entry information is generated according to shortest path information to the shortest path between any other node.
3. method according to claim 1 or 2, which is characterized in that described according to the configuration file subnet division and VLAN
Method are as follows: virtual flow-line server generates required virtual bridge according to the configuration file, by virtual bridge all of the above end
Mouth marks corresponding VLAN tag, i.e. subnet division and VLAN.
4. the method as described in claim 1, which is characterized in that in the step 7), virtual flow-line server passes through north orientation
Api interface sends the virtual flow-line, port IP address information to SDN controller, after SDN controller receives information, leads to
The channel OpenFlow for crossing south orientation issues flow table to each virtual switch, to complete the creation of virtual router.
5. the method as described in claim 1, which is characterized in that each virtual router carries out unification by SDN controller
Control and management.
6. the method as described in claim 1, which is characterized in that the configuration file is JSON configuration file；Pass through SSH agreement
Route test network and Switch control network are sent by the configuration file.
7. business scenario network rapid build system under a kind of complex network simulated environment, which is characterized in that including route test
Network, Experimental Network, Switch control network, access network；Wherein,
The Experimental Network supports customized gateway, routing and IP for the customization network scenarios that each business scenario uses；It is multiple
Each node in miscellaneous network simulating environment is linked into the access switch of Experimental Network, and each access switch is connected to Experimental Network
Core switch, Experimental Network and route test network connection；The node includes real node and dummy node；
It include several virtual flow-line servers in the route test network, operation SDN control in the virtual flow-line server
Device, SDN controller is generated by the configuration file of target scene network and management virtual router, realizes the target scene network
Routing between interior joint, and according to the configuration file carry out sub-network division from；It is provided in the route test network each
The gateway of node；The gateway of each node is respectively directed to a corresponding ports of virtual router；It is wrapped in the route test network
Containing several virtual bridges, is realized and be isolated by virtual bridge between the network of different user；
The Switch control network, for the interchanger according to the configuration file to the interchanger of Experimental Network and access network
It is configured；
The access network provides access interface as access point network corresponding with Experimental Network, keeps user accessible
With the network and resource used in complex network simulated environment business scenario.
8. system as claimed in claim 7, which is characterized in that according to network topology knot needed for target scene network configuration
Structure, virtual router, each IP address section and VLAN, generate the configuration file of the target scene network.
9. system as claimed in claim 7, which is characterized in that each virtual flow-line server creates a virtual bridge, should
The binding of the physical interface of virtual machine bridge and a server, and distinguish with the virtual bridge of other virtual flow-line servers creation
Connection；Each virtual bridge possesses a channel interface respectively, and the channel interface of each virtual bridge is equal and every virtual flow-line service
One physical interface of device is bound, the Experimental Network core switch phase in the physical interface and Experimental Network of virtual flow-line server
Connection, to access each node.
10. system as claimed in claim 7, which is characterized in that each virtual router carries out unification by SDN controller
Control and management.
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| CN115776441B (en) * | 2023-02-13 | 2023-04-28 | 北京天弛网络有限公司 | SDN-based virtual private line service issuing method and device, medium and electronic equipment |
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