CN107294797A - Network topology structure recognition methods and system - Google Patents
Network topology structure recognition methods and system Download PDFInfo
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- CN107294797A CN107294797A CN201710735280.4A CN201710735280A CN107294797A CN 107294797 A CN107294797 A CN 107294797A CN 201710735280 A CN201710735280 A CN 201710735280A CN 107294797 A CN107294797 A CN 107294797A
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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
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/14—Network analysis or design
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L2101/00—Indexing scheme associated with group H04L61/00
- H04L2101/60—Types of network addresses
- H04L2101/618—Details of network addresses
- H04L2101/622—Layer-2 addresses, e.g. medium access control [MAC] addresses
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Abstract
The present invention relates to a kind of network topology structure recognition methods and system, protocol data bag is sent to target device by each port of interchanger respectively, and the feedback data packet that target device is returned is captured by each described port respectively；The feedback data packet to each port is parsed respectively, and the first network link information of corresponding ports is obtained from the feedback data packet；The network topology structure of target device being connected with corresponding ports is determined according to the type of the corresponding first network link information in each port respectively.Above-mentioned network topology structure recognition methods and system, automatically scanning can be carried out to network and two-layer network device is correctly recognized, to reach the purpose that comprehensive, real network topology structure is presented, network topology structure recognition efficiency is improved.
Description
Technical field
The present invention relates to communication technical field, more particularly to a kind of network topology structure recognition methods and system.
Background technology
At present, power industry system network safety situation is severeer, and the appearance of various new attack types causes electric power
There are many uncertainties in network security, this requires that grid company does more comprehensive elaborations in terms of the network architecture.Electricity
Net corporate networks are due to being at LAN Intranet, largely using two-layer switching equipment, and because safety problem is prohibited
SNMP (Simple Network Management Protocol, Simple Network Management Protocol) is only used, causes network management platform
The network topological information that can be found and generate is imperfect so that constituent parts are in confused situation to itself live network really.
Conventional art is investigated generally by manual type to each two-layer switching equipment, and draws network topology
Figure, so as to obtain the topological structure between each grid equipment, this mode is less efficient.
The content of the invention
Based on this, it is necessary to for manual type it is less efficient the problem of there is provided a kind of network topology structure recognition methods
And system.
A kind of network topology structure recognition methods, comprises the following steps：
Protocol data bag is sent to target device by each port of interchanger respectively, and passes through each described end respectively
The feedback data packet that mouth crawl target device is returned；
The feedback data packet to each port is parsed respectively, and the of corresponding ports are obtained from the feedback data packet
One network connection information；
The mesh being connected with corresponding ports is determined according to the type of the corresponding first network link information in each port respectively
The network topology structure of marking device.
A kind of network topology structure identifying system, including：
Transceiver module, for sending protocol data bag to target device by each port of interchanger respectively, and respectively
The feedback data packet that target device is returned is captured by each described port；
Parsing module, is parsed for the feedback data packet respectively to each port, is obtained from the feedback data packet
Take the first network link information of corresponding ports；
Topological analysis module, for respectively according to the type of the corresponding first network link information in each port determine with it is right
Answer the network topology structure for the target device that port is connected.
Above-mentioned network topology structure recognition methods and system, by the first net for obtaining each port corresponding ports of interchanger
Network link information, and determine that the network of target device being connected with corresponding ports is opened up according to the type of first network link information
Structure is flutterred, automatically scanning can be carried out to network and correctly recognize two-layer network device, comprehensive, real network is presented to reach
The purpose of topological structure, improves network topology structure recognition efficiency.
Brief description of the drawings
Fig. 1 is the network topology structure recognition methods flow chart of one embodiment；
Fig. 2 is the network topology structure schematic diagram of one embodiment；
Fig. 3 is the structured flowchart of the network topology structure identifying system of one embodiment.
Embodiment
Technical scheme is illustrated below in conjunction with the accompanying drawings.
As shown in figure 1, the present invention provides a kind of network topology structure recognition methods, it may include following steps：
S1, sends protocol data bag by each port of interchanger to target device respectively, and respectively by described each
The feedback data packet that individual port crawl target device is returned；
In one embodiment, the topological structure between respective switch and terminal device can be as shown in Fig. 2 each terminal
Equipment is connected by interchanger, constitutes a LAN, due to the presence of interchanger, each terminal in this LAN is set
It is standby to communicate.It can be seen that, the example shown in Fig. 2 includes 4 interchangers and 4 terminal devices, wherein, interchanger
1 is connected with terminal device 1, terminal device 2 and interchanger 2 respectively, and terminal device 2 is connected by interchanger 3 with terminal device 4
Connect, interchanger 2 is connected with terminal device 3.It is appreciated that Fig. 2 is an exemplary expression, real network topological structure is not
It is limited to this.Specifically, above-mentioned terminal device can be the communication equipment in power system.
In actual applications, interchanger may include multiple ports, each port can typically connect a terminal device or
Connect another interchanger., can in order to identify the topological structure for the other equipment being connected with each port of an interchanger
To send protocol data bag to target device by each port of the interchanger, target device mentioned here is interchanger
All interchangers and terminal device in the network segment of the LAN constituted with terminal device, equivalent to by an interchanger to
All target device Radio Broadcasting Agreements packets in LAN.Target device is received after the protocol data bag, can be to exchange
Machine returns to a feedback data packet.Further, first from respective switch an interchanger can also be selected to be handed over as starting point
Change planes, and protocol data bag is sent by each target device of the starting point interchanger into LAN.
By taking the network topology structure shown in Fig. 2 as an example, can using interchanger 1 as starting point interchanger, and to interchanger 2, hand over
Change planes 3 and terminal device 1 to 4 send protocol data bag.Interchanger 2, interchanger 3 and terminal device 1 to 4 receive the agreement number
After bag, a feedback data packet can be returned to interchanger 1.
In one embodiment, protocol data bag can be：ARP (Address Resolution Protocol, address
Analysis protocol) packet, ICMP (Internet Control Message Protocol, Internet Control Message Protocol) packet,
TCP (Transmission Control Protocol, transmission control protocol) data or UDP (User Datagram
Protocol, UDP) packet.
S2, respectively the feedback data packet to each port parse, obtain corresponding ports from the feedback data packet
First network link information；
In one embodiment, after being parsed to the feedback data packet, the first network can be connected
Information is stored into the network connection information list of corresponding ports.Further, when the acquisition correspondence from the feedback data packet
During the first network link information of port, the interchanger can be logged in, it is then possible to the network connection information from the port
The first network link information is read in list.Specifically, the network connection information list includes being used to store MAC Address
MAC Address list, the vlan list for storing vlan information, the port list for being subordinated to each VLAN respectively, Yi Jiyong
In the MAC Address list of the MAC Address of storage Microsoft Loopback Adapter.
S3, determines what is be connected with corresponding ports according to the type of the corresponding first network link information in each port respectively
The network topology structure of target device.
In one embodiment, if only including a MAC Address in the corresponding first network link information in the port, sentence
The fixed target device being connected with the port is terminal device.In another embodiment, if the port corresponding first
Network connection information includes the MAC Address of actual network interface card and the MAC Address of Microsoft Loopback Adapter, judges what is be connected with the port
Target device is the terminal device with virtual machine.In another embodiment, if the corresponding first network connection letter in the port
Multiple MAC Address are wrapped in breath, the target device being connected with the port are judged as interchanger, and the interchanger is connected with end
End equipment.
Still illustrated by taking the network topology structure shown in Fig. 2 as an example.Set when by target of the interchanger 1 into LAN
Preparation send protocol data bag, it is assumed that terminal device 1, terminal device 2 and interchanger 2 respectively with the port 1 of interchanger 1, port 2 and
Port 3 is connected, if terminal device 1 is the terminal device without virtual machine, and the first network that the port 1 of interchanger is received connects
Connect and terminal device 1 MAC Address of itself is only included in information, be i.e. the MAC Address of the actual network interface card of terminal device 1.If in addition, eventually
End equipment 2 is the terminal device with virtual machine, should be included eventually in the first network link information that the port 2 of interchanger 1 is received
The MAC Address of Microsoft Loopback Adapter entrained by the MAC Address and terminal device 2 of the actual network interface card of end equipment 2.In addition, interchanger
The end that should include the MAC Address of interchanger 2 in the first network link information that port 3 is received and be connected with interchanger 2
The MAC Address of end equipment 3.
Further, after execution of step S3, the target device can also be logged in；Inquire about the target device
Second network connection information；Determine that other targets being connected with the target device are set according to second network connection information
Standby network topology structure.
Com-parison and analysis is carried out to the port basis of interchanger using this method, show that detailed interchanger different port connects
The MAC Address situation of the opposite equip. connect, so as to judge whether opposite equip. is connected by double layer network interchanger.
Still illustrated by taking the network topology structure shown in Fig. 2 as an example.When identifying that the terminal being connected with interchanger 1 sets
Standby 1, can also be respectively with terminal device 1, terminal device 2 and interchanger 2 after the topological structure of terminal device 2 and interchanger 2
As point device is played, second network connection information for playing point device is analyzed.Assuming that the phase of port 2 of terminal device 3 and interchanger 2
Connection, then by logging in interchanger 2, can get the terminal device 3 being connected with interchanger 2 by the port 2 of interchanger 2
The second network connection information, so that it is determined that the annexation of terminal device 3 and interchanger 2.Similarly, registration terminal equipment is passed through
2, can identify that interchanger 3 is connected with terminal device 2, interchanger 3 is then logged in again, can identify terminal device 4 with
The specific annexation of interchanger 3.So, by traveling through each target device in LAN successively, so as to be spliced into
The network topology structure of whole LAN.
The present invention complies with the new development trend of network security, and power network takes advanced Information Technology Methods, to network security
Situation is diagnosed, managed and presented, and long-term Networked RAID standard process is set up, examining for power industry network security
Disconnected implementation of work is into work usually.Severe under the new situation in network security, the main purpose of this technology is to try to energy
It is enough to find simultaneously correctly to recognize two-layer network device so that it is complete that the network topology investigation instrument of this technology of use can be automated
It is whole, correct, network topology is comprehensively presented, allow users to become apparent from finds in network with the presence or absence of two layers of suspicious friendship
Exchange device, if there is a situation where transregional interconnection.
As shown in figure 3, the present invention also provides a kind of network topology structure identifying system, it may include：
Transceiver module 10, for sending protocol data bag to target device by each port of interchanger respectively, and divides
The feedback data packet that target device is returned is not captured by each described port；
In one embodiment, the topological structure between respective switch and terminal device can be as shown in Fig. 2 each terminal
Equipment is connected by interchanger, constitutes a LAN, due to the presence of interchanger, each terminal in this LAN is set
It is standby to communicate.It can be seen that, the example shown in Fig. 2 includes 4 interchangers and 4 terminal devices, wherein, interchanger
1 is connected with terminal device 1, terminal device 2 and interchanger 2 respectively, and terminal device 2 is connected by interchanger 3 with terminal device 4
Connect, interchanger 2 is connected with terminal device 3.It is appreciated that Fig. 2 is an exemplary expression, real network topological structure is not
It is limited to this.Specifically, above-mentioned terminal device can be the communication equipment in power system.
In actual applications, interchanger may include multiple ports, each port can typically connect a terminal device or
Connect another interchanger., can in order to identify the topological structure for the other equipment being connected with each port of an interchanger
To send protocol data bag to target device by each port of the interchanger, target device mentioned here is interchanger
All interchangers and terminal device in the network segment of the LAN constituted with terminal device, equivalent to by an interchanger to
All target device Radio Broadcasting Agreements packets in LAN.Target device is received after the protocol data bag, can be to exchange
Machine returns to a feedback data packet.Further, first from respective switch an interchanger can also be selected to be handed over as starting point
Change planes, and protocol data bag is sent by each target device of the starting point interchanger into LAN.
By taking the network topology structure shown in Fig. 2 as an example, can using interchanger 1 as starting point interchanger, and to interchanger 2, hand over
Change planes 3 and terminal device 1 to 4 send protocol data bag.Interchanger 2, interchanger 3 and terminal device 1 to 4 receive the agreement number
After bag, a feedback data packet can be returned to interchanger 1.
In one embodiment, protocol data bag can be：ARP (Address Resolution Protocol, address
Analysis protocol) packet, ICMP (Internet Control Message Protocol, Internet Control Message Protocol) packet,
TCP (Transmission Control Protocol, transmission control protocol) data or UDP (User Datagram
Protocol, UDP) packet.
Parsing module 20, is parsed for the feedback data packet respectively to each port, from the feedback data packet
Obtain the first network link information of corresponding ports；
In one embodiment, after being parsed to the feedback data packet, the first network can be connected
Information is stored into the network connection information list of corresponding ports.Further, when the acquisition correspondence from the feedback data packet
During the first network link information of port, the interchanger can be logged in, it is then possible to the network connection information from the port
The first network link information is read in list.Specifically, the network connection information list includes being used to store MAC Address
MAC Address list, the vlan list for storing vlan information, the port list for being subordinated to each VLAN respectively, Yi Jiyong
In the MAC Address list of the MAC Address of storage Microsoft Loopback Adapter.
Topological analysis module 30, for respectively according to the type of the corresponding first network link information in each port determine with
The network topology structure for the target device that corresponding ports are connected.
In one embodiment, if only including a MAC Address in the corresponding first network link information in the port, sentence
The fixed target device being connected with the port is terminal device.In another embodiment, if the port corresponding first
Network connection information includes the MAC Address of actual network interface card and the MAC Address of Microsoft Loopback Adapter, judges what is be connected with the port
Target device is the terminal device with virtual machine.In another embodiment, if the corresponding first network connection letter in the port
Multiple MAC Address are wrapped in breath, the target device being connected with the port are judged as interchanger, and the interchanger is connected with end
End equipment.
Still illustrated by taking the network topology structure shown in Fig. 2 as an example.Set when by target of the interchanger 1 into LAN
Preparation send protocol data bag, it is assumed that terminal device 1, terminal device 2 and interchanger 2 respectively with the port 1 of interchanger 1, port 2 and
Port 3 is connected, if terminal device 1 is the terminal device without virtual machine, and the first network that the port 1 of interchanger is received connects
Connect and terminal device 1 MAC Address of itself is only included in information, be i.e. the MAC Address of the actual network interface card of terminal device 1.If in addition, eventually
End equipment 2 is the terminal device with virtual machine, should be included eventually in the first network link information that the port 2 of interchanger 1 is received
The MAC Address of Microsoft Loopback Adapter entrained by the MAC Address and terminal device 2 of the actual network interface card of end equipment 2.In addition, interchanger
The end that should include the MAC Address of interchanger 2 in the first network link information that port 3 is received and be connected with interchanger 2
The MAC Address of end equipment 3.
Further, after execution of step S3, the target device can also be logged in；Inquire about the target device
Second network connection information；Determine that other targets being connected with the target device are set according to second network connection information
Standby network topology structure.
Com-parison and analysis is carried out to the port basis of interchanger using this method, show that detailed interchanger different port connects
The MAC Address situation of the opposite equip. connect, so as to judge whether opposite equip. is connected by double layer network interchanger.
Still illustrated by taking the network topology structure shown in Fig. 2 as an example.When identifying that the terminal being connected with interchanger 1 sets
Standby 1, can also be respectively with terminal device 1, terminal device 2 and interchanger 2 after the topological structure of terminal device 2 and interchanger 2
As point device is played, second network connection information for playing point device is analyzed.Assuming that the phase of port 2 of terminal device 3 and interchanger 2
Connection, then by logging in interchanger 2, can get the terminal device 3 being connected with interchanger 2 by the port 2 of interchanger 2
The second network connection information, so that it is determined that the annexation of terminal device 3 and interchanger 2.Similarly, registration terminal equipment is passed through
2, can identify that interchanger 3 is connected with terminal device 2, interchanger 3 is then logged in again, can identify terminal device 4 with
The specific annexation of interchanger 3.So, by traveling through each target device in LAN successively, so as to be spliced into
The network topology structure of whole LAN.
The present invention complies with the new development trend of network security, and power network takes advanced Information Technology Methods, to network security
Situation is diagnosed, managed and presented, and long-term Networked RAID standard process is set up, examining for power industry network security
Disconnected implementation of work is into work usually.Severe under the new situation in network security, the main purpose of this technology is to try to energy
It is enough to find simultaneously correctly to recognize two-layer network device so that it is complete that the network topology investigation instrument of this technology of use can be automated
It is whole, correct, network topology is comprehensively presented, allow users to become apparent from finds in network with the presence or absence of two layers of suspicious friendship
Exchange device, if there is a situation where transregional interconnection.
The network topology structure recognition methods of the network topology structure identifying system of the present invention and the present invention is corresponded,
The technical characteristic and its advantage that the embodiment of above-mentioned network topology structure recognition methods is illustrated are applied to network topology knot
In the embodiment of structure identifying system, hereby give notice that.
Further, the present invention also provides a kind of computer-readable recording medium, is stored thereon with computer program, the journey
Sequence is executed by processor network topology structure recognition methods.
The implementation of network topology structure recognition methods performed by computer program on the computer-readable recording medium
Example is identical with above-mentioned network topology structure recognition methods, and here is omitted.
Further, the present invention also provides a kind of computer equipment, including memory, processor and storage are on a memory
And the computer program that can be run on a processor, network topology structure identification side is realized during the computing device described program
Method.
The implementation of network topology structure recognition methods performed by computer program on the processor of the computer equipment
Example is identical with above-mentioned network topology structure recognition methods, and here is omitted.
Represent in flow charts or logic and/or step described otherwise above herein, for example, being considered use
In the order list for the executable instruction for realizing logic function, it may be embodied in any computer-readable medium, for
Instruction execution system, device or equipment (such as computer based system including the system of processor or other can be held from instruction
The system of row system, device or equipment instruction fetch and execute instruction) use, or combine these instruction execution systems, device or set
It is standby and use.For the purpose of this specification, " computer-readable medium " can any can be included, store, communicate, propagate or pass
Defeated program is for instruction execution system, device or equipment or the dress for combining these instruction execution systems, device or equipment and using
Put.
The more specifically example (non-exhaustive list) of computer-readable medium includes following：With one or more wirings
Electrical connection section (electronic installation), portable computer diskette box (magnetic device), random access memory (RAM), read-only storage
(ROM), erasable edit read-only storage (EPROM or flash memory), fiber device, and portable optic disk is read-only deposits
Reservoir (CDROM).In addition, can even is that can be in the paper of printing described program thereon or other are suitable for computer-readable medium
Medium, because can then enter edlin, interpretation or if necessary with it for example by carrying out optical scanner to paper or other media
His suitable method is handled electronically to obtain described program, is then stored in computer storage.
It should be appreciated that each several part of the present invention can be realized with hardware, software, firmware or combinations thereof.Above-mentioned
In embodiment, the software that multiple steps or method can in memory and by suitable instruction execution system be performed with storage
Or firmware is realized.If, and in another embodiment, can be with well known in the art for example, realized with hardware
Any one of row technology or their combination are realized：With the logic gates for realizing logic function to data-signal
Discrete logic, the application specific integrated circuit with suitable combinational logic gate circuit, programmable gate array (PGA), scene
Programmable gate array (FPGA) etc..
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means to combine specific features, structure, material or the spy that the embodiment or example are described
Point is contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not
Necessarily refer to identical embodiment or example.Moreover, specific features, structure, material or the feature of description can be any
One or more embodiments or example in combine in an appropriate manner.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope of this specification record is all considered to be.
Embodiment described above only expresses the several embodiments of the present invention, and it describes more specific and detailed, but simultaneously
Can not therefore it be construed as limiting the scope of the patent.It should be pointed out that coming for one of ordinary skill in the art
Say, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention
Scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (10)
1. a kind of network topology structure recognition methods, it is characterised in that comprise the following steps：
Protocol data bag is sent to target device by each port of interchanger respectively, and grabbed respectively by each described port
The feedback data packet for taking target device to return；
The feedback data packet to each port is parsed respectively, and the first net of corresponding ports is obtained from the feedback data packet
Network link information；
Determine that the target being connected with corresponding ports is set according to the type of the corresponding first network link information in each port respectively
Standby network topology structure.
2. network topology structure recognition methods according to claim 1, it is characterised in that respectively according to each port correspondence
First network link information type determine be connected with corresponding ports target device network topology structure the step of wrap
Include：
If only including a MAC Address in the corresponding first network link information in the port, judgement is connected with the port
Target device be terminal device.
3. network topology structure recognition methods according to claim 1, it is characterised in that respectively according to each port correspondence
First network link information type determine be connected with corresponding ports target device network topology structure the step of and also
Including：
If the corresponding first network link information in the port is with including the MAC Address of actual network interface card and the MAC of Microsoft Loopback Adapter
Location, judges the target device being connected with the port as the terminal device with virtual machine.
4. network topology structure recognition methods according to claim 1, it is characterised in that respectively according to each port correspondence
First network link information type determine be connected with corresponding ports target device network topology structure the step of and also
Including：
If the corresponding first network link information in the port includes multiple MAC Address, judge what is be connected with the port
Target device is interchanger, and the interchanger is connected with terminal device.
5. network topology structure recognition methods according to claim 1, it is characterised in that respectively according to each port pair
The type for the first network link information answered is determined after the network topology structure for the target device being connected with corresponding ports, is gone back
Comprise the following steps：
Log in the target device；
Inquire about the second network connection information of the target device；
The network topology for other target devices for determining to be connected with the target device according to second network connection information
Structure.
6. network topology structure recognition methods according to claim 1, it is characterised in that enter to the feedback data packet
It is further comprising the steps of after row parsing：
By first network link information storage into the network connection information list of corresponding ports；
The step of obtaining the first network link information carried in the feedback data packet includes：
Log in the interchanger；
The first network link information is read from the network connection information list of the port.
7. network topology structure recognition methods according to claim 6, it is characterised in that the network connection information list
Including the MAC Address list for storing MAC Address, the vlan list for storing vlan information, each is subordinated to respectively
VLAN port list, and for the MAC Address list for the MAC Address for storing Microsoft Loopback Adapter.
8. a kind of network topology structure identifying system, it is characterised in that including：
Transceiver module, for sending protocol data bag to target device by each port of interchanger respectively, and passes through respectively
The feedback data packet that each port crawl target device is returned；
Parsing module, is parsed for the feedback data packet respectively to each port, the acquisition pair from the feedback data packet
Answer the first network link information of port；
Topological analysis module, for being determined and corresponding end according to the type of the corresponding first network link information in each port respectively
The network topology structure for the target device that mouth is connected.
9. a kind of computer-readable recording medium, is stored thereon with computer program, it is characterised in that the program is held by processor
Network topology structure recognition methods described in row claim 1 to 7 any one.
10. a kind of computer equipment, including memory, processor and storage are on a memory and the meter that can run on a processor
Calculation machine program, it is characterised in that the net described in claim 1 to 7 any one is realized during the computing device described program
Network Topology identification method.
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| CN108900351A (en) * | 2018-07-13 | 2018-11-27 | 中国科学院信息工程研究所 | The recognition methods of Intranet device type and device |
| CN109150628A (en) * | 2018-10-11 | 2019-01-04 | 北京华力创通科技股份有限公司 | A kind of grid topology automatic generation method and device |
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| CN109831334A (en) * | 2019-02-20 | 2019-05-31 | 普联技术有限公司 | Constructing network topology method, apparatus and terminal device |
| CN110855464A (en) * | 2018-08-21 | 2020-02-28 | 国网天津市电力公司 | Network topology structure adjusting method and device |
| CN113193994A (en) * | 2021-04-22 | 2021-07-30 | 大连市共进科技有限公司 | Topology discovery method, device, terminal equipment and medium |
| WO2021243524A1 (en) * | 2020-06-01 | 2021-12-09 | 西门子股份公司 | Network topology construction method and apparatus, and computer readable medium |
| CN114465904A (en) * | 2020-10-21 | 2022-05-10 | 西门子（中国）有限公司 | Network topology construction method and computing equipment |
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