CN111654402B - Network topology creation method, device, equipment and storage medium - Google Patents
Network topology creation method, device, equipment and storage medium Download PDFInfo
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- CN111654402B CN111654402B CN202010581187.4A CN202010581187A CN111654402B CN 111654402 B CN111654402 B CN 111654402B CN 202010581187 A CN202010581187 A CN 202010581187A CN 111654402 B CN111654402 B CN 111654402B
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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
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/2801—Broadband local area networks
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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
- H04L41/0803—Configuration setting
- H04L41/0806—Configuration setting for initial configuration or provisioning, e.g. plug-and-play
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/50—Reducing energy consumption in communication networks in wire-line communication networks, e.g. low power modes or reduced link rate
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Abstract
The invention relates to the technical field of clouds and discloses a network topology creation method, a device, equipment and a storage medium. The network topology creation method comprises the following steps: obtaining a network topology creation task, wherein the network topology creation task comprises: a source IP address, a target lan address; reading network setting of a local area network address, and selecting a network component from a preset target local area network architecture according to the network setting; creating a network link in the target local area network according to the network component; acquiring a built-in exchange module in the target local area network architecture, and establishing a mapping relation between a network link and a source IP address; and generating a network topology set between the source IP address and the local area network address based on the mapping relation. The optimal data topology route is selected through the communication cost calculation, the transmission time limitation and the flow limitation of the virtual machine to the data topology, so that the method is more efficient, less in manual operation and easier to maintain than the traditional exchange network line replacement.
Description
Technical Field
The present invention relates to the field of cloud technologies, and in particular, to a method, an apparatus, a device, and a storage medium for creating a network topology.
Background
The rapid development of the internet brings about the great development of basic communication construction, and along with the continuous acceleration of the integration of industrialization and informatization and the continuous increase of public safety investment of government, the market scale of private network communication is continuously expanded in recent years. In the rapid development process, most of the communication modes are modes of routers and switches in the mode of connecting the connecting terminals with each other. This connection and data signal distribution may be difficult to update in hardware with constant hardware updates and may result in insufficient adaptability in some cases where the hardware is not compatible.
In the practical process, when the method faces to the hardware equipment and the access points which are continuously iterated, the access data line of the switch is complicated, and the topology structure in the whole network is difficult to determine. When the network topology is obtained, the topology of different connections needs to be modified according to the connection relationship by manually testing each connection line. The modification method is not only low in efficiency, but also brings great difficulty to maintenance personnel, the problem points cannot be found timely and effectively, and the connection of each line needs to be tested continuously to be finally determined. The non-intuitionistic and unordered network connection mode is needed because the production efficiency is low.
Disclosure of Invention
The invention mainly aims to solve the problems of complex network topology acquisition process and long time consumption.
The first aspect of the present invention provides a network topology creation method, including:
obtaining a network topology creation task, wherein the network topology creation task comprises: a source IP address, a target lan address;
reading network setting of the local area network address, and selecting a network component from a preset target local area network architecture according to the network setting;
creating a network link in the target local area network according to the network component;
establishing a mapping relation between the network link and the source IP address through a built-in exchange module in the target local area network architecture;
and generating a network topology set between the source IP address and the local area network address based on the mapping relation.
Optionally, in a first implementation manner of the first aspect of the present invention, after the acquiring a task of creating a network topology, the method further includes:
judging whether the source IP address and the local area network address are preset effective IP addresses or not, wherein the effective IP addresses are used for carrying out network link;
if yes, establishing transmission connection with the source IP address;
If not, the preset error reporting information is sent to a preset management terminal and the network topology creation task is acquired again, wherein the management terminal is used for displaying the network topology creation state.
Optionally, in a second implementation manner of the first aspect of the present invention, the creating, according to the network component, a network link in the target lan includes:
the local area network address is sent to a preset network resource pool to obtain an IP address state table, wherein the network resource pool is used for storing all the effective IP addresses, and the IP address state table comprises: an occupied IP address table in the local area network address and an unoccupied IP address table in the local area network address;
reading the occupied IP address table to obtain the number of occupied IP addresses, and judging whether the number exceeds a preset threshold value;
if yes, the preset unavailable resource information is sent to the management terminal;
if not, a network link is created in the target local area network according to the network component and the unoccupied IP address table.
Optionally, in a third implementation manner of the first aspect of the present invention, after the generating, based on the mapping relationship, a network topology set between the source IP address and the local area network address, the method further includes:
Calculating node communication cost of node connection corresponding to any two IP addresses in the mapping relation;
analyzing each topological connection in the network topology set to obtain a node connection route corresponding to each topological connection;
calculating the node communication cost sum corresponding to each node connection route to obtain the communication cost corresponding to all topological connections;
comparing the communication cost corresponding to all the topological connections to obtain the topological connection corresponding to the minimum communication cost, and taking the topological connection as the optimal connection, wherein the optimal connection is a preferred connection mode for transmitting information;
and establishing a data transmission channel from the source IP address to the local area network address according to the optimal connection.
Optionally, in a fourth implementation manner of the first aspect of the present invention, before calculating a sum of node communication costs corresponding to each node connection route to obtain communication costs corresponding to all topology connections, the method further includes:
respectively calculating the corresponding transmission time of each node connecting route, and judging whether the transmission time exceeds a preset time threshold;
if yes, not calculating the node communication cost sum corresponding to the transmission time, otherwise, calculating the node communication cost sum.
Optionally, in a fifth implementation manner of the first aspect of the present invention, after comparing the sizes of the communication costs corresponding to all the topology connections to obtain the topology connection corresponding to the minimum communication cost, the method further includes:
calculating the ratio of the data transmission quantity of the topological connection corresponding to the minimum communication cost to the data transmission quantity of the network topological set to obtain the transmission ratio;
multiplying the transmission proportion by a preset maximum flow limit threshold to obtain a flow limit value;
judging whether the flow limit value is larger than a preset physical constraint value, wherein the physical constraint is used for obtaining an average value based on the physical transmission speed limit of each topological connection;
if yes, taking the physical constraint value as a threshold value of flow restriction;
if not, the flow limit value is used as a flow limit threshold value.
Optionally, in a sixth implementation manner of the first aspect of the present invention, the generating, based on the mapping relationship, a network topology set between the source IP address and the local area network address includes:
reading server information corresponding to all IP addresses in the local area network address, and generating an initial network topology based on all the server information;
Detecting whether a newly added server exists in the local area network address;
if yes, reading address information and access port information of the newly added server;
adding the address information and the access port information into the initial network topology to obtain a corrected network topology;
and generating a network topology set between the source IP address and the local area network address based on the modified network topology.
A second aspect of the present invention provides a network topology creation apparatus, comprising:
the acquisition module is used for acquiring a network topology creation task, and the network topology creation task comprises the following steps: a source IP address, a target lan address;
the selection module is used for reading the network setting of the local area network address and selecting a network component from a preset target local area network architecture according to the network setting;
a creation module for creating a network link in the target local area network according to the network component;
the switching module is used for establishing a mapping relation between the network link and the source IP address through the switching module built in the target local area network architecture;
and the topology module is used for generating a network topology set between the source IP address and the local area network address based on the mapping relation.
Optionally, in a first implementation manner of the second aspect of the present invention, the network topology creating device further includes a judging module, where the judging module is specifically configured to:
judging whether the source IP address and the local area network address are preset effective IP addresses or not, wherein the effective IP addresses are used for carrying out network link;
if yes, establishing transmission connection with the source IP address;
if not, the preset error reporting information is sent to a preset management terminal and the network topology creation task is acquired again, wherein the management terminal is used for displaying the network topology creation state.
Optionally, in a second implementation manner of the second aspect of the present invention, the creating module is specifically configured to:
the local area network address is sent to a preset network resource pool to obtain an IP address state table, wherein the network resource pool is used for storing all the effective IP addresses, and the IP address state table comprises: an occupied IP address table in the local area network address and an unoccupied IP address table in the local area network address;
reading the occupied IP address table to obtain the number of occupied IP addresses, and judging whether the number exceeds a preset threshold value;
Optionally, in a third implementation manner of the second aspect of the present invention, the topology module is specifically configured to:
reading server information corresponding to all IP addresses in the local area network address, and generating an initial network topology based on all the server information;
detecting whether a newly added server exists in the local area network address;
if yes, reading address information and access port information of the newly added server;
adding the address information and the access port information into the initial network topology to obtain a corrected network topology;
and generating a network topology set between the source IP address and the local area network address based on the modified network topology.
Optionally, in a fourth implementation manner of the second aspect of the present invention, the connection module is specifically configured to:
calculating node communication cost of node connection corresponding to any two IP addresses in the mapping relation;
analyzing each topological connection in the network topology set to obtain a node connection route corresponding to each topological connection;
calculating the node communication cost sum corresponding to each node connection route to obtain the communication cost corresponding to all topological connections;
comparing the communication cost corresponding to all the topological connections to obtain the topological connection corresponding to the minimum communication cost, and taking the topological connection as the optimal connection, wherein the optimal connection is a preferred connection mode for transmitting information;
And establishing a data transmission channel from the source IP address to the local area network address according to the optimal connection.
Optionally, in a fifth implementation manner of the second aspect of the present invention, the network topology creating apparatus further includes a duration module, where the duration module is specifically configured to:
respectively calculating the corresponding transmission time of each node connecting route, and judging whether the transmission time exceeds a preset time threshold;
if yes, not calculating the node communication cost sum corresponding to the transmission time, otherwise, calculating the node communication cost sum.
Optionally, in a sixth implementation manner of the second aspect of the present invention, the network topology creating apparatus further includes a traffic module, where the traffic module is specifically configured to:
calculating the ratio of the data transmission quantity of the topological connection corresponding to the minimum communication cost to the data transmission quantity of the network topological set to obtain the transmission ratio;
multiplying the transmission proportion by a preset maximum flow limit threshold to obtain a flow limit value;
judging whether the flow limit value is larger than a preset physical constraint value, wherein the physical constraint is used for obtaining an average value based on the physical transmission speed limit of each topological connection;
If yes, taking the physical constraint value as a threshold value of flow restriction;
if not, the flow limit value is used as a flow limit threshold value.
A third aspect of the present invention provides a network topology creation apparatus, comprising: the system comprises a memory and at least one processor, wherein instructions are stored in the memory, and the memory and the at least one processor are interconnected through a line; the at least one processor invokes the instructions in the memory to cause the network topology creation device to perform the network topology creation method described above.
A fourth aspect of the present invention provides a computer-readable storage medium having instructions stored therein which, when run on a computer, cause the computer to perform the network topology creation method described above.
In the technical scheme provided by the invention, a local area network creation request is acquired, wherein the local area network creation request comprises: obtaining a network topology creation task, wherein the network topology creation task comprises: a source IP address, a target lan address; reading network setting of the local area network address, and selecting a network component from a preset target local area network architecture according to the network setting; creating a network link in the target local area network according to the network component; establishing a mapping relation between the network link and the source IP address through a built-in exchange module in the target local area network architecture; and generating a network topology set between the source IP address and the local area network address based on the mapping relation. In the embodiment of the invention, the equivalent function of the switch plus router is obtained by using the data content in the virtual machine distribution network, the data distribution topology of the data network can be changed in an efficient and visual way, and the optimal data topology route is selected by the virtual machine through the communication cost calculation, the transmission time limitation and the flow limitation of the data topology, so that the method is more efficient and less in manual operation and easier to maintain than the traditional switch network line route replacement.
Drawings
Fig. 1 is a schematic diagram of a first embodiment of a network topology creation method according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a second embodiment of a network topology creation method according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a third embodiment of a network topology creation method according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a fourth embodiment of a network topology creation method according to an embodiment of the present invention;
fig. 5 is a schematic diagram of a fifth embodiment of a network topology creation method according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of an embodiment of a network topology creation apparatus according to an embodiment of the present invention;
fig. 7 is a schematic diagram of another embodiment of a network topology creation apparatus according to an embodiment of the present invention;
fig. 8 is a schematic diagram of an embodiment of a network topology creation apparatus according to an embodiment of the present invention.
Detailed Description
The embodiment of the invention provides a network topology creation method, a device, equipment and a storage medium, and in the technical scheme provided by the invention, a local area network creation request is obtained, wherein the local area network creation request comprises the following steps: sending out an IP address and a data receiving address; reading network setting of the data receiving address, and selecting a network component from a preset virtual network creation architecture according to the network setting, wherein the virtual network creation architecture is an integrated unit which is developed based on an embedded development technology and is particularly used for constructing a virtual local area network; creating a network link based on the network component and the data receiving address; establishing a mapping relation between the network link and the departure IP address through a built-in exchange module in the virtual network establishment architecture; and generating a network topology set between the sending IP address and the data receiving address according to the mapping relation. In the embodiment of the invention, the equivalent function of the switch plus router is obtained by using the data content in the virtual machine distribution network, the data distribution topology of the data network can be changed in an efficient and visual way, and the optimal data topology route is selected by the virtual machine through the communication cost calculation, the transmission time limitation and the flow limitation of the data topology, so that the method is more efficient and less in manual operation and easier to maintain than the traditional switch network line route replacement.
The terms "first," "second," "third," "fourth" and the like in the description and in the claims and in the above drawings, if any, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments described herein may be implemented in other sequences than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed or inherent to such process, method, article, or apparatus.
For easy understanding, the following describes a specific flow of an embodiment of the present invention, referring to fig. 1, and a first embodiment of a network topology creation method in an embodiment of the present invention includes:
101. obtaining a network topology creation task, wherein the network topology creation task comprises: a source IP address, a target lan address;
In this embodiment, the data allocation request is a determined host, the receiving network address is a subnet, and the network address received at the obtained sending IP address is "119.254.200.4" and the network address received at the receiving subnet is an address "192.168.10.32" ranging to an address including thirty-two hosts, which may be obtained by wireless transmission or network connection when obtaining the data allocation.
102. Reading network setting of the local area network address, and selecting a network component from a preset target local area network architecture according to the network setting;
in this embodiment, the target lan architecture is a set of network connection device information for constructing the target lan, and the network component is a subset of network connection device information for constructing the target lan. After obtaining the network setting according to the obtained data receiving address "202.112.14.128", the network setting in "202.112.14.128" needs to be read, where the data in the network setting includes network protocol selection, opening and closing of a network interface, limitation of network traffic, and the like, and the addresses of all hosts in the subnet "202.112.14.128" are obtained in the network setting, where the subnet number is: 128, then the corresponding host IP address is "202.112.14.137" and the known mask is: "255.255.255.224". After the network address is obtained, the host address is obtained according to the network address, and the network segment information is the subnet set of the host. For example, "202.112.14.128", "202.112.14.129", "202.112.14.130" are segment information, and there are three hosts on a subnet.
103. Creating a network link in the target local area network according to the network component;
in this embodiment, it is determined whether the IP addresses of the three hosts "202.112.14.128", "202.112.14.129", and "202.112.14.130" are idle, and each host is tested for idle one by one, if so, the idle count is incremented by one, and if not, the next test is continued. In another embodiment, all terminals in the subnet are broadcast using the broadcast transmission information, and then the IP addresses of the terminals that are statistically fed back, e.g., only "202.112.14.130" are free, then it is determined that there are free IP addresses.
104. Establishing a mapping relation between the network link and the source IP address through a built-in exchange module in the target local area network architecture;
in this embodiment, the switching module is configured to allocate an integrated unit of network resources. The free IP address is connected with the IP address of the built-in switching module to form a bridge of a local area network, wherein the data distribution is carried out by the switching module. The exchange module can be developed based on a linux kernel, and can be developed by using a TCP/IP communication protocol or an ISP protocol. After forming a local area network with all the idle IP addresses, the local area network is connected with the sent IP addresses, all the IP addresses are connected at the exchange module, and the exchange module is used as a center for data interaction.
105. And generating a network topology set between the source IP address and the local area network address based on the mapping relation.
In this embodiment, there are two free IP addresses "202.112.14.128", "202.112.14.129" and the IP address is issued as "192.168.1.14", so that at least two topology connections "192.168.1.14" to "202.112.14.128", "192.168.1.14" to "202.112.14.129" are formed. There are three routes from "192.168.1.14" to "202.112.14.128" and two routes from "192.168.1.14" to "202.112.14.129", for a total of five topological connections. In the process of establishing the connection, broadcast signals are used for propagation in the local area network, and the idle IP address for obtaining the data connection sends back a transmission establishment signal.
In the embodiment of the invention, the equivalent function of the switch plus router is obtained by using the data content in the virtual machine distribution network, the data distribution topology of the data network can be changed in an efficient and visual way, and the optimal data topology route is selected by the virtual machine through the communication cost calculation, the transmission time limitation and the flow limitation of the data topology, so that the method is more efficient and less in manual operation and easier to maintain than the traditional switch network line route replacement.
Referring to fig. 2, a second embodiment of a network topology creation method according to an embodiment of the present invention includes:
201. obtaining a network topology creation task, wherein the network topology creation task comprises: a source IP address, a target lan address;
202. judging whether the source IP address and the local area network address are preset effective IP addresses or not, wherein the effective IP addresses are used for carrying out network link;
in the present embodiment, when the IP address is "119.254.200.4" and the received data address is "192.168.1.14", if "119.254.200.4" is set as a dangerous data source in the data system, it is considered that the address exceeds the configuration range when the address is detected, and the configuration is not performed. In another embodiment, "22222, 55555, 6666" does not conform to the naming rule of IPv4 and IPv6 as the outgoing IP address, and in the case of a false report IP address, "22222, 55555, 6666" is not configured beyond the configuration range.
203. If not, the preset error reporting information is sent to a preset management terminal and the network topology creation task is acquired again;
in this embodiment, if the received data address "192.168.1.14" is not within the configuration authority of the virtual machine, the address host refuses access, and if the received data address exceeds the configuration range, an error message is returned and address configuration is terminated.
204. If yes, establishing transmission connection with the source IP address;
in this embodiment, both the sending IP address and the data receiving address belong to accessible configuration ranges, so that the sending IP address and the virtual machine are first connected, after the virtual machine searches for the received terminal IP address, the virtual machine is connected with the terminal IP address, and the virtual machine is used as a network route to complete network connection, and finally, network topology connection is completed. When the sending IP address '119.254.200.4' and the receiving data address '192.168.1.14' are both confirmed to be in the configuration range, a transmission protocol is established for the IP address '119.254.200.4', and the virtual machine receives data of '119.254.200.4' as transit. After a new connection is obtained in "192.168.1.14", the data "119.254.200.4" can be directly connected with "192.168.1.14", or the virtual machine can be used as a relay, and the data can be transmitted from the virtual machine to "119.254.200.4".
205. Reading network setting of the local area network address, and selecting a network component from a preset target local area network architecture according to the network setting;
206. creating a network link in the target local area network according to the network component;
207. establishing a mapping relation between the network link and the source IP address through a built-in exchange module in the target local area network architecture;
208. And generating a network topology set between the source IP address and the local area network address based on the mapping relation.
In the embodiment of the invention, the filtering invalid IP flow is increased, the processing speed is improved, and the exchange of the virtual machine interactive data is more efficient, less manual operation and easier maintenance than the exchange of the traditional switch network line.
Referring to fig. 3, a third embodiment of a network topology creation method according to an embodiment of the present invention includes:
301. obtaining a network topology creation task, wherein the network topology creation task comprises: a source IP address, a target lan address;
302. reading network setting of the local area network address, and selecting a network component from a preset target local area network architecture according to the network setting;
303. the local area network address is sent to a preset network resource pool to obtain an IP address state table;
in this embodiment, the network segment information is sent to the network resource pool, and the network resource pool analyzes and determines the network segment information. For example, the network segment information "192.168.10.32", "192.168.10.33", "192.168.10.34", "192.168.10.35", "192.168.10.36" is sent to a network resource pool, which is responsible for network data processing, analyzing that the various data discovery "192.168.10.34", "192.168.10.35", "192.168.10.36" three IP addresses have been used to make a connection impossible. The usage feedback information of "192.168.10.34", "192.168.10.35", "192.168.10.36" is returned.
304. Reading the occupied IP address table to obtain the number of occupied IP addresses, and judging whether the number exceeds a preset threshold value;
in this embodiment, the usage feedback information of "192.168.10.34", "192.168.10.35" and "192.168.10.36" is returned, and the total number of 5 IP addresses is that the network segment can be used, so that the preset threshold is 5, and the number of usage is 3, so that the number of usage does not reach the threshold, and resources can still be used.
305. If yes, the preset unavailable resource information is sent to the management terminal;
in this embodiment, the network segment information "192.168.10.32", "192.168.10.33", "192.168.10.34", "192.168.10.35", "192.168.10.36" is sent to the network resource pool, and when the return "192.168.10.32", "192.168.10.33", "192.168.10.34", "192.168.10.35", "192.168.10.36" are all used, the total number is 5 IP addresses and is also 5, so that the threshold is reached and the return is no available network resource.
306. If not, creating a network link in the target local area network according to the network component and the unoccupied IP address table;
In this embodiment, the total number is 5 thresholds, and 3 IP addresses returned are not connected, but "192.168.10.32", "192.168.10.33" can be used, so "192.168.10.32", "192.168.10.33" are extracted as free IP addresses.
307. Establishing a mapping relation between the network link and the source IP address through a built-in exchange module in the target local area network architecture;
308. and generating a network topology set between the source IP address and the local area network address based on the mapping relation.
In the embodiment of the invention, the scheme of exchanging data in the local area network is added, so that the exchange response time is reduced, and the scheme is more efficient, less manual operation and easier maintenance when the virtual machine is used for exchanging data as a whole than the traditional exchange network line exchange.
Referring to fig. 4, a fourth embodiment of a network topology creation method according to an embodiment of the present invention includes:
401. obtaining a network topology creation task, wherein the network topology creation task comprises: a source IP address, a target lan address;
402. reading network setting of the local area network address, and selecting a network component from a preset target local area network architecture according to the network setting;
403. Creating a network link in the target local area network according to the network component;
404. establishing a mapping relation between the network link and the source IP address through a built-in exchange module in the target local area network architecture;
405. reading server information corresponding to all IP addresses in the local area network address, and generating an initial network topology based on all the server information;
in this embodiment, it is assumed that there are five servers a, b, c, d, f, where the relationship between each other is that a can transmit data to b, c, d, f, b can transmit data to c, d, f, c can transmit data to d, f, d can transmit data to a, b, c, f, and f can only transmit data to d. The data transmission relation between the servers is the initial topology network analysis.
406. Detecting whether a newly added server exists in the local area network address;
in this embodiment, an initial network topology is obtained, and whether there is a newly added server in the entire topology is detected, and if there is a newly added e-server in the topology network of five servers a, b, c, d, f, the new e-server is detected. The initial topology network relationship data needs to be changed.
407. If yes, reading address information and access port information of the newly added server;
In this embodiment, if a newly added e-server is detected, the address of the e-server is read, if the address of the e-server is read as "42.123.77.121", and the access port is "port: 102, service: message Transfer Agent (MTA) -x.400over TCP/IP ", the information of this port is captured.
408. Adding the address information and the access port information into the initial network topology to obtain a corrected network topology;
in this embodiment, if an additional e-server is detected in the topology networks of the five servers a, b, c, d, f, a new topology network associated with a, b, c, d, f, e is formed, and the initial network topology is changed to the modified network topology.
409. And generating a network topology set between the source IP address and the local area network address based on the modified network topology.
In this embodiment, the connection relationship between the e-server and a, b, c, d, f is obtained according to the obtained address and access port information, and the updated topology relationship is that a can transmit data to b, c, d, f, b can transmit data to c, d and f, c can transmit data to d and f, d can transmit data to a, b, c, f, f can only transmit data to d, and e can transmit data to a, b, c, d, f after the connection relationship is obtained, so that a new relationship is generated. In another embodiment, the a, b, c, d, f server is reduced by one server a, so that the corresponding b can transmit data to c, d, f, c can transmit data to d, f, d can transmit data to a, b, c, f, and f can only transmit data to d, forming a new topology network.
In the embodiment of the invention, more accurate topology connection information is obtained by refreshing the server information in the local area network, and the scheme is more efficient and less manual operation and easier maintenance compared with the traditional exchange of the network cable line exchange of the switch by exchanging data through the virtual machine as a whole.
Referring to fig. 5, a fifth embodiment of a network topology creation method according to an embodiment of the present invention includes:
501. obtaining a network topology creation task, wherein the network topology creation task comprises: a source IP address, a target lan address;
502. reading network setting of the local area network address, and selecting a network component from a preset target local area network architecture according to the network setting;
503. creating a network link in the target local area network according to the network component;
504. establishing a mapping relation between the network link and the source IP address through a built-in exchange module in the target local area network architecture;
505. generating a network topology set between the source IP address and the local area network address based on the mapping relation;
506. calculating node communication cost of node connection corresponding to any two IP addresses in the mapping relation;
in this embodiment, the node communication cost is used for the energy loss proportion in the communication transmission process. There are three paths from node a to node d, forwarding through node b, c and arriving directly at d, if it is known that E (a) =20, E (b) =50, E (c) =20, d (a, b) = 5,d (a, c) =5, d (a, d) =10, d (b, d) = 9,d (c, d) = 6,k =0.01, the communication cost of a to b is 1.25/20=0.0625, the communication cost of b to d is 7.29/50=0.1458, and the communication cost of d to c is 2.16/20=0.108. The communication cost of each contact is calculated.
507. Analyzing each topological connection in the network topology set to obtain a node connection route corresponding to each topological connection;
in this embodiment, each of the topologically connected paths is analyzed to obtain the topologically connected routes of such paths as a-b-d, a-c-d.
508. Respectively calculating the corresponding transmission time of each node connecting route, and judging whether the transmission time exceeds a preset time threshold;
in this embodiment, the transmission time of a-b-d, a-c-d is also determined first when calculating the sum of the communication costs of the paths of a-b-d, a-c-d. For example, the time taken for transmission of 1GB data for the paths of a-b-d, a-c-d is 30 seconds, 80 seconds, 942 seconds, respectively. While the time threshold for transmitting 1GB data is 500 seconds, a path exceeding 500 seconds is considered to exceed the time threshold.
509. If yes, not calculating node communication cost sum corresponding to the transmission time, otherwise, calculating the node communication cost sum;
in the present embodiment, for example, the time taken for transmission of 1GB data for the paths of a-b-d, a-c-d is 30 seconds, 80 seconds, 942 seconds, respectively. While the time threshold for transmitting 1GB data is 500 seconds, a path exceeding 500 seconds is considered to exceed the time threshold. a-c-d is too long to be considered as a communication cost does not need to be calculated because the requirement of transmission time is not met.
510. Calculating the node communication cost sum corresponding to each node connection route to obtain the communication cost corresponding to all topological connections;
in this embodiment, the node calculation formula is C (a，b) E { d (a, b) }/E (a), wherein the communication energy consumption of the node a to transmit data to the node b is E { d (a, b) }, E { d (a, b) } =kd 3 And (a, b), E (a) is energy remained by the node a before data transmission, and the communication cost is obtained according to the energy change. Calculating the sum of communication costs of paths of a-b-d, a-d and a-c-d, wherein the communication cost of the topological connection of the a-b-d is:
E{d(a，b)}/E(a)+E{d(b，d)}/E(b)＝1.25/20+7.29/50＝0.2083
the communication cost of the topology connection of a-d is:
E{d(a，d)}/E(a)＝10/20＝0.5
the communication cost of the topology connection of a-c-d is:
E{d(a，c)}/E(a)+E{d(c，d)}/E(c)＝1.25/20+2.16/20＝0.1705
the sum of the communication costs of all paths of a-b-d, a-c-d is thus obtained.
511. Comparing the communication cost corresponding to all the topology connections to obtain the topology connection corresponding to the minimum communication cost, and taking the topology connection as the optimal connection;
in this embodiment, the topology connection between the free IP address and the outgoing IP address is "119.254.200.4" and "192.168.1.14" and has three connection modes, namely a-b-d, a-d and a-c-d, which form a topology connection in the topology connection set, and after obtaining the communication cost data of 0.2083, 0.5 and 0.1705, the communication cost of 0.1705 is confirmed to be minimum, so that the topology connection of the corresponding a-c-d is the best topology connection route selected by the virtual machine, and if the connection cannot be successful due to a fault, the topology connection of 0.2083 is automatically used as the best topology connection to perform the corresponding topology of a-b-d.
512. According to the optimal connection, a data transmission channel from the source IP address to the local area network address is established;
in this embodiment, the connection between the source IP address and the lan address, e.g. "119.254.200.4" and "192.168.1.14", is selected as the a-b-d connection, and then the operating program changes the topology connection to a communication channel as a way of data transmission.
513. Calculating the ratio of the data transmission quantity of the topological connection corresponding to the minimum communication cost to the data transmission quantity of the network topological set to obtain the transmission ratio;
in this embodiment, the total transmission amount of one second of the virtual machine is 10000GB, where the transmission amount of one second of the topology relationship formed by the data allocation request is 500GB, and the transmission ratio of the topology connection data transmission amount is 5%. If the data transmission amount in 1 second of the topology formed at this time is 1000GB, the data transmission amount accounts for 10% of the transmission ratio of the virtual machine.
514. Multiplying the transmission proportion by a preset maximum flow limit threshold to obtain a flow limit value;
in this embodiment, the maximum flow limit threshold is 2000M/s and the ratio is 10%, so that the two values are multiplied to obtain an adjusted flow limit value of 200M/s. The language implemented in the computing mode may be a series of programming languages such as Python, C, C ++, or basic visual. If the ratio becomes 20%, and the 20% is multiplied by 2000M/h to obtain 400M/s, the flow limit value is adjusted to 400M/s.
515. Judging whether the flow limit value is larger than a preset physical constraint value or not;
in this embodiment, the adjusted flow limit is 400M/s and the physically maximum achievable flow rate is 300M/s, then the maximum physical constraint is less than the adjusted flow limit. In another embodiment, the maximum physical constraint value is 2000M/s and the flow limit value is adjusted to 400M/s, and the flow limit value is adjusted to 400M/s.
516. If yes, taking the physical constraint value as a threshold value of flow restriction;
in this embodiment, the flow limit value is adjusted to 900M/s, and the maximum physical constraint value is adjusted to 700M/s, so that the flow limit value cannot be adjusted physically, and the maximum physical constraint value is taken as the flow limit threshold. If the transmission flow is more than 700M/s, the flow limit is given, so that the data transmission cannot be faster.
517. If not, the flow limit value is used as a flow limit threshold value.
In this embodiment, the flow limit value is adjusted to 900M/s, and the maximum physical constraint value is adjusted to 700M/s, so that the flow limit value cannot be adjusted physically, and the maximum physical constraint value is taken as the flow limit threshold. If the transmission flow is more than 700M/s, the flow limit is given, so that the data transmission cannot be faster.
In the embodiment of the invention, the transmission speed and the communication cost are considered in the transmission topology selection process, so that the topology selection is more accurate, and the scheme is more efficient and less manual operation and easier to maintain compared with the traditional exchange network line replacement.
The method for creating a network topology in the embodiment of the present invention is described above, and the apparatus for creating a network topology in the embodiment of the present invention is described below, referring to fig. 6, where an embodiment of the apparatus for creating a network topology in the embodiment of the present invention includes:
an obtaining module 601, configured to obtain a network topology creation task, where the network topology creation task includes: a source IP address, a target lan address;
a selection module 602, configured to read a network setting of the lan address, and select a network component from a preset target lan architecture according to the network setting;
a creation module 603 configured to create a network link in the target lan according to the network component;
a switching module 604, configured to establish a mapping relationship between the network link and the source IP address through a switching module built in the target lan architecture;
the topology module 605 is configured to generate a network topology set between the source IP address and the local area network address based on the mapping relationship.
In the embodiment of the invention, the equivalent function of the switch plus router is obtained by using the data content in the virtual machine distribution network, the data distribution topology of the data network can be changed in an efficient and visual way, and the optimal data topology route is selected by the virtual machine through the communication cost calculation, the transmission time limitation and the flow limitation of the data topology, so that the method is more efficient and less in manual operation and easier to maintain than the traditional switch network line route replacement.
Referring to fig. 7, another embodiment of the network topology creation apparatus according to the embodiment of the present invention includes:
an obtaining module 701, configured to obtain a network topology creation task, where the network topology creation task includes: a source IP address, a target lan address;
a selection module 702, configured to read a network setting of the lan address, and select a network component from a preset target lan architecture according to the network setting;
a creation module 703, configured to create a network link in the target lan according to the network component;
a switching module 704, configured to establish a mapping relationship between the network link and the source IP address through a switching module built in the target lan architecture;
The topology module 705 is configured to generate a network topology set between the source IP address and the local area network address based on the mapping relationship.
The network topology creating apparatus further includes a judging module 706, where the judging module 706 is specifically configured to:
judging whether the source IP address and the local area network address are preset effective IP addresses or not, wherein the effective IP addresses are used for carrying out network link;
if yes, establishing transmission connection with the source IP address;
if not, the preset error reporting information is sent to a preset management terminal and the network topology creation task is acquired again, wherein the management terminal is used for displaying the network topology creation state.
Wherein, the creation module 703 is specifically configured to:
the local area network address is sent to a preset network resource pool to obtain an IP address state table, wherein the network resource pool is used for storing all the effective IP addresses, and the IP address state table comprises: an occupied IP address table in the local area network address and an unoccupied IP address table in the local area network address;
reading the occupied IP address table to obtain the number of occupied IP addresses, and judging whether the number exceeds a preset threshold value;
If yes, the preset unavailable resource information is sent to the management terminal;
if not, a network link is created in the target local area network according to the network component and the unoccupied IP address table.
Wherein, the topology module 705 is specifically configured to:
reading server information corresponding to all IP addresses in the local area network address, and generating an initial network topology based on all the server information;
detecting whether a newly added server exists in the local area network address;
if yes, reading address information and access port information of the newly added server;
adding the address information and the access port information into the initial network topology to obtain a corrected network topology;
and generating a network topology set between the source IP address and the local area network address based on the modified network topology.
The network topology creation device further includes a connection module 708, where the connection module 708 is specifically configured to:
calculating node communication cost of node connection corresponding to any two IP addresses in the mapping relation;
analyzing each topological connection in the network topology set to obtain a node connection route corresponding to each topological connection;
Calculating the node communication cost sum corresponding to each node connection route to obtain the communication cost corresponding to all topological connections;
comparing the communication cost corresponding to all the topological connections to obtain the topological connection corresponding to the minimum communication cost, and taking the topological connection as the optimal connection, wherein the optimal connection is a preferred connection mode for transmitting information;
and establishing a data transmission channel from the source IP address to the local area network address according to the optimal connection.
The network topology creating apparatus further includes a duration module 707, where the duration module 707 is specifically configured to:
respectively calculating the corresponding transmission time of each node connecting route, and judging whether the transmission time exceeds a preset time threshold;
if yes, not calculating the node communication cost sum corresponding to the transmission time, otherwise, calculating the node communication cost sum.
The network topology creation device further includes a traffic module 709, where the traffic module 709 is specifically configured to:
calculating the ratio of the data transmission quantity of the topological connection corresponding to the minimum communication cost to the data transmission quantity of the network topological set to obtain the transmission ratio;
Multiplying the transmission proportion by a preset maximum flow limit threshold to obtain a flow limit value;
judging whether the flow limit value is larger than a preset physical constraint value, wherein the physical constraint is used for obtaining an average value based on the physical transmission speed limit of each topological connection;
if yes, taking the physical constraint value as a threshold value of flow restriction;
if not, the flow limit value is used as a flow limit threshold value.
In the embodiment of the invention, the equivalent function of the switch plus router is obtained by using the data content in the virtual machine distribution network, the data distribution topology of the data network can be changed in an efficient and visual way, and the optimal data topology route is selected by the virtual machine through the communication cost calculation, the transmission time limitation and the flow limitation of the data topology, so that the method is more efficient and less in manual operation and easier to maintain than the traditional switch network line route replacement.
The network topology creation apparatus in the embodiment of the present invention is described in detail above in fig. 6 and 7 from the point of view of modularized functional entities, and the network topology creation device in the embodiment of the present invention is described in detail below from the point of view of hardware processing.
Fig. 8 is a schematic diagram of a network topology creating device according to an embodiment of the present invention, where the network topology creating device 800 may have a relatively large difference due to different configurations or performances, and may include one or more processors (central processing units, CPU) 810 (e.g., one or more processors) and a memory 820, and one or more storage media 830 (e.g., one or more mass storage devices) storing application programs 833 or data 832. Wherein memory 820 and storage medium 830 can be transitory or persistent. The program stored on the storage medium 830 may include one or more modules (not shown), each of which may include a series of instruction operations in the network topology creation device 800. Still further, the processor 810 may be arranged to communicate with the storage medium 830 and to execute a series of instruction operations in the storage medium 830 on the network topology creation device 800.
The network topology based creation device 800 can also include one or more power supplies 840, one or more wired or wireless network interfaces 850, one or more input/output interfaces 860, and/or one or more operating systems 831, such as Windows Serve, mac OS X, unix, linux, freeBSD, and the like. It will be appreciated by those skilled in the art that the network topology creation device structure shown in fig. 8 does not constitute a limitation of the network topology creation device-based, and may include more or fewer components than shown, or may combine certain components, or may be a different arrangement of components.
The present invention also provides a computer readable storage medium, which may be a non-volatile computer readable storage medium, and may also be a volatile computer readable storage medium, where instructions are stored, which when executed on a computer, cause the computer to perform the steps of the network topology creation method.
It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, which are not repeated herein.
The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied essentially or in part or all of the technical solution or in part in the form of a software product stored in a storage medium, including instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a read-only memory (ROM), a random access memory (random access memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
The above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (9)
1. A network topology creation method, characterized in that the network topology creation method comprises:
obtaining a network topology creation task, wherein the network topology creation task comprises the following steps: a source IP address, a target lan address;
reading network setting of the local area network address, and selecting a network component from a preset target local area network architecture according to the network setting;
creating a network link in the target local area network according to the network component;
establishing a mapping relation between the network link and the source IP address through a built-in exchange module in the target local area network architecture;
generating a network topology set between the source IP address and the local area network address based on the mapping relation;
Calculating node communication cost of node connection corresponding to any two IP addresses in the mapping relation;
analyzing each topological connection in the network topology set to obtain a node connection route corresponding to each topological connection;
calculating the node communication cost sum corresponding to each node connection route to obtain the communication cost corresponding to all topological connections;
comparing the communication cost corresponding to all the topological connections to obtain the topological connection corresponding to the minimum communication cost, and taking the topological connection as the optimal connection, wherein the optimal connection is a preferred connection mode for transmitting information;
and establishing a data transmission channel from the source IP address to the local area network address according to the optimal connection.
2. The network topology creation method of claim 1, further comprising, after said acquiring a network topology creation task:
judging whether the source IP address and the local area network address are preset effective IP addresses or not, wherein the effective IP addresses are used for carrying out network link;
if yes, establishing transmission connection with the source IP address;
if not, the preset error reporting information is sent to a preset management terminal and the network topology creation task is acquired again, wherein the management terminal is used for displaying the network topology creation state.
3. The network topology creation method of claim 2, wherein said creating a network link in said target local area network from said network component comprises:
the local area network address is sent to a preset network resource pool to obtain an IP address state table, wherein the network resource pool is used for storing all the effective IP addresses, and the IP address state table comprises: an occupied IP address table in the local area network address and an unoccupied IP address table in the local area network address;
reading the occupied IP address table to obtain the number of occupied IP addresses, and judging whether the number exceeds a preset threshold value;
if yes, the preset unavailable resource information is sent to the management terminal;
if not, a network link is created in the target local area network according to the network component and the unoccupied IP address table.
4. The network topology creation method of claim 1, further comprising, before said calculating a node communication cost sum corresponding to each of said node connection routes to obtain communication costs corresponding to all topology connections:
respectively calculating the corresponding transmission time of each node connecting route, and judging whether the transmission time exceeds a preset time threshold;
If yes, not calculating the node communication cost sum corresponding to the transmission time, otherwise, calculating the node communication cost sum.
5. The network topology creation method according to claim 1, wherein after comparing the sizes of the communication costs corresponding to all the topology connections to obtain the topology connection corresponding to the smallest communication cost, the method further comprises:
calculating the ratio of the data transmission quantity of the topological connection corresponding to the minimum communication cost to the data transmission quantity of the network topological set to obtain the transmission ratio;
multiplying the transmission proportion by a preset maximum flow limit threshold to obtain a flow limit value;
judging whether the flow limit value is larger than a preset physical constraint value, wherein the physical constraint is used for obtaining an average value based on the physical transmission speed limit of each topological connection;
if yes, taking the physical constraint value as a threshold value of flow restriction;
if not, the flow limit value is used as a flow limit threshold value.
6. The network topology creation method of any of claims 1-5, wherein said generating a set of network topologies between the source IP address and the local area network address based on the mapping relationship comprises:
Reading server information corresponding to all IP addresses in the local area network address, and generating an initial network topology based on all the server information;
detecting whether a newly added server exists in the local area network address;
if yes, reading address information and access port information of the newly added server;
adding the address information and the access port information into the initial network topology to obtain a corrected network topology;
and generating a network topology set between the source IP address and the local area network address based on the modified network topology.
7. A network topology creation apparatus, characterized in that the network topology creation apparatus comprises:
the acquisition module is used for acquiring a network topology creation task, and the network topology creation task comprises the following steps: a source IP address, a target lan address;
the selection module is used for reading the network setting of the local area network address and selecting a network component from a preset target local area network architecture according to the network setting;
a creation module for creating a network link in the target local area network according to the network component;
the switching module is used for establishing a mapping relation between the network link and the source IP address through the switching module built in the target local area network architecture;
The topology module is used for generating a network topology set between the source IP address and the local area network address based on the mapping relation;
the connection module is specifically used for:
calculating node communication cost of node connection corresponding to any two IP addresses in the mapping relation;
analyzing each topological connection in the network topology set to obtain a node connection route corresponding to each topological connection;
calculating the node communication cost sum corresponding to each node connection route to obtain the communication cost corresponding to all topological connections;
comparing the communication cost corresponding to all the topological connections to obtain the topological connection corresponding to the minimum communication cost, and taking the topological connection as the optimal connection, wherein the optimal connection is a preferred connection mode for transmitting information;
and establishing a data transmission channel from the source IP address to the local area network address according to the optimal connection.
8. A network topology creation device, characterized in that the network topology creation device comprises: a memory and at least one processor, the memory having instructions stored therein, the memory and the at least one processor being interconnected by a line;
the at least one processor invokes the instructions in the memory to cause the network topology creation device to perform the network topology creation method of any of claims 1-6.
9. A computer readable storage medium having stored thereon a computer program, which when executed by a processor implements the network topology creation method of any of claims 1-6.
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