CN107682191B - Power dispatching network information centralized management and control method and system - Google Patents
Power dispatching network information centralized management and control method and system Download PDFInfo
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Abstract
The invention relates to a method and a system for centralized management and control of power dispatching network information, which are used for collecting power system equipment information and forming a whole network topological relation; establishing a mapping relation between a physical link and a logic service based on the full-network topological relation; and managing and controlling the power dispatching network information based on the logical service network bandwidth state in the mapping relation. The technical scheme provided by the invention realizes the centralized management and control of the logical service passing through the physical link, and improves the management and control efficiency.
Description
Technical Field
The invention relates to a management and control method in the field of power system automation, in particular to a power dispatching network information centralized management and control method and system.
Background
With the rapid development of an extra-high voltage alternating current-direct current interconnected power grid and the development and construction of a dispatching data network, the large-range resource optimization configuration capacity of the power grid is greatly improved, the power grid faces the challenges of insufficient integrated monitoring level, insufficient centralized global decision making capacity, insufficient large-range resource optimization configuration capacity of a dispatching plan, insufficient new energy consumption capacity and the like, the corresponding requirements on the information sharing degree of each stage of dispatching system are higher, and accurate integrated analysis and control in a wide-range are required to be realized.
The method comprises the steps of establishing a real-time data processing overall mechanism of wide area storage, distributed processing, global sharing and unified access, constructing a whole-network integrated application analysis decision center on the basis of the overall mechanism to achieve accuracy of analysis results, wherein basic data required by the decision center are from all levels of scheduling centers and need to be accessed across the scheduling data networks, the flow of the scheduling data networks is much larger than that of the prior art, except that in addition, results analyzed by advanced applications such as AGC (automatic gain control) of the integrated analysis decision center and the like need to be issued to all levels of scheduling centers, finally, the output of a generator of a corresponding power plant is regulated and controlled, delay cannot be caused during control information transmission, and otherwise, the regulation effect and the power grid operation state are influenced. In addition, the design of a future scheduling system provides a broadband interconnection thinking service-oriented substation networking access technology to realize the integrated operation of the master station and the slave station, but the reliability of the network needs to be guaranteed.
According to a 'regulation and control integration' construction mode, interaction and application of monitoring information are realized by adopting a new construction or upgrading through a dispatching support system, and because the access of a large amount of equipment monitoring information puts new requirements on the construction of the dispatching support system, the service requirement is combed, and the access mode of substation monitoring data is clear becomes an urgent task. In order to solve the management problem caused by access of a large amount of data, the functions of alarm direct transmission and remote graphic browsing are provided on the basis of the information optimization of the original telecontrol system.
In summary, with the increase of the service types, the congestion of a certain node or part of links in the scheduling communication IP network caused by the burst of the network traffic is inevitable, and once the information congestion occurs, the normal operation of the scheduling data service is likely to be affected, and the production management and the safe operation of the power system are damaged. The prior art cannot perform centralized management and control on logical services passing through a physical link.
Disclosure of Invention
In order to solve the defects in the prior art, the invention aims to provide a method and a system for centralized management and control of power dispatching network information, which overcome the defect that the centralized management and control of logical services passing through a physical link cannot be performed.
The purpose of the invention is realized by adopting the following technical scheme:
the invention provides a centralized management and control method for power dispatching network information, which is improved in that:
collecting equipment information of the power system to form a full-network topological relation;
establishing a mapping relation between a physical link and a logic service based on the full-network topological relation;
and managing and controlling the power dispatching network information based on the logical service network bandwidth state in the mapping relation.
Further: collecting relevant equipment information of the power system to form a full-network topological relation, comprising the following steps:
collecting the equipment information of the power system to generate network data; the network data includes: switch information, physical link information and power dispatching system host information;
and acquiring the connection relation between the switches, the physical links and the power dispatching system host in the jurisdiction range according to the physical link state protocol to form a full-network topological relation.
Further: establishing a mapping relation between a physical link and a logic service based on the full-network topological relation, wherein the mapping relation comprises the following steps:
counting flow table entry statistical information in the whole network topology relationship through a network switching protocol, wherein the flow table entry statistical information comprises flow table duration and flow table sending byte number;
calculating the bandwidth of the physical link according to the duration of the flow table and the number of bytes sent by the flow table;
calculating the bandwidth of the logic service network according to the duration of the flow table and the number of bytes matched with the flow table;
determining the mapping relation between the physical link and the logic service according to the bandwidth of the physical link and the bandwidth of the logic service network; the mapping relation is network bandwidth occupied by the logical service on the physical link.
Further: the calculating the bandwidth of the physical link according to the duration time of the flow table and the number of bytes sent by the flow table comprises the following steps:
sending down a request for statistical information of flow entries of switch ports to the switch, obtaining the statistical information of the flow entries of the switch ports,
acquiring the number of bytes sent by a flow table of a switch port and the duration of the flow table according to the flow table entry statistical information;
and calculating the bandwidth of the physical link according to the number of bytes sent by the flow table of the switch port and the duration of the flow table.
Further: the expression of the physical link bandwidth is as follows:
physical link bandwidth (tbyten-tbyte (n-1))/(tn-t (n-1))
In the formula: t (n-1) is the time for acquiring the number tbyte (n-1) of sent bytes at the n-1 th time, and tn is the time for acquiring the number tbyten of sent bytes at the n th time; tbyte (n-1) is the n-1 th acquisition of the number of bytes sent; tbyten is the nth acquisition sending byte number.
Further: the expression of the service network bandwidth is as follows:
service network bandwidth ═ (tbyten '-tbyte (n-1)')/(tn '-t (n-1)')
In the formula: t (n-1) 'is the time for acquiring the number tbyte (n-1)' of matched bytes of the flow table at the n-1 th time, and tn 'is the time for acquiring the number tbyten' of matched bytes of the flow table at the n-1 th time; tbyte (n-1)' is the number of bytes matched with the flow table obtained in the (n-1) th time; tbyten' is the number of bytes matched for the flow table acquired the nth time.
Further: and in the calculation time window, when the calculated physical link bandwidth or the service network bandwidth is 0, taking the physical link bandwidth or the service network bandwidth value of the last calculation time window as the physical link bandwidth or the service network bandwidth value of the time.
Further: before the power dispatching network information is controlled based on the logic service network bandwidth state in the mapping relation, the method also comprises the step of displaying the power dispatching network information based on the mapping relation, and the method comprises the following steps:
displaying the full-network topological relation of the mapping relation between the physical link and the logic service in a graph form;
the graphic form comprises: displaying physical links in different colors in a full-network topological relation through which a service flow passes;
the physical links identified in different colors include: classifying the network bandwidth state based on the bandwidth occupied by the logic service in the physical link, and setting different colors according to the network bandwidth state.
Further: the graphic form also includes:
when a physical link in the whole network topological relation is selected, displaying a source destination IP address, a source destination port address and a current period occupied bandwidth of a logical service on the physical link through TIP prompt information;
when the physical link in the topology relation of the whole network is not selected, the TIP prompt message disappears.
Further: the classifying the network bandwidth state includes:
and dividing the network bandwidth state into a normal state, an early warning state and a serious state according to the physical link bandwidth occupation ratio.
Further: the physical link bandwidth occupation ratio calculation mode is as follows:
occupancy ratio is physical link actual bandwidth occupancy 100/physical link maximum bandwidth%.
Further: the controlling the power dispatching network information based on the logical service network bandwidth state in the mapping relation comprises:
and according to the mapping relation between the physical link and the logic service, when the network bandwidth state of the logic service reaches an early warning or serious state, adopting a preset quality of service (Qos) strategy to recover the network bandwidth occupation to a normal level.
The invention provides an information centralized management and control system of a power dispatching network, which is improved in that: the method comprises the following steps:
the forming module is used for collecting equipment information of the power system and forming a full-network topological relation;
the establishing module is used for establishing a mapping relation between a physical link and a logic service based on the whole network topological relation;
and the management and control module is used for managing and controlling the power dispatching network information based on the logical service network bandwidth state in the mapping relation.
Further: the forming module includes:
the acquisition unit is used for acquiring the equipment information of the power system to generate network data; the network data includes: switch information, physical link information and power dispatching system host information;
and the topology forming unit is used for obtaining the connection relationship between the switches, the physical links and the power scheduling system host in the jurisdiction range according to the physical link state protocol to form a full-network topology relationship.
Further: the establishing module comprises:
the system comprises a counting unit, a judging unit and a judging unit, wherein the counting unit is used for counting flow table entry statistical information in the whole network topological relation through a network switching protocol, and the flow table entry statistical information comprises flow table duration and flow table sending byte number;
the first calculation unit is used for calculating the bandwidth of the physical link according to the duration time of the flow table and the number of bytes sent by the flow table;
the second calculation unit is used for calculating the service network bandwidth according to the duration time of the flow table and the number of bytes matched with the flow table;
the determining unit is used for determining the mapping relation between the physical link and the logic service according to the bandwidth of the physical link and the bandwidth of the logic service network; the mapping relation is network bandwidth occupied by the logical service on the physical link.
Further: the first calculation unit includes:
the issuing subunit is used for issuing a switch port flow table entry statistical information request to the switch and acquiring flow table entry statistical information of the switch port;
the acquiring subunit is used for acquiring the number of bytes sent by the flow table of the switch port and the duration of the flow table according to the flow table entry statistical information;
and the first calculation subunit is used for calculating the bandwidth of the physical link according to the number of bytes sent by the flow table of the switch port and the duration of the flow table.
Further: the display module is used for displaying the full-network topological relation establishing the mapping relation between the physical link and the logical service in a graph form before the bandwidth state of the logical service network in the mapping relation is used for controlling the power dispatching network information;
the graphic form comprises: the physical links are displayed in different colors in the full-network topological relation through which the traffic flows pass.
Further: the display module comprises:
the classification unit is used for classifying the network bandwidth state based on the physical link bandwidth occupied by the service flow in the physical link before the electric power dispatching network information is controlled based on the logical service network bandwidth state in the mapping relation;
the setting unit is used for setting different colors according to the classified network bandwidth states;
and the display unit is used for displaying the physical links in different colors in the full-network topological relation passed by the traffic flow.
Further: the classification unit is also used for classifying the network bandwidth state into a normal state, an early warning state and a serious state according to the physical link bandwidth occupation ratio; and the management and control module is used for adopting a preset quality of service (Qos) strategy to restore the network bandwidth occupation to a normal level when the network bandwidth state of the logic service reaches an early warning or serious state according to the mapping relation between the physical link and the logic service.
Compared with the closest prior art, the technical scheme provided by the invention has the beneficial effects that:
firstly, collecting equipment information of a power system to form a full-network topological relation; establishing a mapping relation between a physical link and a logic service based on the full-network topological relation; the logical service network bandwidth state based on the mapping relation manages and controls the power dispatching network information, so that the logical service passing through the physical link is managed and controlled in a centralized manner, and the management and control efficiency is improved.
Drawings
Fig. 1 is a flowchart of a power dispatching network information centralized management and control method provided by the invention;
FIG. 2 is a flow chart of network data generation provided by the present invention;
FIG. 3 is a flow chart of client network topology generation provided by the present invention;
fig. 4 is a diagram of an example of centralized management and control of scheduling network information based on SDN provided in the present invention.
Detailed Description
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
The following description and the drawings sufficiently illustrate specific embodiments of the invention to enable those skilled in the art to practice them. Other embodiments may incorporate structural, logical, electrical, process, and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The scope of embodiments of the invention encompasses the full ambit of the claims, as well as all available equivalents of the claims. Embodiments of the invention may be referred to herein, individually or collectively, by the term "invention" merely for convenience and without intending to voluntarily limit the scope of this application to any single invention or inventive concept if more than one is in fact disclosed.
The first embodiment,
The invention provides a set of power dispatching network information centralized management and control method under an SDN network architecture, which comprises the following steps:
networking by adopting an SDN technology (networking is carried out based on an SDN framework technology, a network port of a controller and a management channel of a switch are connected on a control plane, and communication is carried out between the network port of the controller and the management channel of the switch through an openflow protocol), network equipment and physical link relations in the jurisdiction range are obtained, the whole network topological relation is formed, and automatic topological layout is realized on an interface; establishing a mapping relation between a physical link and a logical service, and establishing a bandwidth calculation and anti-shaking mechanism to realize the function of checking all service information on the physical link through the physical link and also check a path passed by the service; classifying the bandwidth states of the physical links, and designing a corresponding state coloring mechanism to enable a dispatcher to find the bandwidth states in time and perform the next processing; the method can appoint a service flow to transmit according to a certain path and carry out manual intervention; in the aspects of data storage and access, a high-performance memory database is adopted to store the network real-time section, and network data access service is provided based on SOA service.
The flow chart is shown in fig. 1, and the method comprises the following steps:
acquiring the relationship among network equipment, a host and a physical link in a jurisdiction range, forming a whole network topological relationship, and automatically arranging on a software interface; the method comprises the following steps:
(1) generating network data and storing the network data into a shared memory;
step 1: the network topology service program acquires the switch information, the physical link information and the host information from the controller based on the SDN technology, and opens up a space in the shared memory to store the switch information, the switch port information, the physical link information and the host information.
The network topology relationship graph can be formed by networking by adopting an SDN technology, network equipment and physical link relationships in a jurisdiction range are obtained, the whole network topology is formed, manual layout is not needed on an interface, and the network topology is generated through automatic layout according to the link relationships.
Step 2: the physical link network bandwidth is calculated.
The system acquires port and flow entry statistical information through the statistical message of the OpenFlow protocol, analyzes the returned statistical information, and calculates the link bandwidth information according to the data carried by the statistical information. Links in a network are bi-directional and are divided into uplink and downlink. The used bandwidth of the uplink and the downlink is determined by the transmission rate of the corresponding transmission port. Each switch port maintains a count table that includes forwarding data statistics.
The controller can obtain the count table information of the Port by issuing a Port statistics information request to the switch, and can find the number of packets, the number of bytes and the duration of the statistics which can be obtained by the Port from the message format. And subtracting the number of transmitted bytes acquired at two different times, and dividing the subtracted value by the statistical time difference of the two messages to obtain the link bandwidth.
In order to eliminate the jitter phenomenon caused by the fact that the bandwidth calculated in the calculation time window is 0, when the calculation bandwidth is 0, the bandwidth value of the previous calculation window is taken as the current bandwidth value. And storing the finally calculated network bandwidth of the physical link into a shared memory. The expression for the physical link network bandwidth is as follows:
physical link bandwidth (tbyte2-tbyte1)/(t2-t1)
In the formula: t1 is the time for acquiring the sent byte number tbyte1 at the 1 st time, and t2 is the time for acquiring the sent byte number tbyte2 at the 2 nd time; tbyte1 is the 1 st acquisition sent byte number; tbyte2 is the number of bytes sent for the 2 nd fetch.
And step 3: and calculating the bandwidth of the service network.
The traffic network bandwidth can be calculated by the flow table entry matching rate. The controller can obtain the statistical information of the switch port by periodically sending Flow statistics information, can obtain the Flow table duration and the Flow table receiving byte number from the returned statistical information, measures the numerical values of three variables when calling the monitoring function for the first time by setting a polling interval, and can subtract the data monitored for the two times when calling the monitoring function for the second time to calculate the byte number matched with the Flow table in delta t, thereby obtaining the Flow rate, namely the service network bandwidth.
In order to eliminate the jitter phenomenon caused by the fact that the bandwidth calculated in the calculation time window is 0, when the calculation bandwidth is 0, the bandwidth value of the previous calculation window is taken as the current bandwidth value.
And storing the finally calculated service bandwidth into a shared memory. The expression of the service network bandwidth is as follows:
service network bandwidth (tbyte2-tbyte1)/(t2-t1)
In the formula: t1 is the time for obtaining the matching byte number tbyte1 of the flow table at the 1 st time, and t2 is the time for obtaining the matching byte number tbyte2 of the flow table at the 2 nd time; tbyte1 is the number of bytes matching the flow table obtained at the 1 st time; tbyte2 is the number of bytes matching the flow table obtained at the 2 nd time. A network data generation flow diagram is shown in fig. 2.
(2) Transmitting the network data to the client, comprising:
and 4, step 4: and starting the SOA-based network topology service which is a request/response synchronization mode and can provide access service for the client, wherein the access service comprises a switch, link information, host information and the like.
And 5: the client acquires the switch, the link information and the host information, forms a full-network topology according to the information of the switch, the link information and the host information, and automatically arranges on an interface according to the relationship between attraction and repulsion, wherein the automatic arrangement according to the relationship between attraction and repulsion refers to that: the host and the network device can be used as nodes, and the physical connection between the host and the network device can be used as a link, so that the attraction and the repulsion can be formed, and automatic layout can be realized. A client network topology generation flow diagram is shown in fig. 3.
Establishing a mapping relation between a physical link and a logic service;
the invention classifies the physical link bandwidth state and designs a corresponding state coloring mechanism, so that a dispatcher can timely find and carry out the next processing. Network data such as network bandwidth in the method can further combine with Qos guarantee measures to form an automatic closed-loop control mode, and when the bandwidth occupancy rate of a physical link is high and reaches an early warning or serious state, a Qos strategy is adopted to recover the network bandwidth occupancy to a normal level under the condition. In the aspects of data storage and access, a high-performance memory database is adopted to store the network real-time section, and the network data (including network topology data and network real-time data) access service is provided based on SOA service.
The method comprises the steps of automatically acquiring all physical link information, defining all logic services (a starting IP address and an ending IP address) in advance, and analyzing a specific physical link which passes through mainly according to real-time flow table data (the starting IP address is matched through a flow table) on the network equipment.
Through the relations, a physical link path through which a logical service passes or a service carried on a physical link is analyzed.
Thirdly, checking all the services and the paths passed by the services on the physical link through the physical link, including:
step 6: when moving to a link in the network topology on the picture, displaying the total occupied bandwidth of the physical link service flow, the source and destination IP address, the source and destination port address and the current period (the period can be set, for example, 5 seconds) occupied bandwidth of each service flow in a text or graphical TIP prompting mode, sequencing each service flow according to the occupied bandwidth, and displaying only the service flow information of the first few ranked (the number of services can be set and displayed). When the network topology link is not selected, the TIP prompt disappears (the prompt information means that a prompt box pops up when the mouse moves to a certain link on the interface, and the prompt box disappears when the mouse moves away from the link).
And 7: and opening a service flow panel (on a client interface, the service flow panel refers to a panel on the interface), wherein the service flow panel lists all service flow information, selects a certain service flow, and can view all paths of the network passed by the service flow in a linkage manner on a picture.
And 8: the client acquires bandwidth data of a link in a network from a network data service at regular time, divides the network bandwidth state into a normal state, an early warning state and a serious state, each state corresponds to different bandwidth occupation ranges and coloring strategies, and colors the link according to the coloring strategies (the low threshold is cool tone, and the high threshold is warm tone).
The invention classifies the physical link bandwidth state and designs a corresponding state coloring mechanism, so that a dispatcher can timely find and carry out the next processing.
The three states of normal, early warning and serious in the step 8 can correspond to the occupation range of 3 bandwidths, and the occupation range can be configured according to actual conditions. The calculation method of the occupancy ratio is as follows: occupancy ratio is physical link actual bandwidth occupancy 100/physical link maximum bandwidth%. For example, the occupancy ratio is normally 0% or less and less than 50%, which corresponds to green, the occupancy ratio is early-warning 50% or more and less than 80%, which corresponds to yellow, and the occupancy ratio is seriously 80% or more and less than 100%, which corresponds to red. An example of the SDN-based scheduling network information presentation and centralized management and control is shown in fig. 4.
In the aspects of data storage and access, the invention can adopt a high-performance memory database to store the network real-time section and provide the network data (including network topology data, network real-time data and the like) access service based on SOA service.
And step 9: the client can set a certain service to be transmitted according to a specified path for manual intervention, and the path searched by the service automatically is possibly not the optimal path, for example, the network delay searched by the service automatically is larger, so the setting can be performed through the manual intervention, and the relatively optimal or optimal effect is achieved.
Network data such as network bandwidth in the method can further combine with Qos guarantee measures to form an automatic closed-loop control mode, and when the bandwidth occupancy rate of a physical link is high and reaches an early warning or serious state, a Qos strategy is adopted to recover the network bandwidth occupancy to a normal level under the condition.
Example II,
Based on the same inventive concept, the invention also provides an information centralized management and control system of the power dispatching network, which comprises:
the forming module is used for collecting equipment information of the power system and forming a full-network topological relation;
the establishing module is used for establishing a mapping relation between a physical link and a logic service based on the whole network topological relation;
and the management and control module is used for managing and controlling the power dispatching network information based on the logical service network bandwidth state in the mapping relation.
Further: the forming module includes:
the acquisition unit is used for acquiring the equipment information of the power system to generate network data; the network data includes: switch information, physical link information and power dispatching system host information;
and the topology forming unit is used for obtaining the connection relationship between the switches, the physical links and the power scheduling system host in the jurisdiction range according to the physical link state protocol to form a full-network topology relationship.
Further: the establishing module comprises:
the system comprises a counting unit, a judging unit and a judging unit, wherein the counting unit is used for counting flow table entry statistical information in the whole network topological relation through a network switching protocol, and the flow table entry statistical information comprises flow table duration and flow table sending byte number;
the first calculation unit is used for calculating the bandwidth of the physical link according to the duration time of the flow table and the number of bytes sent by the flow table;
the second calculation unit is used for calculating the service network bandwidth according to the duration time of the flow table and the number of bytes matched with the flow table;
the determining unit is used for determining the mapping relation between the physical link and the logic service according to the bandwidth of the physical link and the bandwidth of the logic service network; the mapping relation is network bandwidth occupied by the logical service on the physical link.
Further: the first calculation unit includes:
the issuing subunit is used for issuing a switch port flow table entry statistical information request to the switch and acquiring flow table entry statistical information of the switch port;
the acquiring subunit is used for acquiring the number of bytes sent by the flow table of the switch port and the duration of the flow table according to the flow table entry statistical information;
and the first calculation subunit is used for calculating the bandwidth of the physical link according to the number of bytes sent by the flow table of the switch port and the duration of the flow table.
Further: the display module is used for displaying the full-network topological relation establishing the mapping relation between the physical link and the logical service in a graph form before the bandwidth state of the logical service network in the mapping relation is used for controlling the power dispatching network information;
the graphic form comprises: the physical links are displayed in different colors in the full-network topological relation through which the traffic flows pass.
Further: the display module comprises:
the classification unit is used for classifying the network bandwidth state based on the physical link bandwidth occupied by the service flow in the physical link before the electric power dispatching network information is controlled based on the logical service network bandwidth state in the mapping relation;
the setting unit is used for setting different colors according to the classified network bandwidth states;
and the display unit is used for displaying the physical links in different colors in the full-network topological relation passed by the traffic flow.
Further: the classification unit is also used for classifying the network bandwidth state into a normal state, an early warning state and a serious state according to the physical link bandwidth occupation ratio; and the management and control module is used for adopting a preset quality of service (Qos) strategy to restore the network bandwidth occupation to a normal level when the network bandwidth state of the logic service reaches an early warning or serious state according to the mapping relation between the physical link and the logic service.
The invention collects the equipment information of the power system by establishing a set of power dispatching network information centralized management and control method to form a whole network topological relation; establishing a mapping relation between a physical link and a logic service based on the full-network topological relation; managing and controlling power dispatching network information based on the logical service network bandwidth state in the mapping relation, wherein when a whole network topological relation graph is formed, networking is performed by adopting an SDN technology, network equipment in a jurisdiction range and a physical link relation are obtained, the whole network topology is formed, manual layout is not needed on an interface, and the network topology is generated through automatic layout according to the link relation; and establishing a mapping relation between the physical link and the logical service, realizing the function of checking all services on the physical link through the physical link, and also checking a path passed by the service.
The invention classifies the physical link bandwidth state and designs a corresponding state coloring mechanism, so that a dispatcher can timely find and carry out the next processing. Network data such as network bandwidth in the method can further combine with Qos guarantee measures to form an automatic closed-loop control mode, and when the bandwidth occupancy rate of a physical link is high and reaches an early warning or serious state, a Qos strategy is adopted to recover the network bandwidth occupancy to a normal level under the condition. In the aspects of data storage and access, a high-performance memory database is adopted to store the network real-time section, and the network data (including network topology data and network real-time data) access service is provided based on SOA service.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art can make modifications and equivalents to the embodiments of the present invention without departing from the spirit and scope of the present invention, which is set forth in the claims of the present application.
Claims (12)
1. A centralized management and control method for power dispatching network information is characterized in that:
collecting equipment information of the power system to form a full-network topological relation;
establishing a mapping relation between a physical link and a logic service based on the full-network topological relation;
managing and controlling power dispatching network information based on the logical service network bandwidth state in the mapping relation;
establishing a mapping relation between a physical link and a logic service based on the full-network topological relation, wherein the mapping relation comprises the following steps: counting flow table entry statistical information in the whole network topology relationship through a network switching protocol, wherein the flow table entry statistical information comprises flow table duration and flow table sending byte number;
calculating the bandwidth of the physical link according to the duration of the flow table and the number of bytes sent by the flow table;
calculating the bandwidth of the logic service network according to the duration of the flow table and the number of bytes matched with the flow table;
determining the mapping relation between the physical link and the logic service according to the bandwidth of the physical link and the bandwidth of the logic service network; the mapping relation is network bandwidth occupied by the logic service on the physical link; the calculating the bandwidth of the physical link according to the duration time of the flow table and the number of bytes sent by the flow table comprises the following steps:
sending down a request for statistical information of flow entries of switch ports to the switch, obtaining the statistical information of the flow entries of the switch ports,
acquiring the number of bytes sent by a flow table of a switch port and the duration of the flow table according to the flow table entry statistical information;
calculating the bandwidth of a physical link according to the number of bytes sent by a flow table of a port of the switch and the duration of the flow table;
the expression of the physical link bandwidth is as follows:
physical link bandwidth (tbyten-tbyte (n-1))/(tn-t (n-1))
In the formula: t (n-1) is the time for acquiring the number tbyte (n-1) of sent bytes at the n-1 th time, and tn is the time for acquiring the number tbyten of sent bytes at the n th time; tbyte (n-1) is the n-1 th acquisition of the number of bytes sent; tbyten is the nth acquisition of the number of bytes sent;
the expression of the service network bandwidth is as follows:
service network bandwidth ═ (tbyten '-tbyte (n-1)')/(tn '-t (n-1)')
In the formula: t (n-1) 'is the time for acquiring the number tbyte (n-1)' of matched bytes of the flow table at the n-1 th time, and tn 'is the time for acquiring the number tbyten' of matched bytes of the flow table at the n-1 th time; tbyte (n-1)' is the number of bytes matched with the flow table obtained in the (n-1) th time; tbyten' is the number of bytes matched for the flow table acquired the nth time.
2. The power dispatching network information centralized management and control method of claim 1, wherein: collecting relevant equipment information of the power system to form a full-network topological relation, comprising the following steps:
collecting the equipment information of the power system to generate network data; the network data includes: switch information, physical link information and power dispatching system host information;
and acquiring the connection relation between the switches, the physical links and the power dispatching system host in the jurisdiction range according to the physical link state protocol to form a full-network topological relation.
3. The power dispatching network information centralized management and control method of claim 1, wherein: and in the calculation time window, when the calculated physical link bandwidth or the service network bandwidth is 0, taking the physical link bandwidth or the service network bandwidth value of the last calculation time window as the physical link bandwidth or the service network bandwidth value of the time.
4. The power dispatching network information centralized management and control method of claim 1, wherein: before the power dispatching network information is controlled based on the logic service network bandwidth state in the mapping relation, the method also comprises the step of displaying the power dispatching network information based on the mapping relation, and the method comprises the following steps:
displaying the full-network topological relation of the mapping relation between the physical link and the logic service in a graph form;
the graphic form comprises: displaying physical links in different colors in a full-network topological relation through which a service flow passes;
physical links identified in different colors include: classifying the network bandwidth state based on the bandwidth occupied by the logic service in the physical link, and setting different colors according to the network bandwidth state.
5. The power dispatching network information centralized management and control method of claim 4, wherein: the graphic form also includes:
when a physical link in the whole network topological relation is selected, displaying a source destination IP address, a source destination port address and a current period occupied bandwidth of a logical service on the physical link through TIP prompt information;
when the physical link in the topology relation of the whole network is not selected, the TIP prompt message disappears.
6. The power dispatching network information centralized management and control method of claim 4, wherein: the classifying the network bandwidth state includes:
and dividing the network bandwidth state into a normal state, an early warning state and a serious state according to the physical link bandwidth occupation ratio.
7. The power dispatching network information centralized management and control method of claim 6, wherein: the physical link bandwidth occupation ratio calculation mode is as follows:
the occupation ratio is the actual bandwidth occupation of the physical link/the maximum bandwidth% of the physical link.
8. The power dispatching network information centralized management and control method of claim 1, wherein: the controlling the power dispatching network information based on the logical service network bandwidth state in the mapping relation comprises:
and according to the mapping relation between the physical link and the logic service, when the network bandwidth state of the logic service reaches an early warning or serious state, adopting a preset quality of service (Qos) strategy to recover the network bandwidth occupation to a normal level.
9. The network information centralized management and control system for the power dispatching network information centralized management and control method according to claim 1, characterized in that: the method comprises the following steps:
the forming module is used for collecting equipment information of the power system and forming a full-network topological relation;
the establishing module is used for establishing a mapping relation between a physical link and a logic service based on the whole network topological relation;
the management and control module is used for managing and controlling the power dispatching network information based on the logical service network bandwidth state in the mapping relation;
the forming module includes:
the acquisition unit is used for acquiring the equipment information of the power system to generate network data; the network data includes: switch information, physical link information and power dispatching system host information;
the topology forming unit is used for acquiring the connection relationship between the switches, the physical links and the power scheduling system host in the jurisdiction range according to the physical link state protocol to form a full-network topology relationship;
the establishing module comprises:
the system comprises a counting unit, a judging unit and a judging unit, wherein the counting unit is used for counting flow table entry statistical information in the whole network topological relation through a network switching protocol, and the flow table entry statistical information comprises flow table duration and flow table sending byte number;
the first calculation unit is used for calculating the bandwidth of the physical link according to the duration time of the flow table and the number of bytes sent by the flow table;
the second calculation unit is used for calculating the service network bandwidth according to the duration time of the flow table and the number of bytes matched with the flow table;
the determining unit is used for determining the mapping relation between the physical link and the logic service according to the bandwidth of the physical link and the bandwidth of the logic service network; the mapping relation is network bandwidth occupied by the logic service on the physical link;
the display module is used for displaying the full-network topological relation establishing the mapping relation between the physical link and the logical service in a graph form before the bandwidth state of the logical service network in the mapping relation is used for controlling the power dispatching network information;
the graphic form comprises: the physical links are displayed in different colors in the full-network topological relation through which the traffic flows pass.
10. The network information concentration management and control system according to claim 9, wherein: the first calculation unit includes:
the issuing subunit is used for issuing a switch port flow table entry statistical information request to the switch and acquiring flow table entry statistical information of the switch port;
the acquiring subunit is used for acquiring the number of bytes sent by the flow table of the switch port and the duration of the flow table according to the flow table entry statistical information;
and the first calculation subunit is used for calculating the bandwidth of the physical link according to the number of bytes sent by the flow table of the switch port and the duration of the flow table.
11. The network information concentration management and control system according to claim 9, wherein: the display module comprises:
the classification unit is used for classifying the network bandwidth state based on the physical link bandwidth occupied by the service flow in the physical link before the electric power dispatching network information is controlled based on the logical service network bandwidth state in the mapping relation;
the setting unit is used for setting different colors according to the classified network bandwidth states;
and the display unit is used for displaying the physical links in different colors in the full-network topological relation passed by the traffic flow.
12. The network information concentration management and control system according to claim 11, wherein: the classification unit is also used for classifying the network bandwidth state into a normal state, an early warning state and a serious state according to the physical link bandwidth occupation ratio; and the management and control module is used for adopting a preset quality of service (Qos) strategy to restore the network bandwidth occupation to a normal level when the network bandwidth state of the logic service reaches an early warning or serious state according to the mapping relation between the physical link and the logic service.
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| CN110912746A (en) * | 2019-11-28 | 2020-03-24 | 江苏电力信息技术有限公司 | Network link analysis method based on network topological graph |
| CN111953530A (en) * | 2020-07-28 | 2020-11-17 | 深圳供电局有限公司 | Network equipment monitoring management method and system |
| CN114070742A (en) * | 2021-11-09 | 2022-02-18 | 中国南方电网有限责任公司超高压输电公司百色局 | Network topology identification method and platform for electric power monitoring system |
| CN114338365A (en) * | 2022-01-18 | 2022-04-12 | 北京亿安天下科技股份有限公司 | Network automation management system |
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