CN115913985A - Link cutover simulation method and system - Google Patents
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Abstract
The application relates to a link cutover simulation method and a system, wherein the method comprises the following steps: simulating the switching route of the affected service when the existing network link is cut over based on the network topology of the existing network equipment and the cutting over scheme corresponding to the user cutting over task and obtaining a simulation result; verifying whether the simulation result can be successfully inverted or not by the existing network twinning technology; and storing the simulation result verified as being capable of being switched successfully and switching the service according to the stored simulation result when the cutover is required. The invention can improve the timeliness and stability of service switching in the process of link cutover.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method and a system for simulating link cutover.
Background
With the continuous development of modern communication technologies, in order to maintain normal operation of a communication network, the network generally needs to be maintained regularly, which includes, but is not limited to, improving network performance, updating network devices, performing capacity expansion operation on an existing network, and the like. In the processes of network upgrade, device update, and network capacity expansion, a cutover operation is usually required for the network.
In the traditional cutover method, the existing network is directly operated after manual evaluation or simple test, and after network failure occurs in cutover, the service influenced by a network cutover point has the risk of migration failure. Under the condition of failure of service migration, the affected current network service is subjected to route recalculation by utilizing the route recalculation capability of a PCE (Path Computation Element) unit of the current network, and because the route recalculation needs certain time and resources, the requirement of service quick recovery cannot be met, and the use experience of a user is affected. Once the PCE routing is unsuccessful, it may cause the traffic to be paralyzed for a long time, which is a great challenge to the stable operation of the current network.
In order to avoid manual operation, in the related art, optical switches are deployed among all adjacent network elements in a network topology, and the on-off of the optical switches is controlled by a state machine to realize the automation of the test. In other techniques, the complete and accurate knowledge of the physical and logical data related to the splicing is obtained before the optical cable is spliced, and then an engineering implementation decision is provided, a new splicing point and two new physical fiber cores are generated on two sides of the splicing point by deleting the original old physical fiber core, and the service stored on the original fiber core is simultaneously given to the two new physical fiber cores.
However, the related technology is still limited to simulation on physical equipment, and the timeliness and stability of the existing network during link cutover operation cannot be effectively improved.
Disclosure of Invention
The embodiment of the invention provides a link cutover simulation method and a link cutover simulation system, which can improve the timeliness of service switching in the link cutover process.
In one aspect, an embodiment of the present invention provides a link cutover simulation method, which is characterized in that the method includes:
simulating the switching route of the affected service when the existing network link is cut over based on the network topology of the existing network equipment and the cutting over scheme corresponding to the user cutting over task and obtaining a simulation result;
verifying whether the simulation result can be successfully inverted or not by the existing network twinning technology;
and storing the simulation result verified as being capable of being successfully switched and switching the service according to the stored simulation result when the cutover is required.
In some embodiments, the simulating the switching route of the affected service when the existing network link is cut over and obtaining the simulation result based on the network topology of the existing network device and the cut-over scheme corresponding to the user cut-over task includes:
acquiring network topology data of existing network equipment according to a user request, wherein the network topology data comprises existing network nodes, links and corresponding service routes;
starting simulation analysis according to a cutting scheme input by a user to obtain a corresponding analysis result, wherein one or more cutting schemes correspond to one cutting task;
determining a final simulation result according to the analysis result;
the cutting scheme comprises one or more links to be cut and an execution sequence among the links during cutting;
the analysis result comprises the affected service corresponding to the cutover scheme and the switching route calculated based on the affected service.
In some embodiments, the determining a final simulation result according to the analysis result includes:
if a plurality of cutting schemes exist, determining an optimal cutting scheme in all the cutting schemes according to the analysis result corresponding to each cutting scheme;
if only one cutting scheme exists, directly taking the cutting scheme as the optimal cutting scheme;
and taking the analysis result corresponding to the optimal cutting scheme as a final simulation result.
In some embodiments, the verifying whether the simulation result can be successfully switched by using the existing network twinning technology includes:
verifying whether a service path is communicated from a service source node to a destination node on the virtualized twin network model, if so:
and sequentially verifying whether the switched routing service channel resources are idle or not, whether the switched routing service channel resources are not in conflict with other service resources of the current network or not and whether the service signal-to-noise ratio meets preset conditions or not, and if so, judging that the service can be successfully switched.
In a second aspect, an embodiment of the present invention further provides a link cutover simulation system, where the link cutover simulation system includes:
the cut-over simulation subsystem is used for simulating the switching route of the affected service when the existing network link is cut over according to the network topology of the existing network equipment and the cut-over scheme corresponding to the user cut-over task;
the existing network equipment twin subsystem is used for verifying whether the simulation result can be successfully switched or not through an existing network twin technology;
and the current network equipment management subsystem is used for storing the simulation result which is verified to be capable of being successfully switched and enabling the current network equipment to switch the service according to the stored simulation result when the cut-over is required.
In some embodiments, the present network device management subsystem is further configured to obtain network topology data from the present network device according to a user request, where the network topology data includes: the existing network node, the link and the corresponding service route;
the cutover simulation subsystem is further configured to:
starting simulation analysis according to a cutting scheme input by a user to obtain a corresponding analysis result, wherein one or more cutting schemes correspond to one cutting task;
determining a final simulation result according to the analysis result;
the cutting scheme comprises one or more links to be cut and an execution sequence among the links during cutting;
the analysis result comprises the affected service corresponding to the cut-over scheme and the switching route calculated based on the affected service.
In some embodiments, the cutover simulation subsystem is further configured to:
if a plurality of cutting schemes exist, determining an optimal cutting scheme in all the cutting schemes according to the analysis result corresponding to each cutting scheme;
if only one cutting scheme exists, directly taking the cutting scheme as the optimal cutting scheme;
and taking the analysis result corresponding to the optimal cutting scheme as a final simulation result.
In some embodiments, the existing network device management subsystem is further configured to synchronize the network topology data to the existing network device twin subsystem;
and the existing network twin subsystem is provided with an existing network message receiver which is used for generating twin equipment, twin topology and twin service according to the received network topology data.
In some embodiments, the emerging net twinning subsystem is further configured to:
and verifying the simulation result output by the existing network equipment management subsystem according to the twin equipment, the twin topology and the twin service, and taking whether the simulation route of the corresponding affected service can be successfully switched in the twin equipment as a verification result.
In some embodiments, the emerging net twinning subsystem is further configured to:
verifying whether a service path is communicated from a service source node to a sink node or not based on the twin equipment, the twin topology and the twin service, if so:
and sequentially verifying whether the switched routing service channel resources are idle or not, whether the switched routing service channel resources are not in conflict with other service resources of the current network or not and whether the service signal-to-noise ratio meets preset conditions or not, and if so, judging that the service can be successfully switched.
The embodiment of the invention provides a link cutover simulation method and a link cutover simulation system, wherein the method comprises the steps of simulating influenced services and service switching routes according to a cutover scheme and cutover parameters of a user, verifying a simulation result in a current network twinning mode, presetting the verified cutover parameters and schemes, and carrying out cutover according to the preset schemes and parameters when the cutover is needed. The system can facilitate clients to predict in advance and avoid the risk possibly occurring in cutover, the power-assisted network realizes low-cost trial and error, and the automation and intelligence level of the network is improved. Meanwhile, the stability and the reliability of the network when the existing network carries out link cutting operation are greatly improved, the cutting scheme verified by the system in a simulation mode can realize batch cutting of the existing network links, the cutting efficiency is greatly improved, and the labor cost is reduced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic flow chart of a link cutover simulation method according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a link cutover simulation structure according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a cut-over simulation subsystem according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of an existing network device management subsystem according to an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a twin subsystem of an existing network device according to an embodiment of the present invention;
fig. 6 is an example of an existing network topology provided by the embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
As shown in fig. 1, an embodiment of the present invention provides a link cutover simulation method, which includes:
s100, simulating the switching route of the affected service when the existing network link is cut over based on the network topology of the existing network equipment and the cut-over scheme corresponding to the user cut-over task;
s200, verifying whether the simulation result can be successfully switched or not through the existing network twin technology;
and S300, storing the simulation result verified as being capable of being successfully switched and switching the service according to the stored simulation result when the cut-over is needed.
The embodiment of the invention simulates the affected service and the service switching route according to the cutting task of the user, verifies the simulation result through the existing network twinning mode, presets the cutting parameters and the scheme which pass the verification, and cuts according to the preset scheme and the parameters when needing cutting. The system can facilitate clients to predict in advance and avoid the risk possibly occurring in cutover, the power-assisted network realizes low-cost trial and error, and the automation and intelligence level of the network is improved. Meanwhile, the stability and the reliability of the network when the existing network carries out link cutting operation are greatly improved, the cutting scheme verified by the system in a simulation mode can realize batch cutting of the existing network links, the cutting efficiency is greatly improved, and the labor cost is reduced.
In some embodiments, step S100 further comprises:
s110, acquiring network topology data of the current network equipment according to a user request, wherein the network topology data comprises: the existing network node, the link and the corresponding service route;
s120, starting simulation analysis according to a cutting scheme input by a user to obtain a corresponding analysis result, wherein one or more cutting schemes correspond to one cutting task;
s130, determining a final simulation result according to the analysis result;
it should be noted that, the service route further includes a service path and a wavelength; the cutting scheme comprises one or more links to be cut and an execution sequence among the links during cutting; the analysis result comprises the affected service corresponding to the cutover scheme and the switching route calculated based on the affected service.
In some embodiments, S130 comprises:
s131, if a plurality of cutting schemes exist, determining an optimal cutting scheme in all the cutting schemes according to the analysis result corresponding to each cutting scheme;
and S132, taking the analysis result corresponding to the optimal cutting scheme as a final simulation result.
In some embodiments, S130 comprises:
s133, if only one cutting scheme exists, directly taking the cutting scheme as the optimal cutting scheme;
and S134, taking the analysis result corresponding to the optimal cutting scheme as a final simulation result.
In some embodiments, S200 comprises:
s210, verifying whether a service path is communicated from a service source node to a sink node on the virtualized twin network model, if so:
s220, sequentially verifying whether the switched routing service channel resources are idle or not, whether the switched routing service channel resources are not in conflict with other service resources of the current network or not and whether the service signal-to-noise ratio meets preset conditions or not, and if so, judging that the service can be switched successfully.
It can be understood that, on the virtual twin network model, the affected service switching routes are sequentially verified, including verifying whether the service path is communicated from the service source node to the sink node, whether the switching route service channel resource is idle, whether the switching route service channel resource conflicts with other service resources of the current network (no conflict is a condition satisfied), and whether the service signal-to-noise ratio can satisfy the requirements, and for each affected service, if the simulated switching route satisfies the above conditions, it is determined that the service can be successfully switched.
As shown in fig. 2, an embodiment of the present invention further provides a link cutover simulation system, which includes:
the cut-over simulation subsystem is used for simulating the switching route of the affected service when the existing network link is cut over according to the network topology of the existing network equipment and the cut-over scheme corresponding to the user cut-over task;
the existing network equipment twin subsystem is used for verifying whether the simulation result can be successfully switched or not through an existing network twin technology;
and the current network equipment management subsystem is used for storing the simulation result which is verified to be capable of being successfully switched and enabling the current network equipment to switch the service according to the stored simulation result when the cut-over is required.
It should be noted that the cutover simulation subsystem may analyze the routes of the services in the system based on the cutover link group configured in the cutover scheme, and if all the routes of a certain service pass through one of the links included in the cutover link group, it is determined that the service is affected, so as to find out all the services affected under the cutover scheme in the system. The simulation results of the cutover simulation subsystem include a new route that is not routed through the cutover link set for each of all affected services using a routing algorithm (e.g., dynamic programming, dijkstra, etc.).
The twin subsystem of the existing network equipment is based on real physical equipment, 1. The twin subsystem can verify whether the simulation result (switching route) can ensure the normal operation of the service on the virtual twin network model, and if the service can normally operate, the verification is successful.
The embodiment of the invention can be based on the full-automatic link cutover simulation, simulation result verification, verification result comparison and simulation result presetting schemes of different existing network topologies, the same existing network topology, different cutover parameters, the same existing network topology, the same cutover parameters and different cutover schemes.
In some embodiments, the existing network device management subsystem is further configured to obtain network topology data from the existing network device according to a user request, where the network topology data includes: the existing network node, the link and the corresponding service route;
the cutover simulation subsystem is further configured to:
starting simulation analysis according to a cutting scheme input by a user to obtain a corresponding analysis result, wherein one or more cutting schemes correspond to one cutting task;
determining a final simulation result according to the analysis result;
the cutting scheme comprises one or more links to be cut and an execution sequence among the links during cutting; the analysis result comprises the affected service corresponding to the cutover scheme and the switching route calculated based on the affected service.
In some embodiments, the cutover simulation subsystem is further configured to:
when a plurality of cutting schemes exist, determining an optimal cutting scheme in all the cutting schemes according to the analysis result corresponding to each cutting scheme;
and taking the analysis result corresponding to the optimal cutting scheme as a final simulation result.
In some embodiments, the cutover simulation subsystem is further configured to:
when only one cutting scheme exists, directly taking the cutting scheme as an optimal cutting scheme;
and taking the analysis result corresponding to the optimal cutting scheme as a final simulation result.
In some embodiments, the existing network device management subsystem is further configured to synchronize the network topology data to the existing network device twin subsystem; and the existing network twin subsystem is provided with an existing network message receiver which is used for generating twin equipment, twin topology and twin service according to the received network topology data.
Furthermore, the existing network twin subsystem is further configured to verify a simulation result output by the existing network device management subsystem according to the twin device, the twin topology, and the twin service, and use whether the corresponding affected service simulation route can be successfully switched in the twin device as a verification result.
In some embodiments, the emerging net twinning subsystem is further configured to:
verifying whether a service path is communicated from a service source node to a destination node or not based on the twin device, the twin topology and the twin service, if so:
and sequentially verifying whether the switched routing service channel resources are idle or not, whether the switched routing service channel resources are not in conflict with other service resources of the current network or not and whether the service signal-to-noise ratio meets preset conditions or not, and if so, judging that the service can be successfully switched.
In a specific embodiment, as shown in fig. 2, the link cutover simulation system is composed of three subsystems, wherein the internal structure of the cutover simulation subsystem is shown in fig. 3, the internal structure of the existing network device management subsystem is shown in fig. 4, and the internal structure of the existing network device twin subsystem is shown in fig. 5. The user interacts with the whole system through the cutover simulation subsystem, and the specific processing flow is as follows:
s1: when a user receives a cutting task, the user inputs a current network equipment management subsystem IP of current network equipment to be cut through a cutting simulation subsystem interface, and the current network equipment management subsystem is connected with the current network equipment management subsystem to be cut through the cutting simulation subsystem;
s2: a user requests the topology data (including information such as nodes, links, service routes and the like of the existing network equipment) of the existing network equipment from the existing network equipment management subsystem through the cut-over simulation subsystem, and the existing network equipment management subsystem synchronizes the topology data of the existing network to the twin subsystem of the existing network equipment;
s3: a user creates a cut-over task through a cut-over simulation subsystem interface;
s4: the user inputs a cutting scheme based on the cutting task created in the step S3; the cutting scheme is a group of links to be cut, each group of cutting link group comprises one or more links to be cut, the sequence of the links in the cutting link group represents the sequence of the links during cutting, and one or more cutting schemes can be created under the same task;
s5: starting simulation analysis of the cutting scheme based on the cutting scheme created in the step S4;
s6: the cut-over simulation subsystem finishes the analysis and obtains the analysis result (mainly comprising the affected services under each cut-over scheme and calculating the cut-over switching route for the affected services);
s7: if a plurality of cutting schemes are input in the step S4, comparing the analysis results of each cutting scheme analyzed in the step S6, and selecting the optimal cutting scheme by a user according to the comparison results; if only one cutting scheme is input in the step S4, skipping the step S7, and directly selecting the analysis result of the cutting scheme as the optimal scheme;
s8: the cutover simulation subsystem makes the analysis result of the optimal scheme into a file and sends the file to the equipment twin subsystem for verifying the service cutover simulation switching result;
s9: and the equipment twin subsystem returns the verification result to the cut-over simulation subsystem. The cut-over simulation subsystem acquires a verification result returned by the twin subsystem;
s10: if the verification result is that the verification is passed, the result file of the simulation analysis of the cutover simulation subsystem is issued to the current network equipment management subsystem;
s11: and after analyzing the simulation analysis result file, the current network equipment management subsystem stores the simulated link cut-over affected service switching route to the current network preset.
The whole system completes the creation of a cutover scene and a cutover scheme by a user, the analog calculation of the cutover scheme, the verification of the analog calculation result and the discovery of the whole set of process preset by the network under the verification result. When the user performs the link cutover operation in the current network according to the cutover scheme corresponding to the preset service switching data, the affected services in the link cutover process can be quickly switched according to the preset result, and the timeliness of service switching in the link cutover process is greatly improved.
In a specific embodiment, as shown in fig. 6, the existing network topology includes four sites, node1, node2, node3, and node4, four links, section1, section2, section3, section4, and 6 services: wherein, three service paths of biz1, biz2 and biz3 are node1-section1-node2-section2-node3, and three service paths of biz4, biz5 and biz6 are node1-section4-node4-section3-node3. Because the line is upgraded, the two links of section2 and section3 of the current network need to be cut, before the cutting operation is performed on the current network, the system is used for simulating and verifying the cutting task, and the simulation result passing the verification is issued to the preset of the current network.
Based on the link cutover simulation system provided by the invention, a user is connected with a topology resource reporting module of a current network equipment management subsystem in the figure 4 through a current network message processor module of the cutover simulation subsystem in the figure 3 to acquire current network topology and service information; meanwhile, a topology resource reporting module of the existing network device management subsystem in fig. 4 synchronizes the existing network topology and device resources to an existing network message receiver in the existing network twin subsystem in fig. 5, and a twin device, a twin topology and a twin service are generated through a topology message processor and a device message processor in fig. 5; a user can generate a cutting task and a cutting scheme through a cutting task and scheme generation module of the cutting simulation subsystem in fig. 3, wherein the cutting task comprises two link sections 2 and 3 of the current cutting, the section2 and the section3 are divided into two groups for cutting in the cutting scheme 1, and the section2 and the section3 are divided into the same group for cutting in the cutting scheme 2; after the cutting task and the scheme are generated, a cutting scheme simulation calculation module of the cutting simulation subsystem in fig. 3 is called to perform simulation calculation on the cutting scheme.
Through a multi-cutover scheme comparison analysis module in fig. 3, it is found that each group in the cutover scheme 1 has 3 affected services, all of which can be recovered normally, and 6 affected services in the cutover scheme 2 cannot be recovered, and the cutover scheme 1 is selected; the simulation result of the scheme 1 is stored and is sent to a cutover simulation result receiving resolver in the network twin subsystem in fig. 5 through a lower twin verification module in fig. 3.
In fig. 5, the cut-over simulation verification module in the twin subsystem of the existing network verifies whether the affected service simulation route can be successfully switched in the twin device by using the generated twin device, the twin topology, the twin service and the received cut-over simulation result, and feeds back the verification result to the verification result display and lower cut-over simulation result receiving preset module in fig. 3 through the verification message feedback module in fig. 5. The simulation results show details as shown in tables 1 and 2:
TABLE 1
TABLE 2
Table 1 shows the case of performing cutover simulation and verification on section2, where the services affected by the cutover group include biz1, biz2, and biz3, the original routes of which are node1-section1-node2-section2-node3, and the simulated switching route is node1-section4-node4-section3-node3, and the simulated switching route verifies that switching passes through in the twin subsystem of the existing network.
Table 2 shows the case of performing cutover simulation and verification on section3, where the services affected by the cutover group include biz4, biz5, and biz6, the original routes of which are node1-section4-node4-section3-node3, and the simulated switching route is node1-section1-node2-section2-node3, and the simulated switching route passes the verification switching in the existing network twin subsystem.
Finally, the user checks the displayed verification result through the cutover simulation sub, and issues the simulation result passing the verification to the cutover simulation result receiving and presetting module of the current network equipment management subsystem in fig. 4 to preset the cutover simulation result into the current network equipment management subsystem.
The embodiment of the invention has the beneficial effects that:
for any physical network, a method for constructing a cut-over scene and carrying out simulation calculation on the affected service path in the cut-over scene is provided for a user. The method for linking the cutting simulation result system with the simulation result verification system is provided, and the full automation purposes of cutting simulation, simulation result verification and simulation result presetting are achieved. The client can predict in advance conveniently, the risk which may occur in the cutover is avoided, the power-assisted network realizes low-cost trial and error, intelligent decision and high-efficiency innovation, and the automation and intelligence level of the network is improved. The stability and reliability of the network when the existing network carries out the link cutover operation can be effectively improved.
It will be understood by those of ordinary skill in the art that all or some of the steps of the methods, systems, functional modules/units in the devices disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. In a hardware implementation, the division between functional modules/units mentioned in the above description does not necessarily correspond to the division of physical components; for example, one physical component may have multiple functions, or one function or step may be performed by several physical components in cooperation. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable storage media, which may include computer readable storage media (or non-transitory media) and communication media (or transitory media).
It is to be noted that, in the present invention, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising one of 8230; \8230;" 8230; "does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.
The foregoing are merely exemplary embodiments of the present invention, which enable those skilled in the art to understand or practice the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A method for simulating link cutover, comprising:
simulating the switching route of the affected service during the existing network link cutting based on the network topology of the existing network equipment and the cutting scheme corresponding to the user cutting task and obtaining a simulation result;
verifying whether the simulation result can be successfully inverted or not by the existing network twinning technology;
and storing the simulation result verified as being capable of being switched successfully and switching the service according to the stored simulation result when the cutover is required.
2. The link cutover simulation method according to claim 1, wherein the simulating the switched route of the affected service during the cutover of the existing network link based on the network topology of the existing network device and the cutover scheme corresponding to the user cutover task and obtaining a simulation result comprises:
acquiring network topology data of the existing network equipment according to a user request, wherein the network topology data comprises existing network nodes, links and corresponding service routes;
starting simulation analysis according to a cutting scheme input by a user to obtain a corresponding analysis result, wherein one or more cutting schemes correspond to one cutting task;
determining a final simulation result according to the analysis result;
the cutting scheme comprises one or more links to be cut and an execution sequence among the links during cutting;
the analysis result comprises the affected service corresponding to the cut-over scheme and the switching route calculated based on the affected service.
3. A method for link cutover simulation as set forth in claim 2 wherein said determining a final simulation result from said analysis results comprises:
if a plurality of cutting schemes exist, determining an optimal cutting scheme in all the cutting schemes according to the analysis result corresponding to each cutting scheme;
if only one cutting scheme exists, directly taking the cutting scheme as the optimal cutting scheme;
and taking the analysis result corresponding to the optimal cutting scheme as a final simulation result.
4. The link cutover simulation method according to claim 1, wherein the verifying whether the simulation result can be switched successfully by the existing network twin technology comprises the steps of:
verifying whether a service path is communicated from a service source node to a destination node on the virtualized twin network model, if so:
and sequentially verifying whether the switched routing service channel resources are idle or not, whether the switched routing service channel resources are not in conflict with other service resources of the current network or not and whether the service signal-to-noise ratio meets preset conditions or not, and if so, judging that the service can be successfully switched.
5. A link cutover simulation system, comprising:
the cut-over simulation subsystem is used for simulating the switching route of the affected service when the existing network link is cut over according to the network topology of the existing network equipment and the cut-over scheme corresponding to the user cut-over task;
the existing network equipment twinning subsystem is used for verifying whether the simulation result can be successfully inverted or not through an existing network twinning technology;
and the current network equipment management subsystem is used for storing the simulation result which is verified to be capable of being successfully switched and enabling the current network equipment to switch the service according to the stored simulation result when the cut-over is required.
6. The link cutover simulation system of claim 5,
the existing network equipment management subsystem is also used for acquiring network topology data from the existing network equipment according to a user request, wherein the network topology data comprises: the existing network node, the link and the corresponding service route;
the cutover simulation subsystem is further configured to:
starting simulation analysis according to a cutting scheme input by a user to obtain a corresponding analysis result, wherein one or more cutting schemes correspond to one cutting task;
determining a final simulation result according to the analysis result;
the cutting scheme comprises one or more links to be cut and an execution sequence among the links during cutting;
the analysis result comprises the affected service corresponding to the cut-over scheme and the switching route calculated based on the affected service.
7. A link cutover simulation system as claimed in claim 6 wherein said cutover simulation subsystem is further operable to:
if a plurality of cutting schemes exist, determining an optimal cutting scheme in all the cutting schemes according to the analysis result corresponding to each cutting scheme;
if only one cutting scheme exists, directly taking the cutting scheme as the optimal cutting scheme;
and taking the analysis result corresponding to the optimal cutting scheme as a final simulation result.
8. The link cutover simulation system of claim 6,
the existing network equipment management subsystem is also used for synchronizing the network topology data to the existing network equipment twin subsystem;
and the existing network twin subsystem is provided with an existing network message receiver which is used for generating twin equipment, twin topology and twin service according to the received network topology data.
9. The link severance simulation system of claim 8 wherein the incumbent twin subsystem is further to:
and verifying the simulation result output by the existing network equipment management subsystem according to the twin equipment, the twin topology and the twin service, and taking whether the simulation route of the corresponding affected service can be successfully switched in the twin equipment as a verification result.
10. The link severance simulation system of claim 9 wherein the incumbent net twinner subsystem is further configured to:
verifying whether a service path is communicated from a service source node to a destination node or not based on the twin device, the twin topology and the twin service, if so:
and sequentially verifying whether the switched routing service channel resources are idle or not, whether the switched routing service channel resources are not in conflict with other service resources of the current network or not and whether the service signal-to-noise ratio meets preset conditions or not, and if so, judging that the service can be successfully switched.
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