CN108712285A - A kind of analog simulation method and device of optical transport network - Google Patents

Abstract

The invention discloses a method and device for simulating an optical transmission network. The method includes: receiving all configuration data of the optical transmission network; establishing an optical transmission network object and its corresponding simulation action and fault phenomenon library; receiving the selection of the simulation object Instruction and its corresponding simulation action selection command, select the simulation object and its corresponding simulation action in the optical transmission network object and its corresponding simulation action, fault phenomenon library; according to the selected simulation object to establish a virtual machine, the selected simulation Objects and their corresponding simulation actions are simulated, and network-level impact analysis is performed according to the principle of optical transmission network, and the simulation results are output. The present invention can present detailed network effects and is suitable for simulation software used by maintenance departments.

Description

A simulation method and device for an optical transmission network

technical field

The invention belongs to the technical field of simulation, and in particular relates to a simulation method and device for an optical transmission network.

Background technique

The networking of SDH optical transmission network equipment is complicated, and the service configuration is complicated. It is difficult to evaluate the impact of single-point or multi-point failure. Under the premise of ensuring normal business, the maintenance department has difficulties in the fault reproduction, operation verification, and fault simulation of the live network. Support the operation and maintenance work.

At present, the fault simulation of the network in the industry mainly uses the service survivability analysis system. As a part of professional service tools, the service survivability analysis system mainly focuses on the service survivability analysis, and calculates whether there is xx% of the service after certain faults occur. got protection. However, service survivability analysis has many shortcomings in network fault simulation: service survivability analysis only focuses on service protection, and does not provide network elements, single boards, alarms, switching, and disconnection that the maintenance department is concerned about. To meet the needs of the maintenance department, it is only suitable for network optimization professional service personnel to evaluate service availability.

To sum up, in the prior art, there is still no effective solution to the problem of how to satisfy the fault simulation of the optical transmission network performed by the maintenance department to present detailed network impact.

Contents of the invention

Aiming at the deficiencies in the prior art, the present invention provides a simulation method for the optical transmission network to solve the problem of how to satisfy the fault simulation of the optical transmission network by the maintenance department in the prior art to present detailed network impacts And devices, realize the fault simulation of the optical transmission network, present detailed fault phenomena and impact analysis to the maintenance department, and help the maintenance department to formulate a complete and accurate operation plan to achieve precise maintenance.

The first object of the present invention is to provide a method for simulating an optical transmission network.

In order to achieve the above object, the present invention adopts the following technical scheme:

A method for simulating an optical transmission network, the method comprising:

Receive all the configuration data of the optical transmission network; establish the optical transmission network object and its corresponding simulation action and fault phenomenon library;

Receive the selection instruction of the simulation object and the selection instruction of its corresponding simulation action, select the simulation object and its corresponding simulation action in the optical transmission network object and its corresponding simulation action, and the fault phenomenon library;

Establish a virtual machine according to the selected simulation object, simulate the selected simulation object and its corresponding simulation action, and perform network-level impact analysis according to the principle of optical transmission network, and output the simulation result.

As a further preferred solution, in this method, an optical transmission network object and its corresponding simulation action and fault phenomenon library are established, and objects, simulation actions, Correspondence between fault symptoms and topological relationships.

As a further preferred solution, in the optical transmission network object and its corresponding simulation action and fault phenomenon library, the object is an operable component in the optical transmission network, including: network management, network element, single board, optical cable, optical fiber, Pigtails, power supplies and docking devices.

As a further preferred solution, in the optical transmission network object and its corresponding simulation actions and fault phenomenon library, the simulation actions include: network element power down, power interruption, single board insertion, single board removal, single board failure , fiber interruption, pigtail broken, poor contact of pigtail, excessive bending of pigtail, power jitter, node failure and input clock drift;

As a further preferred solution, in the optical transmission network object and its corresponding simulation action and fault phenomenon library, the fault phenomena include: alarm, bit error, offline, switching, interruption, disconnection, event, performance and misconnection.

As a further preferred solution, in this method, each service simulation object starts several virtual machines for simulating different simulation objects, the virtual machines include network element virtual machines and/or fiber virtual machines, and the network element virtual machines It is used to represent the network elements in the physical network, including different board objects and protection protocol simulators, which are used to simulate the reaction and output of the system in the simulation scenario; the fiber virtual machine is used to represent the optical fibers in the physical network.

As a further preferred solution, in this method, the output simulation results include a network topology for visually displaying the simulated fault and a calculated impact analysis result table.

As a further preferred solution, in this method, the impact analysis result table includes a service interruption statistics table, an affected network element statistics table, a newly added alarm statistics table, and a protection switching statistics table.

A second object of the present invention is to provide a computer-readable storage medium.

In order to achieve the above object, the present invention adopts the following technical scheme:

A computer-readable storage medium, in which a plurality of instructions are stored, and the instructions are suitable for being loaded by a processor of a terminal device and performing the following processing:

Receive all the configuration data of the optical transmission network; establish the optical transmission network object and its corresponding simulation action and fault phenomenon library;

Receive the selection instruction of the simulation object and the selection instruction of its corresponding simulation action, select the simulation object and its corresponding simulation action in the optical transmission network object and its corresponding simulation action, and the fault phenomenon library;

Establish a virtual machine according to the selected simulation object, simulate the selected simulation object and its corresponding simulation action, and perform network-level impact analysis according to the principle of optical transmission network, and output the simulation result.

The third object of the present invention is to provide a terminal device.

In order to achieve the above object, the present invention adopts the following technical scheme:

A terminal device, including a processor and a computer-readable storage medium, the processor is used to implement instructions; the computer-readable storage medium is used to store multiple instructions, and the instructions are suitable for being loaded by the processor and performing the following processing:

Receive all the configuration data of the optical transmission network; establish the optical transmission network object and its corresponding simulation action and fault phenomenon library;

Receive the selection instruction of the simulation object and the selection instruction of its corresponding simulation action, select the simulation object and its corresponding simulation action in the optical transmission network object and its corresponding simulation action, and the fault phenomenon library;

Establish a virtual machine according to the selected simulation object, simulate the selected simulation object and its corresponding simulation action, and perform network-level impact analysis according to the principle of optical transmission network, and output the simulation result.

Beneficial effects of the present invention:

1. A method and device for simulating an optical transmission network according to the present invention. This method supports online import of system data, and the import is the configuration of the live network. The configuration data is complete and effective, and the operator is prevented from performing a large number of simulation scenarios/objects. structure, and the simulation is close to the real situation, and the simulation results are more realistic.

2. A method and device for simulating an optical transmission network according to the present invention. The simulation is a virtual overall network, and several virtual machines are started for each business object to perform network chain calculations. The entire calculation process has no effect on the existing network. any impact.

3. A simulation method and device for an optical transmission network according to the present invention, the simulation results are output and displayed in two ways: the network topology of the simulated fault and the calculated impact analysis result table, and the visualized network topology presentation method is close to Operator perception is clear at a glance, which is helpful for users to understand the calculation results; the data in the impact analysis result table accurately describes the impact of the network, and maintenance personnel can formulate network maintenance plans based on this information.

4. The method and device for simulating an optical transmission network according to the present invention can realize fault reproduction, operation verification and fault simulation. Through fault reproduction, it can simulate cracking of a certain performance index or software and hardware faults, and reproduce and analyze faults Fault phenomenon, locate the cause of the fault; through operation verification, verify the impact of a certain maintenance operation on the system, evaluate the impact, and assist in decision-making; through fault simulation, actively simulate a fault scenario in daily work to evaluate the impact on system operation.

Description of drawings

The accompanying drawings constituting a part of the present application are used to provide further understanding of the present application, and the schematic embodiments and descriptions of the present application are used to explain the present application, and do not constitute improper limitations to the present application.

Fig. 1 is the simulation method flowchart of optical transmission network of the present invention;

Fig. 2 is the overall flowchart of embodiment 1 of the present invention;

Fig. 3 is a schematic diagram of a virtual network of the present invention;

FIG. 4 is a schematic diagram of a network element virtual machine of the present invention;

Fig. 5 is a schematic diagram of the optical fiber virtual machine of the present invention;

Fig. 6 is a schematic diagram of optical fiber interruption-service impact of the present invention;

Fig. 7 is a flow chart of the optical fiber interruption-business impact algorithm of the present invention;

Fig. 8 is a schematic diagram of RMSP of the present invention affecting the initial service state;

Fig. 9 is a schematic diagram of RMSP affecting the unidirectional interruption situation of the present invention;

Fig. 10 is a schematic diagram of the RMSP of the present invention affecting a bidirectional interruption situation;

Fig. 11 is the normal situation schematic diagram of LMSP switching business of the present invention;

Fig. 12 is a normal schematic diagram of the LMSP of the present invention without switching services;

Fig. 13 is a schematic diagram of LMSP non-switching service interruption of the present invention;

Fig. 14 is a schematic diagram of the normal operation of the optical fiber of the present invention;

Fig. 15 is a schematic diagram of optical fiber interruption service interruption in the present invention;

Fig. 16 is a schematic diagram of the optical fiber interruption-alarm algorithm of the present invention;

Fig. 17 is a schematic diagram of the alarm suppression tree in the board of the present invention;

Fig. 18 is a schematic diagram of the inter-board alarm suppression tree of the present invention;

Fig. 19 is a schematic diagram of the optical fiber interruption-detachment algorithm of the present invention;

Fig. 20 is a flow chart of the fiber interruption-detachment algorithm of the present invention.

Detailed ways:

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless otherwise specified, all technical and scientific terms used in this embodiment have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and/or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and/or combinations thereof.

It should be noted that the flowcharts and block diagrams in the figures show the architecture, functions and operations of possible implementations of the methods and systems according to various embodiments of the present disclosure. It should be noted that each block in a flowchart or a block diagram may represent a module, a program segment, or a part of a code, and the module, a program segment, or a part of a code may include one or more An executable instruction for a specified logical function. It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or they may sometimes be executed in the reverse order, depending upon the functionality involved. It should also be noted that each block in the flowchart and/or block diagrams, and combinations of blocks in the flowchart and/or block diagrams, can be implemented using a dedicated hardware-based system that performs the specified functions or operations , or can be implemented using a combination of dedicated hardware and computer instructions.

In the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be further described below in conjunction with the drawings and the embodiments.

Example 1:

The purpose of Embodiment 1 is to provide a method for simulating an optical transmission network.

In order to achieve the above object, the present invention adopts the following technical scheme:

As shown in Figure 1,

A method for simulating an optical transmission network, the method comprising:

Step (1): Receive all the configuration data of the optical transmission network; establish the optical transmission network object and its corresponding simulation action and fault phenomenon library;

Step (2): Receive the selection instruction of the simulation object and the selection instruction of its corresponding simulation action, select the simulation object and its corresponding simulation action in the optical transmission network object and its corresponding simulation action, and the fault phenomenon library;

Step (3): Create a virtual machine based on the selected simulation object, simulate the selected simulation object and its corresponding simulation action, and perform network-level impact analysis according to the optical transmission network principle, and output the simulation result.

In step (1) of this embodiment, the received live network configuration data of the optical transmission network includes network topology, network element list, single board, optical fiber, port, service, protection heat exchange and other configurations. This embodiment supports online import of system data. The import is the live network configuration. The configuration data is complete and valid, avoiding the operator from constructing a large number of simulation scenarios/objects, and the simulation is close to the real situation, and the simulation results are more realistic.

In step (1) of this embodiment, the optical transmission network object and its corresponding simulation action and fault phenomenon library are established, and the objects, simulation actions, Correspondence between fault symptoms and topological relationships.

In step (1) of this embodiment, in the optical transmission network object and its corresponding simulation action and fault phenomenon library, the object is an operable component in the optical transmission network, including: network management, network element, single board , optical cables, optical fibers, pigtails, power supplies and docking equipment.

The simulated actions include: network element power failure, power interruption, single board insertion, single board removal, single board failure, fiber interruption, pigtail break, poor contact of pigtail, excessive bending of pigtail, power jitter, node glitches and input clock drift;

In this embodiment, the simulation action includes several simulation action operation sets, and different objects correspond to different simulation action operation sets. Failure, hardware failure, software upgrade, soft and hard reset, etc., optical fiber support interruption, etc.

The fault phenomenon includes: alarm, bit error, offline, switchover, interruption, disconnection, event, performance and misconnection.

In this embodiment, the selection object is the optical fiber, and the optical fiber in the simulation action operation set corresponding to the optical fiber is selected to be interrupted; the selection object is a network element, and the network element in the simulation action operation set corresponding to the network element is selected to be powered off; board, select the simulation action corresponding to the board, and take the board insertion and board removal as examples to describe the simulation method of the optical transmission network.

As shown in Figure 2, it is a flow chart of the simulation method for the optical transmission network in this embodiment;

In step (3) of this embodiment, as shown in Figure 3, the physical network is mapped to the virtual network, and each service simulation object starts several virtual machines for simulating different simulation objects. The virtual machines include network element virtual Machine and/or fiber virtual machine, as shown in Figure 4, the network element virtual machine is used to represent the network element in the physical network, including different single board objects, protection protocol simulator, used to simulate the system in the simulation scene response and output; as shown in Figure 5, the fiber virtual machine is used to represent the fiber in the physical network.

In step (3) of this embodiment, a virtual machine is established according to the selected simulation object, the selected simulation object and its corresponding simulation action are simulated, and network-level impact analysis is performed according to the optical transmission network principle:

Analysis of Optical Fiber Outage Scenarios

As shown in Figure 6, any service (including SNCP) can be split into two unidirectional services according to Figure 6, and each unidirectional service can be split into single chains such as unprotected routes Section_NP1, Section_NP2, Section_SNCP_W, and Section_SNCP_P , each single strand may be protected by RMSP or LMSP. Among them, SNCP is subnet connection protection, RMSP is ring multiplex section protection, and LMSP is linear multiplex section protection.

For non-SNCP chains, such as Section_NP1 and Section_NP2 in Figure 6, if the fiber is cut and there is no MSP protection or the MSP protection fails, the entire service will be interrupted. Among them, MSP is multiplex section protection.

For SNCP chains, such as Section_SNCP_W and Section_SNCP_P in Figure 6, if both chains are disconnected and there is no MSP protection or MSP protection fails, the service is interrupted; otherwise, the service is normal.

As shown in Figure 7, the steps of the specific fiber interruption-service impact algorithm include:

Step (a): reading the optical fiber path;

Step (b): Determine whether it is the last node, if it is the end, otherwise go to the next step;

Step (c): Determine whether there is an optical fiber interruption, if so, enter the next step, otherwise return to step (a) to continue reading the path;

Step (d): Determine whether there is MSP protection, if so, execute the MSP protection algorithm, update the path, return to step (a) to continue reading the path, otherwise enter the next step;

Step (e): Determine whether there is SNCP dual transmission. If it executes SNCP_W search, SNCP_P search and SNCP judgment in sequence, return to step (a) to continue reading the path after the execution is completed, otherwise it is an unprotected interruption. Among them, the SNCP_W search is the working path search, and the SNCP_P search is the protection path search.

Figure 8-10 is a schematic diagram of fiber interruption-service impact algorithm-RMSP impact. Figure 8 is a schematic diagram of the initial service state. The pass-through service, uplink service, and downlink service are represented by lines of different shades. Figure 9 is a schematic diagram of one-way interruption. MSP switching, the pass-through service of NE1 and the uplink and downlink services of the node can be protected normally, and the extra service of MSP is interrupted. Figure 10 is a schematic diagram of the bidirectional interruption situation. The MSP node of NE1 fails, and the pass-through service of NE1 is protected by NE2\4 switching.

Figure 11-15 is a schematic diagram of fiber interruption-service impact algorithm-LMSP protection & no protection impact. Figure 11-Figure 13 is a schematic diagram of LMSP protection. Fig. 11 is a schematic diagram showing the impact of service path interruption, LMSP switching, and normal service. Fig. 12 is a schematic diagram showing the influence of normal service without LMSP switching due to interruption of the protection path. Fig. 13 is a schematic diagram showing the influence of service interruption due to simultaneous interruption of the working path and protection path without switching of the LMSP. Figures 14-15 are schematic diagrams of non-segment-level protection. Fig. 14 is a schematic diagram showing the influence of normal optical fiber and normal service. Fig. 15 is a schematic diagram showing the impact of fiber interruption and service interruption.

As shown in Figure 16, the specific fiber interruption-alarm algorithm scenarios include:

① When the optical fiber is interrupted, the ports at both ends report the R_LOS alarm, and at the same time trigger MSP switching, and the network elements at both ends report the APS_INDI alarm

②The optical fiber of the SNCP working channel is interrupted, R_LOS alarms at both ends of the port, and there is no alarm for SNCP switching

③ The optical fiber of the unprotected path is interrupted, the service is interrupted, and the R_LOS alarm is reported at both ends. If it is a VC4 service, the downstream network element reports an AU_AIS alarm until the terminal node. If it is a VC3/VC12 service, the service is sent to the tributary board to report a TU_AIS alarm.

FIG. 17 is a schematic diagram of an alarm suppression tree within a board, and FIG. 18 is a schematic diagram of an alarm suppression tree between boards. According to the suppression principle of SDH alarms, high-level alarms will suppress low-level alarms and related downstream alarms in the station. The offline BD_SATUS alarm of the board will suppress all service alarms.

Pipe-off algorithm: traverse all network elements that interrupt the connection at both ends of the optical fiber, and start the graph traversal search. If the searched network element is a gateway network element, it will not be removed; traverse all line board ports, and exclude the following: 1) The peer network element of the port belongs to the traversed network element; 2) The DCC channel of the port is closed; 3 ) port is an interrupt fiber connection port. Port recursive traversal of the peer NE is not excluded. After the traversal search is completed, if no gateway NE is found, all NEs traversed this time are in the off-management state.

As shown in Figure 19, the failure of an optical fiber may cause some network elements to be disconnected (network elements are offline observed on the network management system). The detailed search flowchart of the off-pipe algorithm is shown in Figure 20. The steps of the specific fiber interruption-pipe removal algorithm include:

Step (a): State 1 = off tube;

Step (b): judging whether there are still unsearched network elements, if yes, traversing the network elements and entering the next step, otherwise entering step (h);

Step (c): judge whether it is an available gateway, if so, state 1=do not take off the tube, otherwise enter the next step;

Step (d): traversing network element line ports;

Step (e): Determine whether the opposite end has traversed the network element or the DCC channel is closed or the port is an invalid port, and if so, proceed to step (g); otherwise, proceed to the next step;

Step (f): recursively search for the peer network element;

Step (g): judging whether there is an untraversed port, if yes, state 1=do not take off, otherwise return to step (b);

Step (h): The state of all network elements traversed this time = state 1.

The simulated scenarios of board removal and network element power failure can be calculated in the manner equivalent to the interruption of multiple optical fibers in terms of service impact algorithms. As shown in Table 1 below.

Table 1

In step (3) of this embodiment, the output simulation results include a network topology for visually displaying the simulated fault and a calculated impact analysis result table. For the network topology of simulated faults, for example, offline network elements display gray icons, network elements with serious alarms display red icons, network elements with general alarms display yellow icons, interrupted optical fibers display red, and normal optical fibers display green icons. The presentation method is close to the operation Personnel perception is clear at a glance, which is helpful for users to understand calculation results. The impact analysis result table includes a service interruption statistics table, an affected network element statistics table, a newly added alarm statistics table, and a protection switching statistics table. This part of the data accurately describes the impact on the network, and maintenance personnel can formulate network maintenance plans based on this information.

Example 2:

The purpose of Embodiment 2 is to provide a computer-readable storage medium.

In order to achieve the above object, the present invention adopts the following technical scheme:

A computer-readable storage medium, in which a plurality of instructions are stored, and the instructions are adapted to be loaded by a processor of a terminal device and perform the following processing:

Step (1): Receive all the configuration data of the optical transmission network; establish the optical transmission network object and its corresponding simulation action and fault phenomenon library;

Step (2): Receive the selection instruction of the simulation object and the selection instruction of its corresponding simulation action, select the simulation object and its corresponding simulation action in the optical transmission network object and its corresponding simulation action, and the fault phenomenon library;

Step (3): Create a virtual machine based on the selected simulation object, simulate the selected simulation object and its corresponding simulation action, and perform network-level impact analysis according to the optical transmission network principle, and output the simulation result.

Example 3:

The purpose of Embodiment 3 is to provide a simulation device for an optical transmission network.

In order to achieve the above object, the present invention adopts the following technical scheme:

A simulation device for an optical transmission network, including a processor and a computer-readable storage medium, the processor is used to implement instructions; the computer-readable storage medium is used to store multiple instructions, and the instructions are suitable for being loaded and executed by the processor The following are processed:

Step (1): Receive all the configuration data of the optical transmission network; establish the optical transmission network object and its corresponding simulation action and fault phenomenon library;

Step (2): Receive the selection instruction of the simulation object and the selection instruction of its corresponding simulation action, select the simulation object and its corresponding simulation action in the optical transmission network object and its corresponding simulation action, and the fault phenomenon library;

Step (3): Create a virtual machine based on the selected simulation object, simulate the selected simulation object and its corresponding simulation action, and perform network-level impact analysis according to the optical transmission network principle, and output the simulation result.

These computer-executable instructions, when executed in a device, cause the device to perform the methods or processes described in accordance with various embodiments in the present disclosure.

In this embodiment, a computer program product may include a computer-readable storage medium carrying computer-readable program instructions for performing various aspects of the present disclosure. A computer readable storage medium may be a tangible device that can retain and store instructions for use by an instruction execution device. A computer readable storage medium may be, for example, but is not limited to, an electrical storage device, a magnetic storage device, an optical storage device, an electromagnetic storage device, a semiconductor storage device, or any suitable combination of the foregoing. More specific examples (a non-exhaustive list) of computer-readable storage media include: portable computer diskettes, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM), or flash memory), static random access memory (SRAM), compact disc read only memory (CD-ROM), digital versatile disc (DVD), memory stick, floppy disk, mechanically encoded device, such as a printer with instructions stored thereon A hole card or a raised structure in a groove, and any suitable combination of the above. As used herein, computer-readable storage media are not to be construed as transient signals per se, such as radio waves or other freely propagating electromagnetic waves, electromagnetic waves propagating through waveguides or other transmission media (e.g., pulses of light through fiber optic cables), or transmitted electrical signals.

Computer-readable program instructions described herein may be downloaded from a computer-readable storage medium to a respective computing/processing device, or downloaded to an external computer or external storage device over a network, such as the Internet, a local area network, a wide area network, and/or a wireless network. The network may include copper transmission cables, fiber optic transmission, wireless transmission, routers, firewalls, switches, gateway computers, and/or edge servers. A network adapter card or a network interface in each computing/processing device receives computer-readable program instructions from the network and forwards the computer-readable program instructions for storage in a computer-readable storage medium in each computing/processing device .

Computer program instructions for performing operations of the present disclosure may be assembly instructions, instruction set architecture (ISA) instructions, machine instructions, machine-dependent instructions, microcode, firmware instructions, state setting data, or in one or more programming languages source or object code written in any combination of programming languages, including object-oriented programming languages such as C++ and the like, and conventional procedural programming languages such as "C" or similar programming languages. Computer readable program instructions may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer, or entirely on the remote computer or server implement. In cases involving a remote computer, the remote computer can be connected to the user computer through any kind of network, including a local area network (LAN) or a wide area network (WAN), or it can be connected to an external computer (such as via the Internet using an Internet service provider). connect). In some embodiments, an electronic circuit, such as a programmable logic circuit, field programmable gate array (FPGA), or programmable logic array (PLA), can be customized by utilizing state information of computer-readable program instructions, which can Various aspects of the present disclosure are implemented by executing computer readable program instructions.

It should be noted that although several modules or sub-modules of the device have been mentioned in the above detailed description, this division is only exemplary and not mandatory. Actually, according to an embodiment of the present disclosure, the features and functions of two or more modules described above may be embodied in one module. Conversely, the features and functions of one module described above may be further divided to be embodied by a plurality of modules.

Beneficial effects of the present invention:

1. A method and device for simulating an optical transmission network according to the present invention. This method supports online import of system data, and the import is the configuration of the live network. The configuration data is complete and effective, and the operator is prevented from performing a large number of simulation scenarios/objects. structure, and the simulation is close to the real situation, and the simulation results are more realistic.

2. A method and device for simulating an optical transmission network according to the present invention. The simulation is a virtual overall network, and several virtual machines are started for each business object to perform network chain calculations. The entire calculation process has no effect on the existing network. any impact.

3. A simulation method and device for an optical transmission network according to the present invention, the simulation results are output and displayed in two ways: the network topology of the simulated fault and the calculated impact analysis result table, and the visualized network topology presentation method is close to Operator perception is clear at a glance, which is helpful for users to understand the calculation results; the data in the impact analysis result table accurately describes the impact of the network, and maintenance personnel can formulate network maintenance plans based on this information.

4. The method and device for simulating an optical transmission network according to the present invention can realize fault reproduction, operation verification and fault simulation. Through fault reproduction, it can simulate cracking of a certain performance index or software and hardware faults, and reproduce and analyze faults Fault phenomenon, locate the cause of the fault; through operation verification, verify the impact of a certain maintenance operation on the system, evaluate the impact, and assist in decision-making; through fault simulation, actively simulate a fault scenario in daily work to evaluate the impact on system operation.

5. The method and device for simulating an optical transmission network according to the present invention can accurately simulate the optical transmission network, affect reproduction, grasp opportunities, and avoid unsure battles.

The above descriptions are only preferred embodiments of the present application, and are not intended to limit the present application. For those skilled in the art, there may be various modifications and changes in the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of this application shall be included within the protection scope of this application. Therefore, the present invention will not 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 kind of analog simulation method of optical transport network, which is characterized in that this method includes：

Receive whole configuration datas of optical transport network；It is existing to establish optical transport network object simulated action corresponding with its, failure As library；

The selection instruction for receiving selection instruction simulated action corresponding with its of simulated object is right with its in optical transport network object Selection simulated object simulated action corresponding with its in the simulated action answered, phenomenon of the failure library；

Virtual machine is established according to the simulated object of selection, the simulated object of selection simulated action corresponding with its is emulated, And the impact analysis of network level is carried out according to optical transport network principle, export analog simulation result.

2. the method as described in claim 1, which is characterized in that in the method, establish optical transport network object and its correspondence Simulated action, phenomenon of the failure library, and in optical transport network object simulated action corresponding with its, phenomenon of the failure library establish pair As, the correspondence of simulated action, phenomenon of the failure and topological relation.

3. the method as described in claim 1, which is characterized in that in optical transport network object simulated action corresponding with its, event Hindering in phenomenon library, the object is the operable component in optical transport network, including：Webmaster, network element, veneer, optical cable, optical fiber, Tail optical fiber, power supply and the service of connection devices.

4. the method as described in claim 1, which is characterized in that in optical transport network object simulated action corresponding with its, event Hinder in phenomenon library, the simulated action includes：Network element power down, power interruptions, veneer plate, veneer pull out plate, single board default, optical fiber It interrupts, tail optical fiber is disconnected, tail optical fiber poor contact, tail optical fiber bending are excessive, power jitter, node failure and input clock drift.

5. the method as described in claim 1, which is characterized in that in optical transport network object simulated action corresponding with its, event Hinder in phenomenon library, the phenomenon of the failure includes：Alarm, error code, it is offline, switch, interrupt, de- pipe, event, performance and wrong company.

6. the method as described in claim 1, which is characterized in that in the method, every service analogue object starts several Virtual machine, for simulating different simulated objects, virtual machine includes network element virtual machine and/or optical fiber virtual machine, and the network element is empty Quasi- machine is used to indicate the network element in physical network, including different veneer objects, protection protocol emulation machine, and mould is calculated for simulating The reaction and output of system under quasi- scene；The optical fiber virtual machine is used to indicate the optical fiber in physical network.

7. the method as described in claim 1, which is characterized in that in the method, the analog simulation result of output includes visual Change the impact analysis result table of the network topology and calculating of displaying simulated failure.

8. the method for claim 7, which is characterized in that in the method, the impact analysis result table includes business It interrupts statistical form, influence network element statistical form, newly-increased alarm statistics table, pretection switch statistical form.

9. a kind of computer readable storage medium, wherein being stored with a plurality of instruction, which is characterized in that described instruction is suitable for by terminal The processor of equipment loads and executes the method according to any one of claim 1-8.

10. a kind of terminal device, including processor and computer readable storage medium, processor is for realizing each instruction；It calculates Machine readable storage medium storing program for executing is for storing a plurality of instruction, which is characterized in that described instruction is appointed for executing according in claim 1-8 Method described in one.