CN116801140A

CN116801140A - Transmission path updating method and device, equipment and storage medium

Info

Publication number: CN116801140A
Application number: CN202310833162.2A
Authority: CN
Inventors: 姜先荣; 胡全舟; 许健荣; 杨炜杰; 刘翠
Original assignee: China Telecom Technology Innovation Center; China Telecom Corp Ltd
Current assignee: China Telecom Technology Innovation Center; China Telecom Corp Ltd
Priority date: 2023-07-07
Filing date: 2023-07-07
Publication date: 2023-09-22

Abstract

The application discloses a transmission path updating method, a device, equipment and a storage medium, which relate to the technical field of optical transmission networks, and start iterative execution detection processing from a transmission port included in a target route object in a target transmission path to be updated, wherein each detection processing is to determine a next hop port based on a first object type of a current detection object and a signal level of the current detection port, determine whether the next hop port meets a preset serial connection condition, and if the preset serial connection condition is not met and the current detection port meets a termination port condition, determine that the current detection port is a termination port, stop iteration of the detection processing, and update the target transmission path according to the obtained termination port. If the next hop port meets the preset serial connection condition, the next hop port and the route object thereof are respectively used as the current detection port and the current detection object of the next detection process, and the detection process is continuously executed in an iterated manner so as to improve the updating efficiency of the transmission path of the optical transmission network.

Description

Transmission path updating method and device, equipment and storage medium

Technical Field

The present application relates to the field of optical transmission networks, and in particular, to a method and apparatus for updating a transmission path, a device, and a storage medium.

Background

Through the regional rolling construction of the optical transmission network for many years, a network structure that new and old devices of different manufacturers, different systems and different management areas are communicated with each other is formed, and the management of the transmission paths of signals in the optical transmission network is a basis for realizing the service functions of end-to-end network alarm management, performance management, operation and maintenance management and the like.

In the operation of the optical transmission network, when network configuration of the optical transmission network is changed, for example, in order to adapt to the change of network environment or realize specific service requirements, new ports are required to be added, the routing mode of signals is changed, and the network topology structure is adjusted, parameters such as a transmission path, a port connection relation, a routing object and the like in the optical transmission network are required to be changed, and the new signal transmission path is updated or established in time, so that new signal routing is realized or normal signal transmission is recovered, the end-to-end network operation requirement in the optical transmission network is met, and the normal operation and performance optimization of the network are ensured.

The related art aims at network configuration change of an optical transmission network, and needs to manually adjust physical layer equipment, so that a new signal transmission path is generated on the basis of configuration of the physical layer equipment, and the operation is complex and the manual error rate is high. Therefore, how to update the signal transmission path quickly and accurately is a problem to be solved.

Disclosure of Invention

The embodiment of the application provides a transmission path updating method, a transmission path updating device, transmission path updating equipment and a storage medium, which are used for improving the efficiency and the accuracy of transmission path updating of an optical transmission network.

In one aspect, there is provided a transmission path updating method, the method including:

starting from a transmission port included in a target route object in a target transmission path to be updated, iteratively executing detection processing until a termination port is determined; wherein each detection process includes:

determining a next hop port of the transmission port based on a first object type to which the current detection object belongs and a signal level of the current detection port; in the first detection process, the current detection object is the target routing object, and the current detection port is the transmission port;

determining whether the next hop port meets a preset serial connection condition;

if the next hop port does not meet the preset serial connection condition and the current detection port meets the termination port condition, determining that the current detection port is the termination port;

if the next hop port meets the preset serial connection condition, taking the target candidate route object of the next hop port as a current detection object of next detection processing, and taking the next hop port as a current detection port of next detection processing;

And updating the target transmission path based on the obtained terminal port.

In one aspect, there is provided a transmission path updating apparatus, the apparatus including:

the detection processing unit is used for starting from a transmission port included in a target route object in a target transmission path to be updated, and iteratively executing detection processing until a termination port is determined;

the detection processing unit comprises a port determination subunit, a serial connection detection subunit, a termination detection subunit and an iteration determination subunit, wherein:

the port determining subunit is configured to determine a next hop port of the transmission port based on a first object type to which the current detection object belongs and a signal level of the current detection port; in the first detection process, the current detection object is the target routing object, and the current detection port is the transmission port;

the serial detection subunit is configured to determine whether the next hop port meets a preset serial condition;

the termination detection subunit is configured to determine, if the next hop port does not meet the preset concatenation condition and the current detection port meets a termination port condition, that the current detection port is the termination port;

The iteration determining subunit is configured to take the target candidate routing object of the next hop port as a current detection object of next detection processing and take the next hop port as a current detection port of next detection processing if the next hop port meets the preset concatenation condition;

a path updating unit, configured to update the target transmission path based on the obtained termination port;

optionally, the termination port condition includes any one of the following conditions:

the signal level of the current detection port belongs to an upper signal level, and the port belonging to the upper signal level is directly connected with a service entity of a client layer;

the signal level of at least one client layer sub-port belongs to the upper layer signal level in the client layer sub-ports corresponding to the current detection port, and the client layer sub-ports are logical sub-ports of the physical ports corresponding to the current detection port in the client layer signal level;

the at least one client layer sub-port is provided with configuration object parameters, and the configuration object parameters are used for the communication between the client layer sub-port and a service entity of a client layer;

the current detection port is provided with a binding object parameter, and the binding object parameter characterizes that the current detection port is associated with at least one network resource;

The at least one client layer sub-port has set the binding object parameters;

and the number of the client layer sub-ports of different client layer signal levels corresponding to the current detection port exceeds a preset threshold.

Optionally, the port determining subunit is specifically configured to:

acquiring a candidate next hop port set of a corresponding signal hierarchy type based on the first object type;

determining a candidate signal level set based on the candidate next hop port set, wherein the candidate signal level set comprises candidate signal levels of each candidate next hop port in the candidate next hop port set;

determining a target signal level corresponding to the next hop port from the candidate signal level set according to the signal level of the current detection port and a signal level relation table; wherein, each signal level in the signal level relation table is orderly arranged from small to large according to the level of each level and the sequence number in the layer;

and determining the next hop port from the candidate next hop port set based on the target signal level corresponding to the next hop port.

Optionally, the port determining subunit is specifically configured to:

Determining a second candidate signal level set meeting a first preset level condition from the first candidate signal level set based on the signal level relation table, wherein the first preset level condition is that the signal level of the second candidate signal level is smaller than the signal level of the current detection port, or the signal level of the second candidate signal level is the same as the signal level of the current detection port, and the layer sequence number is smaller than the layer sequence number of the current detection port;

and sequencing each second candidate signal level in the second candidate signal level set according to the signal level and the sequence from the high level to the low level of the layer sequence number, and taking the second candidate level with the highest sequencing as the target signal level.

Optionally, the port determining subunit is specifically configured to:

determining a third candidate signal level set meeting a second preset level condition from the first candidate signal level set based on the signal level relation table, wherein the second preset level condition is that the signal level of the third candidate signal level is greater than the signal level of the current detection port, or the signal level of the third candidate signal level is the same as the signal level of the current detection port, and the layer sequence number is greater than the layer sequence number of the current detection port;

And sequencing each third candidate signal level in the third candidate signal level set according to the signal level and the sequence from the small layer sequence number to the large layer sequence number, and taking the third candidate level with the highest sequencing as the target signal level.

Optionally, the tandem detection subunit is specifically configured to:

selecting at least one candidate route object of a second object type different from the first object type from a plurality of route objects containing the next hop port;

determining whether a candidate route object which has an intersection with a port included by the current detection object and has the same signal level as the current detection object exists in the at least one candidate route object;

if the port does not exist, determining that the next hop port does not meet the preset serial connection condition; if yes, determining that the next hop port meets the preset tandem connection condition.

In one aspect, a computer device is provided comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the steps of any of the methods described above when the computer program is executed.

In one aspect, there is provided a computer storage medium having stored thereon computer program instructions which, when executed by a processor, perform the steps of any of the methods described above.

In one aspect, a computer program product or computer program is provided, the computer program product or computer program comprising computer instructions stored in a computer readable storage medium. The computer instructions are read from a computer-readable storage medium by a processor of a computer device, and executed by the processor, cause the computer device to perform the steps of any of the methods described above.

The embodiment of the application has the following beneficial effects:

in the embodiment of the application, by starting from a transmission port included in a target routing object in a target transmission path to be updated, iteratively executing detection processing, wherein each detection processing comprises determining a next hop port of the transmission port based on a first object type to which a current detection object belongs and a signal level of the current detection port, determining whether the next hop port meets a preset concatenation condition, if the next hop port does not meet the preset concatenation condition and the current detection port meets a termination port condition, determining that the current detection port is the termination port, stopping iteration of the detection processing, and updating the target transmission path according to the obtained termination port. And if the next hop port meets the preset serial connection condition, taking the target candidate route object of the next hop port as the current detection object of the next detection process, taking the next hop port as the current detection port of the next detection process, and continuing to iteratively execute the next detection process.

In the method, the serial connection of the transmission paths and the detection processing of the termination ports are carried out iteratively, the next hop port of the transmission paths is determined according to the routing object type of each detection object and the signal level of the detection port in each iteration processing, and whether the ports meet the serial connection condition of the transmission paths and whether the ports are the termination ports is judged when the next hop port is determined, so that the updating accuracy of the transmission paths is ensured, and the error path updating is avoided. Compared with the traditional method that the physical layer equipment is manually configured to determine the port information of each hop, the method and the device update the transmission path in an automatic mode, the port concatenation of the whole transmission path is completely driven by the configuration parameters of the port and the routing object, so that the port of the next hop and the terminal port can be accurately determined, the subjectivity of manual judgment is avoided, the possibility of updating errors of the transmission path is reduced, and the accuracy of path updating is improved. And the end-to-end concatenation of the whole transmission path can be rapidly completed, the updating efficiency of the transmission path of the optical transmission network is improved, and the time and labor cost of manual operation are reduced.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the related art, the drawings that are required to be used in the embodiments or the related technical descriptions will be briefly described, and it is apparent that the drawings in the following description are only embodiments of the present application, and other drawings may be obtained according to the provided drawings without inventive effort for those skilled in the art.

Fig. 1 is a schematic view of an application scenario provided in an embodiment of the present application;

fig. 2 is a system architecture diagram of a path updating device according to an embodiment of the present application;

FIG. 3 is a schematic diagram of a conventional signal level management model according to an embodiment of the present application;

fig. 4 is a flow chart of a transmission path updating method according to an embodiment of the present application;

fig. 5 is a flowchart of a method for determining a termination port according to an embodiment of the present application;

fig. 6 is a flowchart of a method for determining a termination port according to an embodiment of the present application;

fig. 7 is a flowchart of another transmission path updating method according to an embodiment of the present application;

Fig. 8 is a schematic structural diagram of a transmission path updating apparatus according to an embodiment of the present application;

fig. 9 is a schematic diagram of a composition structure of a computer device according to an embodiment of the present application.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present application more apparent, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application. Embodiments of the application and features of the embodiments may be combined with one another arbitrarily without conflict. Also, while a logical order is depicted in the flowchart, in some cases, the steps depicted or described may be performed in a different order than presented herein.

In order to facilitate understanding of the technical solution provided by the embodiments of the present application, some key terms used in the embodiments of the present application are explained here:

Optical transmission network: the communication network based on the optical fiber technology uses the optical fiber as a transmission medium to encode and transmit information in an optical form, is used for transmitting optical signals to realize data transmission in a high-speed and long-distance range, and has the advantages of high bandwidth, low attenuation, interference resistance and the like. The optical signal can transmit different types of data, including voice, image, video, internet data and the like, and in an optical transmission network, the optical signal is transmitted through an optical fiber, enhanced and converted through devices such as an optical amplifier, a photoelectric converter and the like, and finally reaches a target place.

Signal hierarchy: in order to meet different application requirements and service levels, signals are layered and classified in an optical transmission network, so that different signals are independently managed, controlled and transmitted. The signal hierarchy type indicates the hierarchy type to which the signal stream belongs, and common signal hierarchies include an optical transport network (Optical Transport Network, OTN), a synchronous digital hierarchy (Synchronous Digital Hierarchy, SDH), ethernet, and the like.

Routing objects: is a routing path and channel in an optical transmission network used to represent a signal flow in the network, i.e. a transmission path from a source end to a destination end. The routing object contains routing information related to signal streaming including intermediate nodes, fiber links, cross-connects, ports, hierarchical types, etc. The routing objects can be classified into two types, a connection object for describing a connection relationship in the service layer network and a routing configuration object for representing information of network configuration.

Connection object: the service layer connection object is also called as a service layer connection object type, and is used for describing a connection relation in a service layer network, and comprises a service layer signal level port and information of a signal level type, wherein the service layer connection object can be used for indicating a path and a channel for transmitting a signal flow from one service layer device to another service layer device, and comprises a subnet connection (Subnetwork Connection, SNC) object and a Topology Link (TL) object, and different service layer connection objects have different characteristics, such as a bandwidth requirement, a service quality requirement, a point-to-point or multi-point connection type and the like.

Route configuration object: for configuring and managing various functions and features of the network, configuration objects define and control transmission paths of signal flows, adjust characteristics of signals, and provide fault recovery and protection mechanisms, common routing configuration objects include Cross Connection (CC) objects, port Protection Group (PG) objects, matrix watershed segments (Multi-Functional Digital Filter and Reconfigurator, MFDFr), and Binding (Binding) objects.

CC object: is a routing configuration object in an optical transmission network for implementing cross-connection of signal flows, and can route signals from an input port to one or more output ports, so as to change the transmission path of the signals, and the CC object is commonly used for flexible signal routing and reconfiguration between nodes in the optical transmission network.

PG object: the PG object is used for coping with fault conditions such as optical fiber breakage, equipment fault and the like, and ensures reliable transmission and continuity of signals.

MFDFR object: the MFDFR object is a routing configuration object in an optical transmission network for digitally filtering and reconstructing signals. The MFDFR object is commonly used for functions such as modulation, demodulation, equalization, repair, etc. of signals.

Binding object: a Binding object is a routing configuration object in an optical transport network that binds together different network resources and elements to form a particular connection or path. It can associate service layer connection objects, network devices, ports, etc. to achieve flexible network configuration and resource management. Binding objects are often used to define and track connection relationships in a network, ensuring that signal streams are transported and handled in the network in a desired manner.

Signal transmission path: the core of the end-to-end management of the service of the optical transmission network is to manage the optical network layering channel and the signal flow route, which is the basis for realizing the functions of end-to-end network alarm management, performance management, operation and maintenance management and the like. The network layering channel is an end-to-end signal transmission channel which consists of terminal ports at two ends of a signal flow, signal layers at which the signal flow is transmitted and routing objects, the signal flow is alternately composed of different types of routing objects such as a service layer connection object, a routing configuration object and the like, the signal flow connected to the terminal ports at two ends is provided with a physical transmission channel, the signal flow determines an actual transmission path of data on the network layering channel, the terminal ports respectively represent a starting point and an ending point of the signal flow, and the different signal layers represent different optical signal transmission characteristics, transmission rates or transmission protocols.

Dynamic rerouting: a network route management technique for automatically adjusting the path of a data flow in a network to cope with network failure or congestion conditions. In conventional static routing, the routing paths of the network are pre-configured and do not adjust to real-time network conditions, while in order to achieve high reliability, high performance and optimized data transmission of the network, dynamic rerouting techniques allow routers in the network to dynamically select the best paths to forward data based on real-time network conditions and various metrics.

The following briefly describes the design concept of the embodiment of the present application:

The related art aims at network configuration change of an optical transmission network, and needs to manually adjust physical layer equipment, so that a new signal transmission path is generated based on the configuration of the physical layer equipment, which has the disadvantages of complex operation and high error rate, and therefore, how to quickly and accurately update the signal transmission path is a problem to be solved.

In view of the foregoing, an embodiment of the present application provides a method for updating a transmission path, by starting from a transmission port included in a target routing object in a target transmission path to be updated, performing detection processing iteratively, where each detection processing includes determining a next hop port of the transmission port based on a first object type to which a current detection object belongs and a signal level of the current detection port, determining whether the next hop port meets a preset concatenation condition, if the next hop port does not meet the preset concatenation condition, and if the current detection port meets a termination port condition, determining that the current detection port is a termination port, stopping iteration of the detection processing, and updating the target transmission path according to the obtained termination port. And if the next hop port meets the preset serial connection condition, taking the target candidate route object of the next hop port as the current detection object of the next detection process, taking the next hop port as the current detection port of the next detection process, and continuing to iteratively execute the next detection process.

In the method, the serial connection of the transmission paths and the detection processing of the termination ports are carried out through iteration, the next hop port of the transmission paths is determined according to the routing object type of each detection object and the signal level of the detection port in each iteration, and whether the ports meet the serial connection condition of the transmission paths and whether the ports are the termination ports or not is judged when the next hop port is determined, so that the updating accuracy of the transmission paths is ensured, and the error path updating is avoided. Compared with the traditional method that the physical layer equipment is manually configured to determine the port information of each hop, the method and the device update the transmission path in an automatic mode, the port concatenation of the whole transmission path is completely driven by the configuration parameters of the port and the routing object, so that the port of the next hop and the terminal port can be accurately determined, the subjectivity of manual judgment is avoided, the possibility of updating errors of the transmission path is reduced, and the accuracy of path updating is improved. And the end-to-end concatenation of the whole transmission path can be rapidly completed, the updating efficiency of the transmission path of the optical transmission network is improved, and the time and labor cost of manual operation are reduced.

In order to further improve the updating efficiency and accuracy of the transmission path of the optical transmission network, the embodiment of the application also uniformly models different optical transmission technology systems, different optical transmission service bearing modes, signal levels corresponding to different signal types such as digital signals and optical signals and complex bearing relations among different signal levels in the existing optical transmission network, establishes a signal level relation table, enables different signal levels to be arranged according to respective signal level levels and layer sequence numbers, visually presents the complex signal level relation, enables the complex signal level relation to be positioned to a target signal level more accurately and rapidly, simplifies the process of searching ports of different signal levels such as a client layer, a service layer and the like, and further improves the updating efficiency and accuracy of the transmission path.

In order to further improve the updating efficiency and accuracy of the transmission path of the optical transmission network, the embodiment of the application also provides that whether the port is a terminal port is judged according to the terminal port condition, the terminal port condition for judging whether the port is terminal is summarized according to the signal hierarchy relation and the service configuration mode of the optical transmission network, the judging process of whether the port signal is terminal is simplified through the preset rule, the complex judgment is not required to be independently carried out for each port manually, the terminal port is determined according to the unified rule, the complexity and the error possibility of the judgment of the terminal port are greatly reduced, the accuracy and the efficiency of the judgment of the terminal port are improved, the terminal port can be more rapidly and accurately determined, and the updating efficiency and the updating accuracy of the transmission path of the optical transmission network are further improved.

The following description is made for some simple descriptions of application scenarios applicable to the technical solution of the embodiment of the present application, and it should be noted that the application scenarios described below are only used for illustrating the embodiment of the present application, but not limiting. In the specific implementation process, the technical scheme provided by the embodiment of the application can be flexibly applied according to actual needs.

The technical solution provided in the embodiment of the present application may be suitable for updating scenarios of various transmission paths in an optical transmission network, as shown in fig. 1, which is a schematic diagram of an application scenario provided in the embodiment of the present application, where the scenario may include a path updating device 100 and an optical transmission network 120 composed of a plurality of path relay devices 110.

In a possible implementation manner, the path updating device 100 may be a computer device with a certain processing capability, for example, a mobile phone, a personal computer (personal computer, PC), a server, or any one of the devices that can be configured to perform the method provided by the embodiment of the present application, which is not listed here. For convenience of description, hereinafter, embodiments of the method will be described taking an execution subject of the method as a server capable of executing the method as an example. It will be appreciated that the subject matter of the method being performed by the server is merely an exemplary illustration and should not be construed as limiting the method. The server may be an independent physical server, a server cluster or a distributed system formed by a plurality of physical servers, or a cloud server providing cloud services, cloud databases, cloud computing, cloud functions, cloud storage, network services, cloud communication, middleware services, domain name services, security services, CDNs, basic cloud computing services such as big data and artificial intelligence platforms, but is not limited thereto.

The optical transmission network 120 is responsible for transmitting an optical signal from one end terminal port to the other end terminal port of the transmission path, so as to realize reliable transmission of the optical signal, where the transmission path of the optical transmission network 120 is composed of a plurality of path relay devices 110 connected to each other, and the path relay devices 110 may be a detection object and a computer device corresponding to the detection port, such as a server, a router, a gateway device, etc., for which the transmission path updating method provided by the embodiment of the present application is directed.

The path updating device 100 can iteratively perform detection processing according to the target routing object and the corresponding transmission port corresponding to each path relay device 110 in the optical transmission network 120, based on the transmission path updating method provided by the embodiment of the present application, until the terminal port of the transmission path of the optical transmission network 120 is determined, and update the transmission path according to the determined terminal ports at both ends.

The path update device 100 and each device in the optical transmission network 120 may be connected through a network 130, where the network 130 may be a wired network, or may be a Wireless network, for example, a Wireless network may be a mobile cellular network, for example, a fourth generation (4 g) network, a fifth generation (5 g) network, or a New Radio (NR) network, or may be a Wireless-Fidelity (WIFI) network, or may be other possible networks, which embodiments of the present application are not limited in this respect.

It should be noted that, the number of the path updating device and the path relay device is not limited in practice, and the embodiment of the present application is not limited specifically.

As shown in fig. 2, a system architecture diagram of a path updating device according to an embodiment of the present application may include the following modules:

(1) The data acquisition module 101 is configured to acquire related data of each routing object and the transmission port in the transmission path and send the related data to the storage monitoring module.

(2) The storage listening module 102 includes a data listening sub-module 1021 and a data storage sub-module 1022. The data listening sub-module 1021 is configured to detect whether data such as configuration parameters of a current transmission path change, and generate a corresponding path change message to send to the reverse concatenation module. The data storage sub-module 1022 is configured to receive and store the related data of the transmission path sent by the data acquisition module, and updated transmission path information sent by the path concatenation module.

(1) The path updating module 103 is configured to receive the path change message, trigger a transmission path updating flow, update the transmission path by determining information such as a next hop port and a termination port, and send updated transmission path information to the data storage module.

It should be noted that the components and structures of the functional block diagram shown in fig. 2 are merely exemplary and not limiting, and that other components and structures may be provided as desired in a practical scenario.

The transmission path updating method provided by the exemplary embodiment of the present application will be described below with reference to the accompanying drawings in conjunction with the application scenario described above, and it should be noted that the application scenario described above is only shown for the convenience of understanding the spirit and principle of the present application, and the embodiment of the present application is not limited in any way in this respect.

The process of updating the transmission path in the embodiment of the present application is implemented according to the signal hierarchy table created in advance, so the process of creating the signal hierarchy table in the embodiment of the present application will be described first.

Referring to fig. 3, which shows a signal level management model in an existing optical transmission network, it should be noted that the signal level management model is formulated based on a standard protocol, for example, a telecommunication management forum 814 standard (TeleManagement Forum, tmf 814) protocol, an international telecommunication union telecommunication standardization sector g.7041 universal frame structure procedure/g.7042link capacity adjustment scheme (International Telecommunication Union Telecommunication Standardization Sector g.7041generic Framing Procedure/g.7042link Capacity Adjustment Scheme) protocol, an international telecommunication union telecommunication standardization sector g.707synchronous digital hierarchy (International Telecommunication Union Telecommunication Standardization Sector g.707synchronous Digital Hierarchy) protocol, an international telecommunication union telecommunication standardization sector g.707synchronous digital hierarchy (International Telecommunication Union Telecommunication Standardization Sector g.707synchronous Digital Hierarchy) protocol, an international telecommunication union telecommunication standardization sector g.7041 universal frame structure procedure/g.7042link capacity adjustment scheme (International Telecommunication Union Telecommunication Standardization Sector g.7092 g.7087/International Telecommunication Union Telecommunication Standardization Sector g.70 Capacity Adjustment Scheme) protocol, an international telecommunication union telecommunication standardization sector g.709optical transmission network (optical transmission network International Telecommunication Union Telecommunication Standardization Sector h 7023), the ITU-T G.709OTN protocol and the International telecommunication Union telecommunication standardization sector G.8110.1 packet transport network (International Telecommunication Union Telecommunication Standardization Sector G.8110.1 (Packet Transport Network, ITU-T G.8110.1 PTN) protocol define, but the embodiment of the application is not limited to the protocol employed, and is equally applicable to the rest of the protocols because of the existence of different optical transport technology systems, different optical transport service carrying modes, and the like in the existing signal hierarchy management model, and a plurality of signal layers corresponding to different signal types such as digital signals, optical signals and the like, and the bearing relation among the different signal layers is staggered and complex. Therefore, referring to the signal hierarchy relation table shown in table 1 below, in order to more accurately and rapidly locate a target signal hierarchy, the present application builds unified modeling on signal hierarchies with various types and complex bearing relations, and establishes a signal hierarchy relation table.

TABLE 1

In the signal hierarchy relation table shown in table 1, each signal hierarchy has a respective hierarchy attribute such as a signal hierarchy name, a signal hierarchy abbreviation, a signal hierarchy level, and a layer sequence number, and is ordered according to the respective signal hierarchy level size and layer sequence number size. Wherein the signal hierarchy names represent specific names of various signal hierarchies in the optical transmission network, and are used for distinguishing different signal hierarchies. The signal level abbreviations correspond to the abbreviations or acronyms for each signal level. In the signal hierarchy relationship provided by the embodiment of the application, each signal hierarchy from top to bottom in the optical fiber connection to the pseudo wire belongs to the service layer signal hierarchy, and each signal hierarchy from top to bottom in the ETH service from the client signal belongs to the client layer signal hierarchy. The signal hierarchy level is a level or order used to mark each signal hierarchy in the service layer and the client layer in the hierarchy of the overall signal hierarchy relationship table. The smaller the signal level, the more forward the signal level is in the signal level relation table, which indicates that the signal level is closer to the service layer, whereas the larger the signal level is, the more backward the signal level is in the signal level relation table, which indicates that the signal level is closer to the client layer. The intra-layer sequence numbers are used to distinguish different signal layers at the same signal layer level. On the premise of the same signal level, the smaller the layer sequence number of the signal level is, the more the position in the signal level relation table is, the closer the signal level is to the service layer, otherwise, the larger the layer sequence number of the signal level is, the more the position of the signal level in the signal level relation table is, the more the signal level is close to the client layer.

The following describes each signal level in the signal level relation table provided by the embodiment of the present application:

fiber optic connection (TL): refers to the physical fiber connection between two nodes and is the most basic signal transmission unit.

Optical transmission section (Optical Transport Section, OTS): units of optical fiber connections are segmented in an optical transmission network for carrying optical signals.

Optical multiplexing section (Optical Multiplex Section, OMS): the segment in which the optical signals of the plurality of optical transmission segments are multiplexed is used to improve the utilization of the optical fiber.

Optical Channel (OCH): in an optical transmission network, a plurality of optical channels may be multiplexed with a channel for carrying an optical signal.

Optical transmission unit (Optical Transport Unit, OTU): the transmission units used for carrying optical signals in the optical transmission network can be further divided into optical transmission units respectively carrying optical signals with different rates, such as OTU0, OTU1, OTU2e, OTU3, OTU4, OTU25G, OTUC, OTUC4, etc.

Optical data unit (Optical Data Unit, ODU): is a data unit in an optical transport network for carrying and transporting various types of optical data, such as ethernet frames, SDH transport units, OTN transport units, etc. The ODU may be further divided into multiple levels according to different carrying capacities and signal levels, including ODUC4, ODUC2, ODU5G, ODU, ODU3, ODU2e, ODU1, ODU0, and ODUFlex, which are respectively used to carry optical signals at different rates.

Regeneration section (Regenerator Section, RS): the optical signal receiving device is used for recovering and amplifying the intensity of the signal in the signal transmission process, the regeneration section is usually positioned in the middle of the transmission path, and the optical signal in the transmission process is received, regenerated and amplified and recovered by the clock again, so that the signal can be continuously transmitted and keep good quality, and the attenuation and distortion of the compensation signal in the transmission process are realized. The regeneration section comprises different levels of RS-1, RS-4, RS-16 and RS-64 and is used for recovering and amplifying different levels of optical signals of the RS-1 level, the RS-4 level, the RS-16 level and the RS-64 level respectively.

Multiplexing section (Multiplex Section, MS): for multiplexing and centrally transmitting a plurality of signals, the multiplexing section is responsible for combining and distributing signals from different sources and transmitting the signals to a target location through an optical fiber. The multiplexing sections of different levels of MS-1, MS-4, MS-16 and MS-64 are respectively used for multiplexing a plurality of optical signals of MS-1 level, MS-4 level, MS-16 level and MS-64 level.

Virtual container 4higher order path (Virtual Container 4Higher Order Path,AU4): an SDH network defines a transport path with a fixed capacity and transport rate for carrying and transporting high order signal streams and containers of a large number of low order transport units such as VC3 and VC 12.

Virtual container 4service layer path (Virtual Container 4Service Layer Path,VC4): an SDH network defines a transport path for providing a specific communication service. VC4 builds on top of AU4, using transport capabilities for transporting specific traffic or applications.

Virtual container 3 low-order path (Virtual Container 3Lower Order Path,VC3): is one of the basic transport units of an SDH network for carrying and transporting lower order communication signals, lower rate data streams. The capacity and transmission rate of the VC 3lower order path are relatively small and are typically used to carry smaller scale traffic such as voice communications and low speed data transmissions.

Virtual container12 low Order Path (Virtual Container Lower Order Path, VC 12): is the smallest transport unit in an SDH network for carrying and transporting lower order communication signals, lower rate data streams. The capacity and transmission rate of the VC12 low-order path are smaller than those of the VC3 low-order path, and are typically used to carry individual communication paths or specific applications such as sms, fax, etc.

Ethernet service layer (Ethernet Service Layer, ETH): the signal flow used for bearing and transmitting the Ethernet is responsible for processing the functions of physical connection, transmission of data frames, address allocation, routing of data packets and the like.

Label switched path (Label Switched Path, LSP): a path for transmitting data packets in a label switched network.

Pseudowire (PW): virtual wires used in data communications to simulate conventional circuit switched services.

Client Signal (Client): representing a signal stream from a client, typically a traffic-plane signal.

Quasi-synchronous digital hierarchy (Plesiochronous Digital Hierarchy, PDH): representing various signal levels in the clock-synchronized digital hierarchy, including a PDH-E1 level, a PDH-E3/T3 level, and a PDH-E4 level, for transmitting different rates of digital signals at low, medium, and high rates, respectively.

Ethernet Service layer (FDFR): the system is built on an Ethernet service layer, provides specific applications and services, and meets specific requirements and business requirements of users.

The embodiment of the application considers that a multipole multiplexing scene may exist in signal levels such as optical data units (Optical Data Unit, ODU), that is, a plurality of optical data units or other signals at the same signal level are combined and transmitted on the same optical fiber through multiplexing technology. In this scenario, it is difficult to distinguish and de-multiplex the multiple signals only with the signal hierarchy level, resulting in difficulty for the receiving end to correctly restore each signal. Therefore, the embodiment of the application respectively assigns the layer sequence numbers with different sizes to a plurality of signal layers, such as the optical data unit, which are positioned at the same signal layer level. In the same signal hierarchy level, the smaller the layer sequence number of the signal hierarchy, the more forward the position in the signal hierarchy relation table, the closer the signal hierarchy is to the service layer, whereas the larger the layer sequence number of the signal hierarchy, the more backward the position of the signal hierarchy in the signal hierarchy relation table, the closer the signal hierarchy is to the client layer. The signal hierarchy relation table of the embodiment of the application provides a structured and visual mode to manage the signal hierarchy relation of the optical transmission network, and by defining different levels, in-layer serial numbers and other attributes for different signal hierarchies, the recognition process of the signal hierarchies is simplified, so that the target signal hierarchy can be quickly searched and positioned, and the updating efficiency and accuracy of a transmission path are improved.

Specifically, taking three optical data unit signals of ODU1, ODU2 and ODU3 as an example, in order to perform multipolar multiplexing, the three optical data unit signals are combined by a multiplexing technology and transmitted on the same optical fiber. According to the signal hierarchical relationship table provided by the embodiment of the application, the sending end distributes respective corresponding intra-layer sequence numbers for the three optical data unit information, for example, the intra-layer sequence number of ODU1 is 8, the intra-layer sequence number of ODU2 is 7, and the intra-layer sequence number of ODU3 is 6, so that the receiving end can correctly de-multiplex the combined signals and restore the combined signals to the original three signals.

Referring to fig. 4, a flow chart of a transmission path updating method provided by an embodiment of the present application is shown, and an execution body of the method may be the path updating device shown in fig. 1 or fig. 2, and a specific implementation flow of the method is as follows:

step 401: and starting from a transmission port included in the target route object in the target transmission path to be updated, iteratively executing detection processing until a termination port is determined.

In the embodiment of the application, when the network configuration of the target transmission path is changed, equipment failure occurs, or a dynamic rerouting function of a service is started, the change of the transmission path is triggered, the target transmission path needs to be updated, a route object corresponding to a port closest to the port with the configuration change or the failure in the target transmission path to be updated can be selected as a target route object, and any route object which can be continuously and normally used in the transmission path can also be directly selected as the target route object.

In the embodiment of the present application, since the process of each iterative detection is similar, a detection process is described here as an example.

Step 4011: and determining a next hop port of the transmission port based on the first object type of the current detection object and the signal level of the current detection port.

In the embodiment of the application, the current detection object is the target route object during the first detection processing, and the current detection port is the transmission port included in the determined target route object. In order to avoid subjectivity of manual judgment and reduce possibility of updating errors of a transmission path, when determining a next hop port of the transmission path to be updated every time, the application determines the next hop port based on configuration parameters such as a first object type of a current detection object and a signal level of the current detection port through connection characteristics between each transmission port and a routing object in the transmission path of an optical transmission network, thereby ensuring the updating accuracy of the transmission path.

In one possible implementation manner, the embodiment of the present application may obtain, through the first object type of the target routing object, the candidate next hop-port set of the corresponding signal hierarchy type. And determining a candidate signal level set containing candidate signal levels corresponding to each candidate next hop port in the candidate next hop port set according to the candidate next hop port set. And determining a target signal level corresponding to the next hop port from the candidate signal level set according to the signal level of the current detection port and the signal level relation table, so as to determine the next hop port according to the target signal level of the next hop port, and determining the next hop port from the candidate next hop port set according to the target signal level corresponding to the next hop port.

Specifically, the object types of the routing object may be classified into two object types, namely a connection object type and a routing configuration object type. The transmission path in the optical transmission network is formed by alternately connecting a routing object of a connection object type and a routing object of a configuration object type, so that in order to ensure that data can be correctly transmitted between signal layers of different client layers and service layers, ports are required to be connected according to a path selection rule of the optical transmission network, when a first object type of a target routing object is the connection object type, a next hop port is required to be positioned in a client layer signal level port corresponding to a current port, a candidate next hop port set of the target routing object can be all client layer signal level ports of the current port, and a corresponding first candidate signal level set is determined according to specific signal levels respectively corresponding to all client layer signal level ports corresponding to the current port. When the first object type of the target routing object is the routing configuration object type, the next hop port needs to be located in the service layer signal hierarchy port corresponding to the current port, the candidate next hop port set of the target routing object can be all service layer signal hierarchy ports of the current port, and the corresponding first candidate signal hierarchy set is determined according to the specific signal hierarchy corresponding to each of all service layer signal hierarchy ports corresponding to the current port.

Specifically, taking the object type of the target routing object as the routing configuration object type, taking the optical data unit-ODU 2 as an example of the signal hierarchy of the current detection port, according to the routing configuration object type of the target routing object, obtaining a candidate next hop port set formed by all service layer signal hierarchy ports corresponding to the current detection port, and determining a candidate signal hierarchy set, where the candidate signal hierarchy set may include the optical data unit-ODU 3, the optical data unit-ODU 4, and the optical transmission unit-OTU 2.

In a possible implementation, when the first object type of the target routing object is the connection object type, the transmission direction representing the signal flow in the transmission path is from the service layer to the client layer, i.e. the signal layer of the next hop port needs to be closer to the client layer than the signal layer of the current detection port. Therefore, according to the signal hierarchy relation table pre-created in the embodiment of the application, a second preset hierarchy condition corresponding to the type of the connection object is set, and the signal hierarchy level meeting the signal hierarchy level greater than the signal hierarchy level of the current detection port can be further screened out from the first candidate signal hierarchy set through the second preset hierarchy condition, or the signal hierarchy level is the same as the signal hierarchy level of the current port, and the layer sequence number is greater than the second candidate signal hierarchy set of the layer sequence number of the current port, so that the next hop port of the target candidate signal hierarchy determined through the second candidate signal hierarchy set is more close to the client layer, the signal stream is ensured to be transmitted towards the expected transmission direction, and the signal stream is prevented from being skipped or erroneously transmitted to other ports.

In one possible implementation, since the routing object may be used to determine the direction and rule of the transmission path of the signal stream, it is determined how the signal stream is transmitted between the service layer and the client layer along the transmission path, and thus the direction of transmission of the signal stream in the transmission path may be determined according to the type of the object of the routing object. Specifically, when the first object type of the target routing object is the routing configuration object type, the transmission direction of the signal flow in the transmission path is from the client layer to the service layer, that is, the signal layer of the next hop port needs to be closer to the service layer than the signal layer of the current detection port. Therefore, according to the signal hierarchy relation table pre-created in the embodiment of the present application, a second preset hierarchy condition corresponding to the type of the route configuration object is set, and a signal hierarchy level satisfying a signal hierarchy level smaller than that of the current detection port or a third candidate signal hierarchy set having a signal hierarchy level identical to that of the current port and a layer sequence number smaller than that of the current port can be further screened from the first candidate signal hierarchy set by the second preset hierarchy condition, so that the next hop port of the target candidate signal hierarchy determined by the third candidate signal hierarchy set is more close to the service layer, and signal stream is guaranteed to be transmitted towards the expected transmission direction, and skip or erroneous transmission to other ports is avoided.

It should be noted that, in the embodiment of the present application, a suitable target signal level of a next hop port may be selected from a candidate level set according to other factors such as a specific network topology structure and a connection relationship, an actual requirement of a network route, a performance requirement of a port, a network bandwidth resource, and the like, and the method is not limited to selecting a candidate level with the highest ranking as the target signal level.

Specifically, taking the signal level of the current detection port as an optical data unit-ODU 4, and the candidate signal level set including the optical data unit-ODUC 2, the optical data unit-ODU 2e, the optical transmission unit-OTUC 2, and the regeneration segment-STM-1 as an example, if the first object type of the target routing object corresponding to the current detection port is a connection object type, determining from the candidate signal level set according to a first preset level condition and a signal level relation table, and sorting a second candidate signal level set formed by the regeneration segment-STM-1 and the optical data unit-ODU 2e according to the signal level and the sequence from small to large in-layer sequence, and determining that the optical data unit-ODU 2e with the forefront sorting is the target signal level of the next hop port, thereby determining the next hop port from the candidate next hop port set according to the target signal level. If the first object type of the target routing object corresponding to the current detection port is the routing configuration object type, a third candidate signal level set consisting of an optical data unit-ODUC 2 and an optical transmission unit-OTUC 2 can be determined from the candidate signal level set according to a second preset level condition and a signal level relation table, and then the third candidate signal level set is sequenced according to the signal level and the sequence from the large layer sequence number to the small layer sequence number, the optical data unit-ODUC 2 with the forefront sequencing is determined to be the target signal level of the next hop port, so that the next hop port is determined from the candidate next hop port set according to the target signal level.

Step 4012: judging whether the next hop port meets the preset serial connection condition, if not, jumping to execute step 4014, and if so, jumping to execute step 4013.

In the embodiment of the application, when determining the current routing object and the next hop port corresponding to the current detection port, whether the next hop port accords with the preset concatenation condition of the transmission path to be updated is also required to be determined, so that the updated transmission path can maintain normal continuous signal transmission and correct routing forwarding.

In one possible implementation, the preset concatenation condition may be set to ensure that the next hop port and the current routing object can be effectively connected by physical or logical ports, and that the routing object corresponding to the next hop port can process the data flow with the same signal level as the current detection object and perform correct routing forwarding. Therefore, the process of determining whether the next hop port meets the preset concatenation condition may be that a plurality of candidate route objects corresponding to a second object type opposite to the first object type of the target route object of the current detection port are screened out from a plurality of route objects including the next hop port, whether the candidate route objects have an intersection with the port included in the current detection object and have the same signal level as the current detection object exist in the candidate route objects is determined, if yes, the next hop port is determined to meet the preset concatenation condition, and if not, the next hop port is determined to not meet the preset concatenation condition.

Specifically, if the first object type of the target routing object B-C of the current detection port C is a connection object type and the signal level is the optical data unit-ODU 4, candidate routing objects, such as a CC object, a PG object, an MFDFR object, a Binding object, and the like, of a plurality of routing configuration object types corresponding to the next hop port are screened out, port detection is performed on each candidate routing object, and whether the transmission port of the candidate routing object has an intersection with the current detection port or not and the candidate routing object with the same signal level as the current detection object is determined respectively. For example, there are a candidate route object C-D with a signal level of optical data unit-ODU 4, a candidate route object C-D with a signal level of optical data unit-ODU 3, and a candidate route object E-F with a signal level of optical data unit-ODU 4 in the candidate route objects of the next hop ports, because the ports at both ends of the candidate route object C-D with a signal level of optical data unit-ODU 4 are C, D respectively, and there is an intersection with the current detection port C, and the signal level is the same as the current detection object, so that it is determined that the next hop port satisfies the preset concatenation condition. If the first object type of the target routing object a-B of the current detection port B is a routing configuration object type and the signal level is the optical data unit-ODU 4, candidate routing objects, such as TL objects and SNC objects, of a plurality of connection object types corresponding to the next hop port are screened out, and if the candidate routing object B-C of the signal level is the candidate routing object B-C of the optical data unit-ODU 4, the candidate routing object B-C of the signal level is the candidate routing object B-C of the optical data unit-ODU 3 and the candidate routing object C-D of the signal level is the candidate routing object B-C of the optical data unit-ODU 4 in the candidate routing object B-C of the signal level is B, C, the intersection is formed between the candidate routing object B-C of the signal level and the current detection port B, and the signal level is the same as the current detection object, the next hop port is determined to satisfy the preset concatenation condition.

Step 4013: taking the target candidate route object of the next hop port as the current detection object of the next detection process, taking the next hop port as the current detection port of the next detection process, and executing step 4011 in a jumping manner.

In the embodiment of the application, if the next hop port is determined to meet the preset serial connection condition, the next hop port is taken as the current detection port of the next detection processing, the candidate route object which is determined by the next hop port and meets the preset serial connection condition is taken as the current detection object of the next detection processing, the next detection processing is continuously iterated until the terminal port of the target transmission path is determined, and the updating of the target transmission path is completed.

Step 4014: judging whether the current detection port meets the terminal port condition, if yes, jumping to execute step 4015, and if not, ending.

In the embodiment of the present application, if the next hop port does not satisfy the preset serial port, it represents that the current detection port may be located at the end points of two ends of the transmission path, that is, the current port is the end port of the current transmission path, but the signal hierarchy is inconsistent due to mismatching or incompatibility between devices, or the port connection of the current transmission path cannot satisfy the signal stream transmission requirement due to existence of other constraint conditions. Therefore, it is necessary to further determine whether the current detection port satisfies a preset termination port condition, thereby determining whether the current detection port is a termination port.

In one possible implementation manner, in order to correctly judge and set the termination port to avoid an error, an interruption or an invalid transmission of signal stream transmission and improve reliability and stability of a transmission path, according to a signal hierarchy table and service configuration conditions, the embodiment of the present application presets conditions for judging whether the current detection port is the termination port of the transmission path, including any one of the following conditions:

(1) The signal level of the current detection port belongs to an upper layer signal level, or the signal level of at least one client layer sub-port in the client layer sub-ports corresponding to the current detection port belongs to an upper layer signal level.

In the embodiment of the present application, the upper signal layer may be a PDH service layer, an ETH service layer, and a client signal layer in the signal layer relation table provided in the embodiment of the present application. The client layer sub-port is a logical sub-port of the physical port corresponding to the current detection port in the client layer signal level, and because the port belonging to the upper layer signal level is directly connected with the service entity of the client layer, the current detection port or the signal level of the corresponding client layer sub-port belongs to the upper layer signal level, and when the signal stream is represented to be transmitted to the current detection port, the signal stream is transmitted to the lowest client layer without being transmitted downwards, so that the current detection port can be determined to be the terminal port of the transmission path.

(2) At least one client layer sub-port in the client layer sub-ports corresponding to the current detection port is provided with configuration object parameters.

In the embodiment of the application, the configuration object parameters such as the CC object, the MFDFR object, the PG object and the like are used for communicating with the service entity of the client layer, if the client layer sub-port corresponding to the current detection port is provided with the specific configuration object parameters, the configuration object parameters indicate that the signal stream is transmitted to the lowest client layer when being transmitted to the current detection port, so that the current detection port can be determined to be the terminal port of the transmission path.

(3) The current detection port is provided with binding object parameters, or at least one client layer sub-port in the client layer sub-ports corresponding to the current detection port is provided with binding object parameters.

In the embodiment of the application, the binding object characterizes that the current detection port has been associated with at least one network resource, namely, a binding relationship is established, which can be a binding relationship between an input port and an output port of a signal flow, or a binding relationship that two end ports of the signal flow are associated with other devices or network service resources. Therefore, if the current port or the client layer sub-port thereof is set with the binding object, the current detection port can be determined to be the termination port.

(4) The number of client layer sub-ports of different client layer signal levels corresponding to the current detection port exceeds a preset threshold.

In the embodiment of the present application, the preset threshold may be set to 1, that is, when the number of client layer sub-ports corresponding to the current detection port and having different client layer signal levels exceeds 1, it is determined that the current detection port is a termination port. The method and the device are characterized in that when the number of the client layer sub-ports of different client layer signal levels corresponding to the current detection port exceeds 1, the client layer signal level relation of the current detection port spans at least two client layer signal levels, and according to the signal level relation table provided by the embodiment of the application, the client layer signal level with a lower level is not needed for signal transmission, so that the signal flow transmitted by the current detection port is transmitted to the lowest client layer, and the current detection port can be determined to be the terminal port of the transmission path.

Step 4015: and determining the current detection port as a termination port.

Step 402: based on the obtained termination port, the target transmission path is updated.

In the embodiment of the application, when the detection processing is respectively and iteratively executed from the two-end transmission ports of the target routing object until the terminal ports at the two ends of the target transmission path to be updated are respectively determined, the target transmission path can be updated according to the obtained two-end terminal ports, each hop transmission port determined by the iterative detection processing and the routing object, and a new transmission path capable of normally carrying out signal stream transmission is obtained.

Specifically, with the transmission path to be updated being a-B-C-D-E-F, according to the transmission path updating method provided by the embodiment of the present application, B-C is used as a target routing object, and the detection processing is iteratively performed from the transmission ports B, C at the two ends corresponding to the target routing object until new A1 and F1 termination ports are respectively determined, and according to each hop of the transmission ports B-A1, C-D1-E1-F1 and the final termination ports determined in sequence in the detection processing from B, C ports to the two ends, a new transmission path A1-B-C-D1-E1-F1 can be obtained.

Referring to fig. 5, which is a schematic flow chart of a method for determining a termination port according to an embodiment of the present application, a transmission path a-B-C-D-E-F where a target routing object CD is located needs to be updated due to an original B, E port failure, and based on the transmission path updating method according to an embodiment of the present application, an iterative detection process is performed from two end transmission ports B, C corresponding to a target routing object with B-C as the target routing object until new A1 and F1 termination ports are determined respectively, where the method is implemented as follows:

Step 501: and acquiring two end ports B, C corresponding to the target routing object in the target transmission path to be updated.

Step 502: and iteratively executing detection processing by taking the port B as a current detection port.

Step 503: judging whether a terminal port is detected in the iterative detection process, if the terminal port A1 is detected, jumping to step 504, and if the terminal port is not detected, ending.

Step 504: and iteratively executing detection processing by taking the port C as the current detection port.

Step 505: if the terminating port F1 is detected, the process proceeds to step 506, and if the terminating port is not detected, the process ends.

Step 506: new terminating ports A1, F1 are obtained.

In a possible implementation manner, referring to fig. 6, a flowchart of a method for determining a termination port according to an embodiment of the present application is shown, where a specific implementation flow of the method is as follows:

step 601: determining whether the signal level of the current detection port belongs to an upper layer signal level, if not, jumping to execute step 602, if yes, jumping to execute step 609.

Step 602: determining whether the signal level of at least one client layer sub-port in the client layer sub-ports corresponding to the current detection port belongs to an upper layer signal level, if not, jumping to execute step 603, and if so, jumping to execute step 609.

Step 603: it is determined whether the configuration object parameter is set in the current detection port, if not, step 604 is performed in a skip mode, and if yes, step 609 is performed in a skip mode.

Step 604: determining whether at least one client layer sub-port in the client layer sub-ports corresponding to the current detection port has set the configuration object parameters, if not, jumping to execute step 605, if yes, jumping to execute step 609.

Step 605: it is determined whether the current detection port has set the binding object parameter, if not, step 606 is performed in a skip mode, and if yes, step 609 is performed in a skip mode.

Step 606: determining whether at least one client layer sub-port in the client layer sub-ports corresponding to the current detection port has set the binding object parameter, if not, jumping to execute step 607, if yes, jumping to execute step 609.

Step 607: determining whether the number of the client layer sub-ports of different client layer signal levels corresponding to the current detection port exceeds a preset threshold, if not, jumping to execute step 608, and if so, jumping to execute step 609.

Step 608: and determining that the current detection port does not belong to the terminal port of the target transmission path.

Step 609: and determining that the current detection port belongs to a terminal port of the target transmission path.

In a possible implementation manner, referring to a flow chart of another transmission path updating method provided by the embodiment of the present application shown in fig. 7, a specific implementation flow of the method is as follows:

step 701: judging whether the first object type of the current detection object is a route configuration object type, if so, jumping to execute step 702, otherwise jumping to execute step 703.

Step 702: and acquiring a service layer signal level port set corresponding to the current detection port and a corresponding candidate signal level set, and jumping to execute step 704.

Step 703: and acquiring a client layer signal level port set corresponding to the current detection port and a corresponding candidate signal level set.

Step 704: and determining the next hop port according to the signal level of the current detection port and the signal level relation table.

Step 705: and judging whether the next hop port has a next hop routing object meeting the preset concatenation condition, if so, jumping to execute step 706, and if not, jumping to execute step 707.

Step 706: taking the next hop route object as the current detection object of the next detection process, taking the next hop port as the current detection port of the next detection process, and jumping to execute step 701.

Step 707: and judging whether the current detection port is a termination port, if so, jumping to step 708, and if not, ending.

Step 708: and updating the transmission path according to the termination port.

Referring to fig. 8, based on the same inventive concept, an embodiment of the present application further provides a transmission path updating apparatus 80, which includes:

a detection processing unit 801, configured to iteratively perform detection processing from a transmission port included in a target routing object in a target transmission path to be updated until a termination port is determined;

the detection processing unit 801 includes a port determination subunit 8011, a concatenation detection subunit 8012, a termination detection subunit 8013, and an iteration determination subunit 8014, where:

a port determining subunit 8011, configured to determine a next hop port of the transmission port based on the first object type to which the current detection object belongs and a signal level of the current detection port; in the first detection process, the current detection object is a target route object, and the current detection port is a transmission port;

a tandem detection subunit 8012, configured to determine whether a next hop port meets a preset tandem condition;

a termination detection subunit 8013, configured to determine that the current detection port is a termination port if the next hop port does not meet the preset concatenation condition and the current detection port meets the termination port condition;

An iteration determining subunit 8014, configured to take the target candidate routing object of the next hop port as a current detection object of the next detection process and take the next hop port as a current detection port of the next detection process if the next hop port meets a preset concatenation condition;

a path updating unit 802, configured to update the target transmission path based on the obtained termination port;

optionally, the port condition is terminated, including any one of the following conditions:

in the client layer sub-ports corresponding to the current detection ports, the signal level of at least one client layer sub-port belongs to the upper layer signal level, and the client layer sub-ports are logical sub-ports of the physical ports corresponding to the current detection ports in the client layer signal level;

at least one client layer sub-port is provided with configuration object parameters, wherein the configuration object parameters are used for communication between the client layer sub-port and a service entity of the client layer;

At least one client layer sub-port has set binding object parameters;

the number of client layer sub-ports of different client layer signal levels corresponding to the current detection port exceeds a preset threshold.

Optionally, the port determining subunit 8011 is specifically configured to:

determining a candidate signal level set based on the candidate next hop port set, wherein the candidate signal level set comprises candidate signal levels of all candidate next hop ports in the candidate next hop port set;

determining a target signal level corresponding to the next hop port from the candidate signal level set according to the signal level of the current detection port and the signal level relation table; wherein, each signal level in the signal level relation table is orderly arranged from small to large according to the level of each level and the sequence number in the layer;

Optionally, the port determining subunit 8011 is specifically configured to:

And ordering each second candidate signal level in the second candidate signal level set according to the signal level and the sequence from the high level to the low level of the layer sequence number, and taking the second candidate level with the highest ordering as the target signal level.

Optionally, the port determining subunit 8011 is specifically configured to:

Optionally, the tandem detection subunit 8012 is specifically configured to:

selecting at least one candidate route object of a second object type different from the first object type from a plurality of route objects containing next hop ports;

Determining whether at least one candidate route object has an intersection with a port included by the current detection object and has the same signal level as the current detection object;

if the port does not exist, determining that the next hop port does not meet the preset serial connection condition; if yes, determining that the next hop port meets the preset serial connection condition.

By the device, the serial connection of the transmission paths and the detection processing of the termination ports are carried out iteratively, the next hop port of the transmission paths is determined according to the routing object type of each detection object and the signal level of the detection port in each iteration processing, and whether the ports meet the serial connection condition of the transmission paths and whether the ports are the termination ports is judged when the next hop port is determined, so that the updating accuracy of the transmission paths is ensured, and the error path updating is avoided. Compared with the traditional method that the physical layer equipment is manually configured to determine the port information of each hop, the method and the device update the transmission path in an automatic mode, the port concatenation of the whole transmission path is completely driven by the configuration parameters of the port and the routing object, so that the port of the next hop and the terminal port can be accurately determined, the subjectivity of manual judgment is avoided, the possibility of updating errors of the transmission path is reduced, and the accuracy of path updating is improved. And the end-to-end concatenation of the whole transmission path can be rapidly completed, the updating efficiency of the transmission path of the optical transmission network is improved, and the time and labor cost of manual operation are reduced.

For convenience of description, the above parts are respectively described as being functionally divided into unit modules (or modules). Of course, the functions of each unit (or module) may be implemented in the same piece or pieces of software or hardware when implementing the present application. The apparatus may be used to perform the methods shown in the embodiments of the present application, and therefore, the description of the foregoing embodiments may be referred to for the functions that can be implemented by each functional module of the apparatus, and the like, which are not repeated.

Referring to fig. 9, based on the same technical concept, the embodiment of the application further provides a computer device. In one embodiment, the computer device may be, for example, a path update device as shown in FIG. 1 or as shown in FIG. 2. The computer device, as shown in fig. 9, may include a memory 901, a communication module 903, and one or more processors 902.

A memory 901 for storing a computer program executed by the processor 902. The memory 901 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system; the storage data area may store various sets of operation instructions, etc.

The memory 901 may be a volatile memory (RAM) such as a random-access memory (RAM); the memory 901 may also be a nonvolatile memory (non-volatile memory), such as a read-only memory (rom), a flash memory (flash memory), a hard disk (HDD) or a Solid State Drive (SSD); or memory 901, is any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer, but is not limited to such. The memory 901 may be a combination of the above memories.

The processor 902 may include one or more central processing units (central processing unit, CPU) or digital processing units, or the like. A processor 902 for implementing the above-described transmission path updating method when calling the computer program stored in the memory 901.

The communication module 903 is configured to communicate with an optical transmission network, a path relay device, or other network devices.

The specific connection medium between the memory 901, the communication module 903, and the processor 902 is not limited in the embodiment of the present application. The embodiment of the present application is shown in fig. 9, where the memory 901 and the processor 902 are connected by a bus 904, where the bus 904 is depicted in bold in fig. 9, and the connection between other components is merely illustrative, and not limiting. The bus 904 may be divided into an address bus, a data bus, a control bus, and the like. For ease of description, only one thick line is depicted in fig. 9, but only one bus or one type of bus is not depicted.

The memory 901 stores a computer storage medium in which computer executable instructions for implementing the transmission path updating method of the embodiment of the present application are stored. The processor 902 is configured to perform the transmission path updating method of each of the above embodiments.

Based on the same inventive concept, the embodiments of the present application also provide a storage medium having stored thereon a computer program which, when executed on a computer, causes a computer processor to perform the steps in the transmission path updating method according to the various embodiments of the present application described above in the present specification.

In some possible embodiments, aspects of the transmission path updating method provided by the present application may also be implemented in the form of a program product, which includes program code for causing a computer device to perform the steps of the transmission path updating method according to the various exemplary embodiments of the present application described in the present specification, when the program product is run on the computer device, for example, the computer device may perform the steps of the embodiments.

The program product may employ any combination of one or more readable media. The readable medium may be a readable signal medium or a readable storage medium. The readable storage medium can be, for example, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or a combination of any of the foregoing. More specific examples (a non-exhaustive list) of the readable storage medium would include the following: an electrical connection having one or more wires, a portable disk, a hard disk, random Access Memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

The program product of embodiments of the present application may employ a portable compact disc read only memory (CD-ROM) and include program code and may run on a computing device. However, the program product of the present application is not limited thereto, and in the present application, the readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with a command execution system, apparatus, or device.

The readable signal medium may include a data signal propagated in baseband or as part of a carrier wave with readable program code embodied therein. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination of the foregoing. A readable signal medium may also be any readable medium that is not a readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with a command execution system, apparatus, or device.

Program code embodied on a readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.

Program code for carrying out operations of the present application may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, C++ or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computing device, partly on the user's equipment, as a stand-alone software package, partly on the user's computing device, partly on a remote computing device, or entirely on the remote computing device or server. In the case of remote computing devices, the remote computing device may be connected to the user computing device through any kind of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or may be connected to an external computing device (e.g., connected via the Internet using an Internet service provider).

It should be noted that although several units or sub-units of the apparatus are mentioned in the above detailed description, such a division is merely exemplary and not mandatory. Indeed, the features and functions of two or more of the elements described above may be embodied in one element in accordance with embodiments of the present application. Conversely, the features and functions of one unit described above may be further divided into a plurality of units to be embodied.

Furthermore, although the operations of the methods of the present application are depicted in the drawings in a particular order, this is not required to either imply that the operations must be performed in that particular order or that all of the illustrated operations be performed to achieve desirable results. Additionally or alternatively, certain steps may be omitted, multiple steps combined into one step to perform, and/or one step decomposed into multiple steps to perform.

It will be appreciated by those skilled in the art that 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.

While preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the application.

It will be apparent to those skilled in the art that various modifications and variations can be made to the present application without departing from the spirit or scope of the application. Thus, it is intended that the present application also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims

1. A transmission path updating method, the method comprising:

and updating the target transmission path based on the obtained terminal port.

2. The method of claim 1, wherein the termination port condition comprises any one of the following conditions:

The at least one client layer sub-port has set the binding object parameters;

3. The method of claim 1, wherein the determining the next hop port of the transport port based on the first object type to which the current detected object belongs and the signal hierarchy of the current detected port comprises:

determining a first candidate signal level set based on the candidate next hop port set, wherein the first candidate signal level set comprises candidate signal levels of all candidate next hop ports in the candidate next hop port set;

determining a target signal level corresponding to the next hop port from the first candidate signal level set according to the signal level of the current detection port and a signal level relation table; wherein, each signal level in the signal level relation table is orderly arranged from small to large according to the respective signal level and the sequence number in the layer;

4. The method of claim 3, wherein when the first object type is a connection object type, the determining, according to the signal hierarchy of the current detection port and the signal hierarchy relation table, the target signal hierarchy of the next hop port from the first candidate signal hierarchy set includes:

and sequencing each second candidate signal level in the second candidate signal level set according to the signal level and the sequence from the high level to the low level of the layer sequence number, and taking the second candidate signal level with the highest sequencing as the target signal level.

5. The method of claim 3, wherein when the first object type is a route configuration object type, the determining, according to the signal hierarchy of the current detection port and the signal hierarchy relation table, the target signal hierarchy of the next hop port from the first candidate signal hierarchy set includes:

6. The method of claim 1, wherein the determining whether the next hop port meets a preset concatenation condition comprises:

7. A transmission path updating apparatus, characterized by comprising:

and the path updating unit is used for updating the target transmission path based on the obtained terminal port.

8. A computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that,

The processor, when executing the computer program, implements the steps of the method of any one of claims 1 to 6.

9. A computer storage medium having stored thereon computer program instructions, characterized in that,

which computer program instructions, when executed by a processor, carry out the steps of the method according to any one of claims 1 to 6.

10. A computer program product comprising computer program instructions, characterized in that,