CN111131935A - OTN switching method, device, equipment and storage medium - Google Patents
OTN switching method, device, equipment and storage medium Download PDFInfo
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- CN111131935A CN111131935A CN201911382506.2A CN201911382506A CN111131935A CN 111131935 A CN111131935 A CN 111131935A CN 201911382506 A CN201911382506 A CN 201911382506A CN 111131935 A CN111131935 A CN 111131935A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0062—Network aspects
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/03—Arrangements for fault recovery
- H04B10/032—Arrangements for fault recovery using working and protection systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0062—Network aspects
- H04Q2011/0079—Operation or maintenance aspects
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0062—Network aspects
- H04Q2011/0079—Operation or maintenance aspects
- H04Q2011/0081—Fault tolerance; Redundancy; Recovery; Reconfigurability
Abstract
The embodiment of the invention discloses an OTN switching method, a device, equipment and a storage medium. The method comprises the following steps: converging at least one group of low-order services to high-order client side services; establishing at least one protection switching mechanism at the high-order client side; when receiving the switching triggering condition, switching the link between the high-order client side and a high-order line standby side according to a protection switching mechanism. The scheme of the embodiment of the invention realizes the switching of a plurality of groups of low-order services in the OTN, reduces the time consumption of the switching, does not increase the use of network bandwidth, and solves the problem of longer switching time caused by the need of respectively switching each low-order service in the prior art.
Description
Technical Field
The embodiment of the invention relates to the technical field of optical communication, in particular to an OTN switching method, device, equipment and storage medium.
Background
An Optical Transport Network (OTN) is widely applied to a backbone Transport Network, is completely backward compatible based on a Wavelength Division Multiplexing technology, can be fused with an Optical Synchronous Digital Hierarchy (SDH) and a Wavelength Division Multiplexing (WDM) device, provides Multiplexing, crossing and configuration of large granularity, and significantly improves adaptation and transmission efficiency of a Transport Network to high-bandwidth data. Once the optical fiber is damaged, a great deal of service is interrupted, so the viability of the optical transport network must be improved, one measure of the viability of the network is the transduction, and the service recovery time is regulated by the industry to be less than 50 milliseconds.
At present, in order to prevent multiple groups of low-order services from being switched together due to the same fault, protection switching processing is usually performed on multiple groups of low-order services in a serial or parallel execution manner; the serial execution mode preferentially switches one of the main low-order services, the low-order services of other groups set a waiting time, and the fault does not trigger the protection switching of the low-order services of other groups within the waiting time; the parallel execution mode switches the multiple groups of low-order services simultaneously.
In the method in the prior art, in the serial execution mode, because one of the main low-order services is preferentially switched and the low-order services of other groups set a waiting time, the total protection switching time is linearly increased along with the increase of the number of the groups of the low-order services, the total switching time is long, and the requirement that the service recovery time is less than 50 milliseconds is difficult to meet; the parallel execution mode is limited by the bandwidth of the OTN network, so that the switching of each group of low-order services cannot be performed simultaneously, the use of the bandwidth of the OTN network is increased, and the time for completing the switching of each group of low-order services is long.
Disclosure of Invention
Embodiments of the present invention provide an OTN switching method, apparatus, device, and storage medium, so as to implement switching of multiple groups of low-order services in an OTN network, and reduce switching time consumption without increasing the use of network bandwidth.
In a first aspect, an embodiment of the present invention provides an OTN switching method, where the method includes:
converging at least one group of low-order services to high-order client side services;
establishing at least one protection switching mechanism in the high-order client side service;
when receiving the switching triggering condition, switching the link between the high-order client side and a high-order line standby side according to a protection switching mechanism.
In a second aspect, an embodiment of the present invention further provides an OTN switching device, where the OTN switching device includes:
the low-order service convergence module is used for converging at least one group of low-order services to high-order client side services;
a protection switching mechanism establishing module, configured to establish at least one protection switching mechanism inside the high-order client side service;
and the switching module is used for switching the link between the high-order client side and a high-order line standby side according to a protection switching mechanism when a switching triggering condition is received.
In a third aspect, an embodiment of the present invention further provides an electronic device, where the electronic device includes:
at least one processor; and
a memory communicatively coupled to the at least one processor; wherein the content of the first and second substances,
the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor, and when the at least one processor is capable of executing the OTN switching method according to any embodiment of the present invention.
In a fourth aspect, an embodiment of the present invention further provides a storage medium containing computer-executable instructions, where the computer-executable instructions are used to execute an OTN switching method according to any embodiment of the present invention when executed by a computer processor.
The embodiment of the invention converges at least one group of low-order services to high-order client-side services; establishing at least one protection switching mechanism in the high-order client side service; when receiving the switching triggering condition, switching the link between the high-order client side and a high-order line standby side according to a protection switching mechanism. The switching of multiple groups of low-order services in the OTN is realized, and the use of network bandwidth is not increased while the time consumption of switching is reduced.
Drawings
Fig. 1 is a flowchart of an OTN switching method in a first embodiment of the present invention;
fig. 2 is a flowchart of an OTN switching method in a first embodiment of the present invention;
FIG. 3 is a diagram of an application scenario applicable to the first embodiment of the present invention;
FIG. 4 is a diagram of an application scenario applicable to the first embodiment of the present invention;
fig. 5 is a schematic structural diagram of an OTN switching device in the second embodiment of the present invention;
fig. 6 is a schematic structural diagram of an electronic device in a third embodiment of the present invention.
Detailed Description
The embodiments of the present invention will be described in further detail with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of and not restrictive on the broad invention. It should be further noted that, for convenience of description, only some structures, not all structures, relating to the embodiments of the present invention are shown in the drawings.
Example one
Fig. 1 is a flowchart of an OTN switching method in an embodiment of the present invention, where this embodiment is applicable to switching multiple groups of low-order services in an OTN network, and the method may be executed by an OTN switching device, where the OTN switching device may be implemented in a software and/or hardware manner and integrated in an electronic device executing the method, and the electronic device executing the method in this embodiment may be an electronic device such as a computer, a tablet computer, or a smart phone. Specifically, referring to fig. 1, the method specifically includes the following steps:
s110, at least one group of low-order services are converged to high-order client side services.
The low-order service is a client-side signal, which may be a low-rate service such as SDH, ethernet, or OTN service. It should be noted that the low-level services related in the embodiment of the present invention may be a group or multiple groups, and the embodiment of the present invention is not limited thereto.
Specifically, the groups of low-order services may be respectively put into one Optical channel data Unit (ODU) sub-granule, for example, the groups of low-order services may be respectively put into a low-order Optical channel data Unit (LO _ ODU). For example, the low-order service 1 may be stored in the LO _ ODU _1 sub-granule; the low-order service 2 can be stored into the LO _ ODU _2 sub-granule; the low-order service N may be stored in the LO _ ODU _ N sub-granule, where N may be any positive integer, which is not limited in the embodiment of the present invention.
Specifically, after a plurality of groups of low-order services are respectively put into one ODU subparticle, the low-order services stored in the ODU subparticle can be converged into one path of high-order client-side service.
Optionally, the low-order service stored in the ODU sub-particle may be converged to a path of high-order client-side service through a many-to-one cross matrix. For example, N low-order businesses stored in N ODU sub-particles may be converged to a path of high-order client-side service through an N-to-1 cross matrix, where N is any positive integer greater than 1, and a specific value of N is not limited in the embodiment of the present invention.
Optionally, converging at least one group of low-level services to a high-level client-side service through a many-to-one cross matrix specifically includes: and decomposing and multiplexing the high-order client side service to obtain a plurality of low-order client sub-particles, wherein the low-order client sub-particles are matched with the low-order service.
Specifically, at least one group of low-order services are converged to one path of high-order client side services through a many-to-one cross matrix, that is, demultiplexing is performed on the high-order client side, so that a plurality of low-order client sub-particles are obtained, wherein the plurality of low-order client sub-particles are matched with a plurality of groups of low-order services one by one. For example, the low-order customer sub-granule 1, i.e. LO _ ODU _1, corresponds to the low-order service 1; the low-order client sub-granule 2, that is, the LO _ ODU _2 corresponds to the low-order service 2, and so on, which are not described in detail in this embodiment of the present invention.
S120, at least one protection switching mechanism is established on the high-order client side.
Specifically, after at least one group of low-order services are converged to a high-order client side service, at least one protection switching mechanism can be established on the high-order client side; for example, one, two, or three protection switching mechanisms may be established on the high-order client side, which is not limited in the embodiment of the present invention.
Optionally, at least one protection switching mechanism is established on the high-order client side, that is, a one-to-many cross matrix is configured and a related protection channel is created on the high-order client side. Illustratively, an N-way protection channel may be created on the high-order client side, where N may be any positive integer, which is not limited in the embodiment of the present invention.
S130, when receiving the switching triggering condition, switching the link between the high-order client side and the standby side of the high-order line according to the protection switching mechanism.
Specifically, after at least one protection switching mechanism is established inside the high-order client side service, when a switching trigger condition is received, a link between the high-order client side and a high-order line standby side can be switched according to the established protection switching mechanism.
In a specific example of the embodiment of the present invention, whether a switching trigger condition corresponding to each group of low-order services is received may be queried in an interrupt and/or polling manner; if so, disconnecting the data transmission between the high-order client side and the current high-order line side, and selecting a transmittable high-order line side according to at least one protection switching mechanism to realize the data transmission; if not, whether the switching triggering conditions corresponding to each group of low-order services are received or not is continuously inquired through an interruption and/or polling mode.
Specifically, if the switching trigger condition corresponding to each group of low-order services is received through an interrupt and/or polling query, it is necessary to disconnect the data transmission between the high-order client side and the current high-order line side, and select one transmittable high-order line side according to the established one or more protection switching mechanisms, so as to implement the continuous transmission of data.
Illustratively, if a switching trigger condition corresponding to each group of low-order services is queried and received through an interruption and/or polling manner, it is necessary to disconnect data transmission between a high-order client side and a current high-order line side and switch to a first protection channel, thereby implementing continuous transmission of data in the OTN network.
The embodiment converges at least one group of low-order services to high-order client-side services; establishing at least one protection switching mechanism at the high-order client side; when a switching triggering condition is received, the link between the high-order client side and the high-order line standby side is switched according to a protection switching mechanism, so that the switching of multiple groups of low-order services in the OTN is realized, the time consumption for switching is reduced, the use of network bandwidth is not increased, and the problem of long switching time caused by the need of respectively switching each low-order service in the prior art is solved.
Application scenarios
For better understanding of the embodiments of the present invention, fig. 2 is a flowchart of an OTN switching method in a first embodiment of the present invention, and referring to fig. 2, the method mainly includes the following steps:
s210, configuring related cross protection.
Specifically, at least one group of low-order services can be converged to a high-order client side service through a many-to-one cross matrix, that is, the high-order client side service is decomposed and multiplexed to obtain a plurality of low-order client sub-particles, and the low-order client sub-particles are matched with the low-order service.
S220, whether switching is required?
Specifically, it is queried through an interrupt and/or polling manner whether a switching trigger condition corresponding to each group of low-level services is received, and further determines whether switching is required?
And if so, disconnecting the data transmission between the high-order client side and the current high-order line side, and selecting a transmittable high-order line side according to the at least one protection switching mechanism to realize the data transmission.
If not, whether the switching triggering conditions corresponding to each group of low-order services are received or not is continuously inquired through an interruption and/or polling mode.
In a specific example of the embodiment of the present invention, first, a plurality of low rate services are respectively put into one ODU (LO _ ODU) sub-particle, where the low rate service may be an SDH. Low rate traffic in ethernet or OTN. Illustratively, a low-rate service client _1 may be put into the LO _ ODU _ 1; a low rate service client _2 may be put into LO _ ODU _ 2; a low rate service client _3 may be put into LO _ ODU _ 3; the low-rate service client _ N may also be put into the LO _ ODU _ N, where N may be any positive integer greater than 3.
Further, each low-order ODU (LO _ ODU) sub-particle is put into one high-order ODU (HO _ ODU _ CL) particle through a cross matrix. Then, the higher order ODU (HO _ ODU _ CL) particles configure a higher order cross matrix and create a related protection channel, and the service flow after creation is as shown in fig. 3. In fig. 3, client _1-client _ N are low-rate services of the N groups at the low-order client side, and LO _ ODU _1-LO _ ODU _ N are low-order sub-particles matched with client _1-client _ N; HO _ ODU _ CL is a high-order client side particle; HO _ ODU _ W is a high-order line side working unit; the HO _ ODU _ P1 is a first path of protection channel at the high-order line side; and the HO _ ODU _ PN is an Nth protection channel at the high-order line side.
Further, when a switching trigger condition corresponding to each group of low-order services is queried in an interruption and/or polling manner, data transmission between HO _ ODU _ CL and HO _ ODU _ W is disconnected, and a transmittable high-order line side channel HO _ ODU _ P1 is selected to continue transmitting data. Illustratively, the switched traffic flow is shown in fig. 4.
In the above example, at least one set of low-level services is aggregated to a high-level client-side service; establishing at least one protection switching mechanism at a high-order client side; when receiving the switching triggering condition, switching the link between the high-order client side and the standby side of a high-order line according to the protection switching mechanism. The method and the device realize the switching of multiple groups of low-order services in the OTN, reduce the time consumption of the switching, simultaneously avoid increasing the use of network bandwidth, and solve the problem that the switching time is longer because the switching of each low-order service needs to be carried out respectively in the prior art.
It should be noted that, when the switching method according to the embodiment of the present invention is tested, an experimental result shows that, when a failure occurs, the triggering switching time is shortened to 5ms from the original switching time of 20ms to 50 ms. When no fault occurs, the forced switching time is shortened to be within 0.010ms from the original 5 ms.
Example two
Fig. 5 is a schematic structural diagram of an OTN switching device in a second embodiment of the present invention, where the OTN switching device may execute the OTN switching method in the above embodiment, and the OTN switching device may be implemented in a software and/or hardware manner. Specifically, referring to fig. 5, the apparatus includes: a low-order service convergence module 510, a protection switching mechanism establishment module 520, and a switching module 530.
The low-order service convergence module 510 is configured to converge at least one group of low-order services to a high-order client-side service;
a protection switching mechanism establishing module 520, configured to establish at least one protection switching mechanism inside the high-order client side service;
the switching module 530 is configured to switch a link between a high-order client side and a high-order line standby side according to a protection switching mechanism when a switching trigger condition is received.
In this embodiment, at least one group of low-level services is converged to a high-level client side service through a low-level service convergence module; establishing at least one protection switching mechanism in the high-order client side service through a protection switching mechanism establishing module; the switching module switches the link between the high-order client side and the high-order line standby side according to the protection switching mechanism, so that the switching of multiple groups of low-order services in the OTN is realized, the time consumption for switching is reduced, the use of network bandwidth is not increased, and the problem of long switching time caused by the need of respectively switching each low-order service in the prior art is solved.
Optionally, the low-order service convergence module 510 may be further specifically configured to converge at least one group of low-order services to a high-order client service through a many-to-one cross matrix.
Optionally, the low-order service convergence module 510 may be further specifically configured to perform decomposition and multiplexing on the high-order client-side service to obtain a plurality of low-order client sub-particles, where the low-order client sub-particles match the low-order service.
Optionally, the switching module 530 includes: a switching trigger condition query unit, configured to query whether a switching trigger condition corresponding to each group of low-order services is received through an interrupt and/or polling manner; if so, disconnecting the data transmission between the high-order client side and the current high-order line side, and selecting a transmittable high-order line side according to at least one protection switching mechanism to realize the data transmission; if not, whether the switching triggering conditions corresponding to each group of low-order services are received or not is continuously inquired through an interruption and/or polling mode.
The OTN switching device provided in the embodiment of the present invention may execute the OTN switching method provided in any embodiment of the present invention, and has a functional module corresponding to the execution method and a beneficial effect.
EXAMPLE III
The third embodiment of the invention provides electronic equipment and a readable storage medium. Fig. 6 is a block diagram of an electronic device for implementing an OTN switching method according to an embodiment of the present invention, and as shown in fig. 6, the block diagram of the electronic device for implementing the OTN switching method according to any embodiment of the present invention is shown. Electronic devices are intended to represent various forms of digital computers, such as laptops, desktops, workstations, personal digital assistants, servers, blade servers, mainframes, and other appropriate computers. The electronic device may also represent various forms of mobile devices, such as personal digital processing, cellular phones, smart phones, wearable devices, and other similar computing devices. The components shown herein, their connections and relationships, and their functions, are meant to be exemplary only, and are not meant to limit implementations of the inventions described and/or claimed herein.
As shown in fig. 6, the electronic apparatus includes: one or more processors 601, memory 602, and interfaces for connecting the various components, including a high-speed interface and a low-speed interface. The various components are interconnected using different buses and may be mounted on a common motherboard or in other manners as desired. The processor may process instructions for execution within the electronic device, including instructions stored in or on the memory to display graphical information of a GUI on an external input/output apparatus (such as a display device coupled to the interface). In other embodiments, multiple processors and/or multiple buses may be used, along with multiple memories and multiple memories, as desired. Also, multiple electronic devices may be connected, with each device providing portions of the necessary operations (e.g., as a server array, a group of blade servers, or a multi-processor system). In fig. 6, one processor 601 is taken as an example.
The memory 602 is a non-transitory computer readable storage medium provided by the present invention. The memory stores instructions executable by at least one processor, so that the at least one processor executes the OTN switching method provided by the present invention. The non-transitory computer readable storage medium of the present invention stores computer instructions for causing a computer to execute the OTN switching method provided by the present invention.
The memory 602, serving as a non-transitory computer readable storage medium, may be used to store non-transitory software programs, non-transitory computer executable programs, and modules, such as program modules corresponding to the OTN switching method in the present invention (for example, the low-order traffic aggregation module 510, the protection switching mechanism establishing module 520, and the switching module 530 shown in fig. 5). The processor 601 executes various functional applications and data processing of the server by running the non-transitory software programs, instructions and modules stored in the memory 602, that is, the OTN switching method in the above method embodiment is implemented.
Namely: converging at least one group of low-order services to high-order client side services;
establishing at least one protection switching mechanism at a high-order client side;
when receiving the switching triggering condition, switching the link between the high-order client side and the standby side of a high-order line according to the protection switching mechanism.
The memory 602 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created from use of the transmission electronics of the low-rate signal, and the like. Further, the memory 602 may include high speed random access memory, and may also include non-transitory memory, such as at least one magnetic disk storage device, flash memory device, or other non-transitory solid state storage device. In some embodiments, the memory 602 may optionally include memory located remotely from the processor 601, which may be connected to the low-rate signal transmission electronics via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The electronic device of the OTN switching method may further include: an input device 603 and an output device 604. The processor 601, the memory 602, the input device 603 and the output device 604 may be connected by a bus or other means, and fig. 6 illustrates the connection by a bus as an example.
The input device 603 may receive input numeric or character information and generate key signal inputs related to user settings and function control of the transmitting electronics for the low rate signals, such as a touch screen, keypad, mouse, track pad, touch pad, pointer stick, one or more mouse buttons, track ball, joystick, etc. input devices. The output devices 604 may include a display device, auxiliary lighting devices (e.g., LEDs), and tactile feedback devices (e.g., vibrating motors), among others. The display device may include, but is not limited to, a Liquid Crystal Display (LCD), a Light Emitting Diode (LED) display, and a plasma display. In some implementations, the display device can be a touch screen.
Various implementations of the systems and techniques described here can be realized in digital electronic circuitry, integrated circuitry, application specific ASICs (application specific integrated circuits), computer hardware, firmware, software, and/or combinations thereof. These various embodiments may include: implemented in one or more computer programs that are executable and/or interpretable on a programmable system including at least one programmable processor, which may be special or general purpose, receiving data and instructions from, and transmitting data and instructions to, a storage system, at least one input device, and at least one output device.
These computer programs (also known as programs, software applications, or code) include machine instructions for a programmable processor, and may be implemented using high-level procedural and/or object-oriented programming languages, and/or assembly/machine languages. As used herein, the terms "machine-readable medium" and "computer-readable medium" refer to any computer program product, apparatus, and/or device (e.g., magnetic discs, optical disks, memory, Programmable Logic Devices (PLDs)) used to provide machine instructions and/or data to a programmable processor, including a machine-readable medium that receives machine instructions as a machine-readable signal. The term "machine-readable signal" refers to any signal used to provide machine instructions and/or data to a programmable processor.
To provide for interaction with a user, the systems and techniques described here can be implemented on a computer having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to a user; and a keyboard and a pointing device (e.g., a mouse or a trackball) by which a user can provide input to the computer. Other kinds of devices may also be used to provide for interaction with a user; for example, feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user may be received in any form, including acoustic, speech, or tactile input.
The systems and techniques described here can be implemented in a computing system that includes a back-end component (e.g., as a data server), or that includes a middleware component (e.g., an application server), or that includes a front-end component (e.g., a user computer having a graphical user interface or a web browser through which a user can interact with an implementation of the systems and techniques described here), or any combination of such back-end, middleware, or front-end components. The components of the system can be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: local Area Networks (LANs), Wide Area Networks (WANs), and the Internet.
The computer system may include clients and servers. A client and server are generally remote from each other and typically interact through a communication network. The relationship of client and server arises by virtue of computer programs running on the respective computers and having a client-server relationship to each other.
According to the technical scheme of the embodiment of the invention, the switching of a plurality of groups of low-order services in the OTN is realized, the time consumption for switching is reduced, the use of network bandwidth is not increased, and the problem of long switching time caused by the need of respectively switching each low-order service in the prior art is solved.
It should be understood that various forms of the flows shown above may be used, with steps reordered, added, or deleted. For example, the steps described in the present application may be executed in parallel, sequentially, or in different orders, and are not limited herein as long as the desired results of the technical solutions disclosed in the present invention can be achieved.
The above-described embodiments should not be construed as limiting the scope of the invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions may be made in accordance with design requirements and other factors. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An OTN switching method for an optical transport network, comprising:
converging at least one group of low-order services to high-order client side services;
establishing at least one protection switching mechanism at the high-order client side;
when receiving the switching triggering condition, switching the link between the high-order client side and a high-order line standby side according to a protection switching mechanism.
2. The method of claim 1, wherein aggregating at least one set of low order traffic to high order client side traffic comprises:
and converging at least one group of the low-order services to the high-order client side services through a many-to-one cross matrix.
3. The method according to claim 2, wherein the aggregating at least one group of the low-order services to the high-order client-side services through a many-to-one cross matrix specifically comprises:
and decomposing and multiplexing the high-order client side service to obtain a plurality of low-order client sub-particles, wherein the low-order client sub-particles are matched with the low-order service.
4. The method according to any of claims 1-3, wherein when receiving a switching trigger condition, switching a link between the higher-order client side and a higher-order line standby side according to a protection switching mechanism, comprises:
inquiring whether a switching trigger condition corresponding to each group of low-order services is received or not in an interruption and/or polling mode;
if so, disconnecting the data transmission between the high-order client side and the current high-order line side, and selecting a transmittable high-order line side according to the at least one protection switching mechanism to realize the data transmission;
if not, whether the switching triggering conditions corresponding to each group of low-order services are received or not is continuously inquired through an interruption and/or polling mode.
5. An OTN switching device, comprising:
the low-order service convergence module is used for converging at least one group of low-order services to high-order client side services;
a protection switching mechanism establishing module, configured to establish at least one protection switching mechanism inside the high-order client side service;
and the switching module is used for switching the link between the high-order client side and a high-order line standby side according to a protection switching mechanism when a switching triggering condition is received.
6. The apparatus according to claim 5, wherein the low-order traffic aggregation module is specifically configured to aggregate at least one group of the low-order traffic to the high-order client-side traffic through a many-to-one cross matrix.
7. The apparatus of claim 6, wherein the low-order service convergence module is further configured to decompose and multiplex the high-order client-side service to obtain a plurality of low-order client sub-particles, and the low-order client sub-particles match the low-order service.
8. The apparatus of any of claims 5-7, wherein the switching module comprises:
a switching trigger condition query unit, configured to query whether a switching trigger condition corresponding to each group of low-order services is received through an interrupt and/or polling manner;
if so, disconnecting the data transmission between the high-order client side and the current high-order line side, and selecting a transmittable high-order line side according to the at least one protection switching mechanism to realize the data transmission;
if not, whether the switching triggering conditions corresponding to each group of low-order services are received or not is continuously inquired through an interruption and/or polling mode.
9. An electronic device, comprising:
at least one processor; and
a memory communicatively coupled to the at least one processor; wherein the content of the first and second substances,
the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the OTN switching method of any of claims 1-4.
10. A storage medium containing computer-executable instructions, which when executed by a computer processor, are configured to perform the OTN switching method of any one of claims 1-4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911382506.2A CN111131935B (en) | 2019-12-27 | 2019-12-27 | OTN switching method, device, equipment and storage medium |
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