CN112653941B - Optical transport network protection method, device and computer readable storage medium - Google Patents
Optical transport network protection method, device and computer readable storage medium Download PDFInfo
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- CN112653941B CN112653941B CN202011502799.6A CN202011502799A CN112653941B CN 112653941 B CN112653941 B CN 112653941B CN 202011502799 A CN202011502799 A CN 202011502799A CN 112653941 B CN112653941 B CN 112653941B
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- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
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- H04Q2011/0081—Fault tolerance; Redundancy; Recovery; Reconfigurability
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Abstract
The embodiment of the invention provides a protection method, a device and a computer readable storage medium of an optical transmission network, wherein the method comprises the steps of judging whether line faults exist on preset routing direction information in the optical transmission network, if so, determining a target optical splitter corresponding to target routing direction information with the line faults and an optical channel corresponding to the target optical splitter, switching the optical channel corresponding to the target optical splitter to a conducting state, and sending service data corresponding to each service node in the optical transmission network to a core aggregation node for processing through the optical channel in the conducting state so as to realize the service corresponding to each service node. The embodiment realizes the transmission of service data across service nodes, thereby ensuring the normal realization of each service.
Description
Technical Field
The embodiment of the invention relates to the field of optical communication, in particular to a method and a device for protecting an optical transmission network and a computer readable storage medium.
Background
Network survivability, which is the ability of a network to maintain an acceptable quality of service level when subjected to various failures, is a key factor in modern network planning design and operation and is also an important component of network integrity. The survivability of the optical network is based on shared resources and dynamic recovery resources. Among various survivability technologies of the optical network, the survivability technology of the optical layer has the characteristics of quick and flexible response, can effectively improve the service quality of the network and reduce the loss of service, and therefore has very important significance for the survivability research of the optical layer. The survivability of the optical layer comprises two kinds of protection of the optical transmission network and recovery of the optical transmission network.
Optical transport network protection refers to providing reserved protection resources for bearer traffic of an optical network, and when the network fails, affected traffic is routed to a pre-assigned protection route for transmission, so as to recover the affected traffic.
However, in the current protection mode of the optical transmission network, optical cables with different routes are generally required to be routed between two service nodes on the optical cable route, and then optical cables with different routes are adopted to extract optical fiber cores to perform OLP (Optical Fiber Line Auto Switch Protection Equipment, optical fiber line automatic switching protection device) protection of the point-to-point optical line, but when the service nodes are crossed, even if other optical cable routes with spare fiber cores are not realized in a proper mode, the normal realization of the service is affected.
Disclosure of Invention
The embodiment of the invention provides a method and a device for protecting an optical transport network and a computer readable storage medium, so as to realize transmission of cross-service nodes and further ensure normal realization of services.
In a first aspect, an embodiment of the present invention provides a method for protecting an optical transport network, including:
judging whether line faults exist on each preset routing direction information in the optical transmission network;
if the optical path exists, determining a target optical splitter corresponding to the target routing direction information of the line fault and an optical channel corresponding to the target optical splitter;
and switching the optical channel corresponding to the target optical splitter to a conducting state, and sending the service data corresponding to each service node in the optical transmission network to a core aggregation node for processing through the optical channel in the conducting state so as to realize the service corresponding to each service node.
Optionally, the determining whether a line fault exists in each preset routing direction information in the optical transport network includes:
acquiring a preset routing direction information set corresponding to an optical transmission network, wherein the preset routing direction set is provided with a plurality of pieces of preset routing direction information;
and sequentially judging whether line faults exist on each piece of preset routing direction information in the preset routing direction information set.
Optionally, the optical transmission network includes an optical switch, where the optical switch is disposed at a service node including a multiplexer/demultiplexer, and the switching of an optical channel corresponding to the target optical splitter to a conducting state, and sending service data corresponding to each service node in the optical transmission network to a core aggregation node for processing through the optical channel in the conducting state, so as to implement a service corresponding to each service node, includes:
switching an optical channel corresponding to the target optical splitter to a conducting state through the optical switch;
and sending the service data corresponding to each service node in the optical transmission network to a core aggregation node for processing through an optical channel in a conducting state and the multiplexer-demultiplexer so as to realize the service corresponding to each service node.
Optionally, before the determining whether the line fault exists in each preset routing direction information in the optical transport network, the method further includes:
judging whether target preset routing information of a spare fiber core exists among the cross nodes of each service node in the optical transmission network or not based on a preset judging rule;
if the service data exists, starting a beam splitter at a target node corresponding to the target preset routing information through a first starting instruction, so that the service data corresponding to each service node is sent to a core aggregation node for processing through the routing line information corresponding to the beam splitter at the target node.
Optionally, after the sending the service data corresponding to each service node in the optical transport network to the core aggregation node through the optical channel in the on state for processing to implement the service corresponding to each service node, the method further includes:
determining data attenuation information when service data corresponding to each service node are transmitted through an optical channel in a conducting state;
judging whether the data attenuation information meets a preset attenuation standard or not;
if yes, continuing to send the service data corresponding to each service node in the optical transmission network to the core aggregation node through the optical channel in the on state for processing so as to realize the service corresponding to each service node.
Optionally, the method further comprises:
if the service data does not meet the requirements, an optical line amplifier connected with the target optical splitter is started through a second starting instruction, service data corresponding to each service node in the optical transmission network is transmitted to a core aggregation node for processing through an optical channel in a conducting state, and the optical line amplifier is used for realizing the service corresponding to each service node.
In a second aspect, an embodiment of the present invention provides an optical transport network protection device, including:
a processor, a core aggregation node, each service node, an optical splitter, a combiner-splitter and an optical switch,
the optical splitter is arranged at a target service node corresponding to target preset routing information with a spare fiber core between the cross nodes of each service node in the optical transmission network;
the wave combining and dividing device is arranged at a service node corresponding to the spare fiber core of the target node;
the optical switch is connected with the multiplexer/demultiplexer and is used for controlling the connection and disconnection of the optical channel corresponding to the optical splitter;
and the processor is used for switching the optical channel corresponding to the optical splitter to a conducting state when determining that the line fault exists in the preset routing direction information, and transmitting the service data corresponding to each service node in the optical transmission network to the core aggregation node for processing through the optical channel in the conducting state, so as to realize the service corresponding to each service node.
Optionally, the device further comprises an optical line amplifier, and the optical line amplifier is connected with the optical splitter;
and when the processor determines that the data attenuation information does not meet the preset attenuation standard, starting an optical line amplifier connected with the optical splitter through an opening instruction, and sending service data corresponding to each service node in the optical transmission network to a core aggregation node for processing through an optical channel in a conducting state, so as to realize the service corresponding to each service node.
In a third aspect, an embodiment of the present invention provides a computer-readable storage medium, where computer-executable instructions are stored, and when executed by a processor, implement the optical transport network protection method according to any one of the first aspects.
In a fourth aspect, embodiments of the present invention provide a computer program product comprising a computer program which, when executed by a processor, implements the optical transport network protection method according to the first aspect and the various possible designs of the first aspect.
The embodiment of the invention provides a protection method, a device and a computer readable storage medium for an optical transmission network, which can judge whether line faults exist on each preset route information in the optical transmission network firstly by adopting the scheme, if so, a target optical splitter corresponding to the target route direction information of the line faults and an optical channel corresponding to the target optical splitter are determined, then the optical channel corresponding to the target optical splitter can be switched to a conducting state, then service data corresponding to each service node in the optical transmission network are sent to a core aggregation node for processing through the optical channel in the conducting state, so that the service corresponding to each service node is realized.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the invention, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.
Fig. 1 is a schematic architecture diagram of an application system of an optical transport network protection method according to an embodiment of the present invention;
fig. 2 is a schematic flow chart of an optical transport network protection method according to an embodiment of the present invention;
fig. 3 is a flowchart of a method for protecting an optical transport network according to another embodiment of the present invention;
fig. 4 is an application schematic diagram of an optical transport network protection method according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The terms "first," "second," "third," "fourth" and the like in the description and in the claims and in the above drawings, if any, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the invention described herein may be capable of including other sequential examples in addition to those illustrated or described. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In the prior art, optical transport network protection refers to providing reserved protection resources for bearer services of an optical network, and when a network fails, affected services are arranged to a pre-allocated protection route for transmission, so as to recover the affected services. However, in the current protection mode of the optical transmission network, in the routing of the optical cable line, the optical cable with different routes is generally required between two service nodes, and then the optical cable on different routes is adopted to extract the optical fiber core, so as to perform OLP (Optical Fiber Line Auto Switch Protection Equipment, automatic switching protection device for optical fiber line) protection of the point-to-point optical line, for example: concurrent, selective, concurrent and combination thereof, and the like. However, when the service node is crossed, even if other optical cable routes with spare fiber cores exist, no proper mode is realized at present, and normal realization of the service is affected.
Based on the problems, when the line fails, the optical channel corresponding to the target optical splitter is adopted to transmit the data corresponding to each service node, so that the mode of each service is realized, the transmission of the service data across the service nodes is realized, and the normal realization of the service is further ensured.
Fig. 1 is a schematic architecture diagram of an application system of an optical transport network protection method according to an embodiment of the present invention, where, as shown in fig. 1, the application system may include: the optical transport network may include a core aggregation node 101, a service node 102, and a relay node 103, where there may be multiple service nodes 102, which may represent different services, and the service node 102 may determine corresponding service data, and then send the corresponding service data to the core aggregation node 101 through other service nodes 102 or related relay nodes 103, so as to implement a corresponding service.
In addition, the application system may further include an optical splitter 104, where the optical splitter 104 is disposed at a target node corresponding to target preset routing information where a spare fiber core exists between each service node span nodes in the optical transport network. The target node may be a service node or a relay node.
Further, the application system may further include a combiner/demultiplexer 105 and an optical switch 106, where the combiner/demultiplexer 105 is disposed at a service node corresponding to the spare fiber core of the target node, and the optical switch 106 is connected to the combiner/demultiplexer 105, and is used to control on/off of an optical channel corresponding to the optical splitter.
In addition, the application system may further include a processor, where the processor is configured to switch an optical channel corresponding to the optical splitter to a conducting state when it is determined that a line fault exists in the preset routing direction information, and send service data corresponding to each service node in the optical transmission network to the core aggregation node through the optical channel in the conducting state and the combining and splitting device to process the service data corresponding to each service node, so as to implement a service corresponding to each service node.
The technical scheme of the invention is described in detail below by specific examples. The following embodiments may be combined with each other, and some embodiments may not be repeated for the same or similar concepts or processes.
Fig. 2 is a flow chart of an optical transport network protection method according to an embodiment of the present invention, where the method of the present embodiment may be executed by a processor. As shown in fig. 2, the method of the present embodiment may include:
s201: and judging whether line faults exist on each preset routing direction information in the optical transmission network.
In this embodiment, there may be a plurality of different service nodes and relay nodes in the optical transport network, where different service nodes and relay nodes may form different routing direction information, when determining whether a line fault exists in the optical transport network, each predetermined routing direction information may be sequentially determined, and whether a line fault exists in each predetermined routing direction information is determined, if not, it indicates that there is no line fault in the optical transport network, and if a line fault exists in any target predetermined routing direction information, it indicates that a line fault exists in the optical transport network.
Further, determining whether a line fault exists in each preset routing direction information in the optical transport network may include:
and acquiring a preset routing direction information set corresponding to the optical transmission network, wherein a plurality of pieces of preset routing direction information are in the preset routing direction set. And sequentially judging whether line faults exist on each piece of preset routing direction information in the preset routing direction information set.
Specifically, the preset routing direction information set is determined according to the position distribution information of the core aggregation node, the service node and the relay node in the optical transmission network, and is all line information which can be realized. The core aggregation node, the service node and the relay node can transmit service data in a single-fiber bidirectional communication mode, and can also transmit service data in a double-fiber bidirectional communication mode.
S202: if the route fault exists, determining a target beam splitter corresponding to the target route direction information of the line fault and an optical channel corresponding to the target beam splitter.
In this embodiment, when it is determined that a line fault exists in the optical transport network, a target optical splitter having target routing direction information of the line fault and an optical channel corresponding to the target optical splitter are determined.
Further, when determining the optical channel corresponding to the target optical splitter, the core aggregation node connected to the tandem end of the target optical splitter and other service nodes respectively connected to other optical splitters may be determined first, then the node of the newly added optical splitter is determined, and the optical channel corresponding to the target optical splitter is determined according to the core aggregation node connected to the tandem end of the target optical splitter, the other service nodes respectively connected to other optical splitters, and the node of the newly added optical splitter.
S203: and switching the optical channel corresponding to the target optical splitter to a conducting state, and sending the service data corresponding to each service node in the optical transmission network to the core aggregation node for processing through the optical channel in the conducting state so as to realize the service corresponding to each service node.
In this embodiment, the optical channels corresponding to the target optical splitters have two states, one is in an on state and the other is in an off state, and when no line fault is detected in the optical transmission network, the optical channels corresponding to the target optical splitters may be in the off state, that is, service data may be transmitted without the optical channels corresponding to the optical splitters, and service data may be directly transmitted through normal optical channels. When a line fault is detected in the optical transmission network, in order to avoid the situation that service data is sent to the core aggregation node service total resistance, the service data can be transmitted through an optical channel corresponding to the optical splitter, so that normal realization of the service is ensured.
Further, the optical transmission network may include an optical switch, where the optical switch is disposed at a service node including a combiner/divider, and the optical switch is configured to switch an optical channel corresponding to the target optical splitter to a conducting state, and send service data corresponding to each service node in the optical transmission network to a core aggregation node for processing through the optical channel in the conducting state, so as to implement a service corresponding to each service node, and specifically may include:
and switching the optical channel corresponding to the target optical splitter to a conducting state through an optical switch.
And sending the service data corresponding to each service node in the optical transmission network to the core sink node for processing through the optical channel in the on state and the multiplexer/demultiplexer so as to realize the service corresponding to each service node.
After the scheme is adopted, whether line faults exist on each piece of preset routing information in the optical transmission network can be judged first, if so, a target optical splitter corresponding to the target routing direction information of the line faults and an optical channel corresponding to the target optical splitter are determined, then the optical channel corresponding to the target optical splitter can be switched to a conducting state, service data corresponding to each service node in the optical transmission network are sent to a core sink node for processing through the optical channel in the conducting state, so that the service corresponding to each service node is realized, and when the line faults, the data corresponding to each service node is transmitted by adopting the optical channel corresponding to the target optical splitter, so that the mode of realizing each service is realized, the transmission of service data across the service nodes is realized, and the normal realization of each service is further ensured.
The examples of the present specification also provide some specific embodiments of the method based on the method of fig. 2, which is described below.
Fig. 3 is a flow chart of an optical transport network protection method according to another embodiment of the present invention, as shown in fig. 3, where before S201, the method of this embodiment may further include:
s301: and judging whether target preset routing information of spare fiber cores exists among the cross nodes of each service node in the optical transmission network or not based on a preset judging rule.
S302: if the service data exists, the beam splitters at the target nodes corresponding to the target preset routing information are started through the first starting instruction, so that the service data corresponding to each service node are sent to the core aggregation node for processing through the routing line information corresponding to the beam splitters at the target nodes.
In this embodiment, an optical splitter may be set at a target node where a vacant fiber core exists between cross nodes of each service node, and then when it is determined that a fault exists in target preset routing information where the optical splitter is located, the optical splitter at the target node is turned on by a first turn-on instruction generated by the controller, so that service data corresponding to each service node is sent to the core aggregation node for processing through routing line information corresponding to the optical splitter.
In addition, the target preset routing information for determining whether a vacant fiber core exists between the cross nodes of each service node in the optical transmission network based on the preset determination rule can be determined by referring to the existing determination rule, and will not be discussed in detail herein.
Further, in another embodiment, after S203, it may further include:
and determining data attenuation information when service data corresponding to each service node are transmitted through the optical channel in the on state.
And judging whether the data attenuation information meets a preset attenuation standard or not.
If yes, continuing to send the service data corresponding to each service node in the optical transmission network to the core aggregation node through the optical channel in the on state for processing so as to realize the service corresponding to each service node.
In this embodiment, when service data corresponding to each service node is transmitted through an optical channel corresponding to an optical splitter, the attenuation condition of the data may be increased, so that in order to ensure normal implementation of the service, the attenuation condition of the data needs to be controlled within a preset range, so that data attenuation information when service data corresponding to each service node is transmitted through an optical channel in a conducting state may be determined first, then whether the data attenuation information meets a preset attenuation standard is determined, and if yes, the service data corresponding to each service node in an optical transmission network is continuously sent to a core aggregation node for processing through the optical channel in the conducting state, so as to implement the service corresponding to each service node. If the service data does not meet the requirement, an optical line amplifier connected with the target optical splitter is started through a second starting instruction, service data corresponding to each service node in the optical transmission network is transmitted to the core aggregation node for processing through the optical channel in the on state, and the service corresponding to each service node is realized. Illustratively, the optical line amplifier may be a ZXMP S385, L0045212, or the like.
The preset attenuation standard may be set according to the actual application scenario in a customized manner, which is not specifically limited herein.
In addition, whether line faults exist in each piece of preset routing direction information in the optical transmission network can be detected once every preset time length, and if no line faults exist in each piece of preset routing direction information in the optical transmission network, service data corresponding to each service node can be transmitted through an optical channel corresponding to the original preset routing direction information, so that each service is realized.
Fig. 4 is an application schematic diagram of an optical transport network protection method according to an embodiment of the present invention, as shown in fig. 4, in this embodiment, there may be a plurality of nodes on the optical transport network, where N is any node on the optical transport network, a is a core aggregation node on the optical transport network, and B is a service node or a relay node on the optical transport network, and C is a service node or a relay node, respectively. Other optical cable routing information of each node crossing the node and whether the spare fiber cores exist can be checked first. Correspondingly, at a place D between the place A and the place C of the optical transmission network, an optical cable line route with a spare fiber core is connected with the place B, an optical splitter is inserted at the place D, one end of the optical splitter is connected with an optical fiber in the direction A, the other two ends of the optical splitter are respectively connected with an optical fiber in the direction B and an optical fiber in the direction C, and the optical splitter splits light according to the distance of the optical cable fiber in the direction B and the optical fiber attenuation value actually measured. That is, if there is another optical cable route having a spare core with a multi-directional service node or a relay node, the optical splitter splits its optical ratio according to the distance between optical fibers of the optical cable in each direction or the actually measured attenuation value of the optical fiber.
In addition, at the point of adding a B-site to which a D-site optical cable is connected, an optical transmission network using an optical switch for the node is added to add a B-site multiplexer/demultiplexer, and the optical transmission network directs an optical channel to be protected to the added multiplexer/demultiplexer when necessary. Correspondingly, it can be firstly determined whether the newly added insertion attenuation and optical fiber line attenuation meet the preset optical attenuation standard after the optical splitter, the combiner/splitter at the ground, the optical switch at the ground and the protection optical cable are added at the ground D, if not, the optical line amplifier OA is added in front of the junction end of the optical splitter at the ground D, and if so, the optical line amplifier is not added. In this embodiment, the newly added add attenuation and fiber line attenuation do not meet the preset optical attenuation criteria, requiring the addition of an optical line amplifier. When the optical fiber faults occur, if any section from A to N to B, B to C or any section from A to N to B, D to C, the protection optical channel from B to D is started, the protection optical channel is reversely connected to the combining wave splitter by the optical switch, and the total resistance of the core convergence node optical transmission network service from B to C to A is avoided by protecting the optical fiber from B to D and the optical splitter from D. And after the fault is recovered, sending service data corresponding to each service node to the aggregation core node again through the optical channel corresponding to the preset routing information.
Based on the same thought, the embodiment of the specification also provides a device corresponding to the method, and the device may include: the system comprises a processor, a core aggregation node, service nodes, an optical splitter, a combiner-divider and an optical switch.
The optical splitter is arranged at a target service node corresponding to target preset routing information with a spare fiber core between the cross nodes of each service node in the optical transmission network.
The multiplexer/demultiplexer is arranged at a service node corresponding to the spare fiber core of the target node.
The optical switch is connected with the combiner-divider and is used for controlling the on-off of the optical channel corresponding to the optical divider.
And the processor is used for switching the optical channel corresponding to the optical splitter to a conducting state when determining that the line fault exists in the preset routing direction information, and transmitting the service data corresponding to each service node in the optical transmission network to the core aggregation node for processing through the optical channel in the conducting state, so as to realize the service corresponding to each service node.
The apparatus may further comprise an optical line amplifier connected to the optical splitter. And when the processor determines that the data attenuation information does not meet the preset attenuation standard, starting an optical line amplifier connected with the optical splitter through an opening instruction, and sending service data corresponding to each service node in the optical transmission network to a core aggregation node for processing through an optical channel in a conducting state, so as to realize the service corresponding to each service node.
The device provided by the embodiment of the present invention can implement the method of the embodiment shown in fig. 2, and its implementation principle and technical effects are similar, and will not be described herein.
The embodiment of the invention also provides a computer readable storage medium, wherein the computer readable storage medium stores computer execution instructions, and when a processor executes the computer execution instructions, the optical transport network protection method of the method embodiment is realized.
The embodiment of the invention also provides a computer program product, comprising a computer program which, when being executed by a processor, realizes the optical transport network protection method as described above.
The computer readable storage medium described above may be implemented by any type of volatile or non-volatile memory device or combination thereof, such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk, or optical disk. A readable storage medium can be any available medium that can be accessed by a general purpose or special purpose computer.
An exemplary readable storage medium is coupled to the processor such the processor can read information from, and write information to, the readable storage medium. In the alternative, the readable storage medium may be integral to the processor. The processor and the readable storage medium may reside in an application specific integrated circuit (Application Specific Integrated Circuits, ASIC for short). The processor and the readable storage medium may reside as discrete components in a device.
Those of ordinary skill in the art will appreciate that: all or part of the steps for implementing the method embodiments described above may be performed by hardware associated with program instructions. The foregoing program may be stored in a computer readable storage medium. The program, when executed, performs steps including the method embodiments described above; and the aforementioned storage medium includes: various media that can store program code, such as ROM, RAM, magnetic or optical disks.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (4)
1. An optical transport network protection device, the device comprising:
a processor, a core aggregation node, each service node, an optical splitter, a combiner-splitter, an optical switch and an optical line amplifier,
the optical splitter is arranged at a target service node corresponding to target preset routing information with a spare fiber core between the cross nodes of each service node in the optical transmission network;
the wave combining and dividing device is arranged at a service node corresponding to the spare fiber core of the target service node;
the optical switch is connected with the multiplexer/demultiplexer and is used for controlling the connection and disconnection of the optical channel corresponding to the optical splitter;
the optical line amplifier is connected with the optical splitter;
the processor is configured to:
judging whether line faults exist on each preset routing direction information in the optical transmission network;
if the optical path exists, determining a target optical splitter corresponding to the target routing direction information of the line fault and an optical channel corresponding to the target optical splitter;
switching an optical channel corresponding to the target optical splitter to a conducting state through the optical switch;
transmitting service data corresponding to each service node in the optical transmission network to a core aggregation node for processing through an optical channel in a conducting state and the multiplexer-demultiplexer to realize the service corresponding to each service node;
determining data attenuation information when service data corresponding to each service node are transmitted through an optical channel in a conducting state;
judging whether the data attenuation information meets a preset attenuation standard or not;
if yes, continuing to send the service data corresponding to each service node in the optical transmission network to the core aggregation node through the optical channel in the on state for processing so as to realize the service corresponding to each service node;
if the service data does not meet the requirements, an optical line amplifier connected with the target optical splitter is started through a second starting instruction, service data corresponding to each service node in the optical transmission network is transmitted to a core aggregation node for processing through an optical channel in a conducting state, and the optical line amplifier is used for realizing the service corresponding to each service node.
2. An optical transport network protection method applied to the device of claim 1, comprising:
judging whether line faults exist on each preset routing direction information in the optical transmission network;
if the optical path exists, determining a target optical splitter corresponding to the target routing direction information of the line fault and an optical channel corresponding to the target optical splitter;
switching an optical channel corresponding to the target optical splitter to a conducting state through an optical switch;
transmitting service data corresponding to each service node in the optical transmission network to a core aggregation node for processing through an optical channel in a conducting state and a multiplexer/demultiplexer so as to realize the service corresponding to each service node;
determining data attenuation information when service data corresponding to each service node are transmitted through an optical channel in a conducting state;
judging whether the data attenuation information meets a preset attenuation standard or not;
if yes, continuing to send the service data corresponding to each service node in the optical transmission network to the core aggregation node through the optical channel in the on state for processing so as to realize the service corresponding to each service node;
if the service data does not meet the requirements, an optical line amplifier connected with the target optical splitter is started through a second starting instruction, service data corresponding to each service node in the optical transmission network is transmitted to a core aggregation node for processing through an optical channel in a conducting state, and the optical line amplifier is used for realizing the service corresponding to each service node.
3. The method of claim 2, wherein said determining whether a line fault exists in each of the predetermined routing direction information in the optical transport network comprises:
acquiring a preset routing direction information set corresponding to an optical transmission network, wherein the preset routing direction information set is provided with a plurality of preset routing direction information;
and sequentially judging whether line faults exist on each piece of preset routing direction information in the preset routing direction information set.
4. A computer readable storage medium having stored therein computer executable instructions which, when executed by a processor, implement the optical transport network protection method of any one of claims 2 to 3.
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| CN101267259A (en) * | 2008-05-13 | 2008-09-17 | 杭州华三通信技术有限公司 | Optical fiber protection system and device in passive optical network |
| CN103959684A (en) * | 2011-11-22 | 2014-07-30 | 日本电信电话株式会社 | Self-diagnostic method for PON protection system, and PON protection system |
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| US7672546B2 (en) * | 2001-10-09 | 2010-03-02 | Infinera Corporation | Optical transport network having a plurality of monolithic photonic integrated circuit semiconductor chips |
| JP2018064207A (en) * | 2016-10-13 | 2018-04-19 | 富士通株式会社 | Management device and wavelength setting method |
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| CN101267259A (en) * | 2008-05-13 | 2008-09-17 | 杭州华三通信技术有限公司 | Optical fiber protection system and device in passive optical network |
| CN103959684A (en) * | 2011-11-22 | 2014-07-30 | 日本电信电话株式会社 | Self-diagnostic method for PON protection system, and PON protection system |
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