CN110830106B - Optical channel protection method, device, equipment and computer readable storage medium - Google Patents
Optical channel protection method, device, equipment and computer readable storage medium Download PDFInfo
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- CN110830106B CN110830106B CN201810898154.5A CN201810898154A CN110830106B CN 110830106 B CN110830106 B CN 110830106B CN 201810898154 A CN201810898154 A CN 201810898154A CN 110830106 B CN110830106 B CN 110830106B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- 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
- 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
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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
- H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
- H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
- H04B10/079—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
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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
- H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
- H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
- H04B10/079—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
- H04B10/0795—Performance monitoring; Measurement of transmission parameters
- H04B10/07955—Monitoring or measuring power
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Abstract
The invention discloses a method, a device, equipment and a computer readable storage medium for protecting an optical channel, wherein the method comprises the following steps: monitoring that a first optical channel is in an interruption state, and determining an upper intersection and a lower intersection of the first optical channel; the first optical channel is a channel formed by the upper intersection, the first group path outlet, the first group path inlet and the lower intersection, and the first optical channel is used for transmitting first optical channel services; determining a second group of outlets and a second group of inlets; the second group outlet and the first group outlet are different group outlets of a first optical cross plate, and the second group inlet and the first group inlet are different group inlets of a second optical cross plate; determining a second optical channel according to the upper intersection, the second group of road outlets, the second group of road inlets and the lower intersection; and transmitting the first optical channel service through the second optical channel.
Description
Technical Field
The embodiment of the invention relates to the field of optical communication, in particular to but not limited to an optical channel protection method, an optical channel protection device, optical channel protection equipment and a computer readable storage medium.
Background
In a conventional Optical Channel (OCH) service protection method of an Optical Transport Network (OTN), an Optical Protection (OP) board is configured at each source end or destination end of a service. At the service transmitting end, the transmitting end of the OCH service board is connected to the receiving end of the transmitting end OP board, the transmitting end OP board copies the Optical signals into two parts, the Optical signals are respectively transmitted from the transmitting end 1 and the transmitting end 2, and the two ports respectively transmit different Optical Multiplexing Section (OMS) service layers, that is, the source ends are dual-transmitting. At the service destination, the two optical signals are respectively connected with the receiving port 1 and the receiving port 2 of the receiving port OP board, the receiving port OP board judges the current two optical signals, and sends the optical signals with higher quality to the OCH service board at the destination, that is, the destination receives preferentially. This is the traditional 1+1 protection of OCH. However, this method has the following disadvantages: firstly, the method can only select two paths of double-emitting optical signals, and if the two paths of signals can not meet the requirement of the host end service or the optical fibers of the OMS of the service layer where the two paths of services are located are broken, the service is interrupted at the moment; secondly, two OP boards need to be deployed for OCH 1+1 protection, and if the existing network has N OCH services, 2N OP boards are needed, for example, if the existing network has 1000 OCH services, 2000 OP boards need to be deployed, which is very costly.
The traditional 1: the N (N is greater than or equal to 1) method is to use 1 OCH to protect N OCHs, although the number of wavelengths can be saved compared with 1+1, only one OCH service can be protected currently, and if the protection channel is broken, the service is completely broken, so the reliability is very poor.
M: the N (M is less than or equal to N) method is also hardware-based, and M idle OCHs are needed to protect N actually running OCH services, where M OCHs need to be planned in advance, and a route of a service layer is fixed, so that there is also a problem that the running N services cannot be protected when M services are interrupted.
It is obvious that OCH service protection reliability in the related art is poor, and protection cost based on hardware OP board is high.
Disclosure of Invention
In view of the above, embodiments of the present invention are intended to provide a method, an apparatus, a device and a computer storage medium for protecting an optical channel.
The technical scheme of the embodiment of the invention is realized as follows:
the embodiment of the invention provides an optical channel protection method, which comprises the following steps:
monitoring that a first optical channel is in an interruption state, and determining an upper intersection and a lower intersection of the first optical channel; the first optical channel is a channel formed by the upper intersection, the first group path outlet, the first group path inlet and the lower intersection, and the first optical channel is used for transmitting first optical channel services;
determining a second group of outlets and a second group of inlets; the second group outlet and the first group outlet are different group outlets of a first optical cross plate, and the second group inlet and the first group inlet are different group inlets of a second optical cross plate;
determining a second optical channel according to the upper intersection, the second group of road outlets, the second group of road inlets and the lower intersection;
and transmitting the first optical channel service through the second optical channel.
An embodiment of the present invention further provides an optical channel protection device, where the device includes: the device comprises a monitoring module, a determining module, a generating module and a transmitting module; wherein the content of the first and second substances,
the monitoring module is used for monitoring that the first optical channel is in an interruption state and determining an upper intersection and a lower intersection of the first optical channel; the first optical channel is a channel formed by the upper intersection, the first group path outlet, the first group path inlet and the lower intersection, and the first optical channel is used for transmitting first optical channel services;
the determining module is used for determining a second group of road outlets and second group of road inlets; the second group outlet and the first group outlet are different group outlets of a first optical cross plate, and the second group inlet and the first group inlet are different group inlets of a second optical cross plate;
the generating module is used for determining a second optical channel according to the upper intersection, the second group of road outlets, the second group of road inlets and the lower intersection;
the transmission module is configured to transmit the first optical channel service through the second optical channel.
The embodiment of the present invention further provides an optical channel protection device, where the device includes a processor and a memory for storing a computer program capable of running on the processor, and when the processor is used to run the computer program, the steps of the optical channel protection method are performed.
An embodiment of the present invention further provides a computer-readable storage medium, where an optical channel protection program is stored on the computer-readable storage medium, and when the optical channel protection program is executed by a processor, the optical channel protection program implements the steps of the optical channel protection method described in any of the foregoing embodiments.
After the first optical channel is determined to be in the interrupted state, the second optical channel is determined according to the path of the first optical channel, the second optical channel is used as a protection channel, and the service of the first optical channel is switched to the protection channel, so that when the first optical channel is interrupted, the second optical channel is calculated in real time in all the optical channels in a software implementation mode, the protection reliability of the OCH service is improved, the protection channel does not need to be set in advance, and a special protection channel based on hardware is not needed, so that the protection cost is reduced.
Drawings
Fig. 1 is a schematic flow chart illustrating an implementation of a method for protecting an optical channel according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an OTN according to a first embodiment of the present invention;
fig. 3 is a schematic flow chart illustrating an implementation of an optical channel protection method according to a second embodiment of the present invention;
fig. 4 is a schematic flow chart illustrating an implementation of an optical channel protection method according to a third embodiment of the present invention;
fig. 5 is a flowchart illustrating an implementation of a method for determining a second OCH according to a third embodiment of the present invention;
fig. 6 is a flowchart illustrating an implementation of a protection recovery method according to a third embodiment of the present invention;
fig. 7 is a schematic structural diagram of an optical channel protection device according to a fourth embodiment of the present invention;
fig. 8 is a first schematic structural diagram of an optical channel protection device according to a fifth embodiment of the present invention;
fig. 9 is a second schematic structural diagram of an optical channel protection device according to a fifth embodiment of the present invention;
fig. 10 is a schematic structural diagram of an optical channel protection device according to a sixth embodiment of the present invention.
Detailed Description
The present invention will be described in further detail below with reference to the accompanying drawings and examples. It should be understood that the examples provided herein are merely illustrative of the present invention and are not intended to limit the present invention. In addition, the following embodiments are provided as partial embodiments for implementing the present invention, not all embodiments for implementing the present invention, and the technical solutions described in the embodiments of the present invention may be implemented in any combination without conflict.
In each embodiment of the invention, when a first optical channel is monitored to be in an interruption state, an upper intersection and a lower intersection of the first optical channel are determined; the first optical channel is a channel formed by the upper intersection, the first group of road outlets, the first group of road inlets and the lower intersection, and the first optical channel is used for transmitting first optical channel services received from the upper intersection to the lower intersection; determining a second group of outlets and a second group of inlets; the second group outlet and the first group outlet are different group outlets of a first optical cross plate, and the second group inlet and the first group inlet are different group inlets of a second optical cross plate; determining a second optical channel according to the upper intersection, the second group of road outlets, the second group of road inlets and the lower intersection; and transmitting the first optical channel service through the second optical channel.
Example one
An embodiment of the present invention provides an optical channel protection method, which is applied to an optical channel protection device, as shown in fig. 1, and includes:
s101, monitoring that a first optical channel is in an interruption state, and determining an upper intersection and a lower intersection of the first optical channel;
the first optical channel is a channel formed by the upper intersection, the first group path outlet, the first group path inlet and the lower intersection, and the first optical channel is used for transmitting first optical channel services.
The optical channel protection device may be an OTN management and control platform, and may manage services of an OTN data platform, and each functional module in the optical channel protection device may be cooperatively implemented by hardware resources of a device (such as a terminal device, a server, or a server cluster), such as computing resources such as a processor, and communication resources (such as being used to support communications in various manners such as optical cables and cells). The OTN management and control platform and the OTN data platform may be separate devices or an integrated device.
The OTN data platform may include, as shown in fig. 2, a plurality of OCH service boards, a first cross board, and a second cross board, where an OMS is disposed between the first cross board and the second cross board, and the OMS may include a plurality of Optical Amplifiers (OA) to amplify an Optical signal of the transmitted OCH service during transmission, so as to ensure transmission of the OCH service.
And transmitting the OCH service of the transmitting-end OCH service board to the receiving-end OCH service board through the transmitting-end OCH service board, the first cross board and the second cross board, wherein the first cross board and the second cross board are connected through a plurality of OMSs, and two ends of each OMS are respectively a group outlet of the first cross board and a group inlet of the second cross board. And the OCH service of the transmitting-end OCH service board is transmitted to the upper crossing of the first cross board from the output port. The upper crossing of the first cross board receives the OCH service, the OCH service is transmitted to the OMS corresponding to the group outlet through the group outlet corresponding to the upper crossing, so that the OCH service is transmitted to the group inlet of the second cross board at the other side of the OMS, and the second cross board transmits the OCH service received by the group inlet to the lower crossing and transmits the OCH service to the OCH service board at the receiving end through the lower crossing. Here, the upper intersection and the group exit of the first cross board and the group entrance and the lower intersection of the second cross board form an OCH to transmit the OCH service of the OCH service board corresponding to the upper intersection and transmit the OCH service of the OCH service board corresponding to the upper intersection to the OCH service board corresponding to the lower intersection.
It should be noted that a group outlet can simultaneously send a plurality of OCH services at an upper intersection, the sent plurality of OCH services are combined into one optical signal with different wavelengths and sent to the group outlet, and the optical signal is sent to a group inlet through an OMS corresponding to the group outlet, after receiving the combined optical signal at the group inlet, the optical signal is split into different OCH services with different wavelengths, and each OCH service is sent to a lower intersection corresponding to each OCH service.
In practical application, the path from the upper port to the group port is a unidirectional path, and the OMS between the group port and the group port is a bidirectional path. One cross board can be provided with a group outlet and a group inlet at the same time, thereby realizing the bidirectional transmission of the OCH service.
When the transmission of the OCH service is carried out, the optical channel between the first cross board and the second cross board is monitored, and when the interruption of an OCH is monitored, the OCH is determined to be in an interruption state. The OCH in the interrupted state is called a first OCH, and the OCH traffic in the first OCH transmission is called a first OCH traffic. The group outlet of the first OCH is called as a first group outlet, and the group inlet of the first OCH is called as a first group inlet.
And acquiring an upper intersection and a lower intersection of the first OCH to determine the upper intersection and the lower intersection corresponding to the transmission of the first OCH traffic, wherein the first OCH are used for transmitting the first OCH traffic received from the upper intersection to the lower intersection. Here, the upper intersection and the lower intersection for transmitting the first OCH service are determined, and the originating OCH service board and the terminating OCH service board of the first OCH service can be determined. At this time, the first OCH is in an interrupted state, and the first OCH service of the originating OCH service board corresponding to the upper intersection cannot be transmitted to the terminating OCH service board corresponding to the lower intersection through the first optical channel.
In an embodiment, the monitoring that the first optical channel is in the interrupted state includes; and monitoring that an optical multiplexing section OMS between the first group path outlet and the first group path inlet is in an interrupt state.
Here, determining that the OMS of the first OCH is in the interrupted state may include a plurality of: and when the optical power of at least one port in the OMS is smaller than the power threshold value, the amplification parameters of the OA in the OMS are abnormal, and the like, and at the moment, the first OCH is determined to be in an interruption state. The ports of the OMS include a first group of outlets, a second group of inlets, and ports of each OA, and the power threshold value of each port may be different.
It should be noted that, when the optical fiber corresponding to the OMS is broken or the device is aged, the optical power value of the port in the OMS is too low, and at this time, the OMS may be determined to be in the broken state.
S102, determining a second group outlet and a second group inlet;
and when the first OCH is monitored to be in an interruption state, determining a group of outlets from the group outlets of the first cross board except the first group of outlets as a second group of outlets, and determining a group of inlets from the group inlets of the second cross board except the first group of inlets as a second group of inlets.
Here, determining the second group exit may include: and determining candidate group outlets in the first cross board, which have corresponding relation with the upper road ports, and determining a candidate group outlet except the first group outlet as a second group outlet. Determining the second group of entries may include: and determining candidate group entrances corresponding to the lower intersection in the first cross board, and determining a candidate group entrance except the first group entrance as a second group entrance.
In an embodiment, the determining the second group exit and the second group entry comprises:
acquiring the corresponding relation between the group outlet of the first cross plate and the OMS and the corresponding relation between the group inlet of the second cross plate and the OMS; acquiring the state of each OMS; the states of the OMS comprise an interruption state and a connection state; and selecting the group outlet and the group inlet corresponding to the OMS in the connection state as a second group outlet and a second group inlet. And selecting the group outlet and the group inlet corresponding to the OMS in a connection state as a second group outlet and a second group inlet according to the state of each OMS. Here, the second group entry and the second group exit are entries and exits of the same OMS, respectively.
In practical application, the second group of exits corresponding to the upper intersection and the second group of entrances corresponding to the lower intersection can be determined according to the following correspondence: the corresponding relation between the upper intersection and the group exit, the corresponding relation between the group exit and the OMS, the corresponding relation between the lower intersection and the group entrance, the corresponding relation between the group entrance and the OMS, and the state of each OMS.
S103, determining a second light channel according to the upper intersection, the second group of road outlets, the second group of road inlets and the lower intersection;
and after the second group of road outlets and the second group of road inlets are determined, the upper road junction, the second group of road outlets, the second group of road inlets and the lower road junction form a second OCH.
After the second OCH is determined, the wavelength used when the second OCH transmits the first OCH traffic is determined, the first intersection rule table including the upper intersection, the wavelength and the second group of outlets is sent to the first cross board, and the second intersection rule table including the lower intersection, the wavelength and the second group of inlets is sent to the second cross board, so that the first cross board is instructed to send the OCH traffic channel received by the upper intersection to the second group of outlets by using the wavelength according to the first intersection rule table, and the second cross board sends the OCH traffic received by the second group of inlets to the lower intersection by using the wavelength according to the second intersection rule table.
Determining a wavelength used when the second OCH transmits the first OCH traffic may include: and determining the wavelength used when the first OCH is transmitted according to the use state of each wavelength in the wavelength group of the second OCH. Such as: the wavelengths in the wavelength group corresponding to the second OCH include: the method comprises the following steps of wavelength 1, wavelength 2 and wavelength 3, wherein the wavelength 1 is in a use state, the wavelength 2 is in a use state, and the wavelength 3 is in an idle state, and the first OCH service is transmitted by using the wavelength 3 in the second OCH.
In practical application, when no wavelength set is set at the second group of entrances, the wavelength set corresponding to the second OCH may be the wavelength set corresponding to the second group of exits; when the second group entry is set with a corresponding wavelength set, the wavelength set corresponding to the second OCH may be an intersection of the wavelength set corresponding to the second group exit and the wavelength set corresponding to the second group exit.
Determining the wavelength used when the second OCH is transmitting the first OCH traffic may also include: and taking the wavelength of the first OCH transmitted first OCH service as the wavelength used when the second OCH transmits the first OCH service. Such as: and if the wavelength of the first OCH transmission first OCH service is 1, determining that the wavelength of the second OCH transmission first OCH service is still 1. Here, the wavelength at which the first OCH transmits the first OCH traffic may be referred to as a first wavelength.
In practical application, whether the second group of outlets support the first wavelength is judged, and if so, the first wavelength is used as the wavelength used when the second OCH transmits the first OCH service; and if not, directly selecting the wavelength used when the second OCH transmits the first OCH service from the group outlet corresponding to the second group outlet.
And S104, transmitting the first optical channel service through the second optical channel.
And after the second OCH is determined, transmitting the first OCH service of the OCH service plate corresponding to the upper intersection through the second OCH, and transmitting the first OCH service to the OCH service plate corresponding to the lower intersection through the second group outlet and the second group inlet.
In an embodiment, the optical channel protection method provided in the embodiment of the present invention further includes: acquiring a first wavelength used by the first optical channel service; if the first wavelength is used in the second optical channel, determining a second wavelength according to a wavelength group corresponding to the second optical channel; accordingly, transmitting the first optical channel traffic over the second optical channel comprises: transmitting the first optical channel traffic over the second optical channel using the second wavelength.
Here, a first wavelength is obtained, and the use state of the first wavelength in the second group outlet is determined, if the first wavelength is not used, the second OCH sends a first OCH service through the first wavelength; and if the first wavelength is in a use state, selecting a second wavelength from a wavelength group corresponding to the second group outlet, and transmitting the first OCH service by the second wavelength through the second OCH, wherein the first wavelength and the second wavelength are different wavelengths. Such as: the first wavelength used by the first OCH for transmitting the first OCH service is wavelength 1, the wavelength group corresponding to the second OCH comprises wavelength 1, wavelength 2 and wavelength 3, and the wavelength 1 is in a use state, then the second wavelength is determined from the wavelength 2 and the wavelength 3. Here, the second wavelength may be determined according to information of the status, priority, and the like of the wavelength.
In an embodiment, the determining the second wavelength according to the wavelength group corresponding to the second optical channel includes: if all wavelengths in the wavelength group corresponding to the second optical channel are used, acquiring a first priority of the first optical channel service and a second priority of the optical channel service corresponding to all wavelengths in the wavelength group; and determining the wavelength used by the second optical channel service corresponding to the second priority lower than the first priority as the second wavelength.
And when the wavelengths in the wavelength group of the second OCH are all in the use state, preempting the wavelength of the OCH service with low priority as the second wavelength according to the priority of the first OCH service and the priority of the current OCH service in the second OCH, for example: the priority of the first OCH service is two-level, and the OCH service currently transmitted by the second OCH service comprises: OCH service A, OCH service B, OCH service C and OCH service D, using wavelengths respectively: the wavelength A, the wavelength B, the wavelength C, the wavelength D and the priority are respectively as follows: one-level, two-level, three-level and four-level, and the priority is from high to low: first-stage, second-stage, third-stage and fourth-stage. At this time, the OCH traffic C or the OCH traffic D is taken as the second OCH traffic, and the wavelength C or the wavelength D is taken as the second wavelength.
When the first OCH service uses the wavelength of the second OCH service for transmission, the transmission of the second OCH service can be interrupted.
In an embodiment, the optical channel protection method provided in the embodiment of the present invention further includes: acquiring the interruptible time length of the second optical channel service; determining that the duration of the first optical channel service using the second wavelength is the interruptible duration, and determining that the wavelength used by a third optical channel service corresponding to a second priority lower than the first priority is a third wavelength; accordingly, transmitting the first optical channel traffic over the second optical channel comprises: transmitting the first optical channel traffic over the second optical channel using the third wavelength.
Here, interruptible of each OCH service can be set, which characterizes the maximum duration that the OCH service can be interrupted for transmission. And when the first OCH service occupies the second wavelength of the second OCH service for transmission, the second OCH service is temporarily interrupted. When the transmission time length of the first OCH service using the second wavelength is the tolerance time length of the second OCH service, the second OCH service is interrupted for the tolerance time length, at this time, a third OCH service with another priority lower than the priority of the first OCH service is determined, the first OCH service is transmitted using the third wavelength used for transmitting the third OCH service, the transmission of the second OCH service using the second wavelength is recovered, and the third OCH service is interrupted.
Such as: the priority of the first OCH service is two-level, and the OCH service currently transmitted by the second OCH service comprises: OCH service A, OCH service B, OCH service C and OCH service D, using wavelengths respectively: the wavelength A, the wavelength B, the wavelength C, the wavelength D and the priority are respectively as follows: one-level, two-level, three-level and four-level, and the priority is from high to low: first-stage, second-stage, third-stage and fourth-stage. And taking the OCH service C as a second OCH service, using the wavelength C as a second wavelength, using the second wavelength to transmit the first OCH service, and interrupting the transmission of the OCH service C. And when the time length of the first OCH service using the second wavelength is the tolerance time length of the second OCH service, continuing to use the second OCH service of which the second wavelength belongs to the second OCH service, taking the OCH service D as a third OCH service, taking the wavelength D as a third wavelength, transmitting the first OCH service by using the third wavelength, and interrupting the transmission of the OCH service D.
In the embodiment of the invention, the priority of each OCH service can be set according to actual requirements, and the interruptible priority of each OCH service can be set according to actual requirements.
In an embodiment, the optical channel protection method provided in the embodiment of the present invention further includes: and when the state of the first optical channel is monitored to be a connection state, transmitting the first optical channel service received from the upper intersection to the lower intersection through the first optical channel. And when the first OCH is in a connection state, switching the first OCH service back to the first OCH when the first OCH is determined to be repaired.
It should be noted that, when the first OCH service preempts the wavelength used by other OCH services in the second OCH, before the first OCH is repaired, the first OCH service may preempt the wavelength used by the OCH service with a lower priority than that of the first OCH to transmit in the second OCH until the first OCH is repaired.
It should be noted that the OCH for sending the first OCH service includes a path from the upper intersection to the lower intersection, a path from the originating OCH service board to the upper intersection, and a path from the lower intersection to the terminating OCH service board. In the embodiment of the invention, for the first OCH service, the path between the originating port of the originating OCH service board of the first OCH and the second OCH and the path between the terminating port of the terminating OCH service board of the lower OCH and the terminating port of the terminating OCH service board are not changed, and the path between the upper intersection and the lower intersection is changed.
In the embodiment of the invention, after the first optical channel is determined to be in the interruption state, the second optical channel is determined according to the path of the first optical channel, the second optical channel is used as a protection channel, and the service of the first optical channel is switched to the protection channel, so that when the first optical channel is interrupted, the second optical channel is calculated in real time in all the optical channels in a software implementation mode, thereby improving the protection reliability of the OCH service, and the protection channel does not need to be set in advance, and a special protection channel realized based on hardware is not needed, thereby reducing the protection cost.
In some embodiments, after the OCH is interrupted, an available OMS is timely searched, and is switched to a corresponding group port, and when no wavelength is available, the wavelength of a low-priority service is preempted, so that the normal operation of a high-priority service can be ensured, the reliability of the service is greatly increased, meanwhile, a large number of OP protection boards are saved, and the cost is greatly reduced.
Example two
The present embodiment further describes the optical channel protection method proposed by the present invention, as shown in fig. 3, including:
s301, generating an association relation between the interrupted OCH service and a cross board;
when judging that there is interrupted OCH service (first OCH service), finding out the optical cross board according to the interrupted OCH (first OCH), and generating the relation between the interrupted OCH service and the cross board, wherein the relation between the interrupted OCH service and the cross board comprises: finding out the output port of the transmitting-end OCH service plate, the branch road upper port (upper crossing) of the transmitting-end optical cross plate, the group road output port (group road outlet) of the transmitting-end optical cross plate (first cross plate), the group road input port (group road inlet) of the receiving-end optical cross plate (second cross plate), the branch road lower port (lower crossing) of the receiving-end optical cross plate, and the output port of the receiving-end OCH service plate.
Here, each port in the association relationship is a port of the interrupted OCH.
S302, generating a relation between the intersection of the cross board group and the OMS;
finding a group intersection, a corresponding OMS and the state of the OMS according to the transmitting end optical cross board and the receiving end optical cross board, and generating the relationship between the group intersection and the OMS of the cross board, wherein the relationship between the group intersection and the OMS of the cross board comprises the following steps: the optical cross board comprises a group outlet of the sending-end optical cross board, a group inlet of the receiving-end optical cross board, corresponding OMSs and states of the OMSs, wherein the states comprise an interruption state and a normal state (a connection state).
And S303, selecting a group port corresponding to the normal OMS to generate a cross board rule table, and controlling the transmission of the interrupted OCH service through the cross board rule table.
According to the relation between the cross board and the group circuit corresponding to the interrupted OCH service and the relation between the group circuit and the OMS, searching the group crossing and the OMS with normal states, switching the upper crossing and the lower crossing of the interrupted OCH service to the normal group crossing, and generating a new cross rule table, wherein the new cross rule table comprises: the rule table corresponding to the transmitting-end optical cross board and the rule table corresponding to the receiving-end optical cross board are an upper intersection, a wavelength and a group outlet; the rule table corresponding to the receiving end optical cross board is the lower intersection, the wavelength and the group entrance, and the generated new cross board rule table is sent to the corresponding optical cross board.
If the current wavelength of the interrupted OCH service is not occupied in the wavelength group of the group port, the current wavelength is used, and if the current wavelength is occupied, a new wavelength is generated. When the wavelength in the wavelength group of the group intersection is completely occupied and no available wavelength is available, the interrupted OCH service can be switched to the wavelength of the low-level OCH service according to the priority of the service and the attributes of interruption and the like which are not influenced by how long the service is occupied, timing is started, if the service is not completely repaired in the interruption, the occupied OCH service is recovered, the wavelength of the next low-priority OCH service is continuously occupied, timing is continued, and the interrupted OCH service is repaired for enough time until the interrupted OCH service is repaired.
EXAMPLE III
The present embodiment further describes the optical channel protection method proposed by the present invention.
Fig. 4 is a flowchart of an implementation of the optical channel protection method according to the embodiment of the present invention, as shown in fig. 4, including:
s401, monitoring an OCH service to obtain an interrupted OCH service;
s402, inquiring an OCH associated transmitting end optical cross board and a receiving end optical cross board;
s403, determining the association relationship between the interrupted OCH service and the optical cross board;
the association relationship between the interrupted OCH service and the optical cross board specifically includes: the output port of the transmitting end service board, the branch road upper port of the transmitting end optical cross, the group output port of the transmitting end optical cross board, the group input port of the receiving end optical cross board, the branch road lower port of the receiving end optical cross, and the output port of the receiving end service board. Each port is a port of the interrupted OCH.
S404, determining the incidence relation between the cross plate and the OMS;
here, generating an association relationship between the group port of the cross board and the OMS and the state of each OMS includes: the group outlet of the sending-end optical cross board, the group inlet of the receiving-end optical cross board, the corresponding OMS and the connection state of the OMS.
S405, determining available OMSs;
and searching the OMS in a normal state according to the group relation between the service port and the cross board and the relation between the group port of the cross board and the OMS, and taking the associated group port as a target group port for switching the service port.
S406, generating a rule table of the cross board;
the rule table corresponding to the transmitting end cross plate is an upper intersection, a wavelength and a group path outlet; the rule table corresponding to the receiving end cross board is the lower intersection, the wavelength and the group entrance, wherein the group exit and the group entrance are determined by S406, and the upper intersection and the lower intersection are determined by S403. The method of determining the wavelength can be as shown in fig. 5. Each port in S406 is a port of the determined second OCH.
S407, issuing the rule table to the transmitting end optical cross board and the receiving end optical cross board to protect the interrupt service;
s408, monitoring the interrupted OCH state;
s409, judging whether the interrupted OCH are repaired;
if yes, S410 is executed, otherwise S408 is continuously executed.
S4010, recovering the interrupted OCH.
The original wavelength and the group port of the interrupted OCH service are sent to the cross device for recovery, so as to switch the interrupted OCH service back to the original OCH, and the switching method can be shown in fig. 6.
Fig. 5 is a flowchart of an implementation of a method for determining a second OCH in a method for protecting an optical channel according to an embodiment of the present invention, as shown in fig. 5, including:
s501, selecting a group inlet and a group outlet with normal OMS states;
s502, taking the group road interface as an inclusion rule table;
the group port comprises a group inlet and a group outlet.
S503, judging whether the wavelength of the interrupted OCH service is occupied at the group road junction;
if yes, S504 is executed, and if no, S507 is executed.
S504, whether the group road port has idle wavelength or not;
if yes, go to step S506, otherwise go to step S505.
S505, seizing a service wavelength with low priority;
the low priority wavelength preemption method can be seen in fig. 6.
S506, enabling an idle new wavelength;
and S507, generating a rule of the cross board.
The rule table corresponding to the originating cross board comprises: upper crossing, wavelength, group exit; the rule table corresponding to the receiving end cross plate comprises: lower crossing, wavelength, group entry.
Fig. 6 is a flowchart of an implementation of a protection recovery method in a method for protecting an optical channel according to an embodiment of the present invention, as shown in fig. 6, including:
s601, selecting OCH service with priority lower than that of the current interrupted OCH service;
s602, obtaining interruptible time of the low-level OCH service;
s603, setting the low-level OCH service as blocking, and starting timing;
s604, assigning the wavelength of the low-level OCH service to the interrupted OCH service;
s605, judging whether the interrupted OCH are repaired;
if yes, go to step S608, otherwise, go to step S606.
S606, judging whether the timing time exceeds the interruptible time with low priority;
yes, S607, no, S605 is executed.
S607, recovering the low priority service;
here, the repeated execution S601 continues to seize the next low priority service.
S608, recovering the interrupted service;
and S609, recovering the low-priority service.
The scheme provided by the embodiment of the invention adopts the OCH dynamic protection based on software definition, searches the available OMS in time after the OCH service layer is interrupted, and switches to the corresponding group port, and preempts the wavelength of the low-priority service when no wavelength is available, thereby ensuring the normal operation of the high-priority service, greatly increasing the reliability of the service, simultaneously saving the use of a large number of OP protection single boards and greatly reducing the cost.
Example four
This embodiment further describes the optical channel protection method proposed by the present invention by using the optical channel protection device shown in fig. 7.
As shown in fig. 7, the apparatus includes: a monitoring unit 701, an interruption relation unit 702, a cross relation unit 703, a rule unit 704, a protection unit 705, a judgment unit 706 and a recovery unit 707; wherein the content of the first and second substances,
a monitoring unit 701, configured to monitor whether there is an interrupted OCH service.
An interruption relation unit 702, configured to generate an association relation between interrupted OCH services and a cross board, includes: finding out output port of service board, branch road upper port of optical cross, group output port of optical cross board, group input port of optical cross board, branch road lower port of optical cross board and output port unit of service board.
The cross relationship unit 703 is configured to generate an association relationship between a group port of a cross board and an OMS and a state, and includes: the group outlet of the sending-end optical cross board, the group inlet of the receiving-end optical cross board, the corresponding OMS and the connection state of the OMS.
A rule unit 704, configured to generate a rule table according to the association relationship generated by the interrupt relationship unit 702 and the cross relationship unit 703, where the rule table includes: the rule table corresponding to the transmitting end cross plate is an upper intersection, a wavelength and a group path outlet; the rule table corresponding to the receiving end cross board is the lower intersection, the wavelength and the group entrance.
A protection unit 705, configured to issue the intersection rule table to the originating intersection board and the terminating intersection board respectively; to control the cross board to transmit the interrupted OCH service via the determined protection OCH.
The determining unit 706 is configured to determine whether the interrupted service is resumed.
A recovery unit 707 for switching the wavelength and the group port back to the state before the interruption.
Here, the monitoring unit 701 transmits the interrupted OCH service to the interruption relation unit 702, the interruption relation unit 702 calculates the relation between the service board and the cross board, and transmits the relation to the cross relation unit 703 to generate the group outlet of the sending-end optical cross board, the group inlet of the receiving-end optical cross board, the corresponding OMS, and the connection state of the OMS; the rule unit 704 obtains the relationship between the service board and the cross board, and the relationship between the cross board and the OMS from the interrupt relationship unit 702 and the cross relationship unit 703, selects a group intersection corresponding to the normal OMS, calculates wavelength information, and generates a cross board rule table; the crossing rule of the rule unit 704 is transmitted to the protection unit 705, and the device is issued; the determining unit 706 invokes the monitoring unit 701 to monitor the state of the interrupted service, and determines whether the interrupted service is recovered, and triggers the recovering unit 707 to switch the wavelength and the group port of the interrupted service back to the state before interruption when the service is recovered.
EXAMPLE five
To implement the method according to the embodiment of the present invention, an optical channel protection device is provided according to the embodiment of the present invention, as shown in fig. 8, where the optical channel protection device includes: a monitoring module 801, a determining module 802, a generating module 803, and a transmitting module 804; wherein the content of the first and second substances,
the monitoring module 801 is configured to monitor that a first optical channel is in an interrupted state, and determine an upper intersection and a lower intersection of the first optical channel; the first optical channel is a channel formed by the upper intersection, the first group path outlet, the first group path inlet and the lower intersection, and the first optical channel is used for transmitting first optical channel services;
a determining module 802, configured to determine a second group exit and a second group entry; the second group outlet and the first group outlet are different group outlets of a first optical cross plate, and the second group inlet and the first group inlet are different group inlets of a second optical cross plate;
a generating module 803, configured to determine a second optical channel according to the upper intersection, the second group of exits, the second group of entrances, and the lower intersection;
a transmission module 804, configured to transmit the first optical channel service through the second optical channel.
In an embodiment, the monitoring module 801 is specifically configured to:
and monitoring that an optical multiplexing section OMS between the first group path outlet and the first group path inlet is in an interrupt state.
In an embodiment, the determining module 802 is specifically configured to:
acquiring the corresponding relation between the group outlet of the first cross plate and the OMS and the corresponding relation between the group inlet of the second cross plate and the OMS;
acquiring the state of each OMS; the states of the OMS comprise an interruption state and a connection state;
and selecting the group outlet and the group inlet corresponding to the OMS in the connection state as a second group outlet and a second group inlet.
In one embodiment, as shown in fig. 9, the apparatus further comprises: a wavelength module 805 to:
acquiring a first wavelength used by the first optical channel service;
if the first wavelength is used in the second optical channel, determining a second wavelength according to a wavelength group corresponding to the second optical channel;
correspondingly, the transmission module 804 is specifically configured to:
transmitting the first optical channel traffic over the second optical channel using the second wavelength.
In an embodiment, the wavelength module 805 determining the second wavelength according to the wavelength group corresponding to the second optical channel includes:
if all wavelengths in the wavelength group corresponding to the second optical channel are used, acquiring a first priority of the first optical channel service and a second priority of the optical channel service corresponding to all wavelengths in the wavelength group;
and determining the wavelength used by the second optical channel service corresponding to the second priority lower than the first priority as the second wavelength.
In one embodiment, as shown in fig. 9, the apparatus further comprises: an occupancy module 806 to:
obtaining the interruptible of the second optical channel service;
when the duration of the first optical channel service using the second wavelength is determined to be interruptible, determining that the wavelength used by a third optical channel service corresponding to a second priority lower than the first priority is a third wavelength;
correspondingly, the transmission module 804 is specifically configured to:
transmitting the first optical channel traffic over the second optical channel using the third wavelength.
In one embodiment, as shown in fig. 9, the apparatus further comprises: a repair module 807 for:
and when the state of the first optical channel is monitored to be a connection state, transmitting the first optical channel service received from the upper intersection to the lower intersection through the first optical channel.
It should be noted that the above description of the embodiment of the apparatus, similar to the above description of the embodiment of the method, has similar beneficial effects as the embodiment of the method. For technical details not disclosed in the embodiments of the apparatus according to the invention, reference is made to the description of the embodiments of the method according to the invention for understanding.
It should be noted that, when the optical channel protection device provided in the fourth embodiment and the optical channel protection device provided in the fifth embodiment perform optical channel protection, the above-mentioned division of each program module is only used for illustration, and in practical applications, the above-mentioned processing distribution may be completed by different program modules according to needs, that is, the internal structure of the device may be divided into different program modules to complete all or part of the above-mentioned processing.
Exactly product of six
An embodiment of the present invention provides an optical protection channel device, fig. 10 is a schematic diagram of a composition structure of an optical protection channel device according to an embodiment of the present invention, and as shown in fig. 10, the optical protection channel device 1000 includes: a processor 1001, at least one communication bus 1002, a user interface 1003, at least one external communication interface 1004, and memory 805. Wherein the communication bus 1002 is configured to enable connective communication between these components. The user interface 803 may include a display screen, and the external communication interface 1004 may include a standard wired interface and a wireless interface, among others. The processor 1001 is configured to execute an optical channel protection program stored in a memory, so as to implement the following steps:
monitoring that a first optical channel is in an interruption state, and determining an upper intersection and a lower intersection of the first optical channel; the first optical channel is a channel formed by the upper intersection, the first group path outlet, the first group path inlet and the lower intersection, and the first optical channel is used for transmitting first optical channel services;
determining a second group of outlets and a second group of inlets; the second group outlet and the first group outlet are different group outlets of a first optical cross plate, and the second group inlet and the first group inlet are different group inlets of a second optical cross plate;
determining a second optical channel according to the upper intersection, the second group of road outlets, the second group of road inlets and the lower intersection;
and transmitting the first optical channel service through the second optical channel.
Accordingly, an embodiment of the present invention further provides a storage medium, namely a computer-readable storage medium, where an optical channel protection program is stored on the storage medium, and when the optical channel protection program is executed by a processor, the steps of the optical channel protection method are implemented.
The above description of the optical channel protection device, apparatus and computer-readable storage medium embodiments is similar to the description of the method embodiments above, with similar advantageous effects as the method embodiments. For technical details not disclosed in the embodiments of the optical channel protection device, the electronic device and the computer-readable storage medium of the present invention, reference is made to the description of the method embodiments of the present invention for understanding.
In the embodiment of the present invention, if the instant messaging method is implemented in the form of a software functional module and is sold or used as an independent product, the instant messaging method may also be stored in a computer-readable storage medium. Based on such understanding, the technical solutions of the embodiments of the present invention may be essentially implemented or a part contributing to the prior art may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the methods described in the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read Only Memory (ROM), a magnetic disk, or an optical disk. Thus, embodiments of the invention are not limited to any specific combination of hardware and software.
It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. It should be understood that, in various embodiments of the present invention, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention. The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. The above-described device embodiments are merely illustrative, for example, the division of the unit is only a logical functional division, and there may be other division ways in actual implementation, such as: multiple units or components may be combined, or may be integrated into another system, or some features may be omitted, or not implemented. In addition, the coupling, direct coupling or communication connection between the components shown or discussed may be through some interfaces, and the indirect coupling or communication connection between the devices or units may be electrical, mechanical or other forms.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units; can be located in one place or distributed on a plurality of network units; some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, all the functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may be separately regarded as one unit, or two or more units may be integrated into one unit; the integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.
Those of ordinary skill in the art will understand that: all or part of the steps for realizing the method embodiments can be completed by hardware related to program instructions, the program can be stored in a computer readable storage medium, and the program executes the steps comprising the method embodiments when executed; and the aforementioned storage medium includes: various media that can store program codes, such as a removable Memory device, a Read Only Memory (ROM), a magnetic disk, or an optical disk.
Alternatively, the integrated unit of the present invention may be stored in a computer-readable storage medium if it is implemented in the form of a software functional module and sold or used as a separate product. Based on such understanding, the technical solutions of the embodiments of the present invention may be essentially implemented or a part contributing to the prior art may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the methods described in the embodiments of the present invention. And the aforementioned storage medium includes: a removable storage device, a ROM, a magnetic or optical disk, or other various media that can store program code.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (9)
1. A method for optical channel protection, the method comprising:
monitoring that a first optical channel is in an interruption state, and determining an upper intersection and a lower intersection of the first optical channel; the first optical channel is a channel formed by the upper intersection, the first group path outlet, the first group path inlet and the lower intersection, and the first optical channel is used for transmitting first optical channel services;
determining a second group of outlets and a second group of inlets; the second group outlet and the first group outlet are different group outlets of a first optical cross plate, and the second group inlet and the first group inlet are different group inlets of a second optical cross plate;
determining a second optical channel according to the upper intersection, the second group of road outlets, the second group of road inlets and the lower intersection;
transmitting the first optical channel service through the second optical channel;
wherein the determining a second group exit comprises:
acquiring a plurality of group outlets in a first cross plate, which have a corresponding relation with an upper road port, and a corresponding relation between the group outlets and an OMS;
acquiring the state of each OMS, wherein the state comprises an interruption state and a connection state;
selecting a group outlet corresponding to the OMS in the connection state as a second group outlet;
the determining a second group entry comprises:
acquiring a plurality of group road inlets in a first cross board, wherein the plurality of group road inlets have a corresponding relationship with a lower intersection, and the corresponding relationship between the group road inlets and an OMS (operation management system);
acquiring the state of each OMS, wherein the state comprises an interruption state and a connection state;
selecting a group entrance corresponding to the OMS in the connection state as a second group entrance;
and the second group inlet and the second group outlet are respectively an inlet and an outlet of the same OMS.
2. The method of claim 1, wherein said monitoring that the first optical channel is in an interrupted state comprises;
and monitoring that an optical multiplexing section OMS between the first group path outlet and the first group path inlet is in an interrupt state.
3. The method of claim 1, further comprising:
acquiring a first wavelength used by the first optical channel service;
if the first wavelength is used in the second optical channel, determining a second wavelength according to a wavelength group corresponding to the second optical channel;
accordingly, transmitting the first optical channel traffic over the second optical channel comprises:
transmitting the first optical channel traffic over the second optical channel using the second wavelength.
4. The method of claim 3, wherein determining the second wavelength from the wavelength group corresponding to the second optical channel comprises:
if all wavelengths in the wavelength group corresponding to the second optical channel are used, acquiring a first priority of the first optical channel service and a second priority of the optical channel service corresponding to all wavelengths in the wavelength group;
and determining the wavelength used by the second optical channel service corresponding to the second priority lower than the first priority as the second wavelength.
5. The method of claim 4, further comprising:
acquiring the interruptible time length of the second optical channel service;
determining that the duration of the first optical channel service using the second wavelength is the interruptible duration, and determining that the wavelength used by a third optical channel service corresponding to a second priority lower than the first priority is a third wavelength;
accordingly, transmitting the first optical channel traffic over the second optical channel comprises:
transmitting the first optical channel traffic over the second optical channel using the third wavelength.
6. The method according to any one of claims 1 to 5, further comprising:
and when the state of the first optical channel is monitored to be a connection state, transmitting the first optical channel service received from the upper intersection to the lower intersection through the first optical channel.
7. An optical channel protection device, the device comprising: the device comprises a monitoring module, a determining module, a generating module and a transmitting module; wherein the content of the first and second substances,
the monitoring module is used for monitoring that the first optical channel is in an interruption state and determining an upper intersection and a lower intersection of the first optical channel; the first optical channel is a channel formed by the upper intersection, the first group path outlet, the first group path inlet and the lower intersection, and the first optical channel is used for transmitting first optical channel services;
the determining module is used for determining a second group of road outlets and second group of road inlets; the second group outlet and the first group outlet are different group outlets of a first optical cross plate, and the second group inlet and the first group inlet are different group inlets of a second optical cross plate;
the generating module is used for determining a second optical channel according to the upper intersection, the second group of road outlets, the second group of road inlets and the lower intersection;
the transmission module is configured to transmit the first optical channel service through the second optical channel;
wherein the determining a second group exit comprises:
acquiring a plurality of group outlets in a first cross plate, which have a corresponding relation with an upper road port, and a corresponding relation between the group outlets and an OMS;
acquiring the state of each OMS, wherein the state comprises an interruption state and a connection state;
selecting a group outlet corresponding to the OMS in the connection state as a second group outlet;
the determining a second group entry comprises:
acquiring a plurality of group road inlets in a first cross board, wherein the plurality of group road inlets have a corresponding relationship with a lower intersection, and the corresponding relationship between the group road inlets and an OMS (operation management system);
acquiring the state of each OMS, wherein the state comprises an interruption state and a connection state;
selecting a group entrance corresponding to the OMS in the connection state as a second group entrance;
and the second group inlet and the second group outlet are respectively an inlet and an outlet of the same OMS.
8. An optical channel protection device, characterized in that the device comprises a processor and a memory for storing a computer program executable on the processor, wherein the processor is adapted to perform the steps of the optical channel protection method according to any of claims 1 to 6 when running the computer program.
9. A computer-readable storage medium, wherein an optical channel protection program is stored on the computer-readable storage medium, and when executed by a processor, implements the steps of the optical channel protection method of any one of 1 to 6.
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