CN112218179A - Service protection method, device and system - Google Patents
Service protection method, device and system Download PDFInfo
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- CN112218179A CN112218179A CN201910613233.1A CN201910613233A CN112218179A CN 112218179 A CN112218179 A CN 112218179A CN 201910613233 A CN201910613233 A CN 201910613233A CN 112218179 A CN112218179 A CN 112218179A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0062—Network aspects
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/08—Locating faults in cables, transmission lines, or networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0062—Network aspects
- H04Q2011/0079—Operation or maintenance aspects
- H04Q2011/0083—Testing; Monitoring
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0062—Network aspects
- H04Q2011/0086—Network resource allocation, dimensioning or optimisation
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Abstract
The embodiment of the invention discloses a service protection method, a device and a system, comprising the following steps: the method comprises the steps that service data are duplicated into two parts at a sending end and transmitted through a first mixed service transmission line card and a second mixed service transmission line card respectively; determining whether to receive the service data received by the third mixed service transmission line card or the service data received by the fourth mixed service transmission line card at the receiving end according to whether the second high-order OTU is detected; the first mixed service transmission line card and the second mixed service transmission line card have a protection relationship, and the third mixed service transmission line card and the fourth mixed service transmission line card have a protection relationship. The embodiment of the invention realizes the service switching protection through the protection path formed by the second mixed service transmission line card and the fourth mixed service transmission line card, and because the alarm of the high-order OTU port comprises the alarm of the optical layer and the alarm of the service layer, the protection is carried out before the damage of the OTN line, thereby improving the efficiency of fault detection.
Description
Technical Field
The present invention relates to, but not limited to, the field of communications, and in particular, to a method, an apparatus, and a system for service protection.
Background
With the rapid development of ethernet, the requirements of large bearers of multiple services such as Synchronous Digital Hierarchy (SDH), Optical Transport Network (OTN), Packet Transport Network (PTN) services are also pressing, and the service transmission at GB/s to TB/s level is largely distributed in communication access, metropolitan area, and backbone transmission systems. Once a fault such as damage of the main line occurs, a large amount of services are interrupted, a reliable main line service protection system must be designed, the survival capability of the OTN transmission network is improved, and the protection switching technology is perfected and improved.
As shown in fig. 1, the protection system generally includes an Automatic Power State (APS) Controller (APSC), a detector (Monitor), an actuator (Selector), and a protocol transmitter. Wherein, the detector is responsible for the detection of the alarm; the APS controller is responsible for the calculation of a protection protocol and the control of the whole protection system process; the executor is responsible for switching the services; the protocol transferor is responsible for the transfer of the APS protocol.
As shown in fig. 2, the conventional Optical channel Protection is implemented by an Optical Protection (OP) board, and the controller, the detector, and the executor are all on the OP board, and when various customer services are converged on a customer service access line card of a first device, the customer services are transmitted on a mixed service transmission line card of the first device, transmitted to a mixed service transmission line card of a second device through an Optical fiber, and output from the customer service access line card of the second device. In the protection, an OP board (i.e., SOP in fig. 2) is disposed on the optical fiber to detect the change of optical power, and when the optical power is lower than a certain threshold, switching is triggered, thereby implementing switching protection. However, this method needs an additional optical protection unit (i.e. an OP board) for protection, and has low failure detection efficiency, that is, only the alarm trigger switching of the optical layer can be detected, but the alarm signal of the service layer cannot be detected, and the switching cannot be triggered in time when the alarm signal is generated at the service layer, thereby causing a failure in service transmission.
Disclosure of Invention
The embodiment of the invention provides a service protection method, a device and a system, which can improve the efficiency of fault detection.
The embodiment of the invention provides a service protection method, which comprises the following steps:
the first customer service access line card receives the service data and sends the service data to the first centralized control unit;
the first centralized control unit receives the service data, duplicates the service data into two parts according to the protection configuration information, and respectively sends the two parts to the first mixed service transmission line card and the second mixed service transmission line card;
the first mixed service transmission line card sends service data to a third mixed service transmission line card through a first high-order Optical Channel Transport Unit (OTU) port according to the first service configuration information, and the second mixed service transmission line card sends the service data to a fourth mixed service transmission line card through a second high-order OTU port according to the first service configuration information;
the first mixed service transmission line card and the second mixed service transmission line card have a protection relationship, and the third mixed service transmission line card and the fourth mixed service transmission line card have a protection relationship.
The embodiment of the invention provides a service protection method, which comprises the following steps:
the third mixed service transmission line card receives the service data through a third high-order OTU port and sends the received service data to the second centralized control unit according to the second service configuration information;
the fourth mixed service transmission line card receives the service data through a fourth high-order OTU port and sends the received service data to the second centralized control unit according to the second service configuration information;
the second centralized control unit determines whether to send the service data received by the third mixed service transmission line card or the service data received by the fourth mixed service transmission line card to the second customer service access line card according to whether to detect the alarm of the predetermined high-order OTU port;
wherein the third mixed service transmission line card and the fourth mixed service transmission line card have a protection relationship.
An embodiment of the present invention provides a service protection device, which includes a processor and a computer-readable storage medium, where instructions are stored in the computer-readable storage medium, and when the instructions are executed by the processor, any one of the service protection methods is implemented.
An embodiment of the present invention provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of any one of the above-mentioned service protection methods.
An embodiment of the present invention provides a service protection device, including:
the first customer service access line card is used for receiving service data and sending the service data to the first centralized control unit;
the first centralized control unit is used for receiving the service data, copying the service data into two parts according to the protection configuration information, and respectively sending the two parts to the first mixed service transmission line card and the second mixed service transmission line card;
the first hybrid service transmission line card is used for sending the service data to the third hybrid service transmission line card through the first high-order OTU port according to the first service configuration information;
the second mixed service transmission line card is used for sending the service data to a fourth mixed service transmission line card through a second high-order OTU port according to the first service configuration information;
the first mixed service transmission line card and the second mixed service transmission line card have a protection relationship, and the third mixed service transmission line card and the fourth mixed service transmission line card have a protection relationship.
An embodiment of the present invention provides a service protection device, including:
the third hybrid service transmission line card is used for receiving the service data through a third high-order OTU port and sending the received service data to the second centralized control unit according to the second service configuration information;
the fourth hybrid service transmission line card is used for receiving the service data through a fourth high-order OTU port and sending the received service data to the second centralized control unit according to the second service configuration information;
the second centralized control unit is used for determining whether the service data received by the third mixed service transmission line card or the service data received by the fourth mixed service transmission line card is sent to the second customer service access line card according to whether the alarm of the predetermined high-order OTU port is detected;
wherein the third mixed service transmission line card and the fourth mixed service transmission line card have a protection relationship; the predetermined high order OTU port includes: a third higher order OTU port; or a third higher order OTU port and a fourth higher order OTU port.
An embodiment of the present invention provides a service protection system, including: a first device and a second device;
wherein the first device comprises: the system comprises a first customer service access line card, a first centralized control unit, a first mixed service transmission line card and a second mixed service transmission line card;
the second device includes: the system comprises a third mixed service transmission line card, a fourth mixed service transmission line card, a second centralized control unit and a second customer service access line card;
wherein the first mixed service transmission line card and the second mixed service transmission line card have a protection relationship, and the third mixed service transmission line card and the fourth mixed service transmission line card have a protection relationship;
the first customer service access line card is used for receiving service data and sending the service data to the first centralized control unit;
the first centralized control unit is used for receiving the service data, copying the service data into two parts according to the protection configuration information, and respectively sending the two parts to the first mixed service transmission line card and the second mixed service transmission line card;
the first hybrid service transmission line card is used for sending the service data to the third hybrid service transmission line card through the first high-order OTU port according to the first service configuration information;
the second mixed service transmission line card is used for sending the service data to a fourth mixed service transmission line card through a second high-order OTU port according to the first service configuration information;
the third hybrid service transmission line card is used for receiving the service data through a third high-order OTU port and sending the received service data to the second centralized control unit according to the second service configuration information;
the fourth hybrid service transmission line card is used for receiving the service data through a fourth high-order OTU port and sending the received service data to the second centralized control unit according to the second service configuration information;
the second centralized control unit is used for determining whether the service data received by the third mixed service transmission line card or the service data received by the fourth mixed service transmission line card is sent to the second customer service access line card according to whether the alarm of the predetermined high-order OTU port is detected; the predetermined high order OTU port includes: a third higher order OTU port; or a third higher order OTU port and a fourth higher order OTU port.
The embodiment of the invention comprises the following steps: at a sending end, a first customer service access line card receives service data and sends the service data to a first centralized control unit; the first centralized control unit receives the service data, duplicates the service data into two parts according to the protection configuration information, and respectively sends the two parts to the first mixed service transmission line card and the second mixed service transmission line card; the first mixed service transmission line card sends service data to a third mixed service transmission line card through a first high-order OTU port according to the first service configuration information, and the second mixed service transmission line card sends the service data to a fourth mixed service transmission line card through a second high-order OTU port according to the first service configuration information; wherein the first mixed service transmission line card and the second mixed service transmission line card have a protection relationship, and the third mixed service transmission line card and the fourth mixed service transmission line card have a protection relationship; at a receiving end, the third mixed service transmission line card receives the service data through a third high-order OTU port, and sends the received service data to the second centralized control unit according to the second service configuration information; the fourth mixed service transmission line card receives the service data through a fourth high-order OTU port and sends the received service data to the second centralized control unit according to the second service configuration information; the second centralized control unit determines whether to send the service data received by the third mixed service transmission line card or the service data received by the fourth mixed service transmission line card to the second customer service access line card according to whether to detect the alarm of the predetermined high-order OTU port; the predetermined high order OTU port includes: a third higher order OTU port; or a third higher order OTU port and a fourth higher order OTU port. The embodiment of the invention realizes the switching protection of the service through the protection path composed of the second mixed service transmission line card and the fourth mixed service transmission line card, and the alarm of the high-order OTU port comprises the alarm of an optical layer and the alarm of a service layer, and the protection is carried out before the OTN line is damaged, so the fault detection efficiency is improved, and under the condition of not replacing the related customer service access line card, the protection deployment of the mixed service is realized through software upgrading and newly adding the mixed service transmission line card, the configuration of the protection group is optimized, the external appearance of the protection group is concise, the operation and maintenance are convenient, and the integration level is improved.
Additional features and advantages of embodiments of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of embodiments of the invention. The objectives and other advantages of the embodiments of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
The accompanying drawings are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the examples of the invention serve to explain the principles of the embodiments of the invention and not to limit the embodiments of the invention.
FIG. 1 is a schematic diagram of a centralized protection system in the related art;
FIG. 2 is a schematic diagram of a conventional optical channel 1+1 protection configuration;
fig. 3 is a schematic diagram of a 1+1 protection configuration of a high-order OTU port according to an embodiment of the present invention;
fig. 4(a) is a schematic diagram of a hybrid service transport line card and a lower-order OTU port between a second centralized control unit according to an embodiment of the present invention when there is no protection configuration;
fig. 4(b) is a first schematic diagram illustrating that a lower-order OTU port between a hybrid service transport line card and a second centralized control unit has a protection configuration according to an embodiment of the present invention;
fig. 4(c) is a schematic diagram of a second embodiment of the present invention when a lower-order OTU port between a hybrid service transport line card and a second centralized control unit has protection configuration;
fig. 4(d) is a third schematic diagram when a lower-order OTU port between a hybrid service transport line card and a second centralized control unit has protection configuration according to an embodiment of the present invention;
fig. 5 is a flowchart of a service protection method according to an embodiment of the present invention;
fig. 6 is a flowchart of a service protection method according to another embodiment of the present invention.
Detailed Description
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments of the present invention may be arbitrarily combined with each other without conflict.
The steps illustrated in the flow charts of the figures may be performed in a computer system such as a set of computer-executable instructions. Also, while a logical order is shown in the flow diagrams, in some cases, the steps shown or described may be performed in an order different than here.
Referring to fig. 3, in the embodiment of the present invention, a second mixed service transport line card is provided at the first device, and a fourth mixed service transport line card is provided at the second device as a protection path for the first mixed service transport line card and the third mixed service transport line card. That is, the first mixed service transmission line card and the second mixed service transmission line card have a protection relationship, and the third mixed service transmission line card and the fourth mixed service transmission line card have a protection relationship.
In fig. 3, service transmission is performed between the first mixed service transmission line card and the third mixed service transmission line card through the high-order OTU port, service transmission is performed between the second mixed service transmission line card and the fourth mixed service transmission line card through the high-order OTU port, service transmission is performed between the third mixed service transmission line card and the second centralized control unit through the low-order OTU port, and service transmission is performed between the fourth mixed service transmission line card and the second centralized control unit through the low-order OTU port.
When a protection path is created, when high-order OTU port protection is configured, a protection path with a lower-order OTU port protection configuration that is the same as that of a working path is copied, so that a lower-order OTU port on the protection path can also perform protection switching, thereby ensuring that services (such as PTN services, SDH services, and the like) transmitted through the lower-order OTU port on the protection path can be subjected to protection switching, as shown in fig. 4(a), if the lower-order OTU port has no protection configuration, a protection path without configuring the lower-order OTU port protection is copied, as shown in fig. 4(b), fig. 4(c), and fig. 4(d), if the lower-order OTU port has protection configuration, a protection path with the same lower-order OTU port protection configuration is copied. For example, for an intersection where the sink is high order A1, one more source is copied unchanged, to an intersection where the sink is A2.
When protection switching is performed, high-order OTU port protection switching is performed first, and then low-order OTU port protection switching is performed. For example, after the protection switching of the OTU ports in the higher order, for the intersection with the source being the a1 in the higher order, a switching action is performed, that is, the sink is unchanged, and the source is switched to the intersection with the a2 in the higher order, as shown in fig. 4 (a). After the high-order protection is finished, the low order has 2A1Z/2A2Z, and the positioning information of the protection group A1/A2 can be refreshed aiming at the low order according to the low-order protection switching. The external presentation is also the original working path configuration, the crossing of the protection channels is only processed internally, and the external presentation is not performed.
After configuring the service carried by the low-order channel of the working path, the user copies the service configuration information of the working path to the protection path for configuration through the centralized control unit when detecting that the high-order OTU port protection is configured. The working path refers to a path formed by the first hybrid service transmission line card and the third hybrid service transmission line card, and the protection path refers to a path formed by the second hybrid service transmission line card and the fourth hybrid service transmission line card.
Then, the first centralized control unit copies the first service configuration information of the first mixed service transmission line card to the second mixed service transmission line card for service configuration, and the second centralized control unit copies the second service configuration information of the third mixed service transmission line card to the fourth mixed service transmission line card for service configuration.
In the first device, the first device is,
the first customer service access line card receives the service data and sends the service data to the first centralized control unit;
after cross scheduling is carried out by the first centralized control unit, service data are duplicated into two parts according to protection configuration information and are respectively sent to a first mixed service transmission line card and a second mixed service transmission line card;
the cross scheduling refers to using a first customer service access line card, a first mixed service transmission line card, a second mixed service transmission line card of the OTN, and after the first centralized control unit, the first customer service access line card is responsible for changing a plurality of customer signals into a plurality of ODU0, ODU1, and ODU2 signals, and through the first centralized control unit, a plurality of ODUk signals (which may be from an unused branch board position) can be combined into an OTU2(10G) of one circuit board. This allows flexibility in the use of the OTU2 (wavelength division side). It is also easy for customer service to change to another wavelength transmission, and as long as the cross is remotely modified, the station does not need to be connected with the fiber.
The protection configuration information includes a working mixed service transmission line card having a protection relationship, for example, a protection relationship exists between the first mixed service transmission line card and the second mixed service transmission line card, and a protection relationship exists between the third mixed service transmission line card and the fourth mixed service transmission line card.
The first mixed service transmission line card sends the service data to a third mixed service transmission line card through a first high-order OTU port and an optical fiber according to the first service configuration information;
and the second mixed service transmission line card sends the service data to a fourth mixed service transmission line card through a second high-order OTU port and an optical fiber according to the first service configuration information.
In the second device, the first device is,
the third mixed service transmission line card receives the service data through a third high-order OTU port and sends the received service data to the second centralized control unit according to the second service configuration information;
the fourth mixed service transmission line card receives the service data through a fourth high-order OTU port and sends the received service data to the second centralized control unit according to the second service configuration information;
when detecting the alarm of the third high-order OTU port, the second centralized control unit sends the service data received by the fourth mixed service transmission line card to the second customer service access line card;
and when the alarm of the third high-order OTU port is not detected, the second centralized control unit sends the service data received by the third mixed service transport line card to the second customer service access line card.
In an illustrative example, the detector in the protection system as shown in fig. 1 is provided in the third mixed service transport line card, the executor is provided in the second centralized control unit, and the controller and the protocol forwarder are provided in the third mixed service transport line card or the second centralized control unit.
When the detector detects the alarm of the third high-order OTU port, the alarm is sent to the controller, the controller calculates the APS protocol (following ITU-T G.873.1-OTN: linear protection), namely calculates whether the current customer service is received from the working path or the protection path according to the alarm state and the protection attribute of the working path, and sends the decision result to the actuator, the actuator switches the low-order channel service loaded on the failure path to the protection path, namely sends the service data received by the fourth mixed service transmission line card to the second customer service access line card, and transmits the normal service signal by the protection path, thereby achieving the service protection.
In another illustrative example, the detectors in the protection system as shown in fig. 1 are provided in the third mixed service transport line card and the fourth mixed service transport line card, the executor is provided in the second centralized control unit, and the controller and the protocol transferor are provided in the third mixed service transport line card or the second centralized control unit.
When the detector detects the alarm of the third and/or fourth high-order OTU ports, the alarm is sent to the controller, the controller calculates APS protocol (following ITU-T G.873.1-OTN: linear protection), that is, calculates whether the current client service is received from the working path or the protection path according to the alarm state and the protection attribute of the working path, sends the decision result to the actuator, the actuator switches the low-order channel service carried on the failure path to the protection path, that is, sends the service data received by the fourth mixed service transmission line card to the second client service access line card, and transmits the normal service signal by the protection path, thereby achieving the service protection.
Referring to fig. 5, another embodiment of the present invention provides a service protection method, including:
In the embodiment of the present invention, after receiving the service data, the first customer service access line card maps the service data and then directly sends the mapped service data to the lower backplane to the first centralized control unit for mapping and packaging.
After different types of service data are subjected to adaptation processing (i.e., mapping processing, i.e., different types of customer services are loaded into a standard container for transmission) by the first customer service access line card, the different types of service data are sent to the first centralized control unit for scheduling and forwarding processing.
In the embodiment of the present invention, a first hybrid service transport line card performs generic framing processing on service Data according to first service configuration information, encapsulates the service Data into an Optical Data Unit (ODU) k, and then transmits the service Data through a first high-order OTU port, and a second hybrid service transport line card performs generic framing processing on the service Data according to the first service configuration information, encapsulates the service Data into an ODUk, and then transmits the service Data through a second high-order OTU port.
In another embodiment of the invention, before the first customer service access line card receives the service data, the method further comprises:
and the first centralized control unit copies the first service configuration information of the first mixed service transmission line card to the second mixed service transmission line card for service configuration.
Referring to fig. 6, another embodiment of the present invention provides a service protection method, including:
step 600, the third hybrid service transmission line card receives the service data through the third high-order OTU port, and sends the received service data to the second centralized control unit according to the second service configuration information.
In the embodiment of the present invention, the third hybrid service transport line card and the fourth hybrid service transport line card demap the encapsulated service data from the ODUk according to the second service configuration information, and send the service data to the second centralized control unit.
In this embodiment of the present invention, the third mixed service transport line card and the fourth mixed service transport line card have a protection relationship.
In this embodiment of the present invention, when the predetermined high-order OTU port includes a third high-order OTU port, the determining, by the second centralized control unit, whether to send the service data received by the third hybrid service transmission line card or the service data received by the fourth hybrid service transmission line card to the second customer service access line card according to whether to detect the alarm of the predetermined high-order OTU port includes any one or more of the following:
when detecting the alarm of the third higher-order port, the second centralized control unit sends the service data received by the fourth mixed service transmission line card to the second customer service access line card;
and when the alarm of the third higher-order port is not detected, the second centralized control unit sends the service data received by the third mixed service transmission line card to the second customer service access line card.
When the predetermined high-order OTU port includes a third high-order OTU port and a fourth high-order OTU port, the determining, by the second centralized control unit, whether to send the service data received by the third hybrid service transmission line card or the service data received by the fourth hybrid service transmission line card to the second customer service access line card according to whether to detect the alarm of the predetermined high-order OTU port includes any one or more of:
when detecting the alarm of the third high-order OTU port and not detecting the alarm of the fourth high-order OTU port, the second centralized control unit sends the service data received by the fourth mixed service transport line card to the second customer service access line card;
when the alarm of the third high-order OTU port is not detected and the alarm of the fourth high-order OTU port is detected, the second centralized control unit sends the service data received by the third mixed service transport line card to the second customer service access line card;
when the alarm of the third higher-order OTU port is not detected and the alarm of the fourth higher-order OTU port is not detected, the second centralized control unit sends the service data received by the third mixed service transport line card to the second customer service access line card.
In another embodiment of the present invention, before the third hybrid service transport line card receives the service data through the third high-order OTU port, the method further includes:
and the second centralized control unit copies the second service configuration information of the third mixed service transmission line card to the fourth mixed service transmission line card.
The embodiment of the invention realizes the switching protection of the service through the protection path composed of the second mixed service transmission line card and the fourth mixed service transmission line card, and the alarm of the high-order OTU port comprises the alarm of an optical layer and the alarm of a service layer, and the protection is carried out before the OTN line is damaged, so the fault detection efficiency is improved, and under the condition of not replacing the related customer service access line card, the protection deployment of the mixed service is realized through software upgrading and newly adding the mixed service transmission line card, the configuration of the protection group is optimized, the external appearance of the protection group is concise, the operation and maintenance are convenient, and the integration level is improved.
Another embodiment of the present invention provides a service protection device, which includes a processor and a computer-readable storage medium, where instructions are stored in the computer-readable storage medium, and when the instructions are executed by the processor, the service protection device implements any one of the service protection methods described above.
Another embodiment of the present invention proposes a computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of any of the above-mentioned service protection methods.
Referring to fig. 3, another embodiment of the present invention provides a service protection device (e.g., a first device), including:
the first customer service access line card is used for receiving service data and sending the service data to the first centralized control unit;
the first centralized control unit is used for receiving the service data, copying the service data into two parts according to the protection configuration information, and respectively sending the two parts to the first mixed service transmission line card and the second mixed service transmission line card;
the first hybrid service transmission line card is used for sending the service data to the third hybrid service transmission line card through the first high-order OTU port according to the first service configuration information;
the second mixed service transmission line card is used for sending the service data to a fourth mixed service transmission line card through a second high-order OTU port according to the first service configuration information;
the first mixed service transmission line card and the second mixed service transmission line card have a protection relationship, and the third mixed service transmission line card and the fourth mixed service transmission line card have a protection relationship.
In another embodiment of the present invention, the first centralized control unit is further configured to:
and copying the first service configuration information of the first mixed service transmission line card to the second mixed service transmission line card for service configuration.
Referring to fig. 3, another embodiment of the present invention provides a service protection device (e.g., a second device), including:
the third hybrid service transmission line card is used for receiving the service data through a third high-order OTU port and sending the received service data to the second centralized control unit according to the second service configuration information;
the fourth hybrid service transmission line card is used for receiving the service data through a fourth high-order OTU port and sending the received service data to the second centralized control unit according to the second service configuration information;
the second centralized control unit is used for determining whether the service data received by the third mixed service transmission line card or the service data received by the fourth mixed service transmission line card is sent to the second customer service access line card according to whether the alarm of the predetermined high-order OTU port is detected;
wherein the third mixed service transmission line card and the fourth mixed service transmission line card have a protection relationship; the predetermined high order OTU port includes: a third higher order OTU port; or a third higher order OTU port and a fourth higher order OTU port.
In this embodiment of the present invention, the second centralized control unit is specifically configured to execute any one or more of the following:
when the alarm of the third high-order port is detected, the service data received by the fourth mixed service transmission line card is sent to the second customer service access line card;
and when the alarm of the third high-order port is not detected, sending the service data received by the third mixed service transmission line card to the second customer service access line card.
In this embodiment of the present invention, the second centralized control unit is specifically configured to execute any one or more of the following:
when detecting the alarm of the third high-order OTU port and not detecting the alarm of the fourth high-order OTU port, the second centralized control unit sends the service data received by the fourth mixed service transport line card to the second customer service access line card;
when the alarm of the third high-order OTU port is not detected and the alarm of the fourth high-order OTU port is detected, the second centralized control unit sends the service data received by the third mixed service transport line card to the second customer service access line card;
when the alarm of the third higher-order OTU port is not detected and the alarm of the fourth higher-order OTU port is not detected, the second centralized control unit sends the service data received by the third mixed service transport line card to the second customer service access line card.
The embodiment of the invention realizes the switching protection of the service through the protection path composed of the second mixed service transmission line card and the fourth mixed service transmission line card, and the alarm of the high-order OTU port comprises the alarm of an optical layer and the alarm of a service layer, and the protection is carried out before the OTN line is damaged, so the fault detection efficiency is improved, and under the condition of not replacing the related customer service access line card, the protection deployment of the mixed service is realized through software upgrading and newly adding the mixed service transmission line card, the configuration of the protection group is optimized, the external appearance of the protection group is concise, the operation and maintenance are convenient, and the integration level is improved.
Referring to fig. 3, another embodiment of the present invention provides a service protection system, including: a first device and a second device;
wherein the first device comprises: the system comprises a first customer service access line card, a first centralized control unit, a first mixed service transmission line card and a second mixed service transmission line card;
the second device includes: the system comprises a third mixed service transmission line card, a fourth mixed service transmission line card, a second centralized control unit and a second customer service access line card;
wherein the first mixed service transmission line card and the second mixed service transmission line card have a protection relationship, and the third mixed service transmission line card and the fourth mixed service transmission line card have a protection relationship;
the first customer service access line card is used for receiving service data and sending the service data to the first centralized control unit;
the first centralized control unit is used for receiving the service data, copying the service data into two parts according to the protection configuration information, and respectively sending the two parts to the first mixed service transmission line card and the second mixed service transmission line card;
the first hybrid service transmission line card is used for sending the service data to the third hybrid service transmission line card through the first high-order OTU port according to the first service configuration information;
the second mixed service transmission line card is used for sending the service data to a fourth mixed service transmission line card through a second high-order OTU port according to the first service configuration information;
the third hybrid service transmission line card is used for receiving the service data through a third high-order OTU port and sending the received service data to the second centralized control unit according to the second service configuration information;
the fourth hybrid service transmission line card is used for receiving the service data through a fourth high-order OTU port and sending the received service data to the second centralized control unit according to the second service configuration information;
the second centralized control unit is used for determining whether the service data received by the third mixed service transmission line card or the service data received by the fourth mixed service transmission line card is sent to the second customer service access line card according to whether the alarm of the predetermined high-order OTU port is detected; the predetermined high order OTU port includes: a third higher order OTU port; or a third higher order OTU port and a fourth higher order OTU port.
In another embodiment of the present invention, the first centralized control unit is further configured to:
and copying the first service configuration information of the first mixed service transmission line card to the second mixed service transmission line card for service configuration.
In another embodiment of the present invention, the second centralized control unit is further configured to:
and copying the second service configuration information of the third mixed service transmission line card to the fourth mixed service transmission line card for service configuration.
In this embodiment of the present invention, the second centralized control unit is specifically configured to execute any one or more of the following:
when detecting the alarm of the third higher-order port, the second centralized control unit sends the service data received by the fourth mixed service transmission line card to the second customer service access line card;
and when the alarm of the third higher-order port is not detected, the second centralized control unit sends the service data received by the third mixed service transmission line card to the second customer service access line card.
In this embodiment of the present invention, the second centralized control unit is specifically configured to execute any one or more of the following:
when detecting the alarm of the third high-order OTU port and not detecting the alarm of the fourth high-order OTU port, the second centralized control unit sends the service data received by the fourth mixed service transport line card to the second customer service access line card;
when the alarm of the third high-order OTU port is not detected and the alarm of the fourth high-order OTU port is detected, the second centralized control unit sends the service data received by the third mixed service transport line card to the second customer service access line card;
when the alarm of the third higher-order OTU port is not detected and the alarm of the fourth higher-order OTU port is not detected, the second centralized control unit sends the service data received by the third mixed service transport line card to the second customer service access line card.
The embodiment of the invention realizes the switching protection of the service through the protection path composed of the second mixed service transmission line card and the fourth mixed service transmission line card, and the alarm of the high-order OTU port comprises the alarm of an optical layer and the alarm of a service layer, and the protection is carried out before the OTN line is damaged, so the fault detection efficiency is improved, and under the condition of not replacing the related customer service access line card, the protection deployment of the mixed service is realized through software upgrading and newly adding the mixed service transmission line card, the configuration of the protection group is optimized, the external appearance of the protection group is concise, the operation and maintenance are convenient, and the integration level is improved.
The specific implementation process of the service protection device and the service protection system is the same as that of the service protection method in the foregoing embodiment, and is not described here again.
It will be understood by those of ordinary skill in the art that all or some of the steps of the methods, systems, functional modules/units in the devices disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. In a hardware implementation, the division between functional modules/units mentioned in the above description does not necessarily correspond to the division of physical components; for example, one physical component may have multiple functions, or one function or step may be performed by several physical components in cooperation. Some or all of the components may be implemented as software executed by a processor, such as a digital signal processor or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). The term computer storage media includes volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as is well known to those of ordinary skill in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, Digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can accessed by a computer. In addition, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media as known to those skilled in the art.
Although the embodiments of the present invention have been described above, the descriptions are only used for understanding the embodiments of the present invention, and are not intended to limit the embodiments of the present invention. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the embodiments of the invention as defined by the appended claims.
Claims (11)
1. A service protection method comprises the following steps:
the first customer service access line card receives service data and sends the service data to the first centralized control unit;
the first centralized control unit receives the service data, duplicates the service data into two parts according to protection configuration information, and respectively sends the two parts to a first mixed service transmission line card and a second mixed service transmission line card;
the first mixed service transmission line card sends the service data to a third mixed service transmission line card through a first high-order optical channel transmission unit (OTU) port according to first service configuration information, and the second mixed service transmission line card sends the service data to a fourth mixed service transmission line card through a second high-order OTU port according to the first service configuration information;
the first mixed service transmission line card and the second mixed service transmission line card have a protection relationship, and the third mixed service transmission line card and the fourth mixed service transmission line card have a protection relationship.
2. The method of claim 1, wherein prior to the first customer service access line card receiving service data, the method further comprises:
and the first centralized control unit copies the first service configuration information to the second mixed service transmission line card for service configuration.
3. A service protection method comprises the following steps:
the third mixed service transmission line card receives the service data through the third high-order optical channel transmission unit OTU port, and sends the service data to the second centralized control unit according to the second service configuration information;
a fourth mixed service transmission line card receives the service data through a fourth high-order OTU port, and sends the service data to the second centralized control unit according to the second service configuration information;
the second centralized control unit determines whether to send the service data received by the third mixed service transmission line card or the service data received by the fourth mixed service transmission line card to the second customer service access line card according to whether to detect the alarm of the predetermined high-order OTU port;
wherein the third mixed service transmission line card and the fourth mixed service transmission line card have a protection relationship; the predetermined high order OTU port includes: a third higher order OTU port; or a third higher order OTU port and a fourth higher order OTU port.
4. The method of claim 3, wherein before the third hybrid service transport line card receives the service data through the third high-order OTU port, the method further comprises:
and the second centralized control unit copies the second service configuration information of the third mixed service transmission line card to the fourth mixed service transmission line card for service configuration.
5. The method according to claim 3 or 4, wherein when the predetermined higher-order OTU port includes a third higher-order OTU port, the determining, by the second centralized control unit, whether to send the service data received by the third hybrid service transmission line card or the service data received by the fourth hybrid service transmission line card to the second customer service access line card according to whether the alarm of the predetermined higher-order OTU port is detected includes any one or more of:
when detecting the alarm of the third high-order OTU port, the second centralized control unit sends the service data received by the fourth mixed service transmission line card to the second customer service access line card;
and when the alarm of the third high-order OTU port is not detected, the second centralized control unit sends the service data received by the third mixed service transport line card to the second customer service access line card.
6. The method according to claim 3 or 4, wherein when the predetermined higher-order OTU port includes a third higher-order OTU port and a fourth higher-order OTU port, the determining, by the second centralized control unit, whether to send the service data received by the third hybrid service transport line card or the service data received by the fourth hybrid service transport line card to the second customer service access line card according to whether the alarm of the predetermined higher-order OTU port is detected includes any one or more of:
when detecting the alarm of the third high-order OTU port and not detecting the alarm of the fourth high-order OTU port, the second centralized control unit sends the service data received by the fourth mixed service transport line card to the second customer service access line card;
when the alarm of the third high-order OTU port is not detected and the alarm of the fourth high-order OTU port is detected, the second centralized control unit sends the service data received by the third mixed service transport line card to the second customer service access line card;
when the alarm of the third higher-order OTU port is not detected and the alarm of the fourth higher-order OTU port is not detected, the second centralized control unit sends the service data received by the third mixed service transport line card to the second customer service access line card.
7. A traffic protection device comprising a processor and a computer-readable storage medium having instructions stored thereon, wherein the instructions, when executed by the processor, implement a traffic protection method according to any of claims 1 to 6.
8. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the traffic protection method according to any one of claims 1 to 6.
9. A traffic protection device, comprising:
the first customer service access line card is used for receiving service data and sending the service data to the first centralized control unit;
the first centralized control unit is used for receiving the service data, copying the service data into two parts according to protection configuration information, and respectively sending the two parts to a first mixed service transmission line card and a second mixed service transmission line card;
the first hybrid service transmission line card is used for sending the service data to a third hybrid service transmission line card through a first high-order optical channel transmission unit OTU port according to first service configuration information;
the second hybrid service transmission line card is used for sending the service data to a fourth hybrid service transmission line card through a second high-order OTU port according to the first service configuration information;
the first mixed service transmission line card and the second mixed service transmission line card have a protection relationship, and the third mixed service transmission line card and the fourth mixed service transmission line card have a protection relationship.
10. A traffic protection device, comprising:
the third hybrid service transmission line card is used for receiving service data through a third high-order optical channel transmission unit OTU port and sending the service data to the second centralized control unit according to second service configuration information;
the fourth hybrid service transmission line card is used for receiving the service data through a fourth high-order OTU port and sending the service data to a second centralized control unit according to the second service configuration information;
the second centralized control unit is used for determining whether the service data received by the third mixed service transmission line card or the service data received by the fourth mixed service transmission line card is sent to the second customer service access line card according to whether the alarm of the predetermined high-order OTU port is detected;
wherein the third mixed service transmission line card and the fourth mixed service transmission line card have a protection relationship; the predetermined high order OTU port includes: a third higher order OTU port; or a third higher order OTU port and a fourth higher order OTU port.
11. A traffic protection system comprising: a first device and a second device;
wherein the first device comprises: the system comprises a first customer service access line card, a first centralized control unit, a first mixed service transmission line card and a second mixed service transmission line card;
the second device includes: the system comprises a third mixed service transmission line card, a fourth mixed service transmission line card, a second centralized control unit and a second customer service access line card;
wherein the first mixed service transmission line card and the second mixed service transmission line card have a protection relationship, and the third mixed service transmission line card and the fourth mixed service transmission line card have a protection relationship;
the first customer service access line card is used for receiving service data and sending the service data to a first centralized control unit;
the first centralized control unit is used for receiving the service data, copying the service data into two parts according to protection configuration information, and respectively sending the two parts to a first mixed service transmission line card and a second mixed service transmission line card;
the first mixed service transmission line card is used for sending the service data to a third mixed service transmission line card through a first high-order optical channel transmission unit OTU port according to first service configuration information;
the second hybrid service transmission line card is used for sending the service data to a fourth hybrid service transmission line card through a second high-order OTU port according to the first service configuration information;
the third hybrid service transmission line card is configured to receive the service data through a third high-order OTU port, and send the service data to the second centralized control unit according to second service configuration information;
the fourth hybrid service transmission line card is configured to receive the service data through a fourth high-order OTU port, and send the service data to the second centralized control unit according to second service configuration information;
the second centralized control unit is configured to determine whether to send the service data received by the third hybrid service transmission line card or the service data received by the fourth hybrid service transmission line card to a second customer service access line card according to whether an alarm of a predetermined high-order OTU port is detected; wherein the predetermined high order OTU port comprises: a third higher order OTU port; or a third higher order OTU port and a fourth higher order OTU port.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910613233.1A CN112218179B (en) | 2019-07-09 | 2019-07-09 | Service protection method, device and system |
| PCT/CN2020/094647 WO2021004211A1 (en) | 2019-07-09 | 2020-06-05 | Service protection method, apparatus and system |
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| CN201910613233.1A CN112218179B (en) | 2019-07-09 | 2019-07-09 | Service protection method, device and system |
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| CN112218179B CN112218179B (en) | 2023-05-09 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113179458A (en) * | 2021-04-26 | 2021-07-27 | 中国电信集团工会上海市委员会 | Signal routing management system with end-to-end protection |
| WO2023231387A1 (en) * | 2022-06-02 | 2023-12-07 | 中国电信股份有限公司 | Optical channel protection method, apparatus and system |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040109408A1 (en) * | 2002-12-06 | 2004-06-10 | Packetlight Networks, Ltd. | Fast protection for TDM and data services |
| CN101656573A (en) * | 2009-09-07 | 2010-02-24 | 中兴通讯股份有限公司 | Method and optical line terminal for protecting passive optical network service |
| CN105703936A (en) * | 2014-11-28 | 2016-06-22 | 中兴通讯股份有限公司 | Control method and device and master control board |
| WO2016177229A1 (en) * | 2015-07-27 | 2016-11-10 | 中兴通讯股份有限公司 | Method and apparatus for processing operation, administration and maintenance oam messages |
| CN108462601A (en) * | 2017-11-22 | 2018-08-28 | 上海欣诺通信技术股份有限公司 | More protection group reverse methods, device and network element device applied to optical transport network |
| CN108462549A (en) * | 2017-11-22 | 2018-08-28 | 上海欣诺通信技术股份有限公司 | Protection group is superimposed reverse method, control device and optical communication equipment |
| CN108650140A (en) * | 2018-05-21 | 2018-10-12 | 国家电网公司信息通信分公司 | The automation aided analysis method and system of optical transmission device traffic failure |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100536369C (en) * | 2004-04-21 | 2009-09-02 | 华为技术有限公司 | Service protection device in optical communication network and method thereof |
| CN109104647B (en) * | 2018-06-14 | 2021-06-15 | 烽火通信科技股份有限公司 | Ethernet service interrupt processing method, system and networking system |
-
2019
- 2019-07-09 CN CN201910613233.1A patent/CN112218179B/en active Active
-
2020
- 2020-06-05 WO PCT/CN2020/094647 patent/WO2021004211A1/en active Application Filing
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040109408A1 (en) * | 2002-12-06 | 2004-06-10 | Packetlight Networks, Ltd. | Fast protection for TDM and data services |
| CN101656573A (en) * | 2009-09-07 | 2010-02-24 | 中兴通讯股份有限公司 | Method and optical line terminal for protecting passive optical network service |
| CN105703936A (en) * | 2014-11-28 | 2016-06-22 | 中兴通讯股份有限公司 | Control method and device and master control board |
| WO2016177229A1 (en) * | 2015-07-27 | 2016-11-10 | 中兴通讯股份有限公司 | Method and apparatus for processing operation, administration and maintenance oam messages |
| CN108462601A (en) * | 2017-11-22 | 2018-08-28 | 上海欣诺通信技术股份有限公司 | More protection group reverse methods, device and network element device applied to optical transport network |
| CN108462549A (en) * | 2017-11-22 | 2018-08-28 | 上海欣诺通信技术股份有限公司 | Protection group is superimposed reverse method, control device and optical communication equipment |
| CN108650140A (en) * | 2018-05-21 | 2018-10-12 | 国家电网公司信息通信分公司 | The automation aided analysis method and system of optical transmission device traffic failure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113179458A (en) * | 2021-04-26 | 2021-07-27 | 中国电信集团工会上海市委员会 | Signal routing management system with end-to-end protection |
| WO2023231387A1 (en) * | 2022-06-02 | 2023-12-07 | 中国电信股份有限公司 | Optical channel protection method, apparatus and system |
Also Published As
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| CN112218179B (en) | 2023-05-09 |
| WO2021004211A1 (en) | 2021-01-14 |
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