CN112218179B - Service protection method, device and system - Google Patents
Service protection method, device and system Download PDFInfo
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- CN112218179B CN112218179B CN201910613233.1A CN201910613233A CN112218179B CN 112218179 B CN112218179 B CN 112218179B CN 201910613233 A CN201910613233 A CN 201910613233A CN 112218179 B CN112218179 B CN 112218179B
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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 service data are duplicated into two parts at the transmitting end, and the two parts are transmitted through the first mixed service transmission line card and the 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 switching protection of the service through the protection path formed by the second mixed service transmission line card and the fourth mixed service transmission line card, and the protection is carried out before the damage of the OTN line because the alarm of the high-order OTU port comprises the alarm of the optical layer and the alarm of the service layer, thereby improving the efficiency of fault detection.
Description
Technical Field
The embodiment of the invention relates to the field of communication, in particular to a service protection method, device and system.
Background
With the rapid development of ethernet, the requirements of multiple services and large bearers such as synchronous digital hierarchy (SDH, synchronous Digital Hierarchy), optical transport network (OTN, optical Transport Network), packet transport network (PTN, packet Transport Network) services are also becoming more and more urgent, and the transmission of services from GB/s to TB/s level is largely distributed in the communication access, metropolitan area and backbone transmission systems. Once faults such as main line damage and the like occur, a large amount of services are interrupted, a reliable main line service protection system must be designed, the survivability of the OTN transmission network is improved, and the protection switching technology is perfected and improved.
As shown in fig. 1, the protection system is generally composed of an automatic power state (APS, automatic Power State) Controller (APSC, APS Controller), a detector (Monitor), an actuator (Selector), and a protocol transmitter. Wherein the detector is responsible for the detection of alarms; the APS controller is responsible for calculating a protection protocol and controlling the whole protection system flow; the executor is responsible for the switching of the service; the protocol forwarder is responsible for the transport of the APS protocol.
As shown in fig. 2, the conventional optical channel protection is implemented by means of an optical protection (OP, optical Protection) board, and the controller, the detector, and the executor are all on the OP board, and when various customer services are converged on the customer service access line card of the first device, the customer service is transmitted on the hybrid service transmission line card of the first device, and is transmitted to the hybrid service transmission line card of the second device through the optical fiber, and then is output from the customer service access line card of the second device. This type of protection detects the change of optical power by providing an OP plate (i.e., SOP in fig. 2) on the optical fiber, and when the optical power is below a certain threshold, the switching is triggered, thereby implementing the switching protection. However, the method needs an additional optical protection unit (i.e., an OP board) to protect, has low fault detection efficiency, namely, can only detect the alarm triggering switching of the optical layer, but can not detect the alarm signal of the service layer, and can not trigger switching in time when the alarm signal is generated on the service layer, thereby causing failure of 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, copies 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 the third mixed service transmission line card through a port of a first high-order optical channel transmission unit (OTU, optical Channel Transport Unit) according to the first service configuration information, and the second mixed service transmission line card sends the service data to the fourth mixed service transmission line card through a port of a second high-order OTU 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 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 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 the alarm of the preset high-order OTU port is detected;
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 device, which comprises a processor and a computer readable storage medium, wherein instructions are stored in the computer readable storage medium, and when the instructions are executed by the processor, any service protection method is realized.
An embodiment of the present invention provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of any of the traffic protection methods described above.
The embodiment of the invention provides a service protection device, which comprises:
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 transmitting 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 is used for sending the service data to the third mixed 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 the fourth mixed service transmission line card through the 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 device, which comprises:
the third hybrid service transmission line card is used for receiving 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 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 preset high-order OTU port is detected;
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.
The embodiment of the invention provides a service protection system, which comprises: 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;
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 transmitting 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 is used for sending the service data to the third mixed 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 the fourth mixed service transmission line card through the second high-order OTU port according to the first service configuration information;
the third hybrid service transmission line card is used for receiving 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 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 preset 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 transmitting end, a first customer service access line card receives service data and transmits the service data to a first centralized control unit; the first centralized control unit receives the service data, copies 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 the 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 service data to the 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; at the receiving end, the third mixed service transmission line card receives service data through a third high-order OTU port, and the received service data is sent to the second centralized control unit according to the second service configuration information; the fourth mixed service transmission line card receives 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 the alarm of the preset 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 realizes the switching protection of the service through the protection path formed by the second mixed service transmission line card and the fourth mixed service transmission line card, and the protection is realized by the mode of upgrading software and newly adding the mixed service transmission line card under the condition of not replacing the related customer service access line card because the alarm of the high-order OTU port comprises the alarm of the optical layer and the alarm of the service layer and the protection is carried out before the OTN line is damaged, thereby improving the efficiency of fault detection, optimizing the configuration of the protection group, ensuring that the protection group is concise to the outside, facilitating the operation and maintenance and improving the integration level.
Additional features and advantages of embodiments of the invention will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of embodiments of the invention. The objectives and other advantages of embodiments of the invention may 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 technical solution of the embodiments of the present invention, and are incorporated in and constitute a part of this specification, illustrate and explain the technical solution of the embodiments of the present invention, and not to limit the technical solution of the embodiments of the present 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 higher order OTU port according to an embodiment of the present invention;
fig. 4 (a) is a schematic diagram of a low-order OTU port between a hybrid service transmission line card and a second centralized control unit without protection configuration according to an embodiment of the present invention;
fig. 4 (b) is a schematic diagram one of a low-order OTU port between a hybrid service transmission line card and a second centralized control unit according to an embodiment of the present invention having a protection configuration;
Fig. 4 (c) is a schematic diagram two when the low-order OTU port between the hybrid service transmission line card and the second centralized control unit has a protection configuration according to the embodiment of the present invention;
fig. 4 (d) is a schematic diagram III of a case where a low-order OTU port between a hybrid service transmission line card and a second centralized control unit has a 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, without conflict, the embodiments of the present invention and features of the embodiments may be arbitrarily combined with each other.
The steps illustrated in the flowchart of the figures may be performed in a computer system, such as a set of computer-executable instructions. Also, while a logical order is depicted in the flowchart, in some cases, the steps depicted or described may be performed in a different order than presented herein.
Referring to fig. 3, in the embodiment of the present invention, a second hybrid service transmission line card is set in the first device, and a fourth hybrid service transmission line card is set in the second device, as protection paths of the first hybrid service transmission line card and the third hybrid service transmission line card. That is, the first hybrid traffic transmission line card and the second hybrid traffic transmission line card have a protection relationship, and the third hybrid traffic transmission line card and the fourth hybrid traffic transmission line card have a protection relationship.
In fig. 3, service transmission is performed between the first hybrid service transmission line card and the third hybrid service transmission line card through a high-order OTU port, service transmission is performed between the second hybrid service transmission line card and the fourth hybrid service transmission line card through a high-order OTU port, service transmission is performed between the third hybrid service transmission line card and the second centralized control unit through a low-order OTU port, and service transmission is performed between the fourth hybrid service transmission line card and the second centralized control unit through a low-order OTU port.
When a protection path is created, when high-order OTU port protection is configured, a protection path with the same low-order OTU port protection configuration as that of a working path is replicated, so that the low-order OTU port on the protection path can also perform protection switching, and therefore, services (such as PTN service, SDH service, etc.) transmitted through the low-order OTU port on the protection path can be ensured to be subjected to protection switching, as shown in fig. 4 (a), the low-order OTU port has no protection configuration, a protection path without low-order OTU port protection is replicated, as shown in fig. 4 (b), fig. 4 (c), and fig. 4 (d), and when the low-order OTU port has protection configuration, a protection path with the same low-order OTU port protection is replicated. For example, for an intersection that is hosted as higher order A1, a source is replicated unchanged to a intersection that is hosted as A2.
When the protection switching is performed, the protection switching of the high-order OTU port is performed first, and then the protection switching of the low-order OTU port is performed. For example, after the protection switching of the higher order OTU port, a switching operation is performed for the intersection where the source is the higher order A1, that is, the destination is unchanged, and the source is switched to the intersection of the higher order A2, 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 for the low-order according to the low-order protection switching. The external presentation is the original working path configuration, and the crossover is only internal processing and is not presented to the outside for the protection channel.
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 mixed service transmission line card and the third mixed service transmission line card, and the protection path refers to a path formed by the second mixed service transmission line card and the fourth mixed service transmission line card.
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 is arranged to receive a first signal,
the first customer service access line card receives the service data and sends the service data to the first centralized control unit;
after the first centralized control unit performs cross scheduling, service data are duplicated into two parts according to the protection configuration information and are respectively sent to the first mixed service transmission line card and the second mixed service transmission line card;
the cross-dispatching 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, after the first centralized control unit, the first customer service access line card is responsible for changing multiple customer signals into multiple ODU0, ODU1, ODU2 signals, and through the first centralized control unit, multiple ODUk signals (which may come from a board without a branch) may be combined into an OTU2 (10G) of a circuit board. Thus, the OTU2 (wavelength division side) can be utilized flexibly. It is also easy for customer service to change another wavelength transmission, so long as the crossover is modified remotely, no fiber connection is needed.
The protection configuration information includes a working hybrid service transmission line card having a protection relationship, for example, a first hybrid service transmission line card and a second hybrid service transmission line card have a protection relationship, and a third hybrid service transmission line card and a fourth hybrid service transmission line card have a protection relationship.
The first mixed service transmission line card sends service data to the 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 the fourth mixed service transmission line card through the second high-order OTU port and the optical fiber according to the first service configuration information.
In the second device, the first device is configured to,
the third mixed service transmission line card receives 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 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 the alarm of the third high-order OTU port is detected, 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 transmission line card to the second customer service access line card.
In one illustrative example, the detector in the protection system as shown in fig. 1 is disposed in the third hybrid traffic transmission line card, the actuator is disposed in the second centralized control unit, and the controller and the protocol mediator are disposed in the third hybrid traffic transmission 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, after the controller performs APS protocol calculation (following ITU-T G.873.1-OTN: linear protection), namely, the current customer service is calculated to be received from the working path or from the protection path according to the alarm state and the protection attribute of the working path, a decision result is sent to the executor, the executor switches the low-order channel service carried on the failure path to the protection path, namely, the service data received by the fourth mixed service transmission line card is sent to the second customer service access line card, and the normal service signal is transmitted by the protection path, so that the service protection is achieved.
In another illustrative example, the detectors in the protection system as shown in fig. 1 are provided in the third and fourth hybrid traffic transmission line cards, the executors are provided in the second centralized control unit, and the controllers and protocol forwarders are provided in the third hybrid traffic transmission line card or the second centralized control unit.
When the detector detects the alarm of the third high-order OTU port and/or the fourth high-order OTU port, the alarm is sent to the controller, after the controller performs APS protocol calculation (following ITU-T G.873.1-OTN: linear protection), that is, the current customer service is calculated to be received from the working path or from the protection path according to the alarm state and the protection attribute of the working path, the decision result is sent to the executor, the executor switches the low-order channel service carried on the failure path to the protection path, that is, the service data received by the fourth mixed service transmission line card is sent to the second customer service access line card, and the normal service signal is transmitted by the protection path, so that the service protection is achieved.
Referring to fig. 5, another embodiment of the present invention proposes a service protection method, including:
and 500, receiving service data by the first customer service access line card and sending the service data to the first centralized control unit.
In the embodiment of the invention, after the first customer service access line card receives the service data, the first customer service access line card directly transmits the service data to the first centralized control unit for mapping and packaging after mapping the service data.
When the different types of service data are subjected to adaptation processing (namely mapping processing, that is, loading different customer services into a standard container for transmission) through the first customer service access line card, the service data are sent to the first centralized control unit for scheduling and forwarding processing.
In the embodiment of the invention, the first hybrid service transmission line card performs general framing processing on service data according to the first service configuration information, encapsulates the service data into an optical data unit (ODU, optical Data Unit) k, then sends the service data through a first high-order OTU port, and the second hybrid service transmission line card performs general framing processing on the service data according to the first service configuration information, encapsulates the service data into an ODUk, and then sends the service data through a second high-order OTU port.
In another embodiment of the present invention, before the first customer service access line card receives the service data, the method further includes:
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 proposes a service protection method, including:
and 600, receiving service data by the third hybrid service transmission line card 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.
And 601, receiving service data by a fourth mixed service transmission line card through a fourth high-order OTU port, and sending the received service data to a second centralized control unit according to second service configuration information.
In the embodiment of the present invention, the third hybrid service transmission line card and the fourth hybrid service transmission line card demap the encapsulated service data from the ODUk according to the second service configuration information, and send the encapsulated service data to the second centralized control unit.
In the embodiment of the invention, the third mixed service transmission line card and the fourth mixed service transmission line card have a protection relationship.
In the 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 according to whether the alarm of the predetermined high-order OTU port is detected, 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 includes any one or more of:
when the alarm of the third high-order port is detected, 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 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 according to whether the alarm of the predetermined high-order OTU port is detected, 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 includes any one or more of:
When the alarm of the third high-order OTU port is detected and the alarm of the fourth high-order OTU port is not detected, the second centralized control unit sends the service data received by the fourth hybrid service transmission line card to the second customer service access line card;
when no alarm of the third high-order OTU port is detected and an alarm of the fourth high-order OTU port is detected, the second centralized control unit sends the service data received by the third hybrid 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 and the alarm of the fourth high-order OTU port is not detected, the second centralized control unit sends the service data received by the third hybrid service transmission line card to the second customer service access line card.
In another embodiment of the present invention, before the third hybrid service transmission line card receives the service data through the third higher 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 formed by the second mixed service transmission line card and the fourth mixed service transmission line card, and the protection is realized by the mode of upgrading software and newly adding the mixed service transmission line card under the condition of not replacing the related customer service access line card because the alarm of the high-order OTU port comprises the alarm of the optical layer and the alarm of the service layer and the protection is carried out before the OTN line is damaged, thereby improving the efficiency of fault detection, optimizing the configuration of the protection group, ensuring that the protection group is concise to the outside, facilitating the operation and maintenance and improving the integration level.
Another embodiment of the present invention provides a service protection device, including 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.
Another embodiment of the present invention provides a computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of any of the traffic protection methods described above.
Referring to fig. 3, another embodiment of the present invention proposes a service protection apparatus (such as 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 transmitting 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 is used for sending the service data to the third mixed 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 the fourth mixed service transmission line card through the 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 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 to perform service configuration.
Referring to fig. 3, another embodiment of the present invention proposes a service protection apparatus (such as a second device), including:
the third hybrid service transmission line card is used for receiving 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 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 preset high-order OTU port is detected;
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 an embodiment of the present invention, the second centralized control unit is specifically configured to perform any one or more of the following:
When the alarm of the third high-order port is detected, sending 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 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 an embodiment of the present invention, the second centralized control unit is specifically configured to perform any one or more of the following:
when the alarm of the third high-order OTU port is detected and the alarm of the fourth high-order OTU port is not detected, the second centralized control unit sends the service data received by the fourth hybrid service transmission line card to the second customer service access line card;
when no alarm of the third high-order OTU port is detected and an alarm of the fourth high-order OTU port is detected, the second centralized control unit sends the service data received by the third hybrid 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 and the alarm of the fourth high-order OTU port is not detected, the second centralized control unit sends the service data received by the third hybrid service transmission 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 formed by the second mixed service transmission line card and the fourth mixed service transmission line card, and the protection is realized by the mode of upgrading software and newly adding the mixed service transmission line card under the condition of not replacing the related customer service access line card because the alarm of the high-order OTU port comprises the alarm of the optical layer and the alarm of the service layer and the protection is carried out before the OTN line is damaged, thereby improving the efficiency of fault detection, optimizing the configuration of the protection group, ensuring that the protection group is concise to the outside, facilitating the operation and maintenance and improving the integration level.
Referring to fig. 3, another embodiment of the present invention proposes 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;
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 transmitting 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 is used for sending the service data to the third mixed 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 the fourth mixed service transmission line card through the second high-order OTU port according to the first service configuration information;
the third hybrid service transmission line card is used for receiving 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 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 preset 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 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 to perform service configuration.
In another embodiment of the 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 to perform service configuration.
In an embodiment of the present invention, the second centralized control unit is specifically configured to perform any one or more of the following:
when the alarm of the third high-order port is detected, 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 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 an embodiment of the present invention, the second centralized control unit is specifically configured to perform any one or more of the following:
when the alarm of the third high-order OTU port is detected and the alarm of the fourth high-order OTU port is not detected, the second centralized control unit sends the service data received by the fourth hybrid service transmission line card to the second customer service access line card;
When no alarm of the third high-order OTU port is detected and an alarm of the fourth high-order OTU port is detected, the second centralized control unit sends the service data received by the third hybrid 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 and the alarm of the fourth high-order OTU port is not detected, the second centralized control unit sends the service data received by the third hybrid service transmission 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 formed by the second mixed service transmission line card and the fourth mixed service transmission line card, and the protection is realized by the mode of upgrading software and newly adding the mixed service transmission line card under the condition of not replacing the related customer service access line card because the alarm of the high-order OTU port comprises the alarm of the optical layer and the alarm of the service layer and the protection is carried out before the OTN line is damaged, thereby improving the efficiency of fault detection, optimizing the configuration of the protection group, ensuring that the protection group is concise to the outside, facilitating the operation and maintenance and improving the integration level.
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 will not be described herein again.
Those of ordinary skill in the art will appreciate that all or some of the steps, systems, functional modules/units in the apparatus, and methods disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. In a hardware implementation, the division between the 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 cooperatively by several physical components. 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 both 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 known to those skilled 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 be accessed by a computer. Furthermore, as is well known to those of ordinary skill in the art, 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.
Although the embodiments of the present invention are described above, the embodiments are merely used for facilitating understanding of the embodiments of the present invention, and are not intended to limit the embodiments of the present invention. Any person skilled in the art can make any modification and variation in form and detail without departing from the spirit and scope of the embodiments of the invention, but the scope of the embodiments of the invention is defined by the appended claims.
Claims (11)
1. A method of traffic protection, comprising:
the method comprises the steps that 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, copies the service data into two parts according to the protection configuration information and sends the two parts to a first mixed service transmission line card and a second mixed service transmission line card respectively;
the first hybrid service transmission line card sends 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, and the second hybrid service transmission line card sends 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.
2. The method of claim 1, wherein the first customer service access line card further comprises, prior to receiving service data:
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 method of traffic protection, comprising:
the third mixed service transmission line card receives service data through a third high-order optical channel transmission unit OTU port and sends the service data to a second centralized control unit according to 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 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 the alarm of the preset high-order OTU port is detected; the alarms of the high-order OTU ports comprise alarms of an optical layer and alarms of a service layer;
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 the third hybrid traffic transmission line card further comprises, prior to receiving traffic data via a third higher order OTU port:
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 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 an alarm of the predetermined high-order OTU port is detected includes any one or more of:
when the alarm of the third high-order OTU port is detected, 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 transmission line card to the second customer service access line card.
6. The method according to claim 3 or 4, wherein 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 traffic data received by the third hybrid traffic transmission line card or the traffic data received by the fourth hybrid traffic transmission line card to the second customer traffic access line card according to whether an alarm of the predetermined high-order OTU port is detected includes any one or more of:
when the alarm of the third high-order OTU port is detected and the alarm of the fourth high-order OTU port is not detected, the second centralized control unit sends the service data received by the fourth hybrid service transmission line card to the second customer service access line card;
when no alarm of the third high-order OTU port is detected and an alarm of the fourth high-order OTU port is detected, the second centralized control unit sends the service data received by the third hybrid 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 and the alarm of the fourth high-order OTU port is not detected, the second centralized control unit sends the service data received by the third hybrid service transmission 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 therein, which when executed by the processor, implement a traffic protection method according to any one of claims 1 to 6.
8. A computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the steps of the traffic protection method according to any of claims 1-6.
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 the protection configuration information and respectively transmitting 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 is used for sending the service data to the third mixed service transmission line card through the OTU port of the first high-order optical channel transmission unit according to the first service configuration information;
the second mixed service transmission line card is used for sending the service data to the 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.
10. A traffic protection device comprising:
the third hybrid service transmission line card is used for receiving service data through the OTU port of the third high-order optical channel transmission unit and sending the 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 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 preset high-order OTU port is detected; the alarms of the high-order OTU ports comprise alarms of an optical layer and alarms of a service layer;
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;
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 a first mixed service transmission line card and a second mixed service transmission line card;
The first hybrid service transmission line card is configured to send the service data to a third hybrid service transmission line card through an OTU port of a first high-order optical channel transmission unit according to first service configuration information;
the second hybrid service transmission line card is configured to send 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 includes: a third higher order OTU port; or a third higher order OTU port and a fourth higher order OTU port; the alarms of the high-order OTU ports comprise alarms of an optical layer and alarms of a service layer.
Priority Applications (2)
| 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 true CN112218179B (en) | 2023-05-09 |
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| CN113179458B (en) * | 2021-04-26 | 2022-11-11 | 中国电信集团工会上海市委员会 | Signal routing management system with end-to-end protection |
| CN115021803A (en) * | 2022-06-02 | 2022-09-06 | 中国电信股份有限公司 | Optical channel protection method, device and system |
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| 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 |
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| CN112218179A (en) | 2021-01-12 |
| WO2021004211A1 (en) | 2021-01-14 |
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