CN109120334B - Optical fiber position determining method and device, network element, storage medium and processor - Google Patents
Optical fiber position determining method and device, network element, storage medium and processor Download PDFInfo
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- CN109120334B CN109120334B CN201710495382.3A CN201710495382A CN109120334B CN 109120334 B CN109120334 B CN 109120334B CN 201710495382 A CN201710495382 A CN 201710495382A CN 109120334 B CN109120334 B CN 109120334B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
- H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
- H04B10/077—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using a supervisory or additional signal
- H04B10/0771—Fault location on the transmission path
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
- H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
- H04B10/079—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
- H04B10/0791—Fault location on the transmission path
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0062—Network aspects
- H04Q11/0067—Provisions for optical access or distribution networks, e.g. Gigabit Ethernet Passive Optical Network (GE-PON), ATM-based Passive Optical Network (A-PON), PON-Ring
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Abstract
The invention provides a method and a device for determining the position of an optical fiber, a network element, a storage medium and a processor; the method comprises the following steps: acquiring the appointed information of an unauthenticated optical network unit ONU corresponding to an appointed passive optical network PON port; wherein, the designated PON port is the PON port which has the unauthenticated ONU under the PON port and the configured ONU under the PON port is not online or the unauthenticated ONU under the PON port and the number of the unauthenticated ONU is larger than the designated threshold value; wherein the designation information includes at least one of: registering identification information and geographical position identification information; matching the specified information of the unauthenticated ONU corresponding to the specified PON port with the specified information of the configured ONU corresponding to the preset PON ports respectively to obtain a matching result; and determining the position of the wrong inserted optical fiber of the designated PON port according to the matching result.
Description
Technical Field
The present invention relates to the field of communications, and in particular, to a method and an apparatus for determining an optical fiber position, a network element, a storage medium, and a processor.
Background
In an xPON Network of a Passive Optical Network (PON), fig. 1 is a schematic diagram of a networking System in the related art, and as shown in fig. 1, the System is composed of an Element Management System (EMS), an Optical Line Terminal (OLT), an Optical Distribution Network (ODN), and a plurality of Optical Network Units (ONU): the OLT is used as central office equipment to manage, connect and assemble a plurality of ONU equipment by taking a PON port as a unit through an ODN network; the ONU equipment receives the management of the OLT equipment to realize the access of user services, thereby realizing the functions of data services, configuration management and the like; the ODN network is mainly composed of a trunk fiber, a plurality of branch fibers, and an optical splitter or other connectors for connecting the trunk fiber and the branch fibers. The xPON serves as a topological structure of point-to-multipoint: managing and maintaining a plurality of ONUs by taking PON ports corresponding to xPON OLTs as basic units: the xPON OLT firstly realizes the registration authentication of the ONU by taking the PON port as a unit, establishes a logic forwarding channel through logic configuration after the ONU finishes the registration authentication and realizes the uplink and downlink forwarding of the service/management data of a plurality of ONUs under the PON port in the following modes: the transmission direction from the OLT to the ONU is a downlink direction (downlink), the downlink direction adopts a Broadcast mode (Broadcast) to send data, and the ONU judges whether the data is valid according to a logic identifier distributed by the OLT and determines to receive or discard the data; the transmission direction from the ONU to the OLT is an uplink direction (upstream), the uplink direction employs a Time Division Multiple Access (TDMA), and the ONU must transmit an uplink Burst (Burst) signal according to an uplink Bandwidth timeslot (Bwmap, Bandwidth Map) allocated by the OLT.
Therefore, in the management and maintenance of the ONU by the xPON OLT, the basic functions are to realize the registration and authentication of the ONU: the registering means that a discovery window is periodically issued by the OLT under the condition that the optical path quality is normal, the ONU sends registration information under the control of the OLT and completes an automatic discovery process, as long as the optical path quality (such as distance, optical power and the like) meets requirements, the ONU can respond and interact according to a corresponding xPON standard, the interactive registration process can be completed according to protocols specified by different PON mechanisms, and the ONU becomes an unauthenticated ONU at this time.
The unauthenticated ONU under the PON port is in a state that data can not be forwarded, and service data can be normally forwarded only after authentication. The authentication is that the OLT compares basic registration authentication identification information (pre-configured or newly-established) of the ONU which is stored by taking the PON port as a unit with the basic registration authentication identification information which is reported by the ONU in an unauthenticated state. And when the corresponding ONU basic identification information at the PON port is empty or does not accord with the basic identification information reported by the ONU, the OLT keeps the ONU in an unauthenticated state.
The basic registration authentication identification information of the authentication interaction between the OLT and the ONU uniquely identifies the specific ONU, including but not limited to mac address, local (logical ONU identification)/local + pw (logical ONU identification + password) adopted in the EPON/10GEPON system, SN number (serial number), local (logical ONU identification)/local + pw (logical ONU identification + password) adopted in the GPON/XGPON system, and other information playing a role similar to ONU identification. In the authentication process between the OLT and the ONU, one or more basic identification information can be flexibly adopted for authentication according to an authentication mode configured based on the PON port as a unit.
By adopting the registration authentication mode, the judgment of the validity of the accessed ONU by the OLT is ensured. However, the premise is that the ONU basic identification information configured by the OLT based on the PON port and the basic identification information reported by the actual ONU can correspond to each other one by one, and the basic identification information allocated to each ONU is unique to prevent the ONU registration authentication information from conflicting.
The physical basis for ensuring the successful registration authentication process based on basic registration authentication identification information interaction between the OLT equipment and the ONU equipment of the xPON system is that the physical optical path connection between the OLT equipment and the ONU equipment in the xPON system is correct. Two major features of the xPON system present challenges to this:
first, due to the PToMP topology adopted by xPON and similar systems, for a specific PON port, there is a main fiber that needs to be in one-to-one correspondence, and a plurality of branch fibers that correspond to the main fiber through optical connectors such as optical splitters; for a PToP system, the optical fibers may correspond to the ports of the local side devices one to one; however, as local side devices (such as xPON OLT devices) have multiple ports, the corresponding optical fibers (including trunk optical fibers, branch optical fibers, etc.) of the PToMP/PToP devices are massive; further, for a network, the number of optical fibers managed by a plurality of PToMP/PToP local side devices (such as xPON OLT devices) is further increased. A large number of optical fibers (a main optical path and branch optical fibers) complete the connection between the olton port and the ONU in the engineering construction and operation and maintenance processes, and a great challenge is posed to the management of optical fiber resources of the ODN network.
And a second point: another feature of the xPON system is that the ODN network (including optical fibers and connecting devices) connecting the OLT and the ONUs does not contain electronic components and electronic power supplies. The above characteristics also result in the inability to identify and manage ODN network fiber resources in a traditional software manner based on the cost advantage. Namely, the system is faced with the huge contradiction of the massive optical fiber resources and the incapability of direct management.
Therefore, the above problems are essentially in the application scenarios of the xPON network, especially the massive optical fibers (including trunk optical fibers and branch optical fibers) caused by the P2MP topology, and the cost problems that the optical fiber resources determined by the passive characteristics of the xPON ODN cannot be located, queried and managed by the built-in software, and other management technologies may be adopted. The above problem makes it increasingly difficult to manage optical fibers in FTTx scenarios because the splitting ratio becomes larger at PON ports, which results in more branch optical fibers. Under the background of massive optical fibers, in more and more service application scenes of new construction, cutting and replacement, once optical fibers are inserted wrongly (including that a main optical fiber is inserted wrongly into an OLT PON port and a branch optical fiber is connected wrongly into the main optical fiber), the efficiency of searching corresponding wrong optical fibers and correct ports is extremely low, and the ONU registration authentication of the xPON OLT cannot meet the requirements based on service recovery due to the fact that the ONU registration authentication is easily interfered. The physical medium labels (such as paper labels) attached to the optical fibers, which are traditionally adopted, not only bring cost rise, but also have the disadvantages of low efficiency, low accuracy and easy external interference. The above problems also exist in other communication systems that employ similar networking topologies and network element sub-node management approaches.
In view of the above technical problems in the related art, no effective solution has been proposed at present.
Disclosure of Invention
The embodiment of the invention provides an optical fiber position determining method and device, a network element, a storage medium and a processor, which are used for at least solving the problem that the position of a wrongly inserted optical fiber cannot be determined in an xPON (x-passive optical network) in the related technology.
According to an embodiment of the present invention, there is provided an optical fiber position determination method including: acquiring the appointed information of an unauthenticated optical network unit ONU corresponding to an appointed passive optical network PON port; wherein, the designated PON port is a PON port which has unauthenticated ONUs below the PON port and configured ONUs below the PON port are not online or unauthenticated ONUs below the PON port and the number of the unauthenticated ONUs below the PON port is greater than a designated threshold value; wherein the designation information includes at least one of: registering identification information and geographical position identification information; the configured ONU is not used for indicating that the configured ONU is in a state of being incapable of forwarding the service; matching the specified information of the unauthenticated ONU corresponding to the specified PON port with the specified information of the configured ONU corresponding to the preset PON ports respectively to obtain a matching result; and determining the position of the wrong inserted optical fiber of the designated PON port according to the matching result.
Optionally, in a case that the designated information includes the geographic location identification information, the plurality of PON ports are all PON ports within a geographic coverage range corresponding to the designated PON port; the geographical coverage range is a geographical range covered by a circle which takes the center point of an area formed by all the ONUs of the designated PON port as the center of a circle and takes the longest distance in the distances between the designated PON port and all the ONUs as the radius.
Optionally, determining the position of the optical fiber inserted by mistake in the designated PON port according to the matching result includes: determining that a trunk fiber corresponding to the designated PON port is inserted incorrectly when the number of the designated information of the unauthenticated ONU corresponding to the designated PON port and the designated information of the configured ONU corresponding to the first PON port in the plurality of PON ports exceeds a first preset threshold value; and determining that the branch optical fiber corresponding to the specified PON port is inserted incorrectly when the number of the specified information of the unauthenticated ONU corresponding to the specified PON port is matched with the specified information of the configured ONU corresponding to the first PON port in the plurality of PON ports is less than or equal to a first preset threshold value.
Optionally, in a case that it is determined that the trunk optical fiber corresponding to the designated PON port is inserted incorrectly, the method further includes: determining a designated PON port as a misplugging PON port; determining the position of the first PON port as the position of the PON port to be inserted; generating a first alarm notification message, wherein the first alarm notification message comprises: and specifying the main optical fiber corresponding to the PON port to be inserted by mistake, inserting PON port information by mistake and inserting the PON port information.
Optionally, after determining the position of the first PON port as the position to be inserted into the PON port, the method further includes: marking a misplugging PON port and an insertible PON port by using a first designated mark; the first designated mark is used for indicating that the optical fiber needs to be replaced for the misplugging PON port and the corresponding PON port.
Optionally, in a case that it is determined that a branch optical fiber corresponding to the designated PON port is inserted incorrectly, the method further includes: generating a position to be accessed of an unauthenticated ONU corresponding to a designated PON port according to configuration information of a configured ONU corresponding to a first PON port; generating a second warning message, wherein the second warning message comprises: and appointing the branch optical fiber corresponding to the PON port to be inserted wrongly and appointing the position information which is required to be accessed by the unauthenticated ONU and corresponds to the PON port.
Optionally, determining the position of the optical fiber inserted by mistake in the designated PON port according to the matching result includes: under the condition that the specified information of the unauthenticated ONU corresponding to the specified PON port is not matched with the specified information of the configured ONU corresponding to any PON port in the plurality of PON ports, generating a network element relation table corresponding to the network element where the specified PON port is located according to the following information: specifying information specifying a PON port, an unauthenticated ONU corresponding to the specified PON port, and specifying information configuring an ONU corresponding to the plurality of PON ports; the network element relation table is used for showing the corresponding relation between the PON port of the network element where the designated PON port is located and the designated information of the unauthenticated ONU; and sending a third alarm message to the network manager, wherein the third alarm message is used for indicating that the specified information of the unauthenticated ONU corresponding to the specified PON port is not matched with the specified information of the configured ONU corresponding to any PON port in the plurality of PON ports.
Optionally, after sending, to the network manager, a third alarm message indicating that the designation information of the unauthenticated ONU corresponding to the designated PON port does not match the designation information of the configured ONU corresponding to any PON port in the plurality of PON ports, the method further includes: the network management obtains a network element relation table; the network manager compares the network element relation table with a preset network element relation table corresponding to a plurality of network elements to obtain a comparison result; and the network manager determines the position of the wrong inserted optical fiber of the designated PON port according to the comparison result.
Optionally, the determining, by the network manager according to the comparison result, the position of the inserted wrong optical fiber of the designated PON port includes: under the condition that the matching quantity of the specified information of the unauthenticated ONU corresponding to the specified PON port and the specified information of the configured ONU corresponding to the second PON port of the first network element in the plurality of network elements exceeds a second preset threshold value, the network manager determines that the trunk optical fiber corresponding to the specified PON port is inserted wrongly; and under the condition that the matching quantity of the specified information of the unauthenticated ONU corresponding to the specified PON port and the specified information of the configured ONU corresponding to the second PON port of the first network element in the plurality of network elements is less than or equal to a second preset threshold value, the network manager determines that the branch optical fiber corresponding to the specified PON port is inserted wrongly.
Optionally, when the network manager determines that the trunk optical fiber corresponding to the designated PON port is inserted incorrectly, the method further includes: the network management determines that the designated PON port is a misplugging PON port; the network manager determines the position of a second PON port of the first network element as the position of the port to be plugged; the network manager generates a fourth alarm notification message, wherein the fourth alarm notification message includes: the method comprises the steps of specifying a trunk optical fiber misplug corresponding to a PON port, information of a misplug port and information of a port to be plugged; wherein, the information of the misplug port comprises: the information of the misplugging PON port and the information of the network element where the misplugging PON port is located, the information of the port to be plugged comprises: the first network element information and the second PON port information.
Optionally, after the network manager determines the position of the second PON port of the first network element as the position of the port to be plugged, the method further includes: the network pipe marks the misplugging port and the pluggable port by using a second designated mark; wherein the second index is used for indicating that the optical fiber needs to be replaced for the misplugging port and the pluggable port.
Optionally, when the network manager determines that the branch optical fiber corresponding to the designated PON port is inserted incorrectly, the method further includes: the network manager generates a position to be accessed of an unauthenticated ONU corresponding to the appointed PON port according to the configuration information of the configured ONU corresponding to the second PON port; the network manager generates a fifth alarm message, wherein the fifth alarm message comprises: and appointing the branch optical fiber corresponding to the PON port to be inserted wrongly and appointing the position information which is required to be accessed by the unauthenticated ONU and corresponds to the PON port.
According to an embodiment of the present invention, there is provided an optical fiber position determining apparatus including: the device comprises an acquisition module, a control module and a control module, wherein the acquisition module is used for acquiring the specified information of an unauthenticated optical network unit ONU corresponding to a specified passive optical network PON port; the designated PON port is a PON port which is provided with unauthenticated ONUs below the PON port and configured ONUs below the PON port are not online or provided with unauthenticated ONUs below the PON port, and the number of the unauthenticated ONUs below the PON port is larger than a designated threshold value; wherein the designation information includes at least one of: registering identification information and geographical position identification information; the configured ONU is not used for indicating that the configured ONU is in a state of being incapable of forwarding the service; the matching module is used for matching the specified information of the unauthenticated ONU corresponding to the specified PON port with the specified information of the configured ONU corresponding to the preset PON ports respectively to obtain a matching result; and the determining module is used for determining the position of the inserted wrong optical fiber of the appointed PON port according to the matching result.
Optionally, in a case that the designated information includes the geographic location identification information, the plurality of PON ports are all PON ports within a geographic coverage range corresponding to the designated PON port; the geographical coverage range is a geographical range covered by a circle which takes the center point of an area formed by all the ONUs of the designated PON port as the center of a circle and takes the longest distance in the distances between the designated PON port and all the ONUs as the radius.
Optionally, the determining module is configured to determine that a trunk fiber corresponding to the designated PON port is inserted incorrectly when the number of matching pieces of the designation information of the unauthenticated ONU corresponding to the designated PON port and the designation information of the configured ONU corresponding to the first PON port in the plurality of PON ports exceeds a first predetermined threshold; and/or determining that the branch optical fiber corresponding to the specified PON port is inserted incorrectly when the number of the specified information of the unauthenticated ONU corresponding to the specified PON port matched with the specified information of the configured ONU corresponding to the first PON port in the plurality of PON ports is less than or equal to a first preset threshold value.
Optionally, the determining module is further configured to determine that the designated PON port is an erroneously-plugged PON port when it is determined that the trunk optical fiber corresponding to the designated PON port is erroneously plugged; determining the position of the first PON port as the position of the PON port to be inserted; the device still includes: the first alarm module is configured to generate a first alarm notification message, where the first alarm notification message includes: and specifying the main optical fiber corresponding to the PON port to be inserted by mistake, inserting PON port information by mistake and inserting the PON port information.
Optionally, the apparatus further comprises: the first marking module is used for marking the misplugging PON port and the corresponding plugging PON port by using a first designated mark; the first designated mark is used for indicating that the optical fiber needs to be replaced for the misplugging PON port and the corresponding PON port.
Optionally, the apparatus further comprises: the first generation module is used for generating a corresponding access position of an unauthenticated ONU corresponding to the specified PON port according to the configuration information of the configured ONU corresponding to the first PON port under the condition that the branch optical fiber corresponding to the specified PON port is determined to be inserted wrongly; a second warning module, configured to generate a second warning message, where the second warning message includes: and appointing the branch optical fiber corresponding to the PON port to be inserted wrongly and appointing the position information which is required to be accessed by the unauthenticated ONU and corresponds to the PON port.
Optionally, the determining module is further configured to, when the specifying information of the unauthenticated ONU corresponding to the specified PON port does not match with the specifying information of the configured ONU corresponding to any PON port in the multiple PON ports, generate a network element relationship table corresponding to a network element where the specified PON port is located according to the following information: specifying information specifying a PON port, an unauthenticated ONU corresponding to the specified PON port, and configured ONU-specifying information corresponding to the plurality of PON ports; the network element relation table is used for showing the corresponding relation between the PON port of the network element where the designated PON port is located and the designated information of the unauthenticated ONU; the network element relation table is used for comparing a network manager with a preset network element relation table corresponding to a plurality of network elements to determine the position of a wrong-insertion optical fiber of a specified PON port; the device still includes: and the sending module is used for sending a third warning message which is used for indicating that the specified information of the unauthenticated ONU corresponding to the specified PON port is not matched with the specified information of the configured ONU corresponding to any PON port in the plurality of PON ports to the network manager.
According to an embodiment of the present invention, there is provided a network element including: the processor is used for acquiring the specified information of the unauthenticated optical network unit ONU corresponding to the specified passive optical network PON port; matching the specified information of the unauthenticated ONU corresponding to the specified PON port with the specified information of the configured ONU corresponding to the preset PON ports respectively to obtain a matching result; determining the position of the wrong inserted optical fiber of the designated PON port according to the matching result; wherein, the designated PON port is a PON port which has unauthenticated ONUs below the PON port and configured ONUs below the PON port are not online or unauthenticated ONUs below the PON port and the number of the unauthenticated ONUs below the PON port is greater than a designated threshold value; the configured ONU is not used for indicating that the configured ONU is in a state of being incapable of forwarding the service; wherein the designation information includes at least one of: registering identification information and geographical position identification information; a memory coupled to the processor.
Optionally, in a case that the designated information includes the geographic location identification information, the plurality of PON ports are all PON ports within a geographic coverage range corresponding to the designated PON port; the geographical coverage range is a geographical range covered by a circle which takes the center point of an area formed by all the ONUs of the designated PON port as the center of a circle and takes the longest distance in the distances between the designated PON port and all the ONUs as the radius.
Optionally, the processor is configured to determine that a trunk fiber corresponding to the designated PON port is inserted incorrectly when the number of matching pieces of designation information of an unauthenticated ONU corresponding to the designated PON port and designation information of a configured ONU corresponding to a first PON port of the plurality of PON ports exceeds a first predetermined threshold; and/or determining that the branch optical fiber corresponding to the specified PON port is inserted incorrectly when the number of the specified information of the unauthenticated ONU corresponding to the specified PON port matched with the specified information of the configured ONU corresponding to the first PON port in the plurality of PON ports is less than or equal to a first preset threshold value.
Optionally, the processor is further configured to determine that the designated PON port is an erroneously-plugged PON port when it is determined that the trunk optical fiber corresponding to the designated PON port is erroneously plugged; determining the position of the first PON port as the position of the PON port to be inserted; and generating a first alarm notification message, wherein the first alarm notification message comprises: and specifying the main optical fiber corresponding to the PON port to be inserted by mistake, inserting PON port information by mistake and inserting the PON port information.
Optionally, the processor is further configured to mark the misplugged PON port and the pluggable PON port with a first designated mark; the first designated mark is used for indicating that the optical fiber needs to be replaced for the misplugging PON port and the corresponding PON port.
Optionally, the processor is configured to, when it is determined that a branch optical fiber corresponding to the designated PON port is inserted incorrectly, generate, according to configuration information of a configured ONU corresponding to the first PON port, an access-required position of an unauthenticated ONU corresponding to the designated PON port; and generating a second warning message, wherein the second warning message comprises: and appointing the branch optical fiber corresponding to the PON port to be inserted wrongly and appointing the position information which is required to be accessed by the unauthenticated ONU and corresponds to the PON port.
Optionally, the processor is further configured to, when the specification information of the unauthenticated ONU corresponding to the specified PON port does not match the specification information of the configured ONU corresponding to any PON port of the multiple PON ports, generate a network element relationship table corresponding to a network element where the specified PON port is located according to the following information: specifying information specifying a PON port, an unauthenticated ONU corresponding to the specified PON port, and specifying information specifying a plurality of PON ports and configured ONUs corresponding to the plurality of PON ports; sending a third alarm message to the network manager, wherein the third alarm message is used for indicating that the specified information of the configured ONU corresponding to the specified PON port is not matched with the specified information of the configured ONU corresponding to any PON port in the plurality of PON ports; the network element relation table is used for showing the corresponding relation between the PON port of the network element where the designated PON port is located and the designated information of the unauthenticated ONU; the network element relation table is used for comparing the network management with a preset network element relation table corresponding to a plurality of network elements to determine the position of the inserted wrong optical fiber of the designated PON port.
According to yet another embodiment of the present invention, there is also provided a storage medium including a stored program, wherein the program performs any one of the above methods when executed.
According to yet another embodiment of the present invention, there is also provided a processor for executing a program, wherein the program executes to perform the method of any one of the above.
According to the invention, the specified information of the unauthenticated optical network unit ONU corresponding to the specified PON port which is determined to have the unauthenticated ONU and the configured ONU which is not online or have the unauthenticated ONU and the number of the unauthenticated ONU is larger than the specified threshold value is matched with the specified information of the configured ONU corresponding to the preset PON ports, and the position of the inserted optical fiber is determined according to the matching result, so that the position of the inserted optical fiber can be determined even if a large number of optical fibers exist, therefore, the problem that the position of the inserted optical fiber cannot be determined in an xPON network in the related technology can be solved, and the optical fiber can be rapidly positioned and recovered.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
fig. 1 is a schematic diagram of a networking system in the related art;
FIG. 2 is a flow chart of a method of optical fiber position determination according to an embodiment of the present invention;
fig. 3 is a flowchart of xPON registration authentication provided in accordance with a preferred embodiment of the present invention;
FIG. 4 is a flow chart of the completion of the method provided in accordance with the preferred embodiment of the present invention;
fig. 5 is a flowchart of the process of step S403 provided in accordance with a preferred embodiment of the present invention;
FIG. 6 is a process flow diagram of step S404 of a method provided in accordance with a preferred embodiment of the present invention;
fig. 7 is a process flow diagram of step S405 of the method provided in accordance with the preferred embodiment of the present invention;
FIG. 8 is a block diagram of a fiber position determining device according to an embodiment of the present invention;
fig. 9 is a block diagram of a network element according to an embodiment of the present invention.
Detailed Description
The invention will be described in detail hereinafter with reference to the accompanying drawings in conjunction with embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.
Example 1
In the present embodiment, an optical fiber position determining method is provided, and fig. 2 is a flowchart of an optical fiber position determining method according to an embodiment of the present invention, as shown in fig. 2, the flowchart includes the following steps:
step S202, acquiring the appointed information of the unauthenticated optical network unit ONU corresponding to the appointed passive optical network PON port; wherein, the designated PON port is a PON port which has unauthenticated ONUs below the PON port and configured ONUs below the PON port are not online or unauthenticated ONUs below the PON port and the number of the unauthenticated ONUs below the PON port is greater than a designated threshold value; wherein the designation information includes at least one of: registering identification information and geographical position identification information; the configured ONU is not used for indicating that the configured ONU is in a state of being incapable of forwarding the service;
step S204, the appointed information of the unauthenticated ONU corresponding to the appointed PON port is respectively matched with the appointed information of the configured ONU corresponding to the preset PON ports to obtain a matching result;
and step S206, determining the position of the optical fiber inserted by mistake of the designated PON port according to the matching result.
Through the steps, the specified information of the unauthenticated optical network unit ONU which is determined to have the unauthenticated ONU and the configured ONU which are not online or have the unauthenticated ONU and the number of the unauthenticated ONU is larger than the specified threshold value is matched with the specified information of the configured ONU which is respectively corresponding to the preset PON ports, and the position of the inserted optical fiber is determined according to the matching result, so that the position of the inserted optical fiber can be determined even if a large number of optical fibers exist, therefore, the problem that the position of the inserted optical fiber cannot be determined in the xPON network in the related technology can be solved, and the optical fiber can be rapidly positioned and recovered.
Note that, the designated PON port may also be referred to as an alarm PON port, and before the step S202, the method may further include: and detecting the states of a plurality of PON ports, and determining the PON port as an alarm PON port, namely the specified PON port when detecting that an unauthenticated ONU exists under the PON port and configured ONUs under the PON port are not on line or an unauthenticated ONU exists under the PON port and the number of the unauthenticated ONUs under the PON port is greater than a specified threshold value.
It should be noted that the unauthenticated ONU, that is, the ONU in the unauthenticated state, and the ONU in the unauthenticated state cannot forward data, and the ONU needs to be authenticated before data forwarding is performed.
The configured ONU is an ONU already configured with identity information, but is not limited to this.
The designation information of the configured ONUs corresponding to the preset plurality of PON ports is expressed as a table in which the designation information of the configured ONUs under the PON port is associated with each of the plurality of PON ports, but the present invention is not limited thereto.
When the designation information includes the geographical location identification information, the plurality of PON ports are all PON ports within a geographical coverage area corresponding to the designated PON port; the geographical coverage range is a geographical range covered by a circle which takes the center point of an area formed by all the ONUs of the designated PON port as the center of a circle and takes the longest distance in the distances between the designated PON port and all the ONUs as the radius.
In an embodiment of the present invention, the step S206 may be represented as: determining that a trunk fiber corresponding to the designated PON port is inserted incorrectly when the number of the designated information of the unauthenticated ONU corresponding to the designated PON port and the designated information of the configured ONU corresponding to the first PON port in the plurality of PON ports exceeds a first preset threshold value; and determining that the branch optical fiber corresponding to the specified PON port is inserted incorrectly when the number of the specified information of the unauthenticated ONU corresponding to the specified PON port is matched with the specified information of the configured ONU corresponding to the first PON port in the plurality of PON ports is less than or equal to a first preset threshold value.
In addition, when it is determined that the trunk fiber corresponding to the designated PON port is inserted incorrectly, the method may further include: determining a designated PON port as a misplugging PON port; determining the position of the first PON port as the position of the PON port to be inserted; generating a first alarm notification message, wherein the first alarm notification message comprises: and specifying the main optical fiber corresponding to the PON port to be inserted by mistake, inserting PON port information by mistake and inserting the PON port information.
After determining the position of the first PON port as the position to be inserted into the PON port, the method may further include: marking a misplugging PON port and an insertible PON port by using a first designated mark; the first designated mark is used for indicating that the optical fiber needs to be replaced for the misplugging PON port and the corresponding PON port.
In addition, when it is determined that the branch optical fiber corresponding to the designated PON port is inserted incorrectly, the method may further include: generating a position to be accessed of an unauthenticated ONU corresponding to a designated PON port according to configuration information of a configured ONU corresponding to a first PON port; generating a second warning message, wherein the second warning message comprises: and appointing the branch optical fiber corresponding to the PON port to be inserted wrongly and appointing the position information which is required to be accessed by the unauthenticated ONU and corresponds to the PON port.
In an embodiment of the present invention, the step S206 may further be represented as: under the condition that the specified information of the unauthenticated ONU corresponding to the specified PON port is not matched with the specified information of the configured ONU corresponding to any PON port in the plurality of PON ports, generating a network element relation table corresponding to the network element where the specified PON port is located according to the following information: specifying information specifying a PON port, an unauthenticated ONU corresponding to the specified PON port, and specifying information specifying a plurality of PON ports and configured ONUs corresponding to the plurality of PON ports; the network element relation table is used for showing the corresponding relation between the PON port of the network element where the designated PON port is located and the designated information of the unauthenticated ONU; and sending a third alarm message for indicating that the specified information for configuring the ONU corresponding to the specified PON port is not matched with the specified information of the configured ONU corresponding to any PON port in the plurality of PON ports to the network manager.
It should be noted that the main body of the above steps may be a network element, such as an OLT, but is not limited thereto.
It should be noted that, after sending, to the network manager, a third alarm message for indicating that the designation information for configuring the ONU corresponding to the designated PON port is not matched with the designation information of the configured ONU corresponding to any PON port in the plurality of PON ports, the method may further include: the network management obtains a network element relation table; the network manager compares the network element relation table with a preset network element relation table corresponding to a plurality of network elements to obtain a comparison result; and the network manager determines the position of the wrong inserted optical fiber of the designated PON port according to the comparison result.
It should be noted that, the network manager determines, according to the comparison result, the position of the optical fiber inserted incorrectly at the designated PON port as follows: under the condition that the matching quantity of the specified information of the unauthenticated ONU corresponding to the specified PON port and the specified information of the configured ONU corresponding to the second PON port of the first network element in the plurality of network elements exceeds a second preset threshold value, the network manager determines that the trunk optical fiber corresponding to the specified PON port is inserted wrongly; and under the condition that the matching quantity of the specified information of the unauthenticated ONU corresponding to the specified PON port and the specified information of the configured ONU corresponding to the second PON port of the first network element in the plurality of network elements is less than or equal to a second preset threshold value, the network manager determines that the branch optical fiber corresponding to the specified PON port is inserted wrongly.
It should be noted that, in the case that the network manager determines that the trunk optical fiber corresponding to the designated PON port is inserted incorrectly, the method may further include: the network management determines that the designated PON port is a misplugging PON port; the network manager determines the position of a second PON port of the first network element as the position of the port to be plugged; the network manager generates a fourth alarm notification message, wherein the fourth alarm notification message includes: the method comprises the steps of specifying a trunk optical fiber misplug corresponding to a PON port, information of a misplug port and information of a port to be plugged; wherein, the information of the misplug port comprises: the information of the misplugging PON port and the information of the network element where the misplugging PON port is located, the information of the port to be plugged comprises: the first network element information and the second PON port information.
It should be noted that, after the network manager determines the position of the second PON port of the first network element as the position of the port to be inserted, the method may further include: the network pipe marks the misplugging port and the pluggable port by using a second designated mark; wherein the second index is used for indicating that the optical fiber needs to be replaced for the misplugging port and the pluggable port.
It should be noted that, in the case that the network manager determines that the branch optical fiber corresponding to the designated PON port is inserted incorrectly, the method may further include: the network manager generates a position to be accessed of an unauthenticated ONU corresponding to the appointed PON port according to the configuration information of the configured ONU corresponding to the second PON port; the network manager generates a fifth alarm message, wherein the fifth alarm message comprises: and appointing the branch optical fiber corresponding to the PON port to be inserted wrongly and appointing the position information which is required to be accessed by the unauthenticated ONU and corresponds to the PON port.
For a better understanding of the embodiments of the present invention, the present invention is further explained below with reference to preferred embodiments.
The preferred embodiment of the invention provides a method for realizing optical fiber management and rapid positioning recovery of an xPON system ODN (optical line terminal) in order to solve the problem that optical fiber positioning management is difficult, especially positioning recovery is difficult under the condition of wrong insertion, in the scene of mass optical fiber connection between an OLT (optical line terminal) and an ONU (optical network unit) of the conventional xPON ODN. The management, positioning and fast recovery method is consistent for a system which performs registration authentication between local side equipment (such as OLT) and user terminal equipment (such as ONU/ONT) through basic registration authentication identification information (including but not limited to mac address/LOID/LOID + PW of EPON/10GEPON system, SN/LOID/LOID + PW of GPON/XG EPON system and other similar basic registration authentication identification information) to realize terminal access validity control and service forwarding or other point-to-multipoint (P2MP) working mechanisms adopting similar management authentication methods.
In an xPON and related networks, the preferred embodiment of the present invention provides that, in a PON port as a unit, an OLT device generates and maintains an ONU configuration identification information table under the PON port, compares, according to actual state information of the ONU under the PON port (registration authentication information reported by the ONU), ONU configuration information stored by the OLT and ONU configuration information actually reported by the PON port, determines, by a certain policy, a comparison result with the PON port as a unit, analyzes whether a fault exists and a fault range is a trunk fiber or a branch fiber, and gives an actual correct port position. Meanwhile, according to a certain strategy, the access of ONU registration identification information under the condition of optical fiber misplugging can be realized, so that the method for rapidly positioning and recovering the optical fiber misplugging of the ODN network in the xPON system is realized.
The preferred embodiment of the invention provides a method for fast positioning and recovering an ODN network optical fiber insertion error in an xPON system, which comprises the following steps:
the first step is as follows: reading ONU configuration information by taking a PON port as a unit, storing and maintaining a relation table 1(ONU configuration information-actual state-PON port relation corresponding table) of the configuration information of all ONUs and corresponding PON ports; automatically or artificially triggering to actively check the state of the PON port according to a certain strategy (including the optical path alarm change of the PON port and the optical link performance statistic change of the PON port), and reading the actual state of the ONU: the method comprises the steps of including the actual state of a configured ONU and the actual state of an unauthenticated ONU; acquiring and maintaining a relation table 2(ONU configuration information-actual state PON port-network element relation corresponding table) of all configuration information of the managed network elements and corresponding PON ports through a network management or operation and maintenance platform;
the second step is that: in the query of the actual state of the PON port, when an unauthenticated ONU exists under the PON port and configured ONUs under the PON port are not online or unauthenticated ONUs exist under the PON port and the number of unauthenticated ONUs under the PON port is greater than a specified threshold value, the PON port is marked as a specific alarm PON port (equivalent to the specified PON port). Initiating a registration process for all the unauthenticated ONUs in a unit of a specific alarm PON port according to a certain strategy, and acquiring or updating registration identification information (including but not limited to MAC addresses, LOID/LOID + PW in an E/10GEPON ONU system, SN, LOID/LOID + PW in a GPON ONU system, and other software information (including but not limited to the geographic position information of the ONUs) capable of marking the ONU information) of the unauthenticated ONUs.
The third step: a network element acquires and alarms a PON port (equivalent to the designated PON port), and the unauthenticated ONU registration identification information is compared with a relation table 1(ONU configuration information-actual state-PON port relation corresponding table), the unauthenticated ONU registration identification information of the designated PON port is searched by taking the PON port as a unit, a matching threshold value 1 (equivalent to the first preset threshold value) is set at the same time, and the matching threshold value 1 is assigned according to a certain rule (the rule includes but is not limited to: dynamically acquiring the total number of all the unauthenticated ONUs under the PON port by taking the PON port as a unit, and rounding after calculation according to a certain ratio), and can be manually modified; the third step specifically comprises:
3.1) when the registration identification information of the unauthenticated ONU at the specified PON port is matched with the registration identification information of the ONU configuration information at the specific PON port (equivalent to the first PON port) in the relation table 1, and the number of the matched ONUs exceeds a threshold value 1, the trunk optical fiber is considered to be inserted wrongly. Generating an actual PON port to be inserted position (including a PON port) specifying an unauthenticated ONU according to the ONU configuration information stored in the relationship table 1, where the actual PON port to be inserted is the specific PON port in the relationship table 1; and marking the specific alarm PON port as the misplug PON port. The network element generates an alarm notification 1 (corresponding to the first alarm message) including, but not limited to, an alarm name (e.g., trunk fiber misplugging), misplugging of a PON port, and plugging of a PON port. Meanwhile, the network element software guides the field to replace the optical fiber by specially lighting (lighting in different and service states) the PON port of the designated PON port (mistakenly plugging the PON port and plugging the PON port).
3.2) when the registration identification information of the unauthenticated ONU at the specified PON port is matched with the registration identification information of the ONU configuration information at the specific PON port (equivalent to the first PON port) in the relation table 1, but the number of the matched ONUs is lower than the threshold value 1, the branch optical fiber is considered to be inserted wrongly. According to the ONU configuration information stored in the relation table 1, an access position of an unauthenticated ONU at a specified PON port is generated, and the network element generates and reports an alarm notification 2 (corresponding to the second alarm message) (including but not limited to an alarm name (e.g., a branch optical fiber is erroneously inserted) and information of an erroneously inserted ONU (including but not limited to an erroneously inserted PON port and an intentionally inserted PON port)).
3.3) when the non-authenticated ONU registration identification information of the specified PON port is not matched with the registration identification information of the ONU configuration information under the specific PON port in the relation table 1, generating a corresponding network element error relation table 3 (including but not limited to ONU registration identification information, PON port and network element information) according to the corresponding relation between the non-matched ONU registration information and the PON port where the non-matched ONU registration information is located. The network element maintains or updates the table automatically or manually according to the policy defined in (1). The network element generates and reports an alarm notification 3 (corresponding to the third alarm message) (e.g., the PON port ONU registration information does not match).
The fourth step: after receiving the network element specific alarm notification message 3, the network manager obtains a relationship table 3 stored and maintained by the network element (including without limitation that no ONU registration identification information is registered at a PON port corresponding to the network element), and compares all network element configuration information stored and maintained by the network manager with a relationship table 2 corresponding to the PON port (ONU configuration information-actual state-PON port-network element relationship correspondence table). Searching the registered identification information of the unauthorized ONU of the appointed PON port by taking the PON port as a unit, and simultaneously setting a matching threshold value 2 (which is equivalent to the second preset threshold value), wherein the matching threshold value 2 can be assigned according to a certain rule (the rule comprises but is not limited to dynamically acquiring the total number of all the unauthorized ONUs under the PON port by taking the PON port as a unit, and calculating according to a certain ratio and then rounding, the matching threshold value 1 is the same as the matching threshold value 2 in a default mode), and can be modified manually, and the fourth step specifically comprises the following steps:
4.1) when the registration identification information of the unauthenticated ONU at the specified PON port is matched with the registration identification information of the ONU configuration information at the specific PON port (corresponding to the second PON port) in the relation table 2, and the number of the matched ONUs exceeds a threshold value 2, the main optical fiber is considered to be inserted wrongly. Generating the actual port-to-be-plugged position (network element + PON port) of the specified unauthenticated ONU (including the network element and the PON port) according to the ONU configuration information stored in the relation table 2, wherein the actual port-to-be-plugged is a specific port (network element + PON port) in the relation table 2; and marking the specific alarm PON port as the misplug PON port. And generates an alarm 1 (corresponding to the fourth predetermined threshold) including, but not limited to, alarm names (e.g., trunk fiber misplugging), misplugging ports (net element + PON port), and due-to-plug ports (net element + PON port). Meanwhile, the network management informs the network element software to guide the field replacement of the optical fiber by special lighting (lighting in different and service states) of the PON port of the specified port (the misplugging port and the to-be-plugged port).
4.2) when the registration identification information of the unauthenticated ONU at the specified PON port is matched with the registration identification information of the ONU configuration information under the specific PON port in the relationship table 2, but the number of the matched ONUs is lower than the threshold 2, it is determined that the branch optical fiber is erroneously inserted, and the access position of the unauthenticated ONU at the specified port (network element + PON port) is generated according to the ONU configuration information stored in the relationship table 2, and the network element generates and reports an alarm 2 (equivalent to the fifth predetermined threshold) (including but not limited to: alarm name (e.g., supporting optical fiber misplugging), misplugging ONU information (including, but not limited to, misplugging network element interface, and network element port to be plugged).
4.3) when the un-authenticated ONU registration identification information of the specified PON port is not matched with the registration identification information of the ONU configuration information under the specific PON port in the relation table completely, generating a network management error relation table 3 (including but not limited to ONU registration identification information, PON port and network element information) according to the corresponding relation between the un-matched ONU registration information and the PON port under all network elements governed by the network management. The network management error relation table 3 is a complete set of the network element error relation table 3; the network element error relation table 3 is a subset of the network management error relation table 3. The network element maintains or updates the table automatically or manually according to the policy defined in (1). An alarm notification 3 is generated (e.g., the PON port ONU registration information does not match).
The fifth step: according to a certain policy, a service restoration rule is manually formulated for the OLT configuration data in the corresponding logical range (the alarm 1 is a PON port, and the alarm 2/3 is an ONU) of the reported alarm notification 1/2/3, and the fifth step specifically includes:
5.1) configuration data priority: when the reported data under the PON port is inconsistent with the OLT configuration data, taking the OLT configuration data as a standard, simultaneously generating an alarm notification according to the comparison result in the steps (3) and (4), optionally generating a work order on a third-party operation and maintenance platform, and guiding subsequent manual change of trunk or branch optical fibers by a certain method (for example, network element software guides field replacement of optical fibers by special lighting (different and service state lighting) of the PON port of a specified PON port (wrongly plugged into the PON port or a PON port to be plugged into the PON port) until ONU registration identification data reported by the PON port actually is consistent with OLT configuration ONU registration information;
5.2) reporting information preferentially: when the data reported by the PON port is inconsistent with the OLT configuration data, the ONU registration identification actually reported by the PON port is taken as the standard. The OLT applies for temporary resources according to a certain method, and stores the original configuration ONU registration data and the related ONU service data of the corresponding PON port. Clearing the ONU registration information and the relevant service data configured under the current PON port, and migrating the relevant data (including the registration data, the service data and the like) in the corresponding (to-be-plugged) ports in the relation tables 2 and 3 to the current PON port in a certain method according to the ONU registration information actually reported under the PON port. And storing ONU registration information configured by the PON port in the temporary resource and processing according to whether the registration information accords with the actual PON port report information under the OLT or the network management. And if the information is consistent, transferring the configuration information stored in the temporary resource to the corresponding PON port. If no corresponding data exists and the same network element has the idle PON port resource, the same network element is migrated to the idle port under the same network element; if no conforming data exists and no idle PON port resource exists in the same network element, the use of the reported information priority rule is forbidden;
and 5.3) the priority of the configuration data can be artificially modified and the application range of the reported information at different PON ports is preferred.
And a sixth step: when the optical path state of the designated PON port (original PON port/misplugging PON port) or the registration state of the unauthenticated ONU changes, and when the unauthenticated ONU in the misplugging port is in a non-unauthenticated state under the PON port to be plugged, the alarm 1/2 (trunk/branch optical fiber misplugging) is recovered, and the misplugging PON port mark is cleared. And meanwhile, updating and maintaining an OLT relation table.
In addition to the above solutions, the preferred embodiment of the present invention may also apply other software information that can uniquely identify the ONU as a judgment basis. Such as the geographical location identifier reported by the ONU. The OLT PON port configures the ONU information list and includes the geographical location information of the configured ONU, that is, the OLT PON port includes the geographical information of the configured ONU. And the network manager maintains the geographic information of all PON ports.
In the above second step, in addition to the basic processing step: when the PON port finds the unauthenticated ONU, the geographical position information of the ONU is simultaneously acquired through software setting besides the registration authentication information of the ONU (including but not limited to directly extracting the geographical position information of the ONU at the registration incomplete stage, or after the ONU finishes registration and acquires necessary software information such as the geographical position information of the relevant ONU, the relevant ONU is unregistered and is in an unregistered state). And measuring the distances of all the unauthenticated ONUs under the PON port, and confirming the possible geographical coverage range by taking the longest distance as the radius and the central point of the geographical position information of all the ONUs as the center of a circle.
In the third step, except the basic processing step, all PON ports under the network element or the network management are compared according to the possible geographic coverage, all PON ports in the possible geographic coverage are obtained, the ONU information configured under these PON ports is compared with the unregistered ONU information (the information includes, but is not limited to, MAC address, LOID/LOID + PW in E/10GEPON ONU system, SN, LOID/LOID + PW in GPON ONU system, and other software information (including, but is not limited to, the geographic location information of ONU, etc.) that can mark the ONU information), and the matching condition is determined. And then processing according to the fourth step to the sixth step.
By adopting the method provided by the preferred embodiment of the invention, the registration identification information table of the ONU under the OLT is generated and maintained through a certain rule, the comparison between the actual information of the ONU under the PON port and the configuration information on the OLT is realized by taking the PON as a unit, and the interpretation of the connection relationship between the OLT and the ONU is realized according to a certain strategy. Therefore, in the xPON application, the legality of the ODN optical fiber between the OLT and the ONU is judged, positioned and recovered through the interaction of basic registration authentication identification information of the OLT and the ONU, the defects that in the conventional mode, massive optical fiber positioning management and fault recovery are difficult, low in efficiency and easy to interfere between a local side and terminal equipment in an xPON network and a system adopting a similar mechanism are overcome, the ODN optical fiber management and fault positioning recovery efficiency in the xPON network is improved, and meanwhile, a standard communication protocol based on the xPON system is adopted as an ODN optical fiber management positioning identification, so that an efficient and convenient method is provided for opening, management and maintenance, and the method has good expansibility.
Fig. 3 is a flowchart of xPON registration authentication according to a preferred embodiment of the present invention, which takes registration authentication in the MAC address mode of an EPON system as an example, and other systems are similar.
The EPON system defines an MAC control mechanism of the point-to-multipoint optical network by adopting a multipoint control protocol (MPCP), and completes automatic discovery and registration of the ONU, clock synchronization of the ONU and dynamic ranging in an automatic discovery mode through the operation of the MPCP; and monitoring the registration state of the ONU and dynamic bandwidth allocation of the ONU are completed in a common working mode.
The MPCP protocol defines 5 protocol frames for the management operation of the PON network: 1) grant frame (GATE): sending an authorized time slice to the ONU in an initialization and common working mode, and transmitting data by the ONU according to the allocated time slice; 2) REPORT frame (REPORT): the ONU reports the state of the ONU and the request to the OLT; 3) registration request frame (REGISTER _ REQ): the ONU sends a registration request to the OLT; 4) registration frame (REGISTER): REGISTER _ REQ message for OLT to respond to ONU; 5) registration response frame (REGISTER _ ACK): the ONU sends an indication to the OLT to end the entire registration process. The authorization frame and the three registration frames are used in the auto-discovery mode, while in the normal mode, only the interaction between the authorization frame and the report frame is included.
MPCP by default does not allow ONU transmission, i.e. the ONU cannot forward any data (nor turn on the laser) before getting the OLT's authorization. MPCP detects a newly connected ONU through auto-discovery mode.
Step 1: the OLT starts an auto-discovery mode and allocates a discovery window, sends a discovery Grant (GATE) message in a broadcast manner, and announces the start time and length of a discovery slot.
Step 2: and the uninitialized ONU responds to the discovery GATE message to complete the clock synchronization of the OLT and the ONU. After the ONU local clock reaches the discovery time slot, the ONU sends a REGISTER _ REQ message after random delay, and the message comprises the source MAC address of the ONU and the ONU local clock label representing the sending time. The OLT supports the capability of authenticating the validity of the ONU based on the MAC address of the ONU, and the access of the illegal ONU should be refused.
And step 3: after the OLT analyzes and confirms the REGISTER _ REQ message, the OLT transmits the REGISTER message to the ONU which is being initialized by using the MAC address of the ONU. The message contains a Logical Link Identification (LLID) assigned by the OLT to uniquely identify the ONU.
And 4, step 4: the OLT allocates upstream bandwidth to the ONU by means of a Logical Link Identification (LLID) that uniquely identifies the ONU.
And 5: after receiving the REGISTER and normal GATE messages, the ONU sends a REGISTER _ ACK message in the assigned grant slot to inform the OLT that it has successfully parsed the REGISTER message. The whole automatic discovery process is completed.
Through the five steps, and after the standard OAM and the extended OAM are found and negotiated successfully, the ONU adopting the MAC address as a registration authentication object mode can enter a normal working state. If the LOID authentication mode specified by the EPON system is adopted, the following authentication steps need to be further completed:
step 6: the OLT initiates authentication of the ONU by sending an Auth _ Request message to the ONU.
And 7: the ONU receives the message and sends an Auth _ Response message to the OLT, which contains its logical identification (LOID and Password).
And 8: and the OLT verifies the legality and correctness of the logic identification of the ONU. If the verification passes, an Auth _ Suprocess message is sent to the ONU and the authentication state of the ONU is switched to an "authorized" state.
And step 9: and if the ONU fails in authentication, the OLT sends an Auth _ Failure message to the ONU and keeps the ONU in an unauthorized state.
Referring to fig. 1, a schematic diagram of the system provided by the preferred embodiment of the present invention also includes an EMS100, an OLT200, an ODN300, and an ONU400, wherein,
EMS100, which is used to configure, manage and maintain OLT200 and the EPON network; the EMS network manager maintains and manages the history information of the OLT200 and the ONU400 and related alarm and notification messages. And the specific abnormal information can be judged and positioned according to the related alarm and notification message.
The OLT200 is configured to periodically start a discovery process of the ONU, allocate a link identifier (e.g., LLID (EPON system)/ONU ID (GPON system)) to the ONU400, and receive and determine whether basic registration authentication information reported by the ONU in the discovery process is consistent with OLT local configuration storage information. If the reported information is consistent with the configuration storage information, the registration and authentication of the ONU400 on the OLT200 are completed, a corresponding uplink time slot is allocated to the ONU400, and the ONU400 uploads data in the time slot allocated to the OLT200 by configuration; otherwise, the ONU400 registers the authentication failure on the OLT200 and is not allowed to forward any general service data except for the protocol interaction.
The ODN300 is configured to connect the ONUs 400 with different numbers under the OLT200, serve as a direct physical connection channel between the OLT200 and the ONUs 400, and are formed by combining multiple optical fibers (one or two (mutually protected) trunk optical fibers and multiple branch optical fibers) and other related physical optical devices in units of PON ports;
the ONU400 is configured to assume a role of a terminal device of a home user, receive management of the OLT200, report registration authentication identification information of the ONU itself in a process of retrying an online process caused by a new power-on of the ONU or a power-off reason, and respond to an instruction of the OLT. And receiving ONU identification (such as LLID (EPON system)/ONU ID (GPON system) and the like) allocated by the OLT under the control of the OLT, finishing registration authentication reception and forwarding data according to a time slot allocated by the OLT. When the basic registration authentication information reported by the ONU is inconsistent with the locally stored data of the OLT, the ONU receives the control of the OLT, responds again in the registration period allowed by the OLT and reports the registration authentication identification information of the ONU.
Fig. 4 is a flow chart of the method provided in accordance with the preferred embodiment of the present invention, as shown in fig. 4, including the following steps:
s401: reading ONU configuration information by taking a PON port as a unit, storing and maintaining a relation table 1(ONU configuration information-actual state-PON port relation corresponding table) of the configuration information of all ONUs and corresponding PON ports; automatically or artificially triggering to actively check the state of the PON port according to a certain strategy (including the optical path alarm change of the PON port and the optical link performance statistic change of the PON port), and reading the actual state of the ONU: the method comprises the steps of including the actual state of a configured ONU and the actual state of an unauthenticated ONU; acquiring and maintaining a relation table 2(ONU configuration information-actual state PON port-network element relation corresponding table) of all configuration information of the managed network elements and corresponding PON ports through a network management or operation and maintenance platform;
s402: in the actual state query of the PON port, when an unauthenticated ONU exists under the PON port and configured ONUs under the PON port are not online or unauthenticated ONUs exist under the PON port and the number of the unauthenticated ONUs under the PON port is larger than a specified threshold value, the PON port is marked as a specific alarm PON port. Initiating a registration process for all the unauthenticated ONUs in a unit of a specific alarm PON port according to a certain strategy, and acquiring or updating registration identification information (including but not limited to MAC addresses, LOID/LOID + PW in an E/10GEPON ONU system, SN, LOID/LOID + PW in a GPON ONU system and other software information (including but not limited to the geographic position information of the ONUs) capable of marking the ONU information) of the unauthenticated ONUs.
S403: the network element acquires and alarms the PON port unauthenticated ONU registration identification information to be compared with a relation table 1(ONU configuration information-actual state-PON port relation corresponding table), the PON port is used as a unit to search the specified PON port unauthenticated ONU registration identification information, a matching threshold value 1 is set at the same time, the matching threshold value 1 is assigned according to a certain rule (the rule includes but is not limited to dynamically acquiring the total number of all unauthenticated ONUs under the PON port by using the PON port as a unit, and the calculation is carried out according to a certain ratio and then is rounded), and the rules can be manually modified. And outputting a query result according to the threshold matching condition and providing related operation guidance.
S404: after receiving the network element specific alarm notification message 3, the network manager obtains a relationship table 3 stored and maintained by the network element (including without limitation that no ONU registration identification information is registered at a PON port corresponding to the network element), and compares all network element configuration information stored and maintained by the network manager with a relationship table 2 corresponding to the PON port (ONU configuration information-actual state-PON port-network element relationship correspondence table). The method comprises the steps of searching for the registration identification information of the unauthorized ONU of the appointed PON port by taking the PON port as a unit, setting a matching threshold value 2, assigning the matching threshold value 2 according to a certain rule (the rule comprises but is not limited to dynamically obtaining the total number of all the unauthorized ONUs under the PON port by taking the PON port as a unit, calculating according to a certain ratio, then rounding, and enabling the rule of the matching threshold value 1 and the rule of the matching threshold value 2 to be the same in default), and manually modifying. Outputting a query result according to the threshold matching condition, and providing related operation guidance;
s405: according to a certain strategy, a service recovery rule is made for OLT configuration data in a corresponding logic range (the alarm 1 is a PON port, the alarm 2/3 is an ONU) of the reported alarm notification 1/2/3 artificially, and the ONU is guided to complete registration authentication and service recovery;
s406: when the optical path state of the designated PON port (original PON port/misplugging PON port) or the registration state of the unauthenticated ONU changes, and when the unauthenticated ONU in the misplugging port is in a non-unauthenticated state under the PON port to be plugged, the alarm 1/2 (trunk/branch optical fiber misplugging) is recovered, and the misplugging PON port mark is cleared. And meanwhile, updating and maintaining an OLT relation table.
Fig. 5 is a flowchart of the processing of step S403 provided according to the preferred embodiment of the present invention, and as shown in fig. 5, includes the following steps:
s501: when the registration identification information of the unauthenticated ONU at the specified PON port is matched with the registration identification information of the ONU configuration information under the specific PON port in the relation table 1, and the number of the matched ONUs exceeds a threshold value 1, the main optical fiber is considered to be inserted wrongly. Generating an actual PON port to be inserted position (including a PON port) specifying an unauthenticated ONU according to the ONU configuration information stored in the relationship table 1, where the actual PON port to be inserted is the specific PON port in the relationship table 1; and marking the specific alarm PON port as the misplug PON port. The network element generates an alarm notification 1 (including, but not limited to, an alarm name (e.g., trunk fiber misplugging), a misplugging PON port, and an insertion-due PON port). Meanwhile, the network element software guides the field to replace the optical fiber by specially lighting (lighting in different and service states) the PON port of the designated PON port (mistakenly plugging the PON port and plugging the PON port).
S502: when the registration identification information of the unauthenticated ONU at the specified PON port is matched with the registration identification information of the ONU configuration information under the specific PON port in the relation table 1, but the number of the matched ONUs is lower than the threshold value 1, the branch optical fiber is considered to be inserted wrongly. According to the ONU configuration information stored in the relation table 1, an access position of an unauthenticated ONU at a specified PON port is generated, and the network element generates and reports an alarm notification 2 (including but not limited to an alarm name (e.g. branch optical fiber misplugging) and misplugging ONU information (including but not limited to misplugging a PON port and a PON port to be plugged)).
S503: when the un-authenticated ONU registration identification information at the designated PON port does not match the registration identification information of the ONU configuration information at the specific PON port in the relationship table 1, a corresponding network element error relationship table 3 (including but not limited to the ONU registration identification information, the PON port, and the network element information) is generated according to the corresponding relationship between the un-authenticated ONU registration information and the PON port where the un-authenticated ONU registration identification information is located. The network element maintains or updates the table automatically or manually according to the policy defined in (1). The network element generates and reports an alarm notification 3 (for example, the registration information of the ONU at the PON port is not matched).
Fig. 6 is a process flow diagram of step S404 of the method provided in accordance with the preferred embodiment of the present invention, including the steps of:
s601: when the registration identification information of the unauthenticated ONU at the specified PON port is matched with the registration identification information of the ONU configuration information under the specific PON port in the relation table 2, and the number of the matched ONUs exceeds a threshold value 2, the main optical fiber is considered to be inserted wrongly. And generates the actual port position (network element + PON port) of the specified unauthenticated ONU (including network element and PON port) according to the ONU configuration information stored in the relation table 2. The actual port to be plugged is a specific port (network element + PON port) in the relationship table 2, and the specific alarm PON port is marked as a PON port that is plugged by mistake. And generates an alarm 1 (including but not limited to an alarm name (e.g., trunk fiber misplugging), a misplugging port (network element + PON port), and a pluggable port (network element + PON port)). Meanwhile, the network management informs the network element software to guide the field replacement of the optical fiber by special lighting (lighting in different and service states) of the PON port of the specified port (the misplugging port and the to-be-plugged port).
S602: when the registered identification information of the unauthorized ONU at the specified PON port is matched with the registered identification information of the ONU configuration information under the specific PON port in the relation table 2, but the number of the matched ONUs is lower than the threshold value 2, the branch optical fiber is considered to be inserted by mistake, the required access position of the unauthorized ONU at the specified port (the network element + the PON port) is generated according to the ONU configuration information stored in the relation table 2, and the network element generates and reports an alarm 2 (including but not limited to an alarm name (such as supporting optical fiber to be inserted by mistake) and the information of the inserted ONU by mistake (including but not limited to an inserted network element interface and an inserted network element port)).
S603: when the un-authenticated ONU registration identification information of the specified PON port is not matched with the registration identification information of the ONU configuration information under the specific PON port in the relation table completely, generating a network management error relation table 3 (including but not limited to the ONU registration identification information, the PON port and the network element information) according to the corresponding relation between the un-matched ONU registration information and the PON port under all the network elements governed by the network management. The network management error relation table 3 is a complete set of the network element error relation table 3; the network element error relation table 3 is a subset of the network management error relation table 3. The network element maintains or updates the table automatically or manually according to the policy defined in (1). An alarm notification 3 is generated (e.g., the PON port ONU registration information does not match).
Fig. 7 is a process flow diagram of step S405 of the method provided in accordance with the preferred embodiment of the present invention, including the steps of:
s701: configuration data prioritization: when the reported data under the PON port is inconsistent with the OLT configuration data, taking the OLT configuration data as a standard, simultaneously generating an alarm notification according to the comparison result in the steps (3) and (4), optionally generating a work order on a third-party operation and maintenance platform, and guiding subsequent manual change of trunk or branch optical fibers by a certain method (for example, network element software guides field replacement of optical fibers by special lighting (different and service state lighting) of the PON port of a specified PON port (wrongly plugged into the PON port or a PON port to be plugged into the PON port) until ONU registration identification data reported by the PON port actually is consistent with OLT configuration ONU registration information;
s702: the reported information is prior: when the data reported by the PON port is inconsistent with the OLT configuration data, the ONU registration identification actually reported by the PON port is taken as the standard. The OLT applies for temporary resources according to a certain method, and stores the original configuration ONU registration data and the related ONU service data of the corresponding PON port. Clearing the ONU registration information and the relevant service data configured under the current PON port, and migrating the relevant data (including the registration data, the service data and the like) in the corresponding (to-be-plugged) ports in the relation tables 2 and 3 to the current PON port in a certain method according to the ONU registration information actually reported under the PON port. And storing ONU registration information configured by the PON port in the temporary resource and processing according to whether the registration information accords with the actual PON port report information under the OLT or the network management. And if the information is consistent, transferring the configuration information stored in the temporary resource to the corresponding PON port. If no corresponding data exists and the same network element has the idle PON port resource, the same network element is migrated to the idle port under the same network element; if no conforming data exists and no idle PON port resource exists in the same network element, the use of the reported information priority rule is forbidden;
s703: the priority of the configuration data and the application range of the reported information at different PON ports can be modified manually.
It should be noted that, in addition to the above preferred embodiment, other software information that can uniquely identify the ONU can be applied as a judgment basis. Such as the geographical location identifier reported by the ONU. The OLT PON port configures the ONU information list and includes the geographical location information of the configured ONU, that is, the OLT PON port includes the geographical information of the configured ONU. And the network manager maintains the geographic information of all PON ports.
In the above S402, in addition to the basic processing step: when the PON port finds the unauthenticated ONU, the geographical position information of the ONU is simultaneously acquired through software setting besides the registration authentication information of the ONU (including but not limited to directly extracting the geographical position information of the ONU at the registration incomplete stage, or after the ONU finishes registration and acquires necessary software information such as the geographical position information of the relevant ONU, the relevant ONU is unregistered and is in an unregistered state). And measuring the distances of all the unauthenticated ONUs under the PON port, and confirming the possible geographical coverage range by taking the longest distance as the radius and the central point of the geographical position information of all the ONUs as the center of a circle.
In S403, except for the basic processing step, comparing the geographical information of all PON ports in the network element or the network management according to the possible geographical coverage, obtaining all PON ports in the possible geographical coverage, comparing the configured ONU information under these PON ports with the unregistered ONU information (information includes, but is not limited to, MAC address, LOID/LOID + PW in E/10GEPON ONU system, SN, LOID/LOID + PW in GPON ONU system, and other software information (including, but is not limited to, geographical location information of ONU), which can mark the ONU information), and determining the matching condition. Thereafter, processing proceeds according to S404 to S406.
Through the above description of the embodiments, those skilled in the art can clearly understand that the method according to the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but the former is a better implementation mode in many cases. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, or a network device) to execute the method according to the embodiments of the present invention.
Example 2
In this embodiment, an optical fiber position determining apparatus is further provided, and the apparatus is used to implement the foregoing embodiments and preferred embodiments, which have already been described and are not described again. As used below, the term "module" may be a combination of software and/or hardware that implements a predetermined function. Although the means described in the embodiments below are preferably implemented in software, an implementation in hardware, or a combination of software and hardware is also possible and contemplated.
Fig. 8 is a block diagram of a configuration of an optical fiber position determining apparatus according to an embodiment of the present invention, as shown in fig. 8, the apparatus including:
an obtaining module 82, configured to obtain specific information of an unauthenticated optical network unit ONU corresponding to a specific passive optical network PON port; the system comprises a PON port, a plurality of Optical Network Units (ONUs) and a plurality of optical network units (PON ports), wherein the PON port is provided with unauthenticated ONUs and configured ONUs below the PON port are not online or the PON port is provided with unauthenticated ONUs and the number of the unauthenticated ONUs below the PON port is greater than a specified threshold value; the configured ONU is not used for indicating that the configured ONU is in a state of being incapable of forwarding the service; wherein the designation information includes at least one of: registering identification information and geographical position identification information;
a matching module 84, connected to the obtaining module 82, configured to match the specific information of the unauthenticated ONU corresponding to the specified PON port with the specific information of the configured ONUs corresponding to the preset PON ports, respectively, so as to obtain a matching result;
and a determining module 86, connected to the matching module 84, for determining a position of a wrong-insertion optical fiber of the designated PON port according to a matching result.
Through the device, the specified information of the unauthenticated optical network unit ONU which is determined to have the unauthenticated ONU and the configured ONU which is not online or have the unauthenticated ONU and the number of the unauthenticated ONU is larger than the specified threshold value is matched with the specified information of the configured ONU which is respectively corresponding to the preset PON ports, and the position of the inserted optical fiber is determined according to the matching result, so that the position of the inserted optical fiber can be determined even if a large number of optical fibers exist, therefore, the problem that the position of the inserted optical fiber cannot be determined in an xPON network in the related technology can be solved, and the optical fiber can be rapidly positioned and recovered.
It should be noted that, when the specifying information includes the geographic location identification information, the plurality of PON ports are all PON ports within a geographic coverage range corresponding to the specified PON port; the geographical coverage range is a geographical range covered by a circle which takes the center point of an area formed by all the ONUs of the designated PON port as the center of a circle and takes the longest distance in the distances between the designated PON port and all the ONUs as the radius.
In an embodiment of the present invention, the determining module 86 is configured to determine that a trunk fiber corresponding to the designated PON port is inserted incorrectly when the number of the designated information of the unauthenticated ONU corresponding to the designated PON port matches the designated information of the configured ONU corresponding to the first PON port in the plurality of PON ports exceeds a first predetermined threshold; and/or determining that the branch optical fiber corresponding to the specified PON port is inserted incorrectly when the number of the specified information of the unauthenticated ONU corresponding to the specified PON port matched with the specified information of the configured ONU corresponding to the first PON port in the plurality of PON ports is less than or equal to a first preset threshold value.
It should be noted that the determining module 86 may be further configured to determine that the designated PON port is an erroneously-inserted PON port when it is determined that the trunk optical fiber corresponding to the designated PON port is erroneously inserted; determining the position of the first PON port as the position of the PON port to be inserted; the device still includes: the first alarm module is configured to generate a first alarm notification message, where the first alarm notification message includes: and specifying the main optical fiber corresponding to the PON port to be inserted by mistake, inserting PON port information by mistake and inserting the PON port information.
In an embodiment of the present invention, the apparatus may further include: a first marking module, connected to the determining module 86, for marking the mis-plugged PON port and the PON port to be plugged with a first designated mark; the first designated mark is used for indicating that the optical fiber needs to be replaced for the misplugging PON port and the corresponding PON port.
It should be noted that the above apparatus may further include: the first generation module is used for generating a corresponding access position of an unauthenticated ONU corresponding to the specified PON port according to the configuration information of the configured ONU corresponding to the first PON port under the condition that the branch optical fiber corresponding to the specified PON port is determined to be inserted wrongly; the second warning module is connected with the first generating module and used for generating a second warning message, wherein the second warning message comprises: and appointing the branch optical fiber corresponding to the PON port to be inserted wrongly and appointing the position information which is required to be accessed by the unauthenticated ONU and corresponds to the PON port.
It should be noted that, the determining module may be further configured to, when the specifying information of the unauthenticated ONU corresponding to the specified PON port does not match the specifying information of the configured ONU corresponding to any PON port in the multiple PON ports, generate a network element relationship table corresponding to a network element where the specified PON port is located according to the following information: specifying information specifying a PON port, an unauthenticated ONU corresponding to the specified PON port, and specifying information specifying a plurality of PON ports and configured ONUs corresponding to the plurality of PON ports; the network element relation table is used for showing the corresponding relation between the PON port of the network element where the designated PON port is located and the designated information of the unauthenticated ONU; the network element relation table is used for comparing a network manager with a preset network element relation table corresponding to a plurality of network elements to determine the position of a wrong-insertion optical fiber of a specified PON port; the device still includes: and the sending module is used for sending a third alarm message which is used for indicating that the specified information which is corresponding to the specified PON port and is used for configuring the ONU is not matched with the specified information of the configured ONU corresponding to any PON port in the plurality of PON ports to the network manager.
The network manager compares the network element relationship table with preset network element relationship tables corresponding to a plurality of network elements to determine the position of the inserted optical fiber of the designated PON port, referring to the explanation of embodiment 1.
It should be noted that the above-mentioned apparatus may be located in a network element, such as an OLT, but is not limited thereto.
It should be noted that, the above modules may be implemented by software or hardware, and for the latter, the following may be implemented, but not limited to: the modules are all positioned in the same processor; alternatively, the modules are respectively located in different processors in any combination.
Example 3
An embodiment of the present invention provides a network element, and fig. 9 is a block diagram of a structure of a network element provided according to an embodiment of the present invention, as shown in fig. 9, the network element includes:
a processor 92, configured to obtain specific information of an unauthenticated optical network unit ONU corresponding to a specific passive optical network PON port; matching the specified information of the unauthenticated ONU corresponding to the specified PON port with the specified information of the configured ONU corresponding to the preset PON ports respectively to obtain a matching result; determining the position of the wrong inserted optical fiber of the designated PON port according to the matching result; wherein, the designated PON port is a PON port which has unauthenticated ONUs below the PON port and configured ONUs below the PON port are not online or unauthenticated ONUs below the PON port and the number of the unauthenticated ONUs below the PON port is greater than a designated threshold value; the configured ONU is not used for indicating that the configured ONU is in a state of being incapable of forwarding the service; wherein the designation information includes at least one of: registering identification information and geographical position identification information;
a memory 94 coupled to the processor 92.
Through the network element, the specified information of the unauthenticated optical network unit ONU which is determined to have the unauthenticated ONU and the configured ONUs not on line or the unauthenticated ONU which has the unauthenticated ONU and the number of the unauthenticated ONUs is greater than the specified threshold value is matched with the specified information of the configured ONUs corresponding to the preset PON ports, and the position of the inserted optical fiber is determined according to the matching result, so that the position of the inserted optical fiber can be determined even if a large number of optical fibers exist, therefore, the problem that the position of the inserted optical fiber cannot be determined in an xPON network in the related technology can be solved, and the optical fiber can be rapidly positioned and recovered.
It should be noted that, when the specifying information includes the geographic location identification information, the plurality of PON ports are all PON ports within a geographic coverage range corresponding to the specified PON port; the geographical coverage range is a geographical range covered by a circle which takes the center point of an area formed by all the ONUs of the designated PON port as the center of a circle and takes the longest distance in the distances between the designated PON port and all the ONUs as the radius.
The processor 92 is configured to determine that a trunk fiber corresponding to the designated PON port is inserted incorrectly when the number of matching pieces of designation information of an unauthenticated ONU corresponding to the designated PON port and designation information of a configured ONU corresponding to a first PON port of the plurality of PON ports exceeds a first predetermined threshold; and/or determining that the branch optical fiber corresponding to the specified PON port is inserted incorrectly when the number of the specified information of the unauthenticated ONU corresponding to the specified PON port matched with the specified information of the configured ONU corresponding to the first PON port in the plurality of PON ports is less than or equal to a first preset threshold value.
The processor 92 may be further configured to determine that the designated PON port is an erroneously-inserted PON port when it is determined that the trunk optical fiber corresponding to the designated PON port is erroneously inserted; determining the position of the first PON port as the position of the PON port to be inserted; and generating a first alarm notification message, wherein the first alarm notification message comprises: and specifying the main optical fiber corresponding to the PON port to be inserted by mistake, inserting PON port information by mistake and inserting the PON port information.
The processor 92 may be further configured to mark the mis-plugged PON port and the PON port to be plugged with a first designated mark; the first designated mark is used for indicating that the optical fiber needs to be replaced for the misplugging PON port and the corresponding PON port.
The processor 92 is configured to, when it is determined that the branch optical fiber corresponding to the designated PON port is inserted incorrectly, generate an access-required position of an unauthenticated ONU corresponding to the designated PON port, based on the configuration information of the configured ONU corresponding to the first PON port; and generating a second warning message, wherein the second warning message comprises: and appointing the branch optical fiber corresponding to the PON port to be inserted wrongly and appointing the position information which is required to be accessed by the unauthenticated ONU and corresponds to the PON port.
It should be noted that, the processor 92 may be further configured to, when the specification information of the unauthenticated ONU corresponding to the specified PON port does not match the specification information of the configured ONU corresponding to any PON port in the plurality of PON ports, generate a network element relationship table corresponding to the network element where the specified PON port is located according to the following information: specifying information specifying a PON port, an unauthenticated ONU corresponding to the specified PON port, and specifying information specifying a plurality of PON ports and configured ONUs corresponding to the plurality of PON ports; sending a third alarm message to the network manager, wherein the third alarm message is used for indicating that the specified information of the configured ONU corresponding to the specified PON port is not matched with the specified information of the configured ONU corresponding to any PON port in the plurality of PON ports; the network element relation table is used for showing the corresponding relation between the PON port of the network element where the designated PON port is located and the designated information of the unauthenticated ONU; the network element relation table is used for comparing the network management with a preset network element relation table corresponding to a plurality of network elements to determine the position of the inserted wrong optical fiber of the designated PON port.
It should be noted that, for the network manager, the network element relationship table is compared with the preset network element relationship table corresponding to a plurality of network elements to determine the position of the inserted optical fiber of the designated PON port, which is described in detail in embodiment 1.
Example 4
An embodiment of the present invention further provides a storage medium including a stored program, where the program executes any one of the methods described above.
Optionally, in this embodiment, the storage medium may include, but is not limited to: various media capable of storing program codes, such as a usb disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic disk, or an optical disk.
Embodiments of the present invention also provide a processor configured to execute a program, where the program executes to perform any of the steps in the method.
Optionally, the specific examples in this embodiment may refer to the examples described in the above embodiments and optional implementation manners, and this embodiment is not described herein again.
It will be apparent to those skilled in the art that the modules or steps of the present invention described above may be implemented by a general purpose computing device, they may be centralized on a single computing device or distributed across a network of multiple computing devices, and alternatively, they may be implemented by program code executable by a computing device, such that they may be stored in a storage device and executed by a computing device, and in some cases, the steps shown or described may be performed in an order different than that described herein, or they may be separately fabricated into individual integrated circuit modules, or multiple ones of them may be fabricated into a single integrated circuit module. Thus, the present invention is not limited to any specific combination of hardware and software.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the principle of the present invention should be included in the protection scope of the present invention.
Claims (25)
1. A method of optical fiber position determination, comprising:
acquiring the appointed information of an unauthenticated optical network unit ONU corresponding to an appointed passive optical network PON port; wherein, the designated PON port is a PON port which has unauthenticated ONUs below the PON port and configured ONUs below the PON port are not online or unauthenticated ONUs below the PON port and the number of the unauthenticated ONUs below the PON port is greater than a designated threshold value; wherein the designation information includes at least one of: registering identification information and geographical position identification information; the configured ONU is not used for indicating that the configured ONU is in a state of being incapable of forwarding the service;
matching the specified information of the unauthenticated ONU corresponding to the specified PON port with the specified information of the configured ONU corresponding to the preset PON ports respectively to obtain a matching result;
determining the position of the wrongly-inserted optical fiber of the designated PON port according to the matching result;
the determining the position of the optical fiber inserted incorrectly in the designated PON port according to the matching result comprises:
determining that a trunk fiber corresponding to the designated PON port is inserted incorrectly when the number of the designated information of the unauthenticated ONU corresponding to the designated PON port and the designated information of the configured ONU corresponding to the first PON port in the plurality of PON ports exceeds a first preset threshold value;
and determining that the branch optical fiber corresponding to the specified PON port is inserted incorrectly when the number of the specified information of the unauthenticated ONU corresponding to the specified PON port matched with the specified information of the configured ONU corresponding to the first PON port in the plurality of PON ports is less than or equal to a first preset threshold value.
2. The method according to claim 1, wherein in a case that the specific information includes the geographic location identification information, the plurality of PON ports are all PON ports within a geographic coverage range corresponding to the specific PON port; the geographical coverage range is a geographical range covered by a circle which takes the central point of an area formed by all the ONUs of the designated PON port as the center of a circle and takes the longest distance in the distances between the designated PON port and all the ONUs as the radius.
3. The method of claim 1, wherein in the event that a trunk fiber corresponding to the designated PON port is determined to be mis-plugged, the method further comprises:
determining the designated PON port as a misplugging PON port;
determining the position of the first PON port as the position of the PON port to be inserted;
generating a first alert notification message, wherein the first alert notification message comprises: and the trunk optical fiber corresponding to the designated PON port is inserted by mistake, PON port information is inserted by mistake, and the PON port information is inserted.
4. The method of claim 3, wherein after determining the location of the first PON port as the location where the PON port should be inserted, the method further comprises:
marking the misplug PON port and the PON port to be plugged by using a first designated mark; the first designated mark is used for indicating that the optical fibers of the misplugging PON port and the optical fibers of the PON port to be plugged need to be replaced.
5. The method of claim 1, wherein in the event that it is determined that a branch fiber corresponding to the designated PON port is misplugged, the method further comprises:
generating a corresponding access position of an unauthenticated ONU corresponding to the specified PON port according to the configuration information of the configured ONU corresponding to the first PON port;
generating a second warning message, wherein the second warning message comprises: and the branch optical fiber corresponding to the designated PON port is inserted wrongly, and the position information which is required to be accessed by the unauthenticated ONU and corresponds to the designated PON port.
6. The method according to claim 1 or 2, wherein determining the position of the misplugged fiber of the designated PON port according to the matching result comprises:
when the specified information of the unauthenticated ONU corresponding to the specified PON port is not matched with the specified information of the configured ONU corresponding to any PON port in the plurality of PON ports, generating a network element relation table corresponding to the network element where the specified PON port is located according to the following information: the designated PON port, the designated PON port corresponding to the designated ONU designation information, the plurality of PON ports corresponding to the ONU designation information; the network element relation table is used for representing the corresponding relation between the PON port of the network element where the specified PON port is located and the specified information of the unauthenticated ONU;
and sending a third alarm message to the network manager, wherein the third alarm message is used for indicating that the specified information of the unauthenticated ONU corresponding to the specified PON port is not matched with the specified information of the configured ONU corresponding to any PON port in the plurality of PON ports.
7. The method according to claim 6, wherein after sending the third alarm message to the network manager, the third alarm message indicating that the designation information of the unauthenticated ONU corresponding to the designated PON port does not match the designation information of the configured ONU corresponding to any of the plurality of PON ports, the method further comprises:
the network manager obtains the network element relation table;
the network manager compares the network element relation table with a preset network element relation table corresponding to a plurality of network elements to obtain a comparison result;
and the network manager determines the position of the inserted wrong optical fiber of the appointed PON port according to the comparison result.
8. The method according to claim 7, wherein the network manager determining the position of the optical fiber inserted with the error in the designated PON port according to the comparison result comprises:
when the number of the designated information of the unauthenticated ONU corresponding to the designated PON port and the designated information of the configured ONU corresponding to the second PON port of the first network element in the plurality of network elements exceeds a second preset threshold value, the network manager determines that the trunk optical fiber corresponding to the designated PON port is inserted wrongly;
and under the condition that the matching quantity of the specified information of the unauthenticated ONU corresponding to the specified PON port and the specified information of the configured ONU corresponding to the second PON port of the first network element in the plurality of network elements is less than or equal to a second preset threshold value, the network manager determines that the branch optical fiber corresponding to the specified PON port is inserted wrongly.
9. The method according to claim 8, wherein in case that the network manager determines that the trunk fiber corresponding to the designated PON port is inserted incorrectly, the method further comprises:
the network manager determines that the designated PON port is a misplugging PON port;
the network manager determines the position of a second PON port of the first network element as the position of a port to be plugged;
the network manager generates a fourth alarm notification message, wherein the fourth alarm notification message includes: misplug of the trunk optical fiber corresponding to the designated PON port, information of the misplug port and information of the port to be plugged; wherein, the information of the misplug port comprises: the mis-plugged PON port information and the network element information where the mis-plugged PON port is located, where the information of the port to be plugged includes: the first network element information and the second PON port information.
10. The method of claim 9, wherein after the network manager determines the location of the second PON port of the first network element as the location of the port to be plugged, the method further comprises:
the network pipe marks the misplug port and the to-be-plugged port by using a second designated mark; wherein the second indicator is used for indicating that the optical fiber needs to be replaced for the misplugging port and the pluggable port.
11. The method according to claim 8, wherein in case that the network manager determines that the branch optical fiber corresponding to the designated PON port is inserted incorrectly, the method further comprises:
the network manager generates a corresponding access position of the unauthenticated ONU corresponding to the specified PON port according to the configuration information of the configured ONU corresponding to the second PON port;
the network manager generates a fifth alarm message, wherein the fifth alarm message includes: and the branch optical fiber corresponding to the designated PON port is inserted wrongly, and the position information which is required to be accessed by the unauthenticated ONU and corresponds to the designated PON port.
12. An optical fiber position determining apparatus, comprising:
the device comprises an acquisition module, a control module and a control module, wherein the acquisition module is used for acquiring the specified information of an unauthenticated optical network unit ONU corresponding to a specified passive optical network PON port; the designated PON port is a PON port which is provided with unauthenticated ONUs below the PON port and configured ONUs below the PON port are not online or provided with unauthenticated ONUs below the PON port, and the number of the unauthenticated ONUs below the PON port is larger than a designated threshold value; wherein the designation information includes at least one of: registering identification information and geographical position identification information; the configured ONU is not used for indicating that the configured ONU is in a state of being incapable of forwarding the service;
the matching module is used for matching the specified information of the unauthenticated ONU corresponding to the specified PON port with the specified information of the configured ONU corresponding to the preset PON ports respectively to obtain a matching result;
the determining module is used for determining the position of the wrong inserted optical fiber of the designated PON port according to the matching result;
the determining module is configured to determine that a trunk fiber corresponding to the designated PON port is inserted incorrectly when the number of matching pieces of designation information of an unauthenticated ONU corresponding to the designated PON port and designation information of a configured ONU corresponding to a first PON port of the plurality of PON ports exceeds a first predetermined threshold; and/or, the optical network controller is configured to determine that a branch optical fiber corresponding to the specified PON port is inserted incorrectly when the number of matching between the specification information of the unauthenticated ONU corresponding to the specified PON port and the specification information of the configured ONU corresponding to the first PON port in the plurality of PON ports is less than or equal to a first predetermined threshold.
13. The apparatus according to claim 12, wherein in a case that the specific information includes the geographic location identification information, the plurality of PON ports are all PON ports within a geographic coverage area corresponding to the specific PON port; the geographical coverage range is a geographical range covered by a circle which takes the central point of an area formed by all the ONUs of the designated PON port as the center of a circle and takes the longest distance in the distances between the designated PON port and all the ONUs as the radius.
14. The apparatus according to claim 12, wherein the determining module is further configured to determine that the designated PON port is an erroneously-inserted PON port if it is determined that the trunk optical fiber corresponding to the designated PON port is erroneously inserted; determining the position of the first PON port as the position of the PON port to be inserted;
the device further comprises: a first alarm module, configured to generate a first alarm notification message, where the first alarm notification message includes: and the trunk optical fiber corresponding to the designated PON port is inserted by mistake, PON port information is inserted by mistake, and the PON port information is inserted.
15. The apparatus of claim 14, further comprising:
the first marking module is used for marking the misplugging PON port and the PON port to be plugged by a first designated mark; the first designated mark is used for indicating that the optical fibers of the misplugging PON port and the optical fibers of the PON port to be plugged need to be replaced.
16. The apparatus of claim 12, further comprising:
a first generating module, configured to generate, according to configuration information of a configured ONU corresponding to the first PON port, a location to be accessed of an unauthenticated ONU corresponding to the specified PON port, when it is determined that a branch optical fiber corresponding to the specified PON port is inserted incorrectly;
a second warning module, configured to generate a second warning message, where the second warning message includes: and the branch optical fiber corresponding to the designated PON port is inserted wrongly, and the position information which is required to be accessed by the unauthenticated ONU and corresponds to the designated PON port.
17. The apparatus according to claim 12 or 13, wherein the determining module is further configured to, in a case that the specifying information of the unauthenticated ONU corresponding to the specified PON port does not match with the specifying information of the configured ONU corresponding to any PON port in the plurality of PON ports, generate the network element relationship table corresponding to the network element in which the specified PON port is located according to the following information: the designated PON port, the designated PON port corresponding to the designated ONU designation information, the plurality of PON ports corresponding to the ONU designation information; the network element relation table is used for representing the corresponding relation between the PON port of the network element where the specified PON port is located and the specified information of the unauthenticated ONU; the network element relation table is used for comparing a network manager with a preset network element relation table corresponding to a plurality of network elements to determine the position of the inserted wrong optical fiber of the specified PON port;
the device further comprises: a sending module, configured to send, to the network manager, a third alarm message indicating that the designation information of the unauthenticated ONU corresponding to the designated PON port is not matched with the designation information of the configured ONU corresponding to any PON port of the plurality of PON ports.
18. A network element, comprising:
the processor is used for acquiring the specified information of the unauthenticated optical network unit ONU corresponding to the specified passive optical network PON port; matching the specified information of the unauthenticated ONU corresponding to the specified PON port with the specified information of the configured ONU corresponding to the preset PON ports respectively to obtain a matching result; determining the position of the wrongly inserted optical fiber of the appointed PON port according to the matching result; the designated PON port is a PON port which is provided with unauthenticated ONUs below the PON port and configured ONUs below the PON port are not online or provided with unauthenticated ONUs below the PON port, and the number of the unauthenticated ONUs below the PON port is larger than a designated threshold value; wherein the designation information includes at least one of: registering identification information and geographical position identification information; the configured ONU is not used for indicating that the configured ONU is in a state of being incapable of forwarding the service;
a memory coupled with the processor;
the processor is configured to determine that a trunk fiber corresponding to the designated PON port is inserted incorrectly when the number of matching pieces of designation information of unauthenticated ONUs corresponding to the designated PON port and designation information of configured ONUs corresponding to a first PON port of the plurality of PON ports exceeds a first predetermined threshold; and/or, the optical network controller is configured to determine that a branch optical fiber corresponding to the specified PON port is inserted incorrectly when the number of matching between the specification information of the unauthenticated ONU corresponding to the specified PON port and the specification information of the configured ONU corresponding to the first PON port in the plurality of PON ports is less than or equal to a first predetermined threshold.
19. The network element of claim 18, wherein, in a case that the specific information includes the geographic location identifier information, the PON ports are all PON ports within a geographic coverage area corresponding to the specific PON port; the geographical coverage range is a geographical range covered by a circle which takes the central point of an area formed by all the ONUs of the designated PON port as the center of a circle and takes the longest distance in the distances between the designated PON port and all the ONUs as the radius.
20. The network element of claim 18, wherein the processor is further configured to determine that the designated PON port is an erroneously-inserted PON port if it is determined that the trunk fiber corresponding to the designated PON port is erroneously inserted; determining the position of the first PON port as the position of the PON port to be inserted; and generating a first alert notification message, wherein the first alert notification message comprises: and the trunk optical fiber corresponding to the designated PON port is inserted by mistake, PON port information is inserted by mistake, and the PON port information is inserted.
21. The network element of claim 20, wherein the processor is further configured to mark the misplugged PON port and the due-insertion PON port with a first specified mark; the first designated mark is used for indicating that the optical fibers of the misplugging PON port and the optical fibers of the PON port to be plugged need to be replaced.
22. The network element of claim 18, wherein the processor is configured to, when it is determined that a branch optical fiber corresponding to the specified PON port is inserted incorrectly, generate an access location of an unauthenticated ONU corresponding to the specified PON port according to configuration information of a configured ONU corresponding to the first PON port; and generating a second warning message, wherein the second warning message comprises: and the branch optical fiber corresponding to the designated PON port is inserted wrongly, and the position information which is required to be accessed by the unauthenticated ONU and corresponds to the designated PON port.
23. The network element according to claim 18 or 19, wherein the processor is further configured to generate, in a case that the specifying information of the unauthenticated ONU corresponding to the specified PON port does not match with the specifying information of the configured ONU corresponding to any PON port in the plurality of PON ports, the network element relationship table corresponding to the network element in which the specified PON port is located according to the following information: the designated PON port, the designated PON port corresponding to the designated ONU designation information, the plurality of PON ports corresponding to the ONU designation information; sending a third alarm message to the network manager, wherein the third alarm message is used for indicating that the specified information of the unauthenticated ONU corresponding to the specified PON port is not matched with the specified information of the configured ONU corresponding to any PON port in the plurality of PON ports; the network element relation table is used for representing the corresponding relation between the PON port of the network element where the specified PON port is located and the specified information of the unauthenticated ONU; and the network element relation table is used for comparing the network manager with preset network element relation tables corresponding to a plurality of network elements to determine the position of the inserted wrong optical fiber of the specified PON port.
24. A storage medium, comprising a stored program, wherein the program when executed performs the method of any one of claims 1 to 11.
25. A processor, configured to run a program, wherein the program when running performs the method of any one of claims 1 to 11.
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CN114070391A (en) * | 2020-07-30 | 2022-02-18 | 中兴通讯股份有限公司 | ONU (optical network Unit) migration detection method, OLT (optical line terminal), ONU and storage medium |
CN112422183B (en) * | 2020-12-08 | 2022-03-15 | 中国联合网络通信集团有限公司 | Network fault positioning method and device |
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Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101345581A (en) * | 2007-07-13 | 2009-01-14 | 华为技术有限公司 | Fault location method and system for passive optical network |
CN102082977A (en) * | 2009-12-01 | 2011-06-01 | 中国电信股份有限公司 | Authentication method and system of optical network unit |
JP2012124687A (en) * | 2010-12-08 | 2012-06-28 | Mitsubishi Electric Corp | Pon master device |
CN104065495A (en) * | 2013-03-18 | 2014-09-24 | 中兴通讯股份有限公司 | Long light emitting ONU judging method and device and passive optical network system |
CN105721186A (en) * | 2014-12-04 | 2016-06-29 | 华为技术有限公司 | Method and apparatus for determining ODN connection relation |
US9667376B2 (en) * | 2013-08-16 | 2017-05-30 | Futurewei Technologies, Inc. | Traffic-bearing entity identification in multiple-wavelength passive optical networks (PONs) |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090129773A1 (en) * | 2007-11-21 | 2009-05-21 | Moshe Oron | Method and apparatus for isolating a location of a fault in a passive optical network |
-
2017
- 2017-06-26 CN CN201710495382.3A patent/CN109120334B/en active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101345581A (en) * | 2007-07-13 | 2009-01-14 | 华为技术有限公司 | Fault location method and system for passive optical network |
CN102082977A (en) * | 2009-12-01 | 2011-06-01 | 中国电信股份有限公司 | Authentication method and system of optical network unit |
JP2012124687A (en) * | 2010-12-08 | 2012-06-28 | Mitsubishi Electric Corp | Pon master device |
CN104065495A (en) * | 2013-03-18 | 2014-09-24 | 中兴通讯股份有限公司 | Long light emitting ONU judging method and device and passive optical network system |
US9667376B2 (en) * | 2013-08-16 | 2017-05-30 | Futurewei Technologies, Inc. | Traffic-bearing entity identification in multiple-wavelength passive optical networks (PONs) |
CN105721186A (en) * | 2014-12-04 | 2016-06-29 | 华为技术有限公司 | Method and apparatus for determining ODN connection relation |
Non-Patent Citations (3)
Title |
---|
Joint Wireless and Optical Power States Scheduling for Green Multi-Radio Fiber-Wireless Access Network;Pengchao Han;《 Journal of Lightwave Technology 》;20160212;全文 * |
有线电视网络EPON ONU自动认证系统的研究;郭浩;《广播电视信息》;20161015;全文 * |
浅谈无源光网络PON ODN监控与应用;余辰东;《邮电设计技术》;20160920;全文 * |
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