WO2016095082A1 - 一种流氓光网络单元的检测方法、装置及系统 - Google Patents

一种流氓光网络单元的检测方法、装置及系统 Download PDF

Info

Publication number
WO2016095082A1
WO2016095082A1 PCT/CN2014/093820 CN2014093820W WO2016095082A1 WO 2016095082 A1 WO2016095082 A1 WO 2016095082A1 CN 2014093820 W CN2014093820 W CN 2014093820W WO 2016095082 A1 WO2016095082 A1 WO 2016095082A1
Authority
WO
WIPO (PCT)
Prior art keywords
onu
identifier
olt
message
rogue
Prior art date
Application number
PCT/CN2014/093820
Other languages
English (en)
French (fr)
Inventor
屈波
杜柏城
吕大为
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN201480077046.1A priority Critical patent/CN106464356B/zh
Priority to KR1020177019030A priority patent/KR101961053B1/ko
Priority to PCT/CN2014/093820 priority patent/WO2016095082A1/zh
Priority to EP14908117.6A priority patent/EP3220556B1/en
Priority to JP2017549564A priority patent/JP6551893B2/ja
Publication of WO2016095082A1 publication Critical patent/WO2016095082A1/zh
Priority to US15/622,760 priority patent/US10110301B2/en

Links

Images

Classifications

    • 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
    • H04B10/073—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an out-of-service signal
    • H04B10/0731—Testing or characterisation of optical devices, e.g. amplifiers
    • 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
    • H04B10/27—Arrangements for networking
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0062—Network aspects
    • 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
    • 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
    • H04B10/40—Transceivers
    • 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
    • H04B10/50—Transmitters
    • 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
    • H04B10/60—Receivers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0062—Network aspects
    • H04Q2011/0079—Operation or maintenance aspects
    • H04Q2011/0083—Testing; Monitoring

Definitions

  • the present invention relates to the field of communications, and in particular, to a method, device and system for detecting a rogue optical network unit.
  • an OLT optical line terminal
  • ONUs optical network units
  • ONTs optical network terminals
  • the downlink information of the OLT is uniformly transmitted to all ONUs through a fixed downlink optical wavelength; in the uplink direction, all ONUs illuminate in a specific time slot according to the rule of time division multiplexing the optical path bandwidth, that is, the ONU follows
  • the bandwidth allocation of the OLT indicates uplink illumination, and the rogue ONU is an ONU that does not follow the bandwidth allocation indication of the OLT.
  • rogue ONUs There are many types of rogue ONUs. From the perspective of the luminous time of rogue ONUs, they can be divided into:
  • the ONUs are illuminating at any time.
  • an ONU When an ONU is long-lived, it will occupy all the upstream time slots of the upstream optical wavelength, causing other ONUs to fail to upload information and data streams. .
  • This kind of long-lighting rogue ONU has many detection, troubleshooting and isolation methods, and belongs to the rogue ONU in the traditional sense.
  • the OLT may be illuminated in advance, or delayed, etc., resulting in the influence of "adjacent" ONUs.
  • This rogue ONU can be effectively processed by certain means.
  • This rogue ONU is random, and detection, troubleshooting, and isolation are very difficult.
  • the generalization of the ONU detection, troubleshooting and isolation technology is as follows: the overall solution interoperability of each manufacturer is not strong; some rogue ONU detection and inspection takes a long time, and the business interruption time is long.
  • the existing rogue ONU detection technology most of the OLT's "idle time" receives light to determine whether there is a rogue ONU.
  • This "idle time” may be a dedicated time window for the OLT to measure the rogue ONU, or authorized by the normal ONU. Free time.
  • the OLT determines whether there is a rogue ONU under the OLT through the idle time.
  • a multi-detection and repeated confirmation mechanism is generally adopted. This method can identify the long-lighting rogue ONU and the OLT authorization range. A rogue ONU that advances or delays illumination. On the basis of completing the rogue ONU identification, the rogue ONU is isolated.
  • the rogue ONU of the present invention is a new type of rogue ONU.
  • the operation interface prompts that an ONU ID (Identifier) in the system cannot be used.
  • This new type of rogue ONU has not been widely recognized by the industry at present, and there is no better processing method.
  • the operator still needs to take a long time to manually insert and remove the optical fiber on the ODN, and then Observe the on-line behavior of the ONU on the OLT to check the rogue ONU one by one, which is inefficient.
  • the embodiments of the present invention provide a method, a device, and a system for detecting a rogue ONU, so as to implement detection, troubleshooting, and isolation of a novel rogue ONU.
  • an embodiment of the present invention provides a method for detecting an ONU of a rogue optical network unit, including: an optical line terminal OLT determines that an ONU is offline, and an OLT sends a detection message carrying an ONU identifier to an ONU corresponding to the ONU identifier.
  • the ONU identifier is an ONU identifier that is occupied by the ONU before being offline and is not reassigned.
  • the detection message indicates that the ONU corresponding to the ONU identifier reports an identity identification code; the OLT receives a response message, and the response message carries An identity code of the ONU that sends the response message; the OLT determines that the ONU corresponding to the identity code carried in the response message is a rogue ONU.
  • the OLT sends a detection message carrying the ONU identifier to the ONU corresponding to the ONU identifier at a preset time interval, when the OLT is used.
  • the sending of the detection message is stopped.
  • the ONU identifier is an ONU identifier in the passive optical network PON that cannot be normally used.
  • the OLT further includes: the OLT The OLT determines whether the ONU is registered as the roaming ONU by using the ONU identifier to register the online line. When the ONU does not use the ONU identifier to register the online line, the OLT determines that the ONU corresponding to the identity code carried in the response message is a rogue ONU.
  • the OLT determines that the identity identifier code carried in the response message corresponds to After the ONU is a rogue ONU, the OLT sends an isolation message to the rogue ONU, and the isolation message instructs the rogue ONU to stop responding to the OLT.
  • the ONU identifier includes the ONU in a periodic sleep mode and/or The ONU ID occupied before the offline line in the hiccup mode.
  • the identity identification code includes a serial number, a media access control address At least one of a logical link identifier, a logical ONU identifier, and an ONU identifier.
  • the embodiment of the present invention provides a method for detecting an ONU of a rogue optical network unit, including: after the ONU goes offline, receiving a detection message carrying an ONU identifier from an optical line terminal OLT, where the ONU identifier is the ONU Occupied before being offline and not Re-assigning the ONU identifier, the detection message indicating that the ONU corresponding to the ONU identifier reports the identity identification code; when the ONU saves the ONU identifier, the ONU sends a response message to the OLT, the response message The identifier of the ONU is carried in the OLT to determine that the ONU is a rogue ONU according to the identity code carried in the response message.
  • the passive optical network PON medium access control MAC is physically and/or logically separated from the main processor.
  • the PON MAC is not controlled by the main processor, and sends the response message to the OLT.
  • the ONU identifier is an ONU identifier in the passive optical network PON that cannot be used normally.
  • the OLT is determined according to the identity identification code carried by the response message. After the ONU is a rogue ONU, the ONU receives an isolated message from the OLT, and the isolation message instructs the ONU to stop responding to the OLT.
  • the ONU identifier includes the ONU in a periodic sleep mode and/or The ONU ID occupied before the offline line in the hiccup mode.
  • the identity identification code includes a serial number, a media access control address At least one of a logical link identifier, a logical ONU identifier, and an ONU identifier.
  • an embodiment of the present invention provides an optical line terminal OLT, where the OLT includes: an optical network unit ONU status determining module, configured to determine an ONU offline line; and a detection message sending module, configured to send a detection of carrying an ONU identifier Message to the ONU identity pair
  • the ONU identifier is an ONU identifier that is occupied by the ONU before being offline and is not reassigned.
  • the detection message indicates that the ONU corresponding to the ONU identifier reports an identity identification code; the response message receiving module is used to Receiving a response message, the response message carries an identity code of the ONU that sends the response message, and the flow ONU determining module is configured to determine that the ONU corresponding to the identity code carried in the response message is a rogue ONU.
  • the detecting message sending module is configured to send, by using a preset time interval, a detection message carrying an ONU identifier to the ONU identifier.
  • the ONU stops sending the detection message when the ONU corresponding to the identity code carried in the response message is determined to be a rogue ONU.
  • the ONU identifier is an ONU identifier in the passive optical network PON that cannot be normally used.
  • the rogue ONU determining module is configured to determine whether an ONU is used.
  • the ONU identifier is registered on the line.
  • the ONU corresponding to the identity code carried in the response message is determined to be a rogue ONU.
  • the fourth possible implementation manner of the third aspect further includes: an isolation message sending module, configured to: After the ONU corresponding to the identity code carried in the response message is a rogue ONU, an isolation message is sent to the rogue ONU, and the isolation message instructs the rogue ONU to stop responding to the OLT.
  • an isolation message sending module configured to: After the ONU corresponding to the identity code carried in the response message is a rogue ONU, an isolation message is sent to the rogue ONU, and the isolation message instructs the rogue ONU to stop responding to the OLT.
  • the ONU identifier includes the ONU in a periodic sleep mode and/or The ONU ID occupied before the offline line in the hiccup mode.
  • the identity identification code includes at least one of a sequence number, a media access control address, a logical link identifier, a logical ONU identifier, and an ONU identifier.
  • an embodiment of the present invention provides an optical network unit ONU, where the ONU includes: a detection message receiving module, configured to receive a detection message carrying an ONU identifier from an optical line terminal OLT after the ONU goes offline.
  • the ONU identifier is an ONU identifier that is occupied by the ONU before being offline and is not reassigned.
  • the detection message indicates that the ONU corresponding to the ONU identifier reports an identity identification code, and the response message sending module is used to be the ONU.
  • the response message is sent to the OLT, and the response message carries the identity code of the ONU, so that the OLT determines the ONU according to the identity code carried in the response message.
  • Rogue ONU configured to receive a detection message carrying an ONU identifier from an optical line terminal OLT after the ONU goes offline.
  • the ONU identifier is an ONU identifier that is occupied by the ONU before being offline and is not reassigned.
  • the detection message indicates that the ONU
  • the method further includes: a passive optical network PON medium access control MAC and a main processor, where the PON MAC and the main processor are physically / or logically separated, the PON MAC is not controlled by the main processor, and the response message is sent to the OLT.
  • the ONU identifier is an ONU identifier that cannot be normally used in the passive optical network PON.
  • the third possible implementation manner of the fourth aspect further includes: an isolation message receiving module, configured by the OLT according to The identity identifier code carried in the response message determines that the ONU is an OSPF server, and receives an quarantine message from the OLT.
  • the quarantine message indicates that the ONU stops responding to the OLT.
  • the ONU identifier includes the ONU in a periodic sleep mode and/or The ONU ID occupied before the offline line in the hiccup mode.
  • the identity identification code includes at least one of a sequence number, a media access control address, a logical link identifier, a logical ONU identifier, and an ONU identifier.
  • an embodiment of the present invention provides a detection system for a rogue optical network unit ONU, which is characterized in that it includes an optical line terminal OLT and an ONU, and the OLT is configured to determine that an ONU is offline and sends an ONU identifier.
  • the detection message is sent to the ONU corresponding to the ONU identifier, and the ONU identifier is an ONU identifier that is occupied by the ONU before being offline and not re-allocated, and the detection message indicates that the ONU corresponding to the ONU identifier reports the identity identification code;
  • the ONU is configured to: when the ONU saves the ONU identifier, send a response message to the OLT, where the response message carries an identity code of the ONU; and the OLT is configured to respond according to the The identity code carried by the message determines that the ONU is a rogue ONU.
  • the OLT is configured to send, by using a preset time interval, a detection message carrying an ONU identifier to an ONU corresponding to the ONU identifier, when And when the determining that the ONU corresponding to the identity code carried by the response message is a rogue ONU, stopping sending the detection message.
  • the passive optical network PON medium access control MAC and the main processor physics Up and/or logically separated the PON MAC is not controlled by the main processor, and the response message is sent to the OLT.
  • the ONU identifier cannot be normal in the passive optical network PON.
  • the ONU ID used.
  • the OLT is configured to determine whether an ONU is used by using the ONU The identifier is registered on the line. When the ONU does not use the ONU identifier to register the online line, the ONU corresponding to the identity code carried in the response message is determined to be a stream. ⁇ ONU.
  • the OLT is configured to determine that the response message is carried After the ONU corresponding to the identity code is a rogue ONU, an isolation message is sent to the rogue ONU, and the isolation message instructs the rogue ONU to stop responding to the OLT.
  • the ONU identifier includes the ONU in a periodic sleep mode and/or The ONU ID occupied before the offline line in the hiccup mode.
  • the identity identification code includes a serial number, a media access control address At least one of a logical link identifier, a logical ONU identifier, and an ONU identifier.
  • an optical line terminal OLT includes: a processor, a memory, a bus, and a communication interface; the memory is configured to store a computer to execute an instruction, the processor and the memory are connected through a bus, and when the computer is running, the processor performs the memory storage.
  • the computer executes the instructions to cause the computer to perform the method as described in the first aspect and any one of the possible implementations of the first aspect.
  • an optical network unit ONU includes: a processor, a memory, a bus, and a communication interface; the memory is configured to store a computer to execute an instruction, the processor and the memory are connected through a bus, and when the computer is running, the processor executes the memory storage.
  • the computer executes the instructions to cause the computer to perform the method of any one of the possible implementations of the second aspect and the second aspect.
  • the OLT determines that the ONU is offline, obtains the ONU identifier that is occupied by the ONU before being offline, and sends a detection message carrying the ONU identifier to the ONU corresponding to the ONU identifier.
  • the identity code is received after receiving the detection message, and the OLT can obtain the identity code quickly.
  • the technical solution provided by the embodiment of the present invention implements automatic detection and isolation of a new rogue ONU, improves the detection efficiency of the rogue ONU, and reduces the impact on the normal service.
  • FIG. 1 is a schematic diagram of a network architecture of a PON
  • FIG. 2 is a schematic diagram of a logical structure of an ONU
  • FIG. 3 is a signaling interaction diagram of a method for detecting a rogue ONU according to an embodiment of the present invention
  • FIG. 4 is an exemplary flowchart of a method for detecting a rogue ONU that implements an embodiment of the present invention
  • FIG. 5 is an exemplary flowchart of a method for detecting a rogue ONU according to an embodiment of the present invention
  • FIG. 6 is a schematic diagram showing the logical structure of an optical line terminal OLT implementing an embodiment of the present invention.
  • FIG. 7 is a schematic diagram of a logical structure of an optical network unit ONU implementing an embodiment of the present invention.
  • FIG. 8 is a schematic diagram showing the logical structure of a detection system for a rogue ONU according to an embodiment of the present invention.
  • the PON technology is a point-to-multipoint (P2MP) optical access technology consisting of an OLT, a Passive Optical Splitter (POS), an ONU, and an optical fiber.
  • P2MP point-to-multipoint
  • the point is connected by fiber (between OLT and POS, between two levels of POS, between POS and ONU).
  • the OLT considers that the ONU41 is offline, but the ONU41 The information of the ONU ID is 25 (for example, the ONU ID is 25), and the DBA (Dynamic Bandwidth Assignment) authorization for the ONU ID of 25 is continuously responded to by the OLT. At this time, the ONU 41 becomes Rogue ONU. If the ONU 41 is in an abnormal state and cannot recover from the fault, the ONU 16 in the normal state under the OLT attempts to register the online line with the ONU ID of 25 under the OLT.
  • the ONU 41 is abnormal, such as software crash or software abnormality, or the ONU41 software registration online module is abnormal
  • the OLT considers that the ONU41 is offline, but the ONU41 The information of the ONU ID is 25 (for example, the ONU ID is 25), and the DBA (Dynamic Bandwidth Assignment) authorization for the ONU ID of 25 is continuously responded to by the OLT. At this time, the ONU 41 becomes Rogue ONU. If the ONU 41 is in an
  • the ONU 16 may not be registered to go online due to the influence of the ONU 41. Because the OLT allocates bandwidth to the ONU with the ONU ID of 25, the OLT receives the message sent by the ONU41 and the ONU16 at the same time when the ONU ID is 25. The two lights collide in the same sequence. Upstream frames/messages that the OLT cannot delimit properly. This phenomenon is manifested on the OLT and the upper-layer NMS. A certain ONU ID cannot be used on a certain port of the OLT. The ONU ID in the normal state cannot be registered online.
  • SID-RONU Specific ONU ID's Rouge ONU, a rogue ONU of a specific ONU ID
  • SID-RONU Special ONU ID's Rouge ONU, a rogue ONU of a specific ONU ID
  • the troubleshooting of this rogue ONU is quite difficult. It needs to be checked on the ODN by inserting and removing the optical fibers one by one, and then observing the ONU on-line behavior on the OLT.
  • the ONU 200 includes a CPU (Central Processing Unit) 201, a memory 202, an optical module 203, a PON MAC 204, and service forwarding logic 205.
  • the CPU 201 controls the PON MAC 204 and the service forwarding logic 205 by running the program code stored in the memory 202.
  • the optical module 203 is configured to receive or transmit an optical signal.
  • PON MAC204 refers to a device capable of processing GPON (Gigabit-Capable Passive Optical Network), XGPON, EPON (Ethernet Passive Optical Network), 10GEPON and other PON protocols.
  • GPON can process data of PMD (Physical Medium Dependent) and TC (Transition Convergence) layers in the GPON protocol.
  • PMD Physical Medium Dependent
  • TC Transition Convergence
  • ASCI Application Specific Integrated Circuits
  • the forwarding logic 205 is configured to perform forwarding processing on the Layer 2 service.
  • the precondition of the embodiment of the present invention is that the PON MAC in the ONU is separated from the upper layer software of the ONU, that is, the PON MAC is not controlled by the CPU and works independently.
  • the PON MAC can respond to the DBA of the OLT. Authorize, capture packets, parse messages, and be able to send response messages.
  • the OLT performs DBA authorization for the ONU ID that is occupied by the ONU before being offline and is not reassigned.
  • the ONU IDs are authorized one by one, and the detection messages are sent to the ONU corresponding to each ONU ID at least once at a preset time interval; if the SID-RONU is present, the timing of the DBA authorization after the SID-RONU receives the detection message
  • the OLT sends the response message carrying the identity code; the OLT obtains the identity code of the ONU from the response message, and the OLT can determine that the ONU corresponding to the obtained ONU identity code is a rogue ONU because the identity code can uniquely identify the identity information of the ONU; At this time, the OLT sends an isolation message to the rogue ONU to notify the rogue ONU to isolate itself, or can accurately know the specific location of the rogue ONU
  • the identity code of the ONU may be a system.
  • the configuration may also be a product code of the optical module, which may include, but is not limited to, a combination of at least one of the following: SN (Serial Number), MAC (Media Access Control) address, LLID (Logical) Link Identifier (Log ID), LOID (Logical ONU Identifier), ONU ID (ONU Identifier, ONU ID).
  • FIG. 3 is a signaling interaction diagram of a detection method of a rogue ONU according to an embodiment of the invention. As shown in FIG. 3, an ONU ID/LLID of 25 is used as an example, and an ONU that uses ONU ID/LLID 25 is defined as ONU25.
  • S301 The identity code indicating the ONU 25 is saved on the ONU 25.
  • the ONU25PON MAC After the ONU25 is powered on, the ONU25PON MAC obtains and stores the identity code indicating the ONU25 from the ONU25 software.
  • the identity code of the ONU 25 includes, but is not limited to, a combination of at least any one of the following: SN, MAC address, LLID, LOID, ONU ID.
  • the SN is written into the chip before leaving the factory, and the serial number is globally unique; the MAC address is used in the standard to define the location of the network device, and the MAC address is globally unique; the LLID is a digital identifier assigned to the logical link by the EPON system, each Logical links are assigned to different LLIDs; LOID is used to identify information such as the location of the ONU, which facilitates operation and maintenance; the ONU ID is defined by the ITU-T (ITU Telecommunication Standardization Sector) GPON/XGPON standard.
  • the OLT assigns to the registered ONU to identify a specific ONU. When there is no SID-RONU, each ONU connected to the same OLT has different identity codes to distinguish each ONU.
  • S302 The OLT authorizes the ONU 25 to register.
  • the ONU is registered under the authorization of the OLT.
  • an MPCP Multi-Point Control Protocol
  • OAM Operaation Administration and Maintenance
  • the ONU25 In the case of OLT authorization, the ONU25 is successfully registered to go online.
  • S304 Authorization and synchronization between the OLT and the ONU 25.
  • the OLT performs DBA authorization and management on the ONU 25 by using an ONU ID/LLID of 25 or the like.
  • the ONU25 has an abnormality in some cases, such as the ONU cannot be reset or the upper software is "hanged”.
  • Software "hanging” refers to software crash or software anomaly. After this happens, the software system is externally represented as scheduling exceptions such as processes and tasks, some functions cannot be used, and the system does not respond to external services and requests for a long time. If the PON MAC of the ONU 25 still retains the information such as the ONU ID/LLID of 25, and can respond to the OLT for the DBA authorization of the ONU ID/LLID of 25, the ONU 25 behaves as SID-RONU.
  • S306 The OLT receives an error message, and the OLT considers that the ONU 25 is offline.
  • the ONU 25 receives an error message from the ONU 25.
  • the OLT receives the error message from the ONU25.
  • the ONU is offline and the ONU25 is set to the offline state.
  • the OLT performs DBA authorization for the ONU with the ONU ID/LLID of 25, and sends a detection message.
  • the OLT performs a DBA authorization for the ONU ID that is occupied by the one or more ONUs before the offline line is not reassigned, and sends a detection message.
  • only the ONU ID is 25.
  • the OLT cannot determine whether the ONU 25 is normally offline, that is, whether the ONU 25 is a SID-RONU, and further detection is required to determine whether the ONU 25 becomes a SID-RONU.
  • the ONU 25 uses the ONU ID/LLID to log in to the ONU.
  • the OLT can perform an ONU ID/LLID that is occupied by the ONU before the offline line is not reassigned, for example, an ONU with an ONU ID/LLID of 25.
  • the DBA authorizes and sends a detection message.
  • the detection message sent by the OLT to the ONU 25 may be an extended PLOAM (Physical Layer Operations, Administration and Maintenance physical layer operation management and maintenance) message, and the extension field of the PLOAM message indicates that the message is a SID-RONU detection message. Among them, the value of the extension field is customized.
  • PLOAM Physical Layer Operations, Administration and Maintenance physical layer operation management and maintenance
  • the detection message sent by the OLT to the ONU 25 may be an extended OAM message.
  • the extended operation code in the message indicates that the message is an Extended Variable Request message sent by the OLT to the ONU.
  • the Branch field and the Leaf field in the OAM message indicate that the attribute of the message is a private extension.
  • the extended query code field in the OAM message indicates that the message is a SID-RONU detection message. For example, when the value of the query code is set to a non-zero integer, the message is used to query the SID-RONU identity code.
  • the message also carries the byte length of the extended query code field.
  • the OLT receives the DBA response message of the ONU with the ONU ID/LLID of 25, and captures the identity code of the ONU.
  • the PON MAC of the ONU 25 transmits the identity code of the ONU 25 within the DBA authorization timing of the OLT.
  • the OLT can determine that the SID-RONU exists in the system and try to capture the identity code of the SID-RONU.
  • only ONU25 is taken as an example.
  • the response message that the OLT receives the ONU can be implemented by the extended PLOAM message.
  • the identity code of the ONU may be carried by an extension field of the PLOAM message, such as, but not limited to, an ONU ID, an SN, a MAC address, a LOID, an LLID, and the like.
  • the message also carries a CRC (Cyclic Redundancy Check) for verifying the content of the message.
  • the response message that the OLT receives the ONU can be implemented by the extended OAM message.
  • the extended operation code in the message indicates that the message is an Extended Variable Response message sent by the ONU to the OLT.
  • the Branch field and the Leaf field in the OAM message indicate that the attribute of the message is a private extension.
  • the values of the Branch field and the Leaf field are consistent with the value of the SID-RONU detection message, indicating that the message is a response message for the SID-RONU detection message.
  • the OAM message carries the identity code of the ONU through an extension field, such as, but not limited to, an ONU ID, an SN, a MAC address, LOID, LLID, etc.
  • the message also carries the byte length of the extended field.
  • Steps S307 and S308 are repeated until the identity code of the ONU 25 is captured.
  • the uplink optical timing overlap of the ONU ID/LLID of 25 may occur between the OLT and the ONU, and the OLT may not receive the DBA response of the ONU 25 every time.
  • the identity code of the ONU 25 can be captured. The OLT needs to send the detection message multiple times until it receives the DBA response message with the ONU25 ID.
  • the OLT sends an isolation message to the ONU 25.
  • the OLT After the OLT obtains the identity code of the ONU 25, it determines that the ONU 25 is the SID-RONU, and sends an isolation message to the ONU 25. Alternatively, after the OLT obtains the identity code of the ONU 25, the specific location of the ONU 25 is determined, and the ONU 25 is manually checked.
  • the ONU 25 receives the isolation message, stops the DBA authorization response, or resets the PON MAC of the ONU 25.
  • the ONU 25 After receiving the quarantined message, the ONU 25 immediately stops the DBA authorization response for the ONU with the ONU ID/LLID of 25, and attempts to return to the normal state, such as resetting the PON MAC.
  • the OLT performs DBA authorization for the ONU identifier that is occupied by the ONU before the offline line is not reassigned, sends a detection message, and obtains the identity code of the ONU from the response message of the ONU and determines the identity code of the ONU.
  • the corresponding ONU is a rogue ONU, which effectively solves the problem of SID-RONU failure, realizes automatic detection and isolation of SID-RONU, improves detection efficiency, and reduces the impact on normal business.
  • FIG. 4 is an exemplary flow chart of a method for detecting a rogue ONU in accordance with an embodiment of the present invention.
  • the method may be performed by an optical line terminal OLT, including the following steps:
  • the optical line terminal OLT determines that the ONU is offline, and the OLT sends a detection message carrying the ONU identifier to the ONU corresponding to the ONU identifier, where the ONU identifier is an ONU identifier occupied by the ONU before being offline and not reassigned.
  • the detection message indicates that the ONU corresponding to the ONU identifier reports the identity identification code.
  • the OLT When the ONU is in the normal online state, if the software is abnormal or the software is crashed, the OLT will receive an error message and the ONU will be offline. In this case, the ONU may still not release its ONU ID and other information, resulting in the ONU. Change to SID-RONU. At this time, the OLT sets the ONU to the offline state, but cannot determine whether the ONU is offline or the SID-RONU is normal. Therefore, after the OLT determines that the ONU is offline, the OLT sends a detection message carrying the ONU identifier to the ONU identifier. The ONU is used to indicate that the ONU corresponding to the ONU identifier reports the identity code.
  • the detection message is a non-broadcast message
  • the ONU identifier carried in the detection message is an ONU identifier that is occupied by the ONU before being offline and is not re-allocated.
  • the ONU corresponding to the ONU identifier is an ONU that uses the ONU identifier to go online before the offline line.
  • the ONU is in a normal online state, including a power saving mode, and specifically includes a periodic sleep mode and a doze mode.
  • the OLT when the ONU identifier is not used in the passive optical network, the OLT sends a detection message carrying the ONU identifier to the ONU corresponding to the ONU identifier, to indicate that the ONU corresponding to the ONU identifier reports the identity identification code, where
  • the ONU identifier carried in the detection message is an ONU identifier that cannot be used normally.
  • the ONU identifier cannot be assigned to the ONU that is normally registered online.
  • the identity code of the ONU is not limited to any one or more of an ONU ID, an SN, a MAC address, a LOID, an LLID, and the like.
  • the OLT receives a response message, where the response message carries an identity code of an ONU that sends the response message.
  • the OLT can successfully obtain the identity code of the ONU that sends the response message every time the OLT receives the response message. Therefore, the OLT sends the detection message to the ONU at least once at a preset time interval, which may be a period. Sently sent. When the OLT responds from the consumer When the identity code of the ONU carried in the response message is obtained, the detection message is stopped.
  • the OLT determines that the ONU corresponding to the identity identifier carried in the response message is a rogue ONU.
  • each response message carries the identity code of the ONU that sent the response message.
  • the OLT when the ONU ID that is occupied by the ONU before being offline and is not reassigned is used by an ONU to be registered and uploaded by the SID-RONU, the OLT sends a detection message carrying the ONU ID.
  • the OLT will receive the response message carrying the identity code sent by the ONU and SID-RONU attempting to register online at the same time. At this time, the OLT cannot accurately determine which one is the SID-RONU.
  • the OLT needs to determine whether the ONU uses the ONU identifier carried in the detection message to register the online line. When the ONU identifier is not used, the OLT determines that the response message is carried.
  • the ONU corresponding to the identity code is a rogue ONU.
  • the OLT determines that the ONU corresponding to the identity code of the ONU carried in the response message is the rogue ONU
  • the OLT sends an isolation message to the corresponding rogue ONU, so that the rogue ONU stops responding to the OLT authorization; or, the ONU can also The identity code determines the specific location of the rogue ONU and performs manual troubleshooting.
  • the OLT sends a detection message of the ONU identifier that is occupied by the ONU before the offline line is not re-allocated, and obtains the identity code of the ONU from the received response message, thereby determining the identity code corresponding to the ONU.
  • the ONU is a rogue ONU, which realizes automatic detection and isolation of SID-RONU, improves detection efficiency, and reduces the impact on normal business.
  • FIG. 5 is an exemplary flowchart of a method for detecting a rogue ONU according to an embodiment of the invention.
  • the method can be performed by an optical network unit ONU, including the following steps:
  • the ONU After receiving the ONU, the ONU receives the detection message of the ONU identifier from the optical line terminal OLT, where the ONU identifier is an ONU identifier that is occupied by the ONU before being offline and not re-allocated, and the detection message indicates The ONU corresponding to the ONU identifies the identity code.
  • the OLT when the ONU is in the normal online state, the OLT considers that the ONU is offline because of a software exception or software crash. However, the ONU still keeps the ONU ID from being released. Therefore, the ONU can still respond to the OLT to reserve the ONU ID for itself.
  • the DBA is authorized to receive the detection message carrying the ONU identifier, where the ONU identifier carried in the detection message is an ONU identifier occupied by the ONU before being offline and not reassigned.
  • the ONU is in a normal online state, including a power saving mode, and specifically includes a periodic sleep mode and a doze mode.
  • the ONU corresponding to the ONU identifier receives the detection message from the OLT, and is used to indicate that the ONU corresponding to the ONU identifier reports the identity identification code, where the detection message is generated.
  • the ONU ID of the ONU is the ID of the ONU that cannot be used normally.
  • the ONU ID cannot be assigned to the ONU that is normally registered online.
  • the identity code includes any one or more of, for example, but not limited to, an ONU ID, an SN, a MAC address, a LOID, an LLID, and the like.
  • the ONU When the ONU saves the ONU identifier, the ONU sends a response message to the OLT, where the response message carries the identity code of the ONU, so that the OLT carries according to the response message.
  • the identity code determines that the ONU is a rogue ONU.
  • the PON MAC in the ONU is physically separated from the main processor, and the PON MAC can work independently.
  • the ONU upper layer software is abnormal or crashed, and the PON MAC can send a response message carrying the identity code of the ONU.
  • the ONU after the ONU is determined to be a rogue ONU, it also receives an OLT isolation message and stops responding to the OLT authorization, or the ONU further attempts to return to the normal state, Such as a reset operation.
  • the ONU after receiving the detection message of the OLT, the ONU reports the identity identification code to the OLT, so that the OLT determines that the ONU is a rogue ONU, and implements automatic detection and isolation of the SID-RONU, thereby improving detection efficiency and reducing the pair. The impact of normal business.
  • FIG. 6 is a schematic diagram showing the logical structure of an optical line terminal OLT according to an embodiment of the invention. As shown in FIG. 6, the OLT includes:
  • the optical network unit ONU state determining module 601 is configured to determine that the ONU is offline.
  • the detection message sending module 602 is configured to send a detection message carrying the ONU identifier to the ONU corresponding to the ONU identifier, where the ONU identifier is an ONU identifier occupied by the ONU before being offline and not re-allocated, the detection message And indicating that the ONU corresponding to the ONU identifier reports the identity code.
  • the response message receiving module 603 is configured to receive a response message, where the response message carries an identity code of an ONU that sends the response message.
  • the rogue ONU determining module 604 is configured to determine that the ONU corresponding to the identity code carried by the response message is a rogue ONU.
  • the method further includes an quarantine message sending module, configured to send an isolation message to the rogue ONU after determining that the ONU corresponding to the identity code carried by the response message is a rogue ONU, where the quarantine message indicates The rogue ONU stops responding to the OLT authorization.
  • an quarantine message sending module configured to send an isolation message to the rogue ONU after determining that the ONU corresponding to the identity code carried by the response message is a rogue ONU, where the quarantine message indicates The rogue ONU stops responding to the OLT authorization.
  • the OLT sends a detection message of the ONU identifier that is occupied by the ONU before the offline line is not re-allocated, and obtains the identity code of the ONU from the received response message, thereby determining the identity code corresponding to the ONU.
  • the ONU is a rogue ONU, which realizes automatic detection and isolation of SID-RONU, improves detection efficiency, and reduces the impact on normal business.
  • FIG. 7 is a schematic diagram showing the logical structure of an optical network unit ONU according to an embodiment of the invention.
  • the ONU includes:
  • the detection message receiving module 701 is configured to receive the detection message of the ONU identifier from the optical line terminal OLT after the ONU is offline, and the ONU identifier is an ONU identifier that is occupied by the ONU before being offline and not re-allocated.
  • the detection message indicates that the ONU corresponding to the ONU identifier reports the identity identification code.
  • the response message sending module 702 is configured to: when the ONU saves the ONU identifier, send a response message to the OLT, where the response message carries the identity code of the ONU, so that the OLT is configured according to the The identity code carried in the response message determines that the ONU is a rogue ONU.
  • the method further includes an isolation message receiving module, configured to: after the OLT determines that the ONU corresponding to the identity code carried by the response message is a rogue ONU, receive an isolation message from the OLT, where the isolation message indicates The rogue ONU stops responding to the OLT authorization.
  • an isolation message receiving module configured to: after the OLT determines that the ONU corresponding to the identity code carried by the response message is a rogue ONU, receive an isolation message from the OLT, where the isolation message indicates The rogue ONU stops responding to the OLT authorization.
  • the ONU after receiving the detection message of the OLT, the ONU reports the identity identification code to the OLT, so that the OLT determines that the ONU is a rogue ONU, and implements automatic detection and isolation of the SID-RONU, thereby improving detection efficiency and reducing the pair. The impact of normal business.
  • FIG. 8 is a schematic diagram showing the logical structure of a detection system of a rogue ONU according to an embodiment of the invention. As shown in FIG. 8, the system includes an optical line terminal OLT 801 and an optical network unit ONU 802.
  • the OLT 801 is configured to determine that the ONU 802 is offline, and sends a detection message carrying the ONU identifier to the ONU 802 corresponding to the ONU identifier, where the ONU identifier is an ONU identifier occupied by the ONU before being offline and not re-allocated.
  • the detecting message indicates that the ONU 802 corresponding to the ONU identifier reports the identity code;
  • the ONU 802 is configured to send a response message to the OLT 801 when the ONU 802 stores the ONU identifier, where the response message carries the identity code of the ONU 802.
  • the OLT 801 is configured to determine, according to the identity identification code carried in the response message, that the ONU 802 is a rogue ONU.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Signal Processing (AREA)
  • Computing Systems (AREA)
  • Small-Scale Networks (AREA)
  • Optical Communication System (AREA)

Abstract

本发明实施例公开了一种流氓光网络单元ONU的检测方法，包括：光线路终端OLT确定ONU下线，OLT发送携带ONU标识的检测消息给所述ONU标识对应的ONU，所述ONU标识为所述ONU下线之前所占用且未被重新分配的ONU标识，所述检测消息指示所述ONU标识对应的ONU上报身份标识码；所述OLT接收响应消息，所述响应消息携带发送所述响应消息的ONU的身份标识码；所述OLT确定所述响应消息携带的身份标识码对应的ONU为流氓ONU。通过以上技术方案，实现了一种新型流氓ONU的自动检测和隔离，提高了流氓ONU的检测效率，减少了对正常业务的影响。

Description

一种流氓光网络单元的检测方法、装置及系统 技术领域
本发明涉及通信领域，特别涉及一种流氓光网络单元的检测方法、装置及系统。
背景技术
在PON(passive optical network，无源光网络)中，一个局端的OLT(optical line terminal，光线路终端)对应一个以上ONU(optical network unit，光网络单元)或者ONT(optical network terminal，光网络终端)，由于ONT可以看成是一种特殊的ONU，本文以下统一使用ONU。
在下行方向上，OLT的下行信息统一通过一个固定的下行光波波长发送到所有ONU上；在上行方向上，所有的ONU按照时分复用上行光路带宽的规则，在特定的时隙发光，即ONU按照OLT的带宽分配指示上行发光，而流氓ONU就是不按照OLT的带宽分配指示发光的ONU。
流氓ONU的种类很多，从流氓ONU的发光时间来看，可以分为：
1)长发光流氓ONU
该类ONU任意时刻都在发光，当某个ONU长发光，将占用上行光波长的所有上行时隙，导致其它ONU无法上传信息和数据流，但此时下行还能正常下发信息和数据流。这种长发光流氓ONU的检测、排查和隔离手段很多，属于传统意义上的流氓ONU。
2)OLT授权范围内提前或者延迟发光的流氓ONU
在OLT授权的时间段内，可能提前发光，或者延迟关断等，导致影响到“邻近的”ONU。这种流氓ONU通过一定的手段能够进行有效的处理。
3)在OLT授权范围外乱发光，没有规律可循
这种流氓ONU具有随机性，检测、排查和隔离非常困难。
目前流氓ONU检测、排查和隔离技术的概括如下：各个厂家的整体解决方案互通性不强；部分流氓ONU检测和排查耗时长，业务中断时间长等。现有的流氓ONU检测技术，大部分通过OLT的“空闲时刻”是否收到光来判断是否有流氓ONU，这个“空闲时刻”可能是OLT专门测量流氓ONU的专用时间窗口，或者正常ONU授权外的空闲时刻。OLT通过空闲时刻是否有接收光来判断OLT下是否有流氓ONU，为了保证检测的准确性，一般都采用了多次检测并且反复确认的机制，这种方法能够识别长发光流氓ONU和OLT授权范围内提前或者延迟发光的流氓ONU。在完成流氓ONU识别的基础上，再进行流氓ONU的隔离。
同时，一些新型的流氓ONU还没有被认知到。本发明涉及的流氓ONU是一种新型的流氓ONU，故障时运营界面提示为系统中某个ONU ID(Identifier，标识)无法使用。这种新型的流氓ONU目前还没有被业界广泛认知，也没有比较好的处理方法，在高分光比的网络中，运营商仍然需要耗费较长的时间，在ODN上手动插拔光纤，然后观察OLT上ONU的上线行为来逐个排查流氓ONU，效率低下。
发明内容
有鉴于此，本发明实施例提供了一种流氓ONU的检测方法、装置及系统，以实现对一种新型流氓ONU的检测、排查和隔离。
第一方面，本发明实施例提供了一种流氓光网络单元ONU的检测方法，包括：光线路终端OLT确定ONU下线，OLT发送携带ONU标识的检测消息给所述ONU标识对应的ONU，所述ONU标识为所述ONU下线之前所占用且未被重新分配的ONU标识，所述检测消息指示所述ONU标识对应的ONU上报身份标识码；所述OLT接收响应消息，所述响应消息携带发送所述响应消息的ONU的身份标识码；所述OLT确定所述响应消息携带的身份标识码对应的ONU为流氓ONU。
结合第一方面的实现方式，在第一方面第一种可能的实现方式中，所述OLT以预设的时间间隔发送携带ONU标识的检测消息给所述ONU标识对应的ONU，当所述OLT确定所述响应消息携带的身份标识码对应的ONU为流氓ONU时，停止发送所述检测消息。
结合第一方面、或第一方面第一种可能的实现方式，在第一方面第二种可能的实现方式中，所述ONU标识为无源光网络PON中不能被正常使用的ONU标识。
结合第一方面、或第一方面第一种至第二种任一可能的实现方式，在第一方面第三种可能的实现方式中，所述OLT接收响应消息之后，还包括：所述OLT判断是否存在ONU使用所述ONU标识注册上线，当不存在ONU使用所述ONU标识注册上线时，所述OLT确定所述响应消息携带的身份标识码对应的ONU为流氓ONU。
结合第一方面、或第一方面第一种至第三种任一可能的实现方式，在第一方面第四种可能的实现方式中，所述OLT确定所述响应消息携带的身份标识码对应的ONU为流氓ONU之后，包括：所述OLT发送隔离消息给所述流氓ONU，所述隔离消息指示所述流氓ONU停止对所述OLT授权响应。
结合第一方面、或第一方面第一种至第四种任一可能的实现方式，在第一方面第五种可能的实现方式中，所述ONU标识包括ONU在周期性睡眠模式和/或打盹模式中下线之前所占用的ONU标识。
结合第一方面、或第一方面第一种至第五种任一可能的实现方式，在第一方面第六种可能的实现方式中，所述身份标识码包括序列号、媒体接入控制地址、逻辑链路标识、逻辑ONU标识、ONU标识中至少任意一种。
第二方面，本发明实施例提供了一种流氓光网络单元ONU的检测方法，包括：ONU下线后，接收来自光线路终端OLT的携带ONU标识的检测消息，所述ONU标识为所述ONU下线之前所占用且未被 重新分配的ONU标识，所述检测消息指示所述ONU标识对应的ONU上报身份标识码；当所述ONU保存有所述ONU标识时，所述ONU发送响应消息给所述OLT，所述响应消息中携带所述ONU的身份标识码，以便于所述OLT根据所述响应消息携带的身份标识码确定所述ONU为流氓ONU。
结合第二方面的实现方式，在第二方面第一种可能的实现方式中，所述ONU中，无源光网络PON媒体接入控制MAC与主处理器物理上和/或逻辑上分开，所述PON MAC不受主处理器的控制，发送所述响应消息给所述OLT。
结合第二方面、或第二方面第一种可能的实现方式，在第二方面第二种可能的实现方式中，所述ONU标识为无源光网络PON中不能被正常使用的ONU标识。
结合第二方面、或第二方面第一种至第二种任一可能的实现方式，在第二方面第三种可能的实现方式中，所述OLT根据所述响应消息携带的身份标识码确定所述ONU为流氓ONU之后，所述ONU接收来自所述OLT的隔离消息，所述隔离消息指示所述ONU停止对所述OLT授权响应。
结合第二方面、或第二方面第一种至第三种任一可能的实现方式，在第二方面第四种可能的实现方式中，所述ONU标识包括ONU在周期性睡眠模式和/或打盹模式中下线之前所占用的ONU标识。
结合第二方面、或第二方面第一种至第四种任一可能的实现方式，在第二方面第五种可能的实现方式中，所述身份标识码包括序列号、媒体接入控制地址、逻辑链路标识、逻辑ONU标识、ONU标识中至少任意一种。
第三方面，本发明实施例提供了一种光线路终端OLT，所述OLT包括：光网络单元ONU状态确定模块，用于确定ONU下线；检测消息发送模块，用于发送携带ONU标识的检测消息给所述ONU标识对 应的ONU，所述ONU标识为所述ONU下线之前所占用且未被重新分配的ONU标识，所述检测消息指示所述ONU标识对应的ONU上报身份标识码；响应消息接收模块，用于接收响应消息，所述响应消息携带发送所述响应消息的ONU的身份标识码；流氓ONU确定模块，用于确定所述响应消息携带的身份标识码对应的ONU为流氓ONU。
结合第三方面的实现方式，在第三方面第一种可能的实现方式中，所述检测消息发送模块，用于以预设的时间间隔发送携带ONU标识的检测消息给所述ONU标识对应的ONU，当所述确定所述响应消息携带的身份标识码对应的ONU为流氓ONU时，停止发送所述检测消息。
结合第三方面、或第三方面第一种可能的实现方式，在第三方面第二种可能的实现方式中，所述ONU标识为无源光网络PON中不能被正常使用的ONU标识。
结合第三方面、或第三方面第一种至第二种任一可能的实现方式，在第三方面第三种可能的实现方式中，所述流氓ONU确定模块，用于判断是否存在ONU使用所述ONU标识注册上线，当不存在ONU使用所述ONU标识注册上线时，确定所述响应消息携带的身份标识码对应的ONU为流氓ONU。
结合第三方面、或第三方面第一种至第三种任一可能的实现方式，在第三方面第四种可能的实现方式中，还包括：隔离消息发送模块，用于所述确定所述响应消息携带的身份标识码对应的ONU为流氓ONU之后，发送隔离消息给所述流氓ONU，所述隔离消息指示所述流氓ONU停止对所述OLT授权响应。
结合第三方面、或第三方面第一种至第四种任一可能的实现方式，在第三方面第五种可能的实现方式中，所述ONU标识包括ONU在周期性睡眠模式和/或打盹模式中下线之前所占用的ONU标识。
结合第三方面、或第三方面第一种至第五种任一可能的实现方式， 在第三方面第六种可能的实现方式中，所述身份标识码包括序列号、媒体接入控制地址、逻辑链路标识、逻辑ONU标识、ONU标识中至少任意一种。
第四方面，本发明实施例提供了一种光网络单元ONU，所述ONU包括：检测消息接收模块，用于所述ONU下线后，接收来自光线路终端OLT的携带ONU标识的检测消息，所述ONU标识为所述ONU下线之前所占用且未被重新分配的ONU标识，所述检测消息指示所述ONU标识对应的ONU上报身份标识码；响应消息发送模块，用于当所述ONU保存有所述ONU标识时，发送响应消息给所述OLT，所述响应消息中携带所述ONU的身份标识码，以便于所述OLT根据所述响应消息携带的身份标识码确定所述ONU为流氓ONU。
结合第四方面的实现方式，在第四方面第一种可能的实现方式中，还包括：无源光网络PON媒体接入控制MAC和主处理器，所述PON MAC与主处理器物理上和/或逻辑上分开，所述PON MAC不受主处理器的控制，发送所述响应消息给OLT。
结合第四方面、或第四方面第一种可能的实现方式，在第四方面第二种可能的实现方式中，所述ONU标识为无源光网络PON中不能被正常使用的ONU标识。
结合第四方面、或第四方面第一种至第二种任一可能的实现方式，在第四方面第三种可能的实现方式中，还包括：隔离消息接收模块，用于所述OLT根据所述响应消息携带的身份标识码确定所述ONU为流氓ONU之后，接收来自所述OLT的隔离消息，所述隔离消息指示所述ONU停止对所述OLT授权响应。
结合第四方面、或第四方面第一种至第三种任一可能的实现方式，在第四方面第四种可能的实现方式中，所述ONU标识包括ONU在周期性睡眠模式和/或打盹模式中下线之前所占用的ONU标识。
结合第四方面、或第四方面第一种至第四种任一可能的实现方式， 在第四方面第五种可能的实现方式中，所述身份标识码包括序列号、媒体接入控制地址、逻辑链路标识、逻辑ONU标识、ONU标识中至少任意一种。
第五方面，本发明实施例提供了一种流氓光网络单元ONU的检测系统，其特征在于，包括：光线路终端OLT和ONU，所述OLT，用于确定ONU下线，发送携带ONU标识的检测消息给所述ONU标识对应的ONU，所述ONU标识为所述ONU下线之前所占用且未被重新分配的ONU标识，所述检测消息指示所述ONU标识对应的ONU上报身份标识码；所述ONU，用于当所述ONU保存有所述ONU标识时，发送响应消息给所述OLT，所述响应消息中携带所述ONU的身份标识码；所述OLT，用于根据所述响应消息携带的身份标识码确定所述ONU为流氓ONU。
结合第五方面的实现方式，在第五方面第一种可能的实现方式中，所述OLT，用于以预设的时间间隔发送携带ONU标识的检测消息给所述ONU标识对应的ONU，当所述确定所述响应消息携带的身份标识码对应的ONU为流氓ONU时，停止发送所述检测消息。
结合第五方面、或第五方面第一种可能的实现方式，在第五方面第二种可能的实现方式中，所述ONU中，无源光网络PON媒体接入控制MAC与主处理器物理上和/或逻辑上分开，所述PON MAC不受主处理器的控制，发送所述响应消息给所述OLT。
结合第五方面、或第五方面第一种至第二种任一可能的实现方式，在第五方面第三种可能的实现方式中，所述ONU标识为无源光网络PON中不能被正常使用的ONU标识。
结合第五方面、或第五方面第一种至第三种任一可能的实现方式，在第五方面第四种可能的实现方式中，所述OLT，用于判断是否存在ONU使用所述ONU标识注册上线，当不存在ONU使用所述ONU标识注册上线时，确定所述响应消息携带的身份标识码对应的ONU为流 氓ONU。
结合第五方面、或第五方面第一种至第四种任一可能的实现方式，在第五方面第五种可能的实现方式中，所述OLT，用于所述确定所述响应消息携带的身份标识码对应的ONU为流氓ONU之后，发送隔离消息给所述流氓ONU，所述隔离消息指示所述流氓ONU停止对所述OLT授权响应。
结合第五方面、或第五方面第一种至第五种任一可能的实现方式，在第五方面第六种可能的实现方式中，所述ONU标识包括ONU在周期性睡眠模式和/或打盹模式中下线之前所占用的ONU标识。
结合第五方面、或第五方面第一种至第六种任一可能的实现方式，在第五方面第七种可能的实现方式中，所述身份标识码包括序列号、媒体接入控制地址、逻辑链路标识、逻辑ONU标识、ONU标识中至少任意一种。
第六方面，一种光线路终端OLT，包括：处理器、存储器、总线和通信接口；存储器用于存储计算机执行指令，处理器与存储器通过总线连接，当计算机运行时，处理器执行存储器存储的计算机执行指令，以使计算机执行如第一方面及第一方面的任意一种可能的实现方式所述的方法。
第七方面，一种光网络单元ONU，包括：处理器、存储器、总线和通信接口；存储器用于存储计算机执行指令，处理器与存储器通过总线连接，当计算机运行时，处理器执行存储器存储的计算机执行指令，以使计算机执行如第二方面及第二方面的任意一种可能的实现方式所述的方法。
根据本发明实施例提供的技术方案，OLT确定ONU下线，获得ONU下线之前所占用且未被重新分配的ONU标识，发送携带ONU标识的检测消息给ONU标识对应的ONU，当ONU下线后还保留ONU标识时，收到检测消息后反馈身份标识码，OLT获得身份标识码后能快 速定位流氓ONU并进行隔离，本发明实施例提供的技术方案实现了一种新型流氓ONU的自动检测和隔离，提高了流氓ONU的检测效率，减少了对正常业务的影响。
附图说明
为了更清楚地说明本发明的实施例或现有技术中的技术方案，下面将对描述实施例时所使用的附图作简单的介绍。显而易见地，下面附图中描述的仅仅是本发明的一部分实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图和描述得到其他的附图或实施例，而本发明旨在涵盖所有这些衍生的附图或实施例。
图1是PON的网络架构示意图；
图2是ONU的逻辑结构示意图；
图3是实现本发明实施例的一种流氓ONU的检测方法的信令交互图；
图4是实现本发明实施例的一种流氓ONU的检测方法的示范性流程图；
图5是实现本发明实施例的一种流氓ONU的检测方法的示范性流程图；
图6是实现本发明实施例的一种光线路终端OLT的逻辑结构示意图；
图7是实现本发明实施例的一种光网络单元ONU的逻辑结构示意图；
图8是实现本发明实施例一种流氓ONU的检测系统的逻辑结构示意图。
具体实施方式
为了使本发明的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本发明进行进一步详细说明。应当理解，此处所描 述的具体实施例仅仅用以解释本发明，并不用于限定本发明。显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
实施例一
PON技术是一种点对多点(P2MP，point to multi-point)方式的光接入技术，由OLT、无源分光器POS(Passive Optical Splitter)、ONU和光纤组成，其中，系统中任意两点通过光纤连接(OLT与POS之间、两级POS之间、POS与ONU之间)。
如图1所示，在OLT下的第二级分光器下，如果ONU41出现异常，例如软件崩溃或软件异常，或者ONU41软件的注册上线模块异常等，表现为：OLT认为ONU41下线，但ONU41仍然保留其ONU ID为25(以ONU ID为25为例)等信息，并且能够持续地响应OLT下行针对ONU ID为25的DBA(Dynamic Bandwidth Assignment，动态带宽分配)授权，此时ONU41变成了流氓ONU。如果ONU41处于异常状态无法故障自恢复时，OLT下的处于正常状态的ONU16尝试使用ONU ID为25在OLT下注册上线，由于受ONU41的影响，ONU16会出现无法注册上线的情况。因为OLT在给ONU ID为25的ONU分配带宽时，在ONU ID为25的时序内，OLT会同时收到ONU41和ONU16发送来的报文，这两束光在同一时序内“碰撞”，产生OLT无法正常定界的上行帧/报文。该现象在OLT和上层网管上表现为：OLT某个端口下，一个特定的ONU ID无法使用，处于正常状态的ONU使用该ONU ID无法正常注册上线。由于ONU41只影响特定ONU ID，我们称它为SID-RONU(Special ONU ID’s Rouge ONU，特定ONU ID的流氓ONU)，该ONU为影响特定ONU ID的流氓ONU，是一种新型的流氓ONU，目前这种流氓ONU的排查相当困难，需要在ODN上，通过逐个插拔光纤，然后观察OLT上ONU上线行为来排查。
如图2所示，ONU200包括CPU(Central Processing Unit，中央处理器)201、存储器202、光模块203、PON MAC204和业务转发逻辑205。其中，CPU201通过运行存储于存储器202的程序代码，实现对PON MAC204和业务转发逻辑205的控制。光模块203用来接收或发送光信号。PON MAC204是指一种能够处理GPON(Gigabit-Capable Passive Optical Network，千兆无源光网络)、XGPON、EPON(Ethernet Passive Optical Network，以太网无源光网络)、10GEPON等PON协议的装置，以GPON为例，PON MAC204能够处理GPON协议中PMD(Physical Medium Dependent，物理介质关联层)和TC(Transition Convergence，传输汇聚层)层数据，一般采用ASCI(Application Specific Integrated Circuits，专用集成电路)芯片来实现。转发逻辑205用于对二层业务进行转发处理。
本发明实施例的前提条件是：ONU中的PON MAC和ONU上层软件分离，即PON MAC不受CPU的控制，独立地工作，在ONU上层软件出现异常的情况下，PON MAC能够响应OLT的DBA授权，捕获报文，解析报文，并且能够发送回应报文。
本发明实施例中，OLT针对ONU下线之前所占用且未被重新分配的ONU ID进行DBA授权，当存在至少一个ONU下线之前所占用且未被重新分配的ONU ID时，可以对每个ONU ID逐一地授权，并且分别对每个ONU ID对应的ONU以预设的时间间隔至少一次地发送检测消息；如果存在SID-RONU，则SID-RONU收到检测消息后，在DBA授权的时序内发送携带身份标识码的响应消息；OLT从响应消息中获得ONU的身份标识码，由于身份标识码能够唯一标示ONU的身份信息，OLT能够确定获得的ONU身份标识码对应的ONU为流氓ONU；此时，OLT针对该流氓ONU下发隔离消息，通知流氓ONU自行隔离，或者可以根据流氓ONU的身份标识码准确地知道该流氓ONU的具体位置，对流氓ONU进行手动排查。具体地，ONU的身份标识码可以是系统 配置的，也可以是光模块的产品编码，具体可以包括但不限于以下至少任意一个的组合：SN(Serial Number，序列号)、MAC(Media Access Control，媒体接入控制)地址、LLID(Logical Link Identifier，逻辑链路标识)、LOID(Logical ONU Identifier，逻辑ONU标识)、ONU ID(ONU Identifier，ONU标识)。
实施例二
图3是依据本发明一实施例的一种流氓ONU的检测方法信令交互图。如图3所示，以ONU ID/LLID为25为例，使用ONU ID/LLID 25上线的ONU定义为ONU25。
S301：ONU25上保存标示ONU25的身份标识码。
ONU25上电启动后，ONU25PON MAC从ONU25软件中获得并保存标示ONU25的身份标识码。ONU25的身份标识码包括但不限于以下至少任意一个的组合：SN、MAC地址、LLID、LOID、ONU ID。SN为出厂前写入芯片中的，该序列号全球唯一；MAC地址在标准中用来定义网络设备的位置，MAC地址全球唯一；LLID是EPON系统分配给逻辑链接的一种数字标识，每一个逻辑链接都会分配到不同的LLID；LOID用于标识ONU的位置等信息，方便运维；ONU ID为ITU-T(ITU Telecommunication Standardization Sector，国际电信联盟远程通信标准化组)GPON/XGPON标准定义的，OLT对注册的ONU分配的，用于标识某个特定的ONU。当不存在SID-RONU时，与同一个OLT连接的各个ONU，其身份标识码均不同，以区别各个ONU。
S302：OLT授权ONU25注册。
ONU在OLT授权下，注册上线。例如，在EPON系统中，OLT和ONU之间完成MPCP(Multi-Point Control Protocol，多点控制协议)过程，进入OAM(Operation Administration and Maintenance，操作管理和维护)扩展发现过程。
S303：ONU25注册上线。
在OLT授权的情况下，ONU25成功注册上线。
S304：OLT和ONU25之间授权和同步。
具体地，OLT通过ONU ID/LLID为25等信息对ONU25进行DBA授权和管理。
S305：ONU25软件异常。
ONU25在某些情况下出现异常，如ONU无法复位或者上层软件“吊死”。软件“吊死”指的是软件崩溃或软件异常，出现这种情况后，软件系统对外表现为进程、任务等调度异常，部分功能无法使用，系统长时间不响应外部服务和请求等现象。如果ONU25的PON MAC仍然保留ONU ID/LLID为25等信息，并且能够响应OLT针对ONU ID/LLID为25的DBA授权，此时ONU25表现为SID-RONU。
S306：OLT收到错误报文，OLT认为ONU25下线。
由于ONU25出现异常，OLT收到ONU25的错误报文，通过现有标准中的同步机制，检测到ONU下线，将ONU25设置为离线状态。
S307：OLT针对ONU ID/LLID为25的ONU进行DBA授权，下发检测消息。
OLT针对一个或多个ONU下线之前所占用且未被重新分配的ONU ID进行DBA授权，发送检测消息，本实施例中仅以ONU ID为25为例。此时OLT不能确定ONU25是否正常下线，即ONU25是否为SID-RONU，需要进一步检测确定ONU25是否变为SID-RONU。由于ONU25使用ONU ID/LLID为25等信息上线，在OLT上有记录，则OLT可以针对ONU下线之前所占用且未被重新分配的ONU ID/LLID，例如ONU ID/LLID为25的ONU进行DBA授权，下发检测消息。
在GPON中，OLT给ONU25发送的检测消息可以为扩展的PLOAM(Physical Layer Operations，Administration and Maintenance物理层操作管理和维护)消息，通过PLOAM消息的扩展字段来指示该消息为SID-RONU检测消息，其中，扩展字段的值为自定义。
在EPON中，OLT给ONU25发送的检测消息可以为扩展的OAM消息。具体地，该消息中的扩展操作码表示该消息为OLT向ONU发送的Extended Variable Request消息，OAM消息中Branch字段和Leaf字段表示该消息的属性为私有扩展。OAM消息中的扩展查询码字段指示该消息为SID-RONU检测消息，例如，查询码的值设置为非0整数时，该消息用于查询SID-RONU的身份标识码。可选的，消息中还携带扩展查询码字段的字节长度。
S308：OLT接收ONU ID/LLID为25的ONU的DBA响应消息，捕获ONU的身份标识码。
ONU25收到检测消息后，如果ONU25为SID-RONU时，ONU25的PON MAC在OLT的DBA授权时序内将ONU25的身份识别码发送出去。OLT收到ONU25的DBA响应消息后，能够确定出系统中存在SID-RONU，并且尝试捕获该SID-RONU的身份标识码。具体实施过程中，还可能有其他一个或多个ONU变为SID-RONU，此处仅以ONU25为例。
在GPON中，OLT接收ONU的响应消息可以通过扩展的PLOAM消息实现。具体地，可以通过PLOAM消息的扩展字段携带ONU的身份标识码，例如但不限于ONU ID、SN、MAC地址、LOID、LLID等。该消息还携带CRC(Cyclic Redundancy Check，循环冗余校验码)，用于对报文内容进行校验。
在EPON中，OLT接收ONU的响应消息可以通过扩展的OAM消息实现。具体地，该消息中的扩展操作码表示该消息为ONU向OLT发送的Extended Variable Response消息，OAM消息中Branch字段和Leaf字段表示该消息的属性为私有扩展。并且，响应消息中，Branch字段和Leaf字段的值和SID-RONU检测消息的值是一致的，表明该消息是针对SID-RONU检测消息的响应消息。类似地，OAM消息通过扩展字段携带ONU的身份标识码，例如但不限于ONU ID、SN、MAC地址、 LOID、LLID等。可选的，消息中还携带扩展字段的字节长度。
重复步骤S307和S308，直到捕获到ONU25的身份标识码。
此时，如果有其他的ONU尝试使用ONU ID/LLID为25上线，OLT和ONU之间会出现ONU ID/LLID为25的上行光时序重叠的可能，并不能保证OLT每次接收ONU25的DBA响应消息后都能捕获到ONU25的身份标识码，需要OLT多次下发检测消息，直到收到带有ONU25身份识别码的DBA响应消息为止。
S309：OLT上报告警。
OLT捕获到ONU25的身份识别码后，上报告警，以通知网络管理员系统中产生了SID-RONU故障。
S310：OLT对ONU25下发隔离消息。
当OLT获得ONU25的身份标识码之后，确定ONU25为SID-RONU，对ONU25下发隔离消息。或者，OLT获得ONU25的身份标识码后，确定出ONU25的具体位置，对ONU25进行手动排查。
S311：ONU25接收隔离消息，停止DBA授权响应，或者复位ONU25的PON MAC。
ONU25收到隔离消息后，立即停止针对ONU ID/LLID为25的ONU的DBA授权响应，并尝试恢复为正常状态，如复位PON MAC等。
本实施例中，OLT针对ONU下线之前所占用且未被重新分配的ONU标识进行DBA授权，发送检测消息，并且从ONU的响应消息中获得ONU的身份标识码并确定该ONU的身份标识码对应的ONU为流氓ONU，有效地解决了SID-RONU的故障问题，实现对SID-RONU的自动检测和隔离，提高了检测效率，减少了对正常业务的影响。
实施例三
图4是依据本发明一实施例的流氓ONU的检测方法的示范性流程图。具体实施过程中，该方法可以由光线路终端OLT来执行，包括如下步骤：
S401：光线路终端OLT确定ONU下线，OLT发送携带ONU标识的检测消息给所述ONU标识对应的ONU，所述ONU标识为所述ONU下线之前所占用且未被重新分配的ONU标识，所述检测消息指示所述ONU标识对应的ONU上报身份标识码。
ONU处于正常上线状态时，如果出现软件异常或软件崩溃等情况，会导致OLT收到错误报文，认为该ONU下线，此时，该ONU可能仍然不释放其ONU ID等信息，导致该ONU变为SID-RONU。此时OLT将该ONU设置为离线状态，但并不能确定该ONU是否正常下线，或者是否变为SID-RONU，因此，OLT确定ONU下线后，发送携带ONU标识的检测消息给ONU标识对应的ONU，来指示ONU标识对应的ONU上报身份标识码。具体地，检测消息为非广播消息，检测消息携带的ONU标识为ONU下线之前所占用且未被重新分配的ONU标识，ONU标识对应的ONU具体为下线之前使用该ONU标识上线的ONU。
具体地，ONU处于正常上线状态包括节能模式，具体包括周期性睡眠模式和打盹模式。
可选地，还可以在无源光网络中有ONU标识不能被正常使用时，OLT发送携带ONU标识的检测消息给ONU标识对应的ONU，来指示ONU标识对应的ONU上报身份标识码，其中，检测消息携带的ONU标识为不能被正常使用的ONU标识，具体为ONU标识不能被分配给正常注册上线的ONU。
具体地，ONU的身份标识码但不限于ONU ID、SN、MAC地址、LOID、LLID等任意一个或多个。
S402：所述OLT接收响应消息，所述响应消息携带发送所述响应消息的ONU的身份标识码。
可选地，并不能保证每次OLT接收到响应消息后都能成功获得发送响应消息的ONU的身份标识码，因此，OLT以预设的时间间隔至少一次地发送检测消息给ONU，可以是周期性地发送。当OLT从响应消 息中获得响应消息携带的ONU的身份标识码时，停止发送检测消息。
S403：所述OLT确定所述响应消息携带的身份标识码对应的ONU为流氓ONU。
具体实施过程中，有可能存在一个或多个ONU变为SID-RONU，因此需要获取每一个SID-RONU的身份标识码，对每一个SID-RONU进行排查和隔离。当OLT接收到一个或多个SID-RONU的响应消息时，每个响应消息携带发送该响应消息的ONU的身份标识码。
具体实施过程中，当ONU下线之前所占用且未被重新分配的ONU ID同时被某个ONU使用尝试注册上线和被SID-RONU所保留时，此时OLT发送携带该ONU ID的检测消息，OLT会同时收到尝试注册上线的ONU和SID-RONU发送的携带身份标识码的响应消息，此时OLT不能准确判断出哪一个是SID-RONU。可选地，则OLT在收到响应消息之后，还需判断是否存在ONU使用检测消息携带的ONU标识注册上线，当不存在ONU使用检测消息携带的ONU标识注册上线时，OLT确定响应消息携带的身份标识码对应的ONU为流氓ONU。
可选地，当OLT确定响应消息携带的ONU的身份标识码对应的ONU为流氓ONU后，下发隔离消息给对应的流氓ONU，使流氓ONU停止对OLT授权响应；或者，还可以通过ONU的身份标识码确定流氓ONU的具体位置，进行手动排查。
本实施例中，OLT发送携带ONU下线之前所占用且未被重新分配的ONU标识的检测消息，从接收到的响应消息中获取ONU的身份标识码，从而确定该ONU的身份标识码对应的ONU为流氓ONU，实现对SID-RONU的自动检测和隔离，提高了检测效率，减少了对正常业务的影响。
实施例四
图5是依据本发明一实施例的流氓ONU的检测方法的示范性流程图。该方法可以由光网络单元ONU来执行，包括如下步骤：
S501：所述ONU下线后，接收来自光线路终端OLT的携带ONU标识的检测消息，所述ONU标识为所述ONU下线之前所占用且未被重新分配的ONU标识，所述检测消息指示所述ONU标识对应的ONU上报身份标识码。
具体实施过程中，ONU处于正常上线状态时，由于出现软件异常或软件崩溃等情况，导致OLT认为ONU下线，但ONU仍保留ONU ID不释放，因此，ONU仍然能够响应OLT针对自身保留ONU ID的DBA授权，接收携带ONU标识的检测消息，其中检测消息携带的ONU标识为ONU下线之前所占用且未被重新分配的ONU标识。
具体地，ONU处于正常上线状态包括节能模式，具体包括周期性睡眠模式和打盹模式。
可选地，还可以在无源光网络中有ONU标识不能被正常使用时，ONU标识对应的ONU接收来自OLT的检测消息，用来指示ONU标识对应的ONU上报身份标识码，其中，检测消息携带的ONU标识为不能被正常使用的ONU标识，具体为ONU标识不能被分配给正常注册上线的ONU。
具体地，身份标识码包括例如但不限于ONU ID、SN、MAC地址、LOID、LLID等任意一个或多个。
S502：当所述ONU保存有所述ONU标识时，所述ONU发送响应消息给所述OLT，所述响应消息中携带所述ONU的身份标识码，以便于所述OLT根据所述响应消息携带的身份标识码确定所述ONU为流氓ONU。
具体实施过程中，ONU中的PON MAC与主处理器物理上分开，PON MAC能够独立工作，即时ONU上层软件出现异常或崩溃，PON MAC能够发送携带所述ONU的身份标识码的响应消息。
可选地，ONU被确定为流氓ONU后，还接收来自OLT隔离消息，并且停止对OLT授权响应，或者ONU更进一步尝试恢复到正常状态， 如进行复位操作等。
本实施例中，ONU在接收到OLT的检测消息后，上报身份标识码给OLT，使OLT确定该ONU为流氓ONU，实现对SID-RONU的自动检测和隔离，提高了检测效率，减少了对正常业务的影响。
实施例五
图6是依据本发明一实施例的光线路终端OLT的逻辑结构示意图。如图6所示，OLT包括：
光网络单元ONU状态确定模块601，用于确定ONU下线。
检测消息发送模块602，用于发送携带ONU标识的检测消息给所述ONU标识对应的ONU，所述ONU标识为所述ONU下线之前所占用且未被重新分配的ONU标识，所述检测消息指示所述ONU标识对应的ONU上报身份标识码。
响应消息接收模块603，用于接收响应消息，所述响应消息携带发送所述响应消息的ONU的身份标识码。
流氓ONU确定模块604，用于确定所述响应消息携带的身份标识码对应的ONU为流氓ONU。
可选地，还可以包括隔离消息发送模块，用于所述确定所述响应消息携带的身份标识码对应的ONU为流氓ONU之后，发送隔离消息给所述流氓ONU，所述隔离消息指示所述流氓ONU停止对所述OLT授权响应。
本实施例中，OLT发送携带ONU下线之前所占用且未被重新分配的ONU标识的检测消息，从接收到的响应消息中获取ONU的身份标识码，从而确定该ONU的身份标识码对应的ONU为流氓ONU，实现对SID-RONU的自动检测和隔离，提高了检测效率，减少了对正常业务的影响。
实施例六
图7是依据本发明一实施例的光网络单元ONU的逻辑结构示意 图。如图7所示，ONU包括：
检测消息接收模块701，用于所述ONU下线后，接收来自光线路终端OLT的携带ONU标识的检测消息，所述ONU标识为所述ONU下线之前所占用且未被重新分配的ONU标识，所述检测消息指示所述ONU标识对应的ONU上报身份标识码。
响应消息发送模块702，用于当所述ONU保存有所述ONU标识时，发送响应消息给所述OLT，所述响应消息中携带所述ONU的身份标识码，以便于所述OLT根据所述响应消息携带的身份标识码确定所述ONU为流氓ONU。
可选地，还包括隔离消息接收模块，用于所述OLT确定所述响应消息携带的身份标识码对应的ONU为流氓ONU之后，接收来自所述OLT的隔离消息，所述隔离消息指示所述流氓ONU停止对所述OLT授权响应。
本实施例中，ONU在接收到OLT的检测消息后，上报身份标识码给OLT，使OLT确定该ONU为流氓ONU，实现对SID-RONU的自动检测和隔离，提高了检测效率，减少了对正常业务的影响。
实施例七
图8是依据本发明一实施例的流氓ONU的检测系统的逻辑结构示意图。如图8所示，该系统包括光线路终端OLT801和光网络单元ONU802。
所述OLT801，用于确定ONU802下线，发送携带ONU标识的检测消息给所述ONU标识对应的ONU802，所述ONU标识为所述ONU下线之前所占用且未被重新分配的ONU标识，所述检测消息指示所述ONU标识对应的ONU802上报身份标识码；
所述ONU802，用于当所述ONU802保存有所述ONU标识时，发送响应消息给所述OLT801，所述响应消息中携带所述ONU802的身份标识码；
所述OLT801，用于根据所述响应消息携带的身份标识码确定所述ONU802为流氓ONU。
本发明实施例中仅仅以GPON协议和EPON协议为例进行说明，但不限于此，随着网络的演进，网络中可能会其他类型的协议，也都可以采用本发明的技术方案，或者本发明实施例也可以不遵循标准协议来实现检测SID-RONU的故障问题。因此，本发明要求保护的范围不受具体消息格式的限制。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本发明的范围。
以上所述，仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应所述以权利要求的保护范围为准。
以上所述仅为本发明的几个实施例，本领域的技术人员依据申请文件公开的可以对本发明进行各种改动或变型而不脱离本发明的精神和范围。

Claims (36)

  1. 一种流氓光网络单元ONU的检测方法，其特征在于，所述方法包括：
    光线路终端OLT确定ONU下线，OLT发送携带ONU标识的检测消息给所述ONU标识对应的ONU，所述ONU标识为所述ONU下线之前所占用且未被重新分配的ONU标识，所述检测消息指示所述ONU标识对应的ONU上报身份标识码；
    所述OLT接收响应消息，所述响应消息携带发送所述响应消息的ONU的身份标识码；
    所述OLT确定所述响应消息携带的身份标识码对应的ONU为流氓ONU。
  2. 如权利要求1所述的方法，其特征在于，所述OLT以预设的时间间隔发送携带ONU标识的检测消息给所述ONU标识对应的ONU，当所述OLT确定所述响应消息携带的身份标识码对应的ONU为流氓ONU时，停止发送所述检测消息。
  3. 如权利要求1所述的方法，其特征在于，其中：
    所述ONU标识为无源光网络PON中不能被正常使用的ONU标识。
  4. 如权利要求1所述的方法，其特征在于，所述OLT接收响应消息之后，还包括：
    所述OLT判断是否存在ONU使用所述ONU标识注册上线，当不存在ONU使用所述ONU标识注册上线时，所述OLT确定所述响应消息携带的身份标识码对应的ONU为流氓ONU。
  5. 如权利要求1-4任一所述的方法，其特征在于，所述OLT确定所述响应消息携带的身份标识码对应的ONU为流氓ONU之后，包括：
    所述OLT发送隔离消息给所述流氓ONU，所述隔离消息指示所述流氓ONU停止对所述OLT授权响应。
  6. 如权利要求1所述的方法，其特征在于，所述ONU标识包括 ONU在周期性睡眠模式和/或打盹模式中下线之前所占用的ONU标识。
  7. 如权利要求1-6任一所述的方法，其特征在于，所述身份标识码包括序列号、媒体接入控制地址、逻辑链路标识、逻辑ONU标识、ONU标识中至少任意一种。
  8. 一种流氓光网络单元ONU的检测方法，其特征在于，所述方法包括：
    ONU下线后，接收来自光线路终端OLT的携带ONU标识的检测消息，所述ONU标识为所述ONU下线之前所占用且未被重新分配的ONU标识，所述检测消息指示所述ONU标识对应的ONU上报身份标识码；
    当所述ONU保存有所述ONU标识时，所述ONU发送响应消息给所述OLT，所述响应消息中携带所述ONU的身份标识码，以便于所述OLT根据所述响应消息携带的身份标识码确定所述ONU为流氓ONU。
  9. 如权利要求8所述的方法，其特征在于，包括：
    所述ONU中，无源光网络PON媒体接入控制MAC与主处理器物理上和/或逻辑上分开，所述PON MAC不受主处理器的控制，发送所述响应消息给所述OLT。
  10. 如权利要求8所述的方法，其特征在于，其中：
    所述ONU标识为无源光网络PON中不能被正常使用的ONU标识。
  11. 如权利要求8-10任一所述的方法，其特征在于，所述OLT根据所述响应消息携带的身份标识码确定所述ONU为流氓ONU之后，还包括：
    所述ONU接收来自所述OLT的隔离消息，所述隔离消息指示所述ONU停止对所述OLT授权响应。
  12. 如权利要求8所述的方法，其特征在于，所述ONU标识包括ONU在周期性睡眠模式和/或打盹模式中下线之前所占用的ONU标识。
  13. 如权利要求8-12任一所述的方法，其特征在于，所述身份标 识码包括序列号、媒体接入控制地址、逻辑链路标识、逻辑ONU标识、ONU标识中至少任意一种。
  14. 一种光线路终端OLT，其特征在于，所述OLT包括：
    光网络单元ONU状态确定模块，用于确定ONU下线；
    检测消息发送模块，用于发送携带ONU标识的检测消息给所述ONU标识对应的ONU，所述ONU标识为所述ONU下线之前所占用且未被重新分配的ONU标识，所述检测消息指示所述ONU标识对应的ONU上报身份标识码；
    响应消息接收模块，用于接收响应消息，所述响应消息携带发送所述响应消息的ONU的身份标识码；
    流氓ONU确定模块，用于确定所述响应消息携带的身份标识码对应的ONU为流氓ONU。
  15. 如权利要求14所述的OLT，其特征在于，其中：
    所述检测消息发送模块，用于以预设的时间间隔发送携带ONU标识的检测消息给所述ONU标识对应的ONU，当所述确定所述响应消息携带的身份标识码对应的ONU为流氓ONU时，停止发送所述检测消息。
  16. 如权利要求14所述的OLT，其特征在于，其中：
    所述ONU标识为无源光网络PON中不能被正常使用的ONU标识。
  17. 如权利要求14所述的OLT，其特征在于，其中：
    所述流氓ONU确定模块，用于判断是否存在ONU使用所述ONU标识注册上线，当不存在ONU使用所述ONU标识注册上线时，确定所述响应消息携带的身份标识码对应的ONU为流氓ONU。
  18. 如权利要求14-17任一所述的OLT，其特征在于，还包括：
    隔离消息发送模块，用于所述确定所述响应消息携带的身份标识码对应的ONU为流氓ONU之后，发送隔离消息给所述流氓ONU，所述隔离消息指示所述流氓ONU停止对所述OLT授权响应。
  19. 如权利要求14所述的OLT，其特征在于，所述ONU标识包括ONU在周期性睡眠模式和/或打盹模式中下线之前所占用的ONU标识。
  20. 如权利要求14-19所述的OLT，其特征在于，所述身份标识码包括序列号、媒体接入控制地址、逻辑链路标识、逻辑ONU标识、ONU标识中至少任意一种。
  21. 一种光网络单元ONU，其特征在于，所述ONU包括：
    检测消息接收模块，用于ONU下线后，接收来自光线路终端OLT的携带ONU标识的检测消息，所述ONU标识为所述ONU下线之前所占用且未被重新分配的ONU标识，所述检测消息指示所述ONU标识对应的ONU上报身份标识码；
    响应消息发送模块，用于当所述ONU保存有所述ONU标识时，发送响应消息给所述OLT，所述响应消息中携带所述ONU的身份标识码，以便于所述OLT根据所述响应消息携带的身份标识码确定所述ONU为流氓ONU。
  22. 如权利要求21所述的ONU，其特征在于，还包括：
    无源光网络PON媒体接入控制MAC和主处理器，所述PON MAC与主处理器物理上和/或逻辑上分开，所述PON MAC不受主处理器的控制，发送所述响应消息给OLT。
  23. 如权利要求21所述的ONU，其特征在于，其中：
    所述ONU标识为无源光网络PON中不能被正常使用的ONU标识。
  24. 如权利要求21-23任一所述的ONU，其特征在于，还包括：
    隔离消息接收模块，用于所述OLT根据所述响应消息携带的身份标识码确定所述ONU为流氓ONU之后，接收来自所述OLT的隔离消息，所述隔离消息指示所述ONU停止对所述OLT授权响应。
  25. 如权利要求21所述的ONU，其特征在于，所述ONU标识包括ONU在周期性睡眠模式和/或打盹模式中下线之前所占用的ONU标识。
  26. 如权利要求21-25任一所述的ONU，其特征在于，所述身份标识码包括序列号、媒体接入控制地址、逻辑链路标识、逻辑ONU标识、ONU标识中至少任意一种。
  27. 一种流氓光网络单元ONU的检测系统，其特征在于，包括：光线路终端OLT和ONU，
    所述OLT，用于确定ONU下线，发送携带ONU标识的检测消息给所述ONU标识对应的ONU，所述ONU标识为所述ONU下线之前所占用且未被重新分配的ONU标识，所述检测消息指示所述ONU标识对应的ONU上报身份标识码；
    所述ONU，用于当所述ONU保存有所述ONU标识时，发送响应消息给所述OLT，所述响应消息中携带所述ONU的身份标识码；
    所述OLT，用于根据所述响应消息携带的身份标识码确定所述ONU为流氓ONU。
  28. 如权利要求27所述的系统，其特征在于，其中：
    所述OLT，用于以预设的时间间隔发送携带ONU标识的检测消息给所述ONU标识对应的ONU，当所述确定所述响应消息携带的身份标识码对应的ONU为流氓ONU时，停止发送所述检测消息。
  29. 如权利要求27所述的系统，其特征在于，其中：
    所述ONU中，无源光网络PON媒体接入控制MAC与主处理器物理上和/或逻辑上分开，所述PON MAC不受主处理器的控制，发送所述响应消息给所述OLT。
  30. 如权利要求27所述的系统，其特征在于，其中：
    所述ONU标识为无源光网络PON中不能被正常使用的ONU标识。
  31. 如权利要求27所述的系统，其特征在于，其中：
    所述OLT，用于判断是否存在ONU使用所述ONU标识注册上线，当不存在ONU使用所述ONU标识注册上线时，确定所述响应消息携带的身份标识码对应的ONU为流氓ONU。
  32. 如权利要求27-31任一所述的系统，其特征在于，其中：
    所述OLT，用于所述确定所述响应消息携带的身份标识码对应的ONU为流氓ONU之后，发送隔离消息给所述流氓ONU，所述隔离消息指示所述流氓ONU停止对所述OLT授权响应。
  33. 如权利要求17所述的系统，其特征在于，所述ONU标识包括ONU在周期性睡眠模式和/或打盹模式中下线之前所占用的ONU标识。
  34. 如权利要求17-33任一所述的系统，其特征在于，所述身份标识码包括序列号、媒体接入控制地址、逻辑链路标识、逻辑ONU标识、ONU标识中至少任意一种。
  35. 一种光线路终端OLT，其特征在于，包括：处理器、存储器、总线和通信接口；所述存储器用于存储计算机执行指令，所述处理器与所述存储器通过所述总线连接，当所述计算机运行时，所述处理器执行所述存储器存储的所述计算机执行指令，以使所述计算机执行如权利要求1～7任意一项所述的方法。
  36. 一种光网络单元ONU，其特征在于，包括：处理器、存储器、总线和通信接口；所述存储器用于存储计算机执行指令，所述处理器与所述存储器通过所述总线连接，当所述计算机运行时，所述处理器执行所述存储器存储的所述计算机执行指令，以使所述计算机执行如权利要求8～13任意一项所述的方法。
PCT/CN2014/093820 2014-12-15 2014-12-15 一种流氓光网络单元的检测方法、装置及系统 WO2016095082A1 (zh)

Priority Applications (6)

Application Number Priority Date Filing Date Title
CN201480077046.1A CN106464356B (zh) 2014-12-15 2014-12-15 一种流氓光网络单元的检测方法、装置及系统
KR1020177019030A KR101961053B1 (ko) 2014-12-15 2014-12-15 불량 광 네트워크 유닛을 검출하는 방법, 장치 및 시스템
PCT/CN2014/093820 WO2016095082A1 (zh) 2014-12-15 2014-12-15 一种流氓光网络单元的检测方法、装置及系统
EP14908117.6A EP3220556B1 (en) 2014-12-15 2014-12-15 Method, device and system for detecting rogue optical network unit
JP2017549564A JP6551893B2 (ja) 2014-12-15 2014-12-15 不正光ネットワークユニットを検出するための方法、装置およびシステム
US15/622,760 US10110301B2 (en) 2014-12-15 2017-06-14 Method, apparatus, and system for detecting rogue optical network unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2014/093820 WO2016095082A1 (zh) 2014-12-15 2014-12-15 一种流氓光网络单元的检测方法、装置及系统

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US15/622,760 Continuation US10110301B2 (en) 2014-12-15 2017-06-14 Method, apparatus, and system for detecting rogue optical network unit

Publications (1)

Publication Number Publication Date
WO2016095082A1 true WO2016095082A1 (zh) 2016-06-23

Family

ID=56125549

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2014/093820 WO2016095082A1 (zh) 2014-12-15 2014-12-15 一种流氓光网络单元的检测方法、装置及系统

Country Status (6)

Country Link
US (1) US10110301B2 (zh)
EP (1) EP3220556B1 (zh)
JP (1) JP6551893B2 (zh)
KR (1) KR101961053B1 (zh)
CN (1) CN106464356B (zh)
WO (1) WO2016095082A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117411547A (zh) * 2023-12-14 2024-01-16 武汉长光科技有限公司 光网络单元故障定位方法及光网络单元数据收发方法

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020133134A1 (zh) * 2018-12-28 2020-07-02 华为技术有限公司 一种建立光缆连接的方法及装置
CN111010628B (zh) * 2019-11-30 2021-06-29 华为技术有限公司 上行资源授权方法和相关设备及计算机可读存储介质
CN113132149B (zh) * 2020-01-16 2022-08-30 中国移动通信集团广西有限公司 网络数据分级方法、装置及网管服务器、存储介质
CN114584211B (zh) * 2020-11-28 2024-05-17 华为技术有限公司 一种流氓光网络终端的检测方法及光通信装置
CN114866139A (zh) * 2022-04-07 2022-08-05 上海联虹技术有限公司 故障排查方法、装置、系统、设备及存储介质

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102142897A (zh) * 2011-03-29 2011-08-03 华为技术有限公司 一种光网络单元的检测方法、装置和无源光网络系统
US20120163808A1 (en) * 2010-12-23 2012-06-28 Electronics And Telecommunications Research Institute Detecting rogue onu, olt and pon system
CN103036612A (zh) * 2012-12-18 2013-04-10 华为技术有限公司 流氓光节点onu检测方法、隔离方法及设备
CN103597759A (zh) * 2011-04-13 2014-02-19 中兴通讯股份有限公司 减轻在无源光网络（pon）中的流氓光网络单元（onu）行为

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20090125957A (ko) * 2008-06-03 2009-12-08 주식회사 케이티 이더넷 수동광분기망에서 장애 발생 검출 방법 및 시스템
CN102142894B (zh) * 2011-02-12 2015-04-15 华为技术有限公司 一种光网络单元的控制方法、装置及系统
WO2012139516A1 (en) 2011-04-13 2012-10-18 Zte Corporation Mitigating rogue optical network unit (onu) behavior in a passive optical network (pon)
US20140056582A1 (en) * 2012-08-27 2014-02-27 Calix, Inc. Detecting and communicating potential optical fiber issues in optical networks
US10033459B2 (en) * 2013-02-15 2018-07-24 Lantiq Deutschland Gmbh System, method and apparatus for a rogue optics network unit

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120163808A1 (en) * 2010-12-23 2012-06-28 Electronics And Telecommunications Research Institute Detecting rogue onu, olt and pon system
CN102142897A (zh) * 2011-03-29 2011-08-03 华为技术有限公司 一种光网络单元的检测方法、装置和无源光网络系统
CN103597759A (zh) * 2011-04-13 2014-02-19 中兴通讯股份有限公司 减轻在无源光网络（pon）中的流氓光网络单元（onu）行为
CN103036612A (zh) * 2012-12-18 2013-04-10 华为技术有限公司 流氓光节点onu检测方法、隔离方法及设备

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117411547A (zh) * 2023-12-14 2024-01-16 武汉长光科技有限公司 光网络单元故障定位方法及光网络单元数据收发方法
CN117411547B (zh) * 2023-12-14 2024-02-27 武汉长光科技有限公司 光网络单元故障定位方法及光网络单元数据收发方法

Also Published As

Publication number Publication date
KR20170093946A (ko) 2017-08-16
EP3220556B1 (en) 2019-02-20
US20170279525A1 (en) 2017-09-28
EP3220556A4 (en) 2017-11-08
CN106464356A (zh) 2017-02-22
JP2018500860A (ja) 2018-01-11
US10110301B2 (en) 2018-10-23
EP3220556A1 (en) 2017-09-20
JP6551893B2 (ja) 2019-07-31
KR101961053B1 (ko) 2019-03-21
CN106464356B (zh) 2019-05-24

Similar Documents

Publication Publication Date Title
WO2016095082A1 (zh) 一种流氓光网络单元的检测方法、装置及系统
US20090154337A1 (en) Protection switching method based on change in link status in ethernet link aggregation sublayer
EP2966798B1 (en) Active and standby changeover method, apparatus, device, and system for network device
WO2016188196A1 (zh) 一种异常pon终端的检测方法及装置
WO2017113214A1 (zh) 光网络单元的检测方法、装置和无源光网络系统
CN102752041A (zh) Gpon系统中检测长发光onu的方法
WO2017166546A1 (zh) 一种长发光光网络单元的检测方法、装置及光线路终端
CN102045105A (zh) 一种故障主动检测隔离方法和光线路单元
WO2016181666A1 (ja) Ｐｏｎ通信システムにおける局側装置及び故障端末特定方法
WO2016061782A1 (zh) 一种光纤故障诊断方法、装置及系统
WO2018209914A1 (zh) 一种gpon系统中olt环回检测的方法及系统
JP5940994B2 (ja) Ｐｏｎシステム
US20180359235A1 (en) Transmission apparatus and communication method
JP2016143950A (ja) Ｐｏｎシステム
US20220224595A1 (en) Optical communication device and control method
JP5894096B2 (ja) Ｐｏｎプロテクションシステムの異常診断方法
WO2016192285A1 (zh) Pon系统中olt检测ont异常发光的系统及方法
JP6194231B2 (ja) 光加入者線終端装置および転送テーブル破損検知方法
JP6053172B2 (ja) 光アクセスシステム、ｏｌｔ、ｏｓｕ、及びｏｓｕ冗長化方法
JP5655019B2 (ja) 光通信システム
CN112866834B (zh) 光网络单元及其长发光故障的处理方法和系统
JP6387682B2 (ja) 局側通信装置
KR20150079181A (ko) 로그 유닛 감지 장치 및 방법
KR101229641B1 (ko) 노드 제어 방법 및 그를 위한 이더넷 시스템
JP2015144368A (ja) 通信システム、通信装置および故障装置検出方法

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 14908117

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2017549564

Country of ref document: JP

Kind code of ref document: A

REEP Request for entry into the european phase

Ref document number: 2014908117

Country of ref document: EP

NENP Non-entry into the national phase

Ref country code: DE

ENP Entry into the national phase

Ref document number: 20177019030

Country of ref document: KR

Kind code of ref document: A