Method and system for querying the access link topology of an IP set-top box in an FTTH access mode

Abstract

The application provides a method for inquiring the access link topology of an IP set top box in an FTTH access mode, which comprises the following steps: obtaining and storing a link information log file of a DHCP server, wherein the link information log file comprises a relay agent information option, a link establishment time, a link end time and identification information of the IP set top box; the link information log file is formed by the DHCP server according to a DHCP message sent by the IP set top box to the DHCP server, and the relay agent information option is configured by a DHCP relay device and inserted into the DHCP message; inquiring the link information log file according to the identification information of the IP set top box to obtain the relay agent information option bound by the IP set top box when a fault occurs; and analyzing the relay agent information option to obtain the link topology information passed by the IP set top box when the fault occurs. Thus, the network manager can accurately and timely record the link information of the equipment and quickly obtain the relevant link topology information when the equipment fails.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of communication technology, and more particularly, to a method and system for querying IP set-top box access link topology in FTTH access mode. BACKGROUND

[0002] With the vigorous promotion of FTTH (Fiber To The Home) services of broadcast operators, digital television services gradually evolve towards full IP. The access terminal of user home television services also changes from the original 4K set-top box with built-in CM access of broadcast coaxial to the mode of IP set-top box under the hanging of ONU (Optical Network Unit) in fiber access.

[0003] The traditional 4K set-top box can simultaneously carry broadband and television services. When the television service fails, the network side fault can be directly checked through the MAC information of the built-in CM. However, in the FTTH access mode, when a single fault occurs, especially when a regional fault occurs, it is not possible to quickly carry out network side fault checking like the 4K set-top box. The operation and maintenance personnel need to log in to multiple network devices (such as ONU, PON, OLT, BRAS, etc.) for comparison and query to form a complete IP set-top box access link topology diagram, which increases the difficulty and time of fault checking. In addition, since the fault checking relies on multiple different devices and systems, any device failure or data inconsistency at any link may cause delay or misjudgment in the troubleshooting process.

[0004] Therefore, there is a need for a new solution. SUMMARY

[0005] The present application aims to solve the problem of large operation and maintenance workload and low efficiency caused by the need for operation and maintenance personnel to manually query and integrate information from different devices (PON, OLT, BRAS, etc.) to form a complete IP set-top box access link topology diagram in FTTH access mode, and provides a method and system for querying IP set-top box access link topology in FTTH access mode.

[0006] According to an aspect of the present application, a method for querying IP set-top box access link topology in FTTH access mode is provided, comprising the following steps:

[0007] acquire and store a link information log file of a DHCP server, wherein the link information log file comprises a relay agent information option, a link establishment time, a link end time and identification information of an IP set top box, the link information log file is formed by the DHCP server according to a DHCP message sent by the IP set top box to the DHCP server, the relay agent information option is configured by a DHCP relay device and inserted in the DHCP message, and the relay agent information option comprises optical network unit information to which the IP set top box is bound, a FTTH optical line terminal to which the IP set top box belongs and a PON port number;

[0008] query the link information log file according to the identification information of the IP set top box, so as to obtain the relay agent information option to which the IP set top box is bound when a fault occurs; and

[0009] analyze the relay agent information option, so as to obtain link topology information passed through by the IP set top box when a fault occurs.

[0010] In the method for querying IP set top box access link topology in a FTTH access mode provided by the application, the link information log file of the DHCP server is acquired through an API interface.

[0011] In the method for querying IP set top box access link topology in a FTTH access mode provided by the application, the identification information of the IP set top box comprises an IP address, a MAC address and a gateway address, and the step of querying the link information log file according to the identification information of the IP set top box to obtain the relay agent information option to which the IP set top box is bound when a fault occurs comprises:

[0012] querying the link information log file according to the IP address, the MAC address and / or the gateway address of the IP set top box to obtain a plurality of link information log records associated with the IP set top box;

[0013] obtaining the relay agent information option to which the IP set top box is bound when a fault occurs according to a fault time of the IP set top box, a link establishment time and / or a link end time of the plurality of link information log records.

[0014] In the method for querying IP set top box access link topology in a FTTH access mode provided by the application, the step of analyzing the relay agent information option to obtain the link topology information passed through by the IP set top box when a fault occurs comprises:

[0015] analyzing the relay agent information option to obtain optical network unit information to which the IP set top box is bound when a fault occurs, a FTTH optical line terminal to which the IP set top box belongs and a PON port number;

[0016] Obtaining BRAS information accessed by the optical line terminal, and composing link topology information including optical network unit information, the optical line terminal, PON port number and BRAS information.

[0017] According to another aspect of the present application, there is also provided a system for querying IP set top box access link topology in FTTH access mode, comprising:

[0018] A log file obtaining module is configured to obtain and store a link information log file of a DHCP server, wherein the link information log file comprises a relay agent information option, link establishment time, link end time and identification information of an IP set top box, the link information log file is formed by the DHCP server according to a DHCP message sent by the IP set top box to the DHCP server, the relay agent information option is configured by a DHCP relay device and inserted in the DHCP message, and the relay agent information option comprises optical network unit information to which the IP set top box is bound, an FTTH optical line terminal to which the IP set top box belongs and a PON port number.

[0019] A querying module is configured to query the link information log file according to the identification information of the IP set top box, and obtain the relay agent information option bound by the IP set top box when the IP set top box fails.

[0020] A link topology information generating module is configured to analyze the relay agent information option, and obtain link topology information passed by the IP set top box when the IP set top box fails.

[0021] In the system for querying IP set top box access link topology in FTTH access mode provided by the present application, the log file obtaining module is connected to the DHCP server through an API interface.

[0022] In the system for querying IP set top box access link topology in FTTH access mode provided by the present application, the identification information of the IP set top box comprises an IP address, a MAC address and a gateway address, and the querying module comprises:

[0023] A log querying unit is configured to query the link information log file according to the IP address, the MAC address and / or the gateway address of the IP set top box, and obtain a plurality of link information log records associated with the IP set top box.

[0024] A screening unit is configured to obtain the relay agent information option bound by the IP set top box when the IP set top box fails according to the time when the IP set top box fails, the link establishment time and / or the link end time of the plurality of link information log records.

[0025] In the system for inquiring the access link topology of the IP set top box under the FTTH access mode provided by the application, the link topology information generation module comprises:

[0026] The analysis unit is used for analyzing the relay agent information option to obtain the optical network unit information bound with the IP set top box in failure, the FTTH optical line terminal and the PON port number belonging to the IP set top box in failure;

[0027] The information generation unit is used for obtaining the BRAS information accessed by the optical line terminal and composing the link topology information comprising the optical network unit information, the optical line terminal, the PON port number and the BRAS information.

[0028] The method and system for inquiring the access link topology of the IP set top box under the FTTH access mode provided by the application have the following beneficial effects: the method for inquiring the access link topology of the IP set top box under the FTTH access mode provided by the application inserts the link information into the DHCP message through the relay agent information and generates the link information log file to store the link information of the IP set top box in accessing the DHCP server each time, so as to provide the network management system with detailed link data; when failure occurs, the relay agent information at the time of failure is obtained by inquiring the link information log file; then, the complete link topology is generated by analyzing the relay agent information, so as to help the administrator to accurately track the position of the failure; thus, the network manager can accurately and timely record the link information of the equipment and quickly obtain the related link topology information when the equipment fails; this not only improves the accuracy and efficiency of the network management, but also quickly locates the problem and reduces the solution time in troubleshooting. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only provide the embodiments of the application, and for those skilled in the art, other drawings can be obtained based on the provided drawings without creative labor:

[0030] Figure 1 The figure is a flowchart of the method for inquiring the access link topology of the IP set top box under the FTTH access mode provided by the embodiment of the application. DETAILED DESCRIPTION

[0031] For the purpose of promoting an understanding of the application, the application will now be described in greater detail with reference to the drawings. In the drawings, embodiments of the application are illustrated by way of example. It is expressly

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0033] Figure 1 As shown in the figure, the method for querying the access link topology of the IP set top box in the FTTH access mode provided by the application comprises the following steps: Figure 1 As shown in the figure, the method for querying the access link topology of the IP set top box in the FTTH access mode provided by the application comprises the following steps:

[0034] Step S1, obtaining and storing the link information log file of the DHCP server;

[0035] Specifically, in an embodiment of the application, the link information log file comprises relay agent information option, link establishment time, link end time and identification information of the IP set top box, the link information log file is formed by the DHCP server according to the DHCP message sent by the IP set top box to the DHCP server, the relay agent information option is configured by the DHCP relay device and inserted in the DHCP message, and the relay agent information option comprises optical network unit information bound by the IP set top box, FTTH optical line terminal to which the IP set top box belongs and PON port number.

[0036] In the embodiment, the device and topology information in the network are delivered and recorded by inserting the DHCP relay agent information option in the DHCP message sent by the IP set-top box to the DHCP server, and the information is synchronously acquired and stored through the API interface, to provide a basis for subsequent link management and troubleshooting. Specifically, when the IP set-top box is online in the network, it needs to request an IP address from the DHCP server. In this process, the FTTH optical line terminal device as the DHCP relay device is configured to enable the RAIO function. The FTTH optical line terminal device is allowed to insert the DHCP relay agent information option into the DHCP Discover / Request message by enabling the RAIO function through configuration. Through the message, the DHCP relay device reports the link information such as the optical network unit, the PON port, and the optical line terminal to the DHCP server, thereby providing detailed information for subsequent network management. When the IP set-top box requests an IP address, the DHCP relay agent information option is configured by the DHCP relay device and inserted into the DHCP message sent by the IP set-top box to the DHCP server, so as to deliver the link information from the IP set-top box to the DHCP server to the DHCP server through the DHCP message. The DHCP server generates a link information log file according to the information, and records the network topology from the IP set-top box to the DHCP server and the related data (such as the link end time and the identification information of the IP set-top box) of the IP set-top box. In order to acquire and synchronize the log information in real time, the application is connected to the DHCP server through the API interface, automatically tracks the changes of the log file, and automatically synchronously stores the latest link information.

[0037] In the embodiment, in the process of requesting an IP address from the DHCP server when the IP set-top box is online, the DHCP relay agent information option is inserted by the DHCP relay device through the DHCP Discover / Request message, and the topology information of the link through which the IP set-top box passes is reported, thereby realizing accurate recording and synchronization of the network device and link information.

[0038] Step S2, querying the link information log file according to the identification information of the IP set-top box, to obtain the relay agent information option bound by the IP set-top box when a fault occurs;

[0039] Specifically, in an embodiment of the present application, the identification information of the IP set-top box comprises an IP address, a MAC address and a gateway address. By manually inputting or batch importing the IP address, the MAC address and / or the gateway address of the IP set-top box, the link information log files of the IP set-top box in different time periods can be obtained, and the link information log files at the time of failure can be filtered out according to the time of failure, and then the relay agent information option bound by the IP set-top box at the time of failure can be obtained. Therefore, step S2 comprises: querying the link information log files according to the IP address, the MAC address and / or the gateway address of the IP set-top box to obtain a plurality of link information log records associated with the IP set-top box; and obtaining the relay agent information option bound by the IP set-top box at the time of failure according to the time of failure of the IP set-top box, the link establishment time and / or the link end time of the plurality of link information log records.

[0040] In the present embodiment, when the IP set-top box fails, the relay agent information option bound by the device at the time of failure is obtained by querying the link information log files, so as to help the administrator locate the problem device and the link position where the failure occurs.

[0041] Step S3: analyzing the relay agent information option to obtain the link topology information passed through by the IP set-top box at the time of failure.

[0042] Specifically, in an embodiment of the present application, a sub-attribute Circuit-id of a relay agent information option (DHCP-Option 82) records link information such as an optical network unit to which an IP set-top box belongs, a PON port, an optical line terminal, and the like. By analyzing the Circuit-id, an administrator can obtain full-link topology information from an optical network unit to an FTTH optical line terminal to a PON port. These information, in combination with other related data (such as BRAS configuration) in the network, can draw a complete link path of the device. Taking a certain IP set-top box in a current network of a broadcasting and television station as an example, the Circuit-id of the DHCP-Option 82 of the IP set-top box is recorded as: 485754431937D9A0 27-CTC-2-A-YOUXIANSHUNIU01-HW5800X7 xpon 0 / 1 / 1, which is analyzed as that the terminal (IP set-top box) is online on an optical network unit ONU (SN: 485754431937D9A0) device, and the FTTH optical line terminal OLT to which the IP set-top box belongs is 27-CTC-2-A-YOUXIANSHUNU01-HW5800X7, and the PON port number is 0 / 1 / 1. In combination with BRAS information accessed by the FTTH optical line terminal in the current network, a complete and real topology of the IP set-top box access link can be obtained. Therefore, step S3 includes: analyzing the relay agent information option to obtain optical network unit information, an FTTH optical line terminal to which the IP set-top box belongs, and a PON port number bound to the IP set-top box; and obtaining BRAS information accessed by the optical line terminal to form link topology information including the optical network unit information, the FTTH optical line terminal, the PON port number, and the BRAS information.

[0043] In the embodiment, through the Circuit-id in the relay agent information option, an administrator can accurately track link information of a device, understand a connection path of the device and network device configuration, and locate a possible fault point in the network. In this way, the administrator can reduce troubleshooting time and improve network management efficiency.

[0044] The application provides a method for inquiring into an IP set top box access link topology in an FTTH access mode, inserts link information into a DHCP message through relay agent information, stores link information of the IP set top box in accessing a DHCP server each time, and provides detailed link data for a network management system; when a fault occurs, the relay agent information at the time of the fault is obtained by inquiring into a link information log file; then, a complete link topology is generated by analyzing the relay agent information, so as to help an administrator to accurately track a fault position; thus, the network manager can accurately and timely record the link information of the equipment, and quickly obtain relevant link topology information when the equipment fails; this not only improves the accuracy and efficiency of network management, but also quickly locates problems and reduces the solution time in troubleshooting.

[0045] Correspondingly, the application also provides a system for inquiring into an IP set top box access link topology in an FTTH access mode, which comprises: a log file acquisition module, which is used for acquiring and storing a link information log file of a DHCP server, wherein the link information log file comprises a relay agent information option, link establishment time, link end time and identification information of an IP set top box, the link information log file is formed by the DHCP server according to a DHCP message sent by the IP set top box to the DHCP server, the relay agent information option is configured by a DHCP relay device and inserted into the DHCP message, and the relay agent information option comprises optical network unit information bound by the IP set top box, a FTTH optical line terminal and a PON port number; a query module, which is used for querying the link information log file according to the identification information of the IP set top box, and obtaining the relay agent information option bound by the IP set top box when a fault occurs; and a link topology information generation module, which is used for analyzing the relay agent information option, and obtaining link topology information passed by the IP set top box when a fault occurs.

[0046] Further, in an embodiment of the application, the log file acquisition module is connected to the DHCP server through an API interface.

[0047] Further, in an embodiment of the application, the identification information of the IP set top box comprises an IP address, a MAC address and a gateway address, and the query module comprises: a log query unit, which is used for querying the link information log file according to the IP address, the MAC address and / or the gateway address of the IP set top box, and obtaining a plurality of link information log records associated with the IP set top box; and a screening unit, which is used for obtaining the relay agent information option bound by the IP set top box when a fault occurs according to a fault time of the IP set top box, link establishment time and / or link end time of the plurality of link information log records.

[0048] Further, in an embodiment of the present application, the link topology information generating module comprises: an analyzing unit, configured to analyze the relay agent information option to obtain the optical network unit information bound to the IP set-top box in failure, the FTTH optical line terminal to which the optical network unit information belongs, and the PON port number; and an information generating unit, configured to obtain BRAS information accessed by the optical line terminal, and generate link topology information comprising the optical network unit information, the optical line terminal, the PON port number, and the BRAS information.

[0049] The embodiment of the present application also provides a device for querying IP set-top box access link topology in FTTH access mode, which can comprise:

[0050] a memory, configured to store a computer program;

[0051] a processor, configured to execute the computer program stored in the memory to realize the following steps:

[0052] obtaining and storing a link information log file of a DHCP server, wherein the link information log file comprises a relay agent information option, link establishment time, link end time, and identification information of an IP set-top box, the link information log file is formed by the DHCP server according to a DHCP message sent by the IP set-top box to the DHCP server, the relay agent information option is configured by a DHCP relay device and inserted in the DHCP message, and the relay agent information option comprises optical network unit information bound to the IP set-top box, an FTTH optical line terminal to which the optical network unit information belongs, and a PON port number; querying the link information log file according to the identification information of the IP set-top box to obtain the relay agent information option bound to the IP set-top box in failure; and analyzing the relay agent information option to obtain link topology information passed through by the IP set-top box in failure.

[0053] The embodiment of the present application also provides a computer readable storage medium, which stores a computer program, and the computer program is executed by a processor to realize the following steps:

[0054] Acquire and store a link information log file of a DHCP server, wherein the link information log file comprises a relay agent information option, a link establishment time, a link end time and identification information of an IP set top box, the link information log file is formed by the DHCP server according to a DHCP message sent by the IP set top box to the DHCP server, the relay agent information option is configured by a DHCP relay device and inserted in the DHCP message, and the relay agent information option comprises optical network unit information to which the IP set top box is bound, an FTTH optical line terminal to which the IP set top box belongs and a PON port number; query the link information log file according to the identification information of the IP set top box to obtain the relay agent information option to which the IP set top box is bound when a fault occurs; and analyze the relay agent information option to obtain link topology information passed through by the IP set top box when the fault occurs.

[0055] The computer readable storage medium can include a U disk, a mobile hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and various media capable of storing program codes.

[0056] In the description provided herein, numerous specific details are set forth. However, it is understood that embodiments of the application can be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.

[0057] Similarly, it is to be understood that the embodiments of the present application can be used in the exact form disclosed herein, or with minor modifications, and the present disclosure is not limited to the exact form disclosed herein. It is also to be understood that the features of the present application, as described in the specification, can be used in any combination and / or permutation, and the present disclosure is not limited to the specific combinations and / or permutations described herein. Similarly, it is to be understood that, for the sake of brevity, certain illustrative embodiments of the present application are shown and described in the specification, and in the accompanying drawings, and that changes in the skill of the art to which the present application pertains are meant to be covered by the appended claims.

[0058] Those skilled in the art will understand that modules in the device of the embodiments can be adaptively changed and placed in one or more devices different from that embodiment. Modules, units, or components in the embodiments can be combined into a single module, unit, or component, and further, they can be divided into multiple sub-modules, sub-units, or sub-components. Except where at least some of such features and / or processes or units are mutually exclusive, any combination can be used to combine all features disclosed in this specification (including the accompanying claims, abstract, and drawings) and all processes or units of any method or device so disclosed. Unless expressly stated otherwise, each feature disclosed in this specification (including the accompanying claims, abstract, and drawings) may be replaced by an alternative feature serving the same, equivalent, or similar purpose.

[0059] Furthermore, those skilled in the art will understand that although some embodiments herein include certain features included in other embodiments but not others, combinations of features from different embodiments are intended to be within the scope of the invention and form different embodiments. For example, in the following claims, any of the claimed embodiments can be used in any combination.

[0060] The various component embodiments of the present invention can be implemented in hardware, or as software modules running on one or more processors, or a combination thereof. Those skilled in the art will understand that microprocessors or digital signal processors (DSPs) can be used in practice to implement some or all of the functions of some or all of the components according to the embodiments of the present invention. The present invention can also be implemented as a device or apparatus program (e.g., a computer program and computer program product) for performing part or all of the methods described herein. Such programs implementing the present invention can be stored on a computer-readable medium, or can be in the form of one or more signals. Such signals can be downloaded from an Internet website, provided on a carrier signal, or provided in any other form.

[0061] It should be noted that the above-mentioned embodiments illustrate rather than limit the application, and that those skilled in the art will be able to design many alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The application can be implemented by means of both hardware and software, and any combination thereof. In a unitary claim, several devices or means can be listed, comprising means which can be implemented by one and the same hardware item. The use of the word "a" or "an" does not exclude the presence of a plurality of such elements, nor does it imply that a single element is to be used.

Claims

1. A method for querying an IP set-top box access link topology in FTTH access mode, characterized in that, The method comprises: acquiring and storing a link information log file from a DHCP server, wherein the link information log file comprises a relay agent information option, a link establishment time, a link end time and identification information of an IP set top box, the link information log file is formed by the DHCP server according to a DHCP message sent by the IP set top box to the DHCP server, the relay agent information option is configured by a DHCP relay device and inserted in the DHCP message, and the relay agent information option comprises optical network unit information to which the IP set top box is bound, a FTTH optical line terminal to which the IP set top box belongs and a PON port number; querying the link information log file according to the identification information of the IP set top box to obtain a relay agent information option to which the IP set top box is bound when a fault occurs; and parsing the relay agent information option to obtain link topology information passed through by the IP set top box when the fault occurs. The step of parsing the relay agent information option to obtain the link topology information passed through by the IP set top box when the fault occurs comprises: parsing the relay agent information option to obtain optical network unit information to which the IP set top box is bound, a FTTH optical line terminal to which the IP set top box belongs and a PON port number; acquiring BRAS information accessed by the optical line terminal to form link topology information comprising optical network unit information, a FTTH optical line terminal, a PON port number and BRAS information.

2. The method for querying the topology of the access link of the IP set-top box in the FTTH access mode according to claim 1, characterized in that, The link information log file of the DHCP server is acquired through an API interface.

3. The method for querying the FTTH access mode under the IP set top box access link topology according to claim 1, characterized in that, The identification information of the IP set top box comprises an IP address, a MAC address and a gateway address, and the step of querying the link information log file according to the identification information of the IP set top box to obtain the relay agent information option to which the IP set top box is bound when a fault occurs comprises: querying the link information log file according to the IP address, the MAC address and / or the gateway address of the IP set top box to obtain a plurality of link information log records associated with the IP set top box; obtaining the relay agent information option to which the IP set top box is bound when a fault occurs according to a time when the IP set top box fails, a link establishment time and / or a link end time of the plurality of link information log records.

4. A system for querying the topology of the access link of an IP set-top box in FTTH access mode, connected to a DHCP server, characterized in that, The method comprises: a log file acquisition module configured to acquire and store a link information log file of a DHCP server, wherein the link information log file comprises a relay agent information option, a link establishment time, a link end time and identification information of an IP set top box, the link information log file is formed by the DHCP server according to a DHCP message sent by the IP set top box to the DHCP server, the relay agent information option is configured by a DHCP relay device and inserted in the DHCP message, and the relay agent information option comprises optical network unit information to which the IP set top box is bound, a FTTH optical line terminal to which the IP set top box belongs and a PON port number; The query module is configured to query the link information log file according to the identification information of the IP set-top box, and obtain the relay agent information option bound by the IP set-top box when the IP set-top box fails. The link topology information generation module is configured to parse the relay agent information option, and obtain link topology information passed by the IP set-top box when the IP set-top box fails. The link topology information generation module comprises: The analysis unit is configured to parse the relay agent information option, and obtain optical network unit information bound by the IP set-top box when the IP set-top box fails, and an FTTH optical line terminal and a PON port number to which the optical network unit information belongs. The information generation unit is configured to obtain BRAS information accessed by the optical line terminal, and generate link topology information comprising the optical network unit information, the optical line terminal, the PON port number, and the BRAS information.

5. The system for querying the FTTH access mode under the IP set top box access link topology according to claim 4, characterized in that, The log file acquisition module is connected to the DHCP server through an API interface.

6. The system for querying the FTTH access mode under the IP set top box access link topology according to claim 4, characterized in that, The identification information of the IP set-top box comprises an IP address, a MAC address, and a gateway address, and the query module comprises: The log query unit is configured to query the link information log file according to the IP address, the MAC address, and / or the gateway address of the IP set-top box, and obtain a plurality of link information log records associated with the IP set-top box. The screening unit is configured to obtain the relay agent information option bound by the IP set-top box when the IP set-top box fails according to a time when the IP set-top box fails, link establishment time, and / or link end time of the plurality of link information log records.

7. An apparatus for querying an IP set-top box access link topology in an FTTH access mode, characterized in that, The computer program is executed by the processor to implement the steps of the method for querying IP set-top box access link topology in an FTTH access mode according to any one of claims 1 to 3.

8. A computer readable storage medium having stored therein a computer program, characterized in that: The computer program is executed by the processor to implement the method according to any one of claims 1 to 3.

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