CN107426044B - Serial line detection method and device and operation and maintenance server - Google Patents
Serial line detection method and device and operation and maintenance server Download PDFInfo
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- CN107426044B CN107426044B CN201610345172.1A CN201610345172A CN107426044B CN 107426044 B CN107426044 B CN 107426044B CN 201610345172 A CN201610345172 A CN 201610345172A CN 107426044 B CN107426044 B CN 107426044B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04B3/00—Line transmission systems
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- H04B3/46—Monitoring; Testing
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- H—ELECTRICITY
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- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/16—Threshold monitoring
Abstract
The invention discloses a serial line detection method, a serial line detection device and an operation maintenance server, which are characterized in that cable characteristics of each target port in a current link building state and crosstalk coefficients among the ports are directly acquired from network element equipment, whether each target port is in serial line can be judged based on comparison between acquired information and a corresponding serial line threshold value in a threshold value database, operation and maintenance personnel are not required to hold special external detection equipment to measure the cable in real time, detection efficiency and convenience can be improved, detection cost can be reduced, manual factor interference is avoided, and detection consistency and accuracy can be improved at the same time. The method is particularly suitable for automatically detecting the serial line condition of a plurality of network element equipment ports under the centralized management area.
Description
Technical Field
The invention relates to the field of broadband access network communication, in particular to a method and a device for detecting a serial line and an operation and maintenance server.
Background
In the practical application environment of the access network communication equipment, as the local side access equipment is directly connected with enterprises and family users in a butt joint mode, compared with an upper-layer transmission and core network, the access network has the advantages that the laying scale of a user cable is large, and the laying environment is complex. Once a cable fault occurs, especially a cable cross-connection problem, user service experience is seriously affected, and first time emergency treatment is required. At present, a general method is that an operation and maintenance engineer uses a special external detection device to detect a user cable on the spot, a detection principle is basically based on a physical pulse mode, and the mode of detecting the user cable on the spot by using the special external detection device has the problems of high cost, low efficiency and large influence of manual operation on detection precision.
Disclosure of Invention
The embodiment of the invention provides a serial line detection method, a serial line detection device and an operation and maintenance server, aiming at solving the problems of high cost, low efficiency and large influence of manual operation on detection precision in a mode of detecting a user cable on the spot by adopting special external detection equipment in the existing serial line detection.
In order to solve the above problem, an embodiment of the present invention provides a serial line detection method, including:
acquiring target ports with a link establishment state on network element equipment, cable characteristics of each target port and crosstalk coefficients among the target ports;
acquiring a serial line threshold corresponding to each target port cable from a threshold database according to the characteristics of each target port cable; the threshold database stores the corresponding relation between the cable characteristics and the string threshold;
and judging whether each target port is in series connection or not according to the crosstalk coefficient among the target ports and the series connection threshold of each target port cable.
In order to solve the above problem, an embodiment of the present invention further provides a serial line detection apparatus, including:
the network element equipment comprises an information acquisition unit, a link establishment unit and a link selection unit, wherein the information acquisition unit is used for acquiring target ports with a link establishment state on the network element equipment, cable characteristics of each target port and crosstalk coefficients among the target ports;
the threshold query unit is used for acquiring a serial line threshold corresponding to each target port cable from the threshold database according to the characteristics of each target port cable; the threshold database stores the corresponding relation between the cable characteristics and the string threshold;
and the processing unit is used for judging whether each target port is in series connection or not according to the crosstalk coefficient between each target port and the series connection threshold of each target port cable.
In order to solve the above problem, an embodiment of the present invention further provides an operation and maintenance server, including the above string detection device.
In order to solve the above problem, the present invention further provides an operation and maintenance server, including a processor and a memory, where the processor is configured to control the modules in the memory to perform the following processes:
acquiring target ports with a link establishment state on network element equipment, cable characteristics of each target port and crosstalk coefficients among the target ports;
acquiring a serial line threshold corresponding to each target port cable from a threshold database according to the characteristics of each target port cable; the threshold database stores the corresponding relation between the cable characteristics and the string threshold;
and judging whether each target port is in series connection or not according to the crosstalk coefficient among the target ports and the series connection threshold of each target port cable.
One of the above technical solutions has the following beneficial effects:
the method comprises the steps of obtaining a target port of which the state is a link establishment state on network element equipment, obtaining cable characteristics of each target port and crosstalk coefficients among the target ports, obtaining a serial line threshold corresponding to each target port cable from a threshold database according to the cable characteristics of each target port, and judging whether each target port is in serial line according to the crosstalk coefficients among the target ports and the serial line threshold of each target port cable. The invention can directly collect the cable characteristics of each target port in the current link establishment state and the crosstalk coefficient between the ports from the network element equipment, and can judge whether each target port is in a serial line or not by comparing the collected information with the corresponding serial line threshold value in the threshold value database, and the operation and maintenance personnel do not need to hold special external detection equipment to measure the cable in real time, thereby improving the detection efficiency and convenience, reducing the detection cost, avoiding the interference of human factors, and improving the consistency and the accuracy of the detection at the same time. The method is particularly suitable for automatically detecting the serial line condition of a plurality of network element equipment ports under the centralized management area.
Drawings
Fig. 1 is a schematic flow chart of a serial line detection method according to a first embodiment of the present invention;
fig. 2 is a schematic flowchart of a process for acquiring a target port of a network element device according to a first embodiment of the present invention;
fig. 3 is a schematic flowchart of determining whether a target port is connected in series according to a first embodiment of the present invention;
fig. 4 is a schematic structural diagram of a serial line detection device according to a second embodiment of the present invention;
fig. 5 is a schematic structural diagram of an operation and maintenance server according to a third embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
The first embodiment is as follows:
in the embodiment, the cable characteristics of each target port in the current link establishment state and the crosstalk coefficient between the ports are directly acquired from the network element equipment, whether each target port is in a serial line or not is judged by comparing the acquired information with the corresponding serial line threshold in the threshold database, and the operation and maintenance personnel are not required to carry out real-time measurement on the cable by holding special external detection equipment, so that the detection efficiency and convenience can be improved, the detection cost is reduced, and the detection accuracy can be improved.
In the present embodiment, the threshold database stores a correspondence between cable characteristics and serial thresholds, that is, different cable characteristics correspond to different cable types, and different cable characteristics in the threshold database correspond to a serial threshold, generally, the serial thresholds corresponding to different cable characteristics are different, but it is not excluded that the serial thresholds corresponding to different individual cable characteristics may also be the same under some circumstances. Cable characteristics in this embodiment include, but are not limited to, cable wire diameter, wire pair, and cable resistance. That is, at least one type of cable may be characterized by cable wire diameter, wire pair, and cable resistance. In this embodiment, the threshold database maintains the crosstalk threshold corresponding to different cable characteristics, which may be a crosstalk threshold obtained after strictly verifying cables with different cable characteristics, and the threshold data may be regarded as a strictly verified empirical value database.
Referring to fig. 1, the method for detecting a serial line according to the present embodiment includes:
s101: and acquiring the target ports of which the states are the link establishment states, the cable characteristics of all the target ports and the crosstalk coefficients among all the target ports on the network element equipment.
In this embodiment, only the port whose current operating state is the link establishment state on the gateway device is subjected to the serial detection. The link establishment state in this embodiment refers to a state in which the port is currently in a link establishment state with the external device. For a port in a non-link establishment state, since the port does not currently establish a link with an external device, the port does not substantially cause crosstalk interference on other ports. Therefore, in order to improve the detection efficiency and accuracy and improve the resource utilization rate, the present embodiment may perform the serial detection only for the target port on the network element device. However, it should be understood that port string conditions in other states may also be detected according to the actual application requirements.
In this embodiment, when all the current ports on the network element device are in the non-link establishment state, the current detection for the network element device may be directly ended. Until the state of at least one of the ports changes to a link-up state.
As shown in fig. 2, the obtaining of the target port in the network element device in the link establishment state includes the following steps:
s201: acquiring all ports on network element equipment to be detected;
s202: and selecting the port which is currently linked with the external equipment as a target port from all the obtained ports.
In this embodiment, there is no strict timing limitation on the acquisition of the cable characteristics of each target port and the crosstalk coefficient between each target port, and the two may be performed simultaneously or in tandem. In this embodiment, for each target port in the link establishment state, the network element device itself may calculate a crosstalk coefficient between the target port in the link establishment state and the target port in the other link establishment state, and this embodiment only needs to extract the sensing coefficient. Corresponding configuration can be carried out on the network element equipment with the cable characteristics of each port, and corresponding extraction can be carried out from the network element equipment. Therefore, the process of generating the crosstalk coefficient and configuring the cable features will not be described in detail in this embodiment. Each target port cable feature in this embodiment includes, but is not limited to, a cable wire diameter, a wire pair, and a cable resistance.
S102: and acquiring the serial threshold corresponding to each target port cable from the threshold database according to the characteristics of each target port cable.
In this embodiment, the threshold database stores the correspondence between the cable characteristics and the threshold of the serial line. The string threshold in this embodiment is a reliable threshold obtained after strict experiments or practical application verification.
In this embodiment, when there is no corresponding crosstalk threshold in the threshold database for a cable feature of a certain target port, the crosstalk detection process for the target port is stopped. Meanwhile, the alarm can be given to remind the user of setting the corresponding threshold value.
S103: and judging whether each target port is in series connection or not according to the crosstalk coefficient among the target ports and the series connection threshold of each target port cable.
In this embodiment, for each target port (which may be labeled as port i), whether the target port is in a serial line may be determined according to the queried serial line threshold of the target port and the crosstalk coefficient between the target port and another target port by performing the following calculation, as shown in fig. 3, including:
s301: for each target port, adding crosstalk coefficients between the target port and other target ports to obtain a crosstalk value of the target port;
for example, assuming that there are 5 currently acquired target ports, for each target port, the crosstalk coefficients a1, a2, a3, a4 with the other 4 target ports are acquired, and then the crosstalk value a of the target port is obtained from a1+ a2+ a3+ a 4.
In this step, the above processing may be performed on a plurality of target ports at the same time, and the crosstalk coefficients between each target port and each target port may be recorded in a matrix manner during the processing.
S302: comparing the crosstalk value of the target port with a crosstalk threshold corresponding to the target port cable to determine whether the target port is in crosstalk or not, including:
comparing the crosstalk value of the target port with a serial line threshold value corresponding to the target port cable, and if the crosstalk value of the target port is smaller than the serial line threshold value, judging that the target port is in serial line; otherwise, the port is judged not to be in series connection.
According to the process shown in fig. 3, it can be automatically and accurately determined whether the target port currently processing the link establishment state on each network element device is connected in series.
In this embodiment, cables used by each port on one network element device may be the same, and at this time, the network element device may look up a corresponding serial threshold from the threshold database by taking the network element device as a unit, that is, obtain a cable characteristic of the network element device (which is substantially the same as the cable characteristic of each port of the network element device), and then match the corresponding serial threshold from the threshold database according to the cable characteristic to serve as the serial threshold of each port of the network element device. Therefore, the threshold database can be further simplified, and the resource utilization rate is improved. For a port on a network element device, if there is a cable used by at least one port different from other ports, cable characteristics may be obtained for each port one by one and matched one by one, or cables used by each port may be classified first and then matched once for each class. Or when only the cables used by the individual ports on the network element equipment are different and have little difference with the cables of other ports, the cables are directly matched as the used cables according to the principle that a few cables are completely the same according to the principle of majority.
It should be understood that, when a plurality of network element devices are distributed under the current management area, the detection of the port crosstalk can be automatically completed for each network element device in the above manner. And for the network element equipment list to be detected, the list can be imported from the existing file list or can be acquired from a network management system. The triggering mode of the port information acquisition of each network element to be detected can be triggered according to a detection instruction issued by a user, and can also be acquired in real time or in a timing mode. When port information (including an operating state, cable characteristics, crosstalk coefficients, and the like) of the network element device is obtained, the network element device may specifically use protocols such as SNMP, TCP, and the like to complete interaction with the network element device.
The detection result of the target port of each network element device in the plurality of network element devices can be summarized to generate an inspection report for subsequent statistical query. The generated inspection report can be generated aiming at a plurality of network element devices in the whole network or a designated area, and can be actually set according to a specific application scene.
In addition, in order to determine to which network element device each target port belongs and at which position of the network element device, in this embodiment, when acquiring the port information of the network element device, the user board in the network element device may be acquired first, and then the port on each user board may be acquired. Therefore, when the report is generated, the network element equipment to which each port belongs and the user board on the network element equipment can be identified, so that the subsequent query and the flexible positioning when the problem of line crossing is solved are facilitated.
According to the embodiment, the port information is automatically and directly acquired from the network element equipment, and the corresponding string threshold value obtained through strict test is combined, so that whether the port of the network element equipment is in string can be automatically judged, the convenience is improved compared with the existing mode of measuring by externally connecting a measuring instrument on site, and the advantages of unified management, customizable report forms, convenience in subsequent query and maintenance and the like are increased.
Example two:
the present embodiment provides a serial line detection apparatus, which may be disposed in an Operation and Maintenance server (OMC), as shown in fig. 4, and includes:
the information acquisition unit 401 is configured to acquire a target port in a link establishment state on the network element device, cable characteristics of each target port, and a crosstalk coefficient between each target port;
in this embodiment, one information acquisition unit may be used for one network element device. When the network element equipment is a plurality of network element equipment, a plurality of information acquisition units can be adopted to operate concurrently. The information acquisition unit 401 in this embodiment specifically includes various communication modules and a storage module, where the communication module establishes communication with the network element device through a corresponding communication protocol to complete acquisition of an operating state, cable characteristics, and a crosstalk coefficient, and the storage module is used to complete storage of acquired information.
In this embodiment, the information acquisition unit 401 only acquires information for the port of the gateway device whose current operation state is the link establishment state. The link establishment state in this embodiment refers to a state in which the port is currently in a state of establishing a link with an external device. For the ports in the non-link establishment state, the setting can improve the detection efficiency and accuracy and improve the resource utilization rate, and the embodiment can only perform serial line detection on the target ports on the network element equipment. However, it should be understood that port string conditions in other states may also be detected according to the actual application requirements.
The information acquisition unit 401 obtains the following specific target ports in the network element device in the link establishment state: acquiring all ports on network element equipment to be detected; and selecting the port which is currently linked with the external equipment as a target port from all the obtained ports.
In this embodiment, the information acquisition unit 401 does not have strict timing limitation on the acquisition of the cable characteristics of each target port and the crosstalk coefficient between each target port, and the two may be performed simultaneously or in tandem. The cable characteristics of each target port acquired by the information acquisition unit 401 in this embodiment include, but are not limited to, cable diameter, cable pair, and cable resistance.
A threshold query unit 402, configured to obtain, from the threshold database, a serial threshold corresponding to each target port cable according to the characteristic of each target port cable.
In this embodiment, the threshold database stores the correspondence between the cable characteristics and the threshold of the serial line. The crosstalk threshold in this embodiment is a reliable threshold obtained through strict experiments or practical application verification. It should be understood that the threshold querying unit 402 in the present embodiment may be implemented by various processor chips. The threshold database in this embodiment may be disposed on the corresponding memory.
The processing unit 403 is configured to determine whether each target port is connected in series according to the crosstalk coefficient between each target port and the serial threshold of each target port cable.
The process that the processing unit 403 judges whether each target port is wired according to the crosstalk coefficient between each target port and the crosstalk threshold of each target port cable is as follows:
for each target port, the processing unit 403 adds the crosstalk coefficients between the target port and other target ports to obtain a crosstalk value of the target port;
for example, assuming that the number of currently acquired target ports is 10, for each target port, the crosstalk coefficients a1, a2, a3, a4 … … and a9 with the other 9 target ports are acquired, and then a1+ a2+ a3+ a4+ … … + a9 obtains the crosstalk value a of the target port.
The processing unit 403 may perform the above processing on multiple target ports at the same time, and may record and calculate crosstalk coefficients between each target port and each target port in a matrix manner during the processing.
Comparing the crosstalk value of the target port obtained by the processing unit 403 with the crosstalk threshold corresponding to the target port cable, and if the crosstalk value is smaller than the crosstalk threshold, determining that the target port is in crosstalk; otherwise, the port is judged not to be in series connection.
The processing unit 403 in this embodiment may be implemented by various processing chips, and may also be implemented by combining various computing units and comparators.
In this embodiment, cables used by each port on one network element device may be the same, and at this time, the threshold query unit 402 may search, by the network element device, a corresponding serial threshold from the threshold database. Therefore, the threshold database can be simplified, and the resource utilization rate can be improved. For a port on a network element device, if there is a cable used by at least one port that is different from other ports, the threshold query unit 402 may obtain cable characteristics for each port one by one and match the characteristics one by one, or may classify the cables used by each port first and then match each type once. Or when only the cables used by the individual ports on the network element equipment are different and have little difference with the cables of other ports, the cables are directly matched as the used cables according to the principle that a few cables are completely the same according to the principle of majority.
It should be understood that, when a plurality of network element devices are distributed under the current management area of the serial line detection apparatus (or OMC), the serial line detection apparatus may automatically complete the detection of the port serial line for each network element device in the above manner. And for the list of the network element equipment to be detected, the serial line detection device can be imported from the existing file list and can also be acquired from the network management system. And for the triggering mode of port information acquisition of each network element to be detected, the serial line detection device can be triggered according to the received detection instruction, and can also acquire the port information in real time or acquire the port information in a timing mode. And specifically, protocols including but not limited to SNMP, TCP, and the like can be adopted to complete interaction with the network element device to obtain the information.
The serial line detection device (or OMC) may collect the detection result of the target port of each of the plurality of network element devices to generate an inspection report for subsequent statistical query. And the generated polling report can be generated aiming at a plurality of network element devices in the whole network or a designated area. In addition, in order to determine to which network element device each target port belongs and at which position of the network element device, when acquiring the port information of the network element device, the information acquisition unit 401 of the serial line detection apparatus in this embodiment may acquire the user board in the network element device first, and then acquire the port on each user board. In this way, the processing unit 403 can identify which network element device each port belongs to and which user board on the network element device when generating the report, so as to facilitate subsequent query and flexible positioning when solving the problem of crosstalk.
According to the embodiment, the extraction information of the port on the network element equipment is interactively completed through the OMC and the network element equipment, and the automatic judgment on whether the port of the network element equipment is connected in series or not is realized by combining the serial threshold values corresponding to the characteristics (various cables) of the cables obtained through strict verification.
Example three:
the present embodiment provides an operation and maintenance server OMC, as shown in fig. 5, including a processor 51 and a memory 52, where the processor 51 is configured to control modules (including but not limited to various software modules) in the memory to perform the following processes:
acquiring target ports with a link establishment state on network element equipment, cable characteristics of each target port and crosstalk coefficients among the target ports;
acquiring a serial line threshold corresponding to each target port cable from a threshold database according to the characteristics of each target port cable; the threshold database stores the corresponding relation between the cable characteristics and the string threshold;
and judging whether each target port is in series connection or not according to the crosstalk coefficient among the target ports and the series connection threshold of each target port cable.
In this embodiment, only the port whose current operating state is the link establishment state on the gateway device is subjected to serial line detection. The efficiency and accuracy of detection can be improved, and the resource utilization rate can be improved, and the embodiment can only perform serial line detection on the target port on the network element equipment. However, it should be understood that port string conditions in other states may also be detected according to the actual application requirements.
For a specific process of the processor 51 executing the above steps to implement the serial connection of the target port of the network element device, reference is made to the description of the embodiment, and details are not described herein again.
The OMC in the embodiment can automatically judge whether each chain establishing port on the network element equipment is connected in series, and compared with the existing mode of measuring by externally connecting a measuring instrument on site, the method has the advantages of increasing convenience, simultaneously increasing unified management and customizability of reports, facilitating subsequent query and maintenance and the like.
The above embodiments are only examples of the present invention, and are not intended to limit the present invention in any way, and any simple modification, equivalent change, combination or modification made by the technical essence of the present invention to the above embodiments still fall within the protection scope of the technical solution of the present invention.
Claims (6)
1. A method of string detection, comprising:
acquiring target ports with a link establishment state on network element equipment, cable characteristics of each target port and crosstalk coefficients among the target ports;
acquiring a serial line threshold corresponding to each target port cable from a threshold database according to the characteristics of each target port cable; the threshold database stores the corresponding relation between the cable characteristics and the string threshold;
judging whether each target port is in series connection or not according to the crosstalk coefficient among the target ports and the series connection threshold of each target port cable;
wherein, the judging whether each target port is connected in series according to the crosstalk coefficient between each target port and the serial threshold of each target port cable comprises:
for each target port, adding crosstalk coefficients between the target port and other target ports to obtain a crosstalk value of the target port;
and for each target port, comparing the crosstalk value of the target port with a serial line threshold corresponding to the target port cable, and if the crosstalk value of the target port is smaller than the serial line threshold, judging that the target port is in serial line.
2. The string detection method of claim 1, wherein the cable characteristics comprise a cable wire diameter, a wire pair, and a cable resistance.
3. The method of claim 1, wherein the obtaining the target port in the link setup state on the network element device comprises:
acquiring all ports on the network element equipment;
and selecting a port which is currently linked with the external equipment from the ports as a target port.
4. A string detecting device, comprising:
the network element equipment comprises an information acquisition unit, a link establishment unit and a link selection unit, wherein the information acquisition unit is used for acquiring target ports with a link establishment state on the network element equipment, cable characteristics of each target port and crosstalk coefficients among the target ports;
the threshold query unit is used for acquiring a serial threshold corresponding to each target port cable from the threshold database according to the characteristics of each target port cable; the threshold database stores the corresponding relation between the cable characteristics and the string threshold;
the processing unit is used for judging whether each target port is in series connection or not according to the crosstalk coefficient among the target ports and the series connection threshold of each target port cable;
the processing unit is used for adding crosstalk coefficients between each target port and other target ports to obtain a crosstalk value of the target port; and comparing the crosstalk value of the target port with a serial line threshold value corresponding to the target port cable, and if the crosstalk value of the target port is smaller than the serial line threshold value, judging that the target port is in serial line.
5. The string detection device according to claim 4, wherein the cable characteristics include a cable wire diameter, a wire pair, and a cable resistance.
6. An operation and maintenance server characterized by comprising the string detecting apparatus according to claim 4 or 5.
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| CN201610345172.1A CN107426044B (en) | 2016-05-23 | 2016-05-23 | Serial line detection method and device and operation and maintenance server |
| PCT/CN2017/084952 WO2017202241A1 (en) | 2016-05-23 | 2017-05-18 | Crosstalk detection method and apparatus, and operation maintenance server |
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| WO2017202241A1 (en) | 2017-11-30 |
| CN107426044A (en) | 2017-12-01 |
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