CN115242301B - Network link monitoring method and device, storage medium and communication equipment - Google Patents
Network link monitoring method and device, storage medium and communication equipment Download PDFInfo
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Abstract
The disclosure provides a network link monitoring method and device, a storage medium and communication equipment; relates to the technical field of communication. The method comprises the following steps: respectively arranging network probes at two ends of a target network link, and sending an Internet packet explorer through the network probes to acquire delay information of each section of routing path in a first node transmission path; determining the equipment processing time delay of each node in the transmission path of the first node based on the time delay information of each section of the routing path; based on the device processing delay, network transmission conditions of each segment of routing path are determined. The method and the device can solve the problem of effective monitoring of the road section/node affecting the network quality in the PON system network link, and improve the accuracy of network link monitoring.
Description
Technical Field
The disclosure relates to the technical field of communication, and in particular relates to a network link monitoring method and device, a storage medium and communication equipment.
Background
With the development of communication technology, the application of broadband optical access networks is becoming more and more popular, and how to accurately monitor network links of broadband PON (Passive Optical Network ) access networks is becoming a focus of this field.
Under different environments, the internal network structure of the PON system has a large difference, and network links between different network nodes can affect the network quality to a large extent. In the related art, effective monitoring means for road sections/nodes affecting the network quality in a network link are lacked, and the monitoring accuracy is low.
It should be noted that the information disclosed in the above background section is only for enhancing understanding of the background of the present disclosure and thus may include information that does not constitute prior art known to those of ordinary skill in the art.
Disclosure of Invention
The embodiment of the disclosure aims to provide a network link monitoring method and device, a storage medium and communication equipment, so that effective monitoring of road sections/nodes affecting network quality in a PON system network link is solved to a certain extent, and accuracy of network link monitoring is improved.
According to a first aspect of the present disclosure, there is provided a network link monitoring method applied to a passive optical network PON system, the method comprising: respectively arranging network probes at two ends of a target network link, and sending an Internet packet explorer to an opposite end and each node on a first node transmission path through the network probes so as to acquire delay information of each section of routing path in the first node transmission path; the first node transmission path is used for indicating a transmission path of information to be transmitted on the target network link; determining the equipment processing time delay of each node in the first node transmission path based on the time delay information of each section of routing path; and determining the network transmission condition of each section of routing path based on the equipment processing time delay.
Optionally, the method further comprises: respectively sending route tracking commands to an opposite end and an Optical Line Terminal (OLT) through the network probe so as to acquire two second node transmission paths; and determining the position of the OLT in the target network link in response to the comparison result of the two second node transmission paths so as to determine a first node transmission path.
Optionally, the determining, in response to a comparison result of the two transmission paths of the second node, a position of the OLT in the target network link includes: comparing the two second node transmission paths, and determining the difference node starting positions of the two second node transmission paths; the difference node is a node with different routing paths in the two second node transmission paths; and determining the initial position of the difference node as the position of the OLT in the target network link.
Optionally, the determining, based on the delay information of each routing path, a device processing delay of each node in the first node transmission path includes: respectively acquiring first delay information from an initial node to a destination node, second delay information from the initial node to an intermediate node and third delay information from the intermediate node to the destination node in the first node transmission path; the destination node is a routing node located between the starting node and the destination node in the transmission path of the first node; and summing the second delay information and the third delay information, comparing the summation result with the first delay information, and determining the equipment processing delay of the intermediate node.
Optionally, the determining the device processing delay of each node in the first node transmission path based on the delay information of each segment of the routing path further includes: acquiring a plurality of groups of time delay data in the transmission path of the first node in a preset time period; each group of time delay data comprises first time delay information, second time delay information and third time delay information; determining a first delay information average value, a second delay information average value and a third delay information average value in the plurality of groups of delay data; and determining the equipment processing time delay of the corresponding intermediate node by using the first time delay information average value, the second time delay information average value and the third time delay information average value.
Optionally, before determining the device processing delay of the intermediate node, the method further comprises: and respectively carrying out data filtering processing on the first delay information, the second delay information and the third delay information.
According to a second aspect of the present disclosure, there is provided a network link monitoring apparatus applied to a passive optical network PON system, the apparatus comprising: the detection module is used for respectively arranging network probes at two ends of a target network link, and sending an Internet packet explorer to an opposite end and each node on the transmission path of the first node through the network probes so as to acquire delay information of each section of routing path in the transmission path of the first node; the first node transmission path is used for indicating a transmission path of information to be transmitted on the target network link; the first determining module is used for determining equipment processing time delay of each node in the first node transmission path based on the time delay information of each section of routing path; and the second determining module is used for determining the network transmission condition of each section of routing path based on the equipment processing time delay.
According to a third aspect of the present disclosure, there is provided a computer readable storage medium having stored thereon a computer program which when executed by a processor performs a method of any of the above.
According to a fourth aspect of the present disclosure, there is provided a communication device comprising: a processor; and a memory for storing executable instructions of the processor; wherein the processor is configured to perform the method of any of the above via execution of executable instructions.
Exemplary embodiments of the present disclosure may have some or all of the following advantages:
In the network link monitoring method provided by the exemplary embodiment of the present disclosure, on one hand, network probes may be respectively arranged at two ends of a target network link, and an internet packet explorer is sent to an opposite end and each node on a transmission path of a first node through the network probes, so as to obtain delay information of each section of routing path in the transmission path of the first node; and further determining the equipment processing time delay of each node, and finally determining the network transmission condition of each section of routing path. The network probes at the two ends of the network link are skillfully utilized to determine the equipment processing time delay, so that the equipment processing time delay can be separated from the time delay information of the routing path, the transmission time delay of the routing path can be determined more accurately, and the accurate monitoring of the routing path is realized. On the other hand, the network probe is realized by a software program, does not depend on a hardware level, can avoid link difference caused by hardware difference between nodes, and can realize flexible deployment and application. In addition, the present disclosure utilizes existing internet packet explorers for link monitoring without additional monitoring deployment, which is highly practical.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure. It will be apparent to those of ordinary skill in the art that the drawings in the following description are merely examples of the disclosure and that other drawings may be derived from them without undue effort.
Fig. 1 schematically illustrates one of the flow diagrams of the network link monitoring method according to one embodiment of the present disclosure.
Fig. 2 schematically illustrates a diagram of a network probe acquiring routing path delay information according to one embodiment of the present disclosure.
Fig. 3 schematically illustrates two second node transmission path diagrams of different deployment site network probes according to one embodiment of the present disclosure.
Fig. 4 schematically illustrates a second flow diagram of a network link monitoring method according to one embodiment of the present disclosure.
Fig. 5 schematically illustrates a structural diagram of a network link monitoring apparatus according to one embodiment of the present disclosure.
Fig. 6 schematically illustrates an exemplary communication device block diagram according to one embodiment of the disclosure.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments may be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the present disclosure. However, those skilled in the art will recognize that the aspects of the present disclosure may be practiced with one or more of the specific details, or with other methods, components, devices, steps, etc. In other instances, well-known technical solutions have not been shown or described in detail to avoid obscuring aspects of the present disclosure.
Furthermore, the drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus a repetitive description thereof will be omitted. Some of the block diagrams shown in the figures are functional entities and do not necessarily correspond to physically or logically separate entities. These functional entities may be implemented in software or in one or more hardware modules or integrated circuits or in different networks and/or processor devices and/or microcontroller devices.
The network link monitoring method provided in some embodiments of the present disclosure is applied to an industrial PON platform, which may be deployed at an enterprise workshop level and a factory level, for carrying production, monitoring and office services of an enterprise. In addition, the conversion of the industrial protocol can be realized by deploying the industrial PON equipment at a workshop level, and the service bearing capacity based on the standardized unified protocol can be provided for different types of field-level equipment, sensors and enterprise information management and cloud service platforms.
OLT (Optical LINE TERMINAL) and ONU (Optical Network Unit) are extremely important components in an industrial PON platform. The OLT may be installed in a central control station of the enterprise campus, which is a local side device, and the ONU may be installed in a user side of the enterprise campus, which is a user side device. The local side device OLT and the plurality of user side devices ONU may be connected through an Optical Distribution Network (ODN) formed by a passive optical cable, an optical splitter/combiner, and the like. Other networks, such as ethernet and Element Management Systems (EMS), may also be provided between the ONU and the user.
However, in different enterprise environments, the network structure inside the PON platform has a large difference, and network links between nodes in the platform can affect the network quality to a large extent. When network interruption or congestion occurs in the network, accurate positioning to the congestion position is required, so the network link monitoring method of the present disclosure is proposed.
Referring to fig. 1, the network link monitoring method according to one embodiment of the present disclosure may be applied to an industrial PON system, and may include the following steps S110 to S130.
Step S110, respectively arranging network probes at two ends of a target network link, and sending an Internet packet explorer to an opposite end and each node on a first node transmission path through the network probes so as to acquire delay information of each section of routing path in the first node transmission path.
In this example embodiment, the target network link refers to a network routing path between the application platform and the target ONU, and the target network link may not have a direction. The application platform may be a user-oriented application platform within an enterprise campus for users to manage/monitor network information (such as data traffic, load, etc. of each node in the network). The network probe refers to a software program capable of acquiring a transmission delay of each node of the routing path, and may include, for example, a software program corresponding to a Ping (PACKET INTERNET Groper, internet packet explorer) command. The first node transmission path may be a directional routing path from one node to another node in the target network link, such as the routing path from platform a to OLT B in fig. 2.
Illustratively, as shown in fig. 2, in the target network link (e.g., from the application platform a to the ONU C), network probes may be installed in the platform a and the ONU C, respectively, then Ping commands may be sent by the network probe of the platform a to the opposite end (ONU C) and the OLT B, respectively, and Ping commands may be sent by the network probe of the ONU C to the opposite end (platform a) and the OLT B, respectively, where each Ping command may be capable of displaying the amount of time between sending the loopback request and returning the loopback response in units of milliseconds, i.e., delay information of each route path (e.g., the Ping commands of the ONU C to the OLT B may return the delay information of the route path).
Step S120, determining a device processing delay of each node in the transmission path of the first node based on the delay information of each segment of the routing path.
In this example embodiment, the device processing delay refers to the time required for the node corresponding device to internally process the data. Illustratively, as shown in fig. 2, the delay information from the platform a to the OLT B includes the transmission delay of the routing path D and the device processing delay of the OLT B (t 3), the delay information from the ONU C to the OLT B includes the device processing delay of the routing path E and the OLT B (t 3), and the delay information from the platform a to the ONU C does not include the device processing delay of the OLT B, since the OLT B device only forwards the information in this routing path and does not perform internal processing. The device processing delay (e.g., t 3) corresponding to each node can be determined based on the delay information of the different routing paths. The routing path D, E is made up of gateways or routers of the pathways.
In this example embodiment, the first node transmission path may include a routing path between the application platform and any one of the target network links and a routing path between the target ONU and any one of the target network links.
Step S130, determining the network transmission status of each routing path based on the device processing delay.
In this example embodiment, a processing delay threshold and a transmission delay threshold, i.e., a first delay threshold, may be set. When the processing delay of the equipment exceeds the first threshold value of the processing delay, the overload carrying or the data congestion of the equipment can be determined. When the transmission delay (total delay-device processing delay) of the routing path corresponding to the device exceeds a first threshold of the transmission delay, the congestion of the routing path of the segment can be determined. A corresponding second delay threshold for determining that the device is interrupted or the routing path is interrupted may also be set, where the second delay threshold may be set separately, or may be set according to a corresponding first delay threshold, which is not limited in this example.
In the network link monitoring method provided by the embodiment of the disclosure, on one hand, network probes may be respectively arranged at two ends of a target network link, and an internet packet explorer is sent to an opposite end and each node on a first node transmission path through the network probes to obtain delay information of each section of routing path in the first node transmission path; and further determining the equipment processing time delay of each node, and finally determining the network transmission condition of each section of routing path. The network probes at the two ends of the network link are skillfully utilized to determine the equipment processing time delay, so that the equipment processing time delay can be separated from the time delay information of the routing path, the transmission time delay of the routing path can be determined more accurately, and the accurate monitoring of the routing path is realized. On the other hand, the network probe is realized by a software program, does not depend on a hardware level, can avoid link difference caused by hardware difference between nodes, and can realize flexible deployment and application. In addition, the present disclosure utilizes existing internet packet explorers for link monitoring without additional monitoring deployment, which is highly practical.
In some embodiments, the method further comprises:
And sending route tracking commands to the opposite end and the Optical Line Terminal (OLT) respectively through the network probe so as to acquire two second node transmission paths.
In this example embodiment, the network probe may further include a software program corresponding to a route tracking command, for example, a software program corresponding to a traceroute command, and may further include a route tracking command program corresponding to another operating system, which is not limited in this example. The two second node transmission paths may be a routing route from the application platform to the opposite end (target ONU) and a routing route from the application platform to the OLT. The two second node transmission paths may also be a routing route from the target ONU to the opposite end (application platform) and a routing route from the target ONU to the OLT.
As shown in fig. 3, when the network probe is deployed in the target ONU, a traceroute command is sent to the platform and the OLT, respectively, and the two obtained second node transmission paths are T s and T olt1,Ts are R 1→R2→……→Rn →the application platform; t olt1 is the OLT. When the network probe is deployed in the application platform, a traceroute command is sent to the target ONU and the OLT respectively, and two obtained second node transmission paths are T onu and T olt2,Tonu, R n→Rn-1→……→R1→ONU;Tolt2 is R n→Rn-1→……→R1 and the OLT.
And determining the position of the OLT in the target network link in response to the comparison result of the two second node transmission paths so as to determine the first node transmission path of the target network link.
In this example embodiment, two second node transmission paths may be compared, and a difference node start position of the two second node transmission paths may be determined; the difference node is a node with different routing paths in the two second node transmission paths. Illustratively, as shown in FIG. 3, for T onu and T olt, the difference node occurs after the R 1 node, i.e., the node after the R 1 node is the difference node start position.
And determining the initial position of the difference node as the position of the OLT in the target network link.
In this example embodiment, the start position of the difference node may be taken as the position of the OLT, for example, in fig. 3, the node position after the R 1 node is the position of the OLT.
As can be seen by comparing the results returned by the traceroute commands sent from the two different locations, when the network probe is located at the ONU side, the first hop from the traceroute to the OLT is the OLT; when the network probe is located at the application platform side, the T onu and the T olt pass through the same gateway or router, and paths of the network probes at different positions reaching the OLT are different, and a routing path T olt corresponding to the network probe at the ONU side is far greater than a result at the application platform side. The difference in routing paths corresponding to the different probe locations can be applied to probe positioning when the system has only one network probe, i.e. to determine which end of the network link the network probe is located.
Illustratively, during execution of the traceroute command, each node in the network link may be represented by an IP address, i.e., one IP address corresponds to each node. The second node transmission path may be a path composed of IP addresses in order. When the adjacent IP addresses of the same IP address in the two routing paths are different, the different points are positioned as the insertion positions of the OLT. The location can be determined by a network probe at one end only.
In some embodiments, determining a device processing delay for each node in the first node transmission path based on the delay information for each segment of the routing path includes:
and respectively acquiring first delay information from the initial node to the destination node, second delay information from the initial node to the intermediate node and third delay information from the intermediate node to the destination node in the transmission path of the first node.
In this exemplary embodiment, the intermediate node refers to any routing node located between the start node and the destination node in the transmission path of the first node. The corresponding first delay information, second delay information and third delay information can be obtained by respectively sending Ping commands to the starting node, the intermediate node and the destination node.
And summing the second delay information and the third delay information, comparing the sum result with the first delay information, and determining the equipment processing delay of the intermediate node.
In this example embodiment, the device processing delay of the intermediate node may be determined according to the difference between the summation result and the first delay information, for example, half of the difference may be directly used as the device processing delay, and the difference may also be subjected to network interference term processing (such as a difference±an interference threshold Δ). The device processing delay may be further determined by averaging the difference results of multiple Ping commands, which is not limited in this example.
Illustratively, as shown in fig. 2, a Ping command may be sent to ONU C and OLT B by using a network probe in application platform a, to obtain delay information T AC from application platform a to ONU C and delay information T AB from application platform a to OLT B, respectively. And then, sending a Ping command by utilizing a network probe OLT B in the ONU C, and acquiring delay information T BC from the ONU C to the OLT B. As can be seen from fig. 2:
TAB＝t1+t2+t3，
TAC＝t1+t2+t4+t5，
TBC＝t3+t4+t5，
Therefore, the device processing delay of the intermediate node OLT can be determined to be:
t3＝(TBC+TAB-TAC)/2。
In the above formula, t 1、t3、t5 represents the device processing delay of the Ping command in the devices of the application platform a, the OLT B and the ONU C, t 2 represents the round-trip network transmission delay between the application platform a and the OLT B, and t 4 represents the round-trip network transmission delay between the OLT B and the ONU C.
In some embodiments, determining the device processing delay for each node in the first node transmission path based on the delay information for each segment of the routing path further comprises:
acquiring a plurality of groups of time delay data in a transmission path of a first node in a preset time period; each set of delay data includes first delay information, second delay information, and third delay information.
And determining a first delay information average value, a second delay information average value and a third delay information average value in the plurality of groups of delay data.
And determining the equipment processing time delay of the corresponding intermediate node by using the first time delay information average value, the second time delay information average value and the third time delay information average value.
In the present exemplary embodiment, the preset time period may be set according to a time interval of transmitting the Ping command, for example, to several times or several tens times the transmission time interval, which is not limited in the present example. Specifically, the method can be set according to actual conditions. For example, the time interval for transmitting Ping command is 1 second, and the preset period of time may be set to 30 seconds.
In a practical environment, executing the Ping command once includes processing time of the transmitting end, network transmission delay and processing time of the receiving end. Because the intermediate device is required to process Ping, and the result of executing Ping command each time is greatly affected by the network interference factor, in order to reduce the influence of the network interference factor on the accuracy of the processing delay of the device, a statistical method is adopted, that is, statistical features, such as average values, of delay information of Ping for a plurality of times in a preset time period are counted, and the device processing delay of each intermediate device is calculated by using the average values, so that the accuracy is improved.
In some embodiments, prior to determining the device processing latency of the intermediate node, the method further comprises: and respectively carrying out data filtering processing on the first delay information, the second delay information and the third delay information.
In this exemplary embodiment, the data filtering processing refers to filtering out data with larger deviation among the multiple sets of delay data obtained in the preset time period, that is, filtering out data with larger deviation among the first delay information, the second delay information and the third delay information. For example, a first filtering threshold, a second filtering threshold, and a third filtering threshold may be set for the first delay information, the second delay information, and the third delay information, respectively, and data greater than the first filtering threshold, the second filtering threshold, and the third filtering threshold may be filtered out. The normal data interval may be set for each delay data, and data outside the corresponding normal data interval may be filtered, or other data filtering modes may be adopted, which is not limited in this example.
In this example embodiment, standard deviations of the first delay information, the second delay information, and the third delay information in the preset time period may be calculated, and then a corresponding filtering threshold (including a first filtering threshold, a second filtering threshold, and a third filtering threshold) or a normal data interval may be determined according to each standard deviation information.
The above data filtering process can solve the problem that some delay information generates larger deviation due to serious network interruption or congestion in the system, and the data with larger deviation can have larger influence on the calculation of the final result (such as delay average value), thereby affecting the accuracy of the monitoring of the disclosure.
In some embodiments, referring to fig. 4, the network link monitoring method of one embodiment of the present disclosure is applied to an industrial PON system located in an enterprise campus/in-enterprise network. The monitoring of the network link may be performed by a user plane oriented application platform. The method may specifically comprise the following steps.
Firstly, respectively arranging network probes at two ends of a target network link.
And secondly, respectively sending a traceroute command to the opposite end and the Optical Line Terminal (OLT) through network probes at any one end so as to acquire two second node transmission paths.
And thirdly, comparing the two second node transmission paths, and determining the position of the OLT in the target network link to obtain the first node transmission path.
A fourth step of sending Ping commands to the opposite end and each node on a first node transmission path through network probes at two ends so as to acquire first delay information from a starting node to a destination node, second delay information from the starting node to an intermediate node and third delay information from the intermediate node to the destination node in the first node transmission path; the intermediate node is a routing node located between the start node and the destination node in the transmission path of the first node.
And periodically repeating the fourth step to obtain multiple groups of time delay data.
And fifthly, carrying out data filtering processing on multiple groups of time delay data.
And sixthly, calculating the average value of each type of time delay data in the plurality of groups of time delay data subjected to data filtering processing.
And seventhly, summing the second delay average value and the third delay average value, then making a difference between the sum result and the first delay average value, and determining the equipment processing delay of the intermediate node according to the difference result.
And eighth step, based on the equipment processing time delay of the intermediate node, determining the network transmission condition of each section of routing path.
The detailed description of each step in the foregoing embodiments may refer to the corresponding description in the foregoing embodiments, and will not be repeated herein.
In the industrial PON system, both uplink and downlink data traffic need to pass through the OLT, but due to transparent transmission, when executing a traceroute command, the OLT node of the path will not return, i.e. the routing path tracked by the traceroute lacks the OLT node, so it is first required to determine the position of the OLT in the network link, insert the OLT into the network link, and then acquire the inter-node delay information, which can monitor the network link more accurately. In fact, the OLT and the ONU are adjacent on the link, i.e., the OLT is closer to the ONU than the platform, and the present disclosure may improve the network link monitoring accuracy by sending a traceroute command to the OLT by the probe procedure to determine the location of the OLT.
In practice, because the delay information obtained by executing the Ping instruction includes two parts, namely network transmission delay and device processing delay, when the Ping command is sent to the router or gateway through which traceroute passes, the delay of the near-end device is far higher than that of the far-end device, because the processing time of the received Ping command is different by different types of devices, a large error is caused to the network delay of each path on the calculation link, and the accuracy of monitoring the network link is affected.
According to the method and the device, the network probes are arranged at two ends of the network link, the time delay information among different nodes is detected through the network probes, and then the equipment processing time delay of the intermediate node is determined by utilizing the time delay information among different nodes, so that the time delay information acquired by the Ping command can be divided into the equipment processing time delay and the network transmission time delay, the network transmission condition of the routing path is determined based on the equipment processing time delay and the network transmission time delay, namely whether overload/congestion phenomenon occurs in the node or the network transmission, and whether network terminal or node fault occurs or not is determined, thereby realizing accurate monitoring of the network link, improving the accuracy of monitoring the network link, and refining the monitoring granularity.
According to the method and the device, the network probe function is realized through the software program, the detection effect difference caused by the difference of different hardware devices can be shielded, the detection accuracy of the network probe is improved, and meanwhile, the deployment flexibility and the feasibility of the probe are improved. The method and the device can be applied to different industrial PON systems, change of monitoring effects caused by link differences of different PON systems is avoided, and good practicability is achieved.
Referring to fig. 5, in this exemplary embodiment, there is further provided a network link monitoring apparatus 500, which may include: a detection module 510, a first determination module 520, and a second determination module 530, wherein: the detection module 510 is configured to respectively arrange network probes at two ends of a target network link, and send an internet packet explorer to an opposite end and each node on a transmission path of a first node through the network probes, so as to obtain delay information of each section of routing path in the transmission path of the first node; the first node transmission path is used for indicating a transmission path of information to be transmitted on a target network link; a first determining module 520, configured to determine a device processing delay of each node in the first node transmission path based on the delay information of each segment of the routing path; a second determining module 530 is configured to determine a network transmission status of each routing path based on the device processing delay.
In one embodiment of the present disclosure, the apparatus 500 further comprises a tracking module and a third determination module; the tracking module is used for respectively sending route tracking commands to the opposite end and the Optical Line Terminal (OLT) through the network probe so as to acquire two second node transmission paths; and the third determining module is used for determining the position of the OLT in the target network link in response to the comparison result of the two second node transmission paths so as to determine the first node transmission path of the target network link.
In one embodiment of the present disclosure, the third determining module is further configured to: comparing the two second node transmission paths and determining the difference node starting positions of the two second node transmission paths; the difference node is a node with different routing paths in the two second node transmission paths; and determining the initial position of the difference node as the position of the OLT in the target network link.
In one embodiment of the disclosure, the second determining module includes an obtaining submodule and a determining submodule, where the obtaining submodule is configured to obtain first delay information from a start node to a destination node, second delay information from the start node to an intermediate node, and third delay information from the intermediate node to the destination node in the transmission path of the first node, respectively; the intermediate node is a routing node positioned between the starting node and the destination node in the transmission path of the first node; the determining submodule is used for summing the second delay information and the third delay information, comparing the summation result with the first delay information and determining equipment processing delay of the intermediate node.
In one embodiment of the present disclosure, the first determination module 520 may also be configured to: acquiring a plurality of groups of time delay data in a transmission path of a first node in a preset time period; each group of time delay data comprises first time delay information, second time delay information and third time delay information; determining a first delay information average value, a second delay information average value and a third delay information average value in a plurality of groups of delay data; and determining the equipment processing time delay of the corresponding intermediate node by using the first time delay information average value, the second time delay information average value and the third time delay information average value.
In one embodiment of the present disclosure, the apparatus 500 further includes a filtering module, where the filtering module is configured to perform data filtering processing on the first delay information, the second delay information, and the third delay information, respectively, before determining the device processing delay of the intermediate node.
The specific details of each module/unit involved in the monitoring device in the above embodiment have been described in detail in the corresponding monitoring method, and thus are not described herein.
As another aspect, the present application also provides a computer-readable medium that may be contained in the apparatus described in the above embodiments; or may be present alone without being fitted into the device. The computer-readable medium carries one or more programs which, when executed by a device, cause the device to implement the method in the embodiments described below. For example, the apparatus may implement the various steps shown in fig. 1-4, etc.
It should be noted that the computer readable medium shown in the present disclosure may be a computer readable signal medium or a computer readable storage medium, or any combination of the two. The computer readable storage medium can be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or a combination of any of the foregoing. More specific examples of the computer-readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the context of this disclosure, a computer-readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device. In the present disclosure, however, the computer-readable signal medium may include a data signal propagated in baseband or as part of a carrier wave, with the computer-readable program code embodied therein. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination of the foregoing. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device. Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to: wireless, wire, fiber optic cable, RF, etc., or any suitable combination of the foregoing.
In addition, in an exemplary embodiment of the present disclosure, an apparatus capable of implementing the above method is also provided. Those skilled in the art will appreciate that the various aspects of the present disclosure may be implemented as a system, method, or program product. Accordingly, various aspects of the disclosure may be embodied in the following forms, namely: an entirely hardware embodiment, an entirely software embodiment (including firmware, micro-code, etc.) or an embodiment combining hardware and software aspects may be referred to herein as a "circuit," module "or" system.
Referring to fig. 6, fig. 6 is a schematic structural diagram of a communication device according to an embodiment of the present application. As shown in fig. 6, the communication device 600 includes a processor 610, a memory 620, a transceiver 630, and a communication bus 640. The processor 610 is connected to the memory 620 and the transceiver 630, for example, the processor 610 may be connected to the memory 620 and the transceiver 630 by a communication bus 640. The processor 610 is configured to support the communication device to perform the corresponding functions of the monitoring methods of fig. 1-4. The processor 610 may be a central processing unit (Central Processing Unit, CPU), a network processor (Network Processor, NP), a hardware chip, or any combination thereof. The hardware chip may be an Application-specific integrated Circuit (ASIC), a programmable logic device (Programmable Logic Device, PLD), or a combination thereof. The PLD may be a complex Programmable Logic device (Complex Programmable Logic Device, CPLD), a Field-Programmable gate array (Field-Programmable GATE ARRAY, FPGA), general-purpose array Logic (GENERIC ARRAY Logic, GAL), or any combination thereof. The memory 620 is used for storing program codes and the like. Memory 620 may include volatile memory (VolatileMemory, VM), such as random access memory (Random Access Memory, RAM); the Memory 620 may also include a Non-Volatile Memory (NVM), such as Read-Only Memory (ROM), flash Memory (flash Memory), hard disk (HARD DISK DRIVE, HDD) or Solid state disk (Solid-state-STATE DRIVE, SSD); memory 620 may also include a combination of the types of memory described above.
The transceiver 630 is used to transmit or receive data.
The processor 610 may call the program code to perform the following operations:
Respectively arranging network probes at two ends of a target network link, and transmitting an Internet packet explorer to an opposite end and each node on a first node transmission path through the network probes so as to acquire delay information of each section of routing path in the first node transmission path; the first node transmission path is used for indicating a transmission path of information to be transmitted on a target network link; determining the equipment processing time delay of each node in the transmission path of the first node based on the time delay information of each section of the routing path; based on the device processing delay, network transmission conditions of each segment of routing path are determined.
Optionally, the processor 610 may further determine a device processing delay of each node in the transmission path of the first node based on the delay information of each segment of the routing path, and perform the following operations:
Respectively acquiring first delay information from an initial node to a destination node, second delay information from the initial node to an intermediate node and third delay information from the intermediate node to the destination node in a first node transmission path; the intermediate node is a routing node located between the start node and the destination node in the transmission path of the first node.
And summing the second delay information and the third delay information, comparing the sum result with the first delay information, and determining the equipment processing delay of the intermediate node.
Optionally, the processor 610 may further determine a device processing delay of each node in the transmission path of the first node based on the delay information of each segment of the routing path, and perform the following operations:
acquiring a plurality of groups of time delay data in a transmission path of a first node in a preset time period; each set of delay data includes first delay information, second delay information, and third delay information.
And determining a first delay information average value, a second delay information average value and a third delay information average value in the plurality of groups of delay data.
And determining the equipment processing time delay of the corresponding intermediate node by using the first time delay information average value, the second time delay information average value and the third time delay information average value.
Optionally, the processor 610 may further perform the following operations:
before determining the equipment processing time delay of the intermediate node, respectively performing data filtering processing on the first time delay information, the second time delay information and the third time delay information.
It should be noted that the implementation of each operation may also correspond to the corresponding description of the method embodiment shown with reference to fig. 1-4; the processor 610 may also cooperate with the transceiver 630 to perform other operations in the method embodiments described above.
From the above description of embodiments, those skilled in the art will readily appreciate that the example embodiments described herein may be implemented in software, or in combination with the necessary hardware. Thus, the technical solution according to the embodiments of the present disclosure may be embodied in the form of a software product, which may be stored in a non-volatile storage medium (which may be a CD-ROM, a usb disk, a mobile hard disk, etc.) or on a network, comprising several instructions to cause a device to perform a method according to the embodiments of the present disclosure.
Furthermore, the above-described figures are only schematic illustrations of processes included in the method according to the exemplary embodiments of the present disclosure, and are not intended to be limiting. It will be readily appreciated that the processes shown in the above figures do not indicate or limit the temporal order of these processes. In addition, it is also readily understood that these processes may be performed synchronously or asynchronously, for example, among a plurality of modules.
It should be noted that although the steps of the methods of the present disclosure are illustrated in a particular order in the figures, this does not require or imply that the steps must be performed in that particular order or that all of the illustrated steps must be performed in order to achieve desirable results. Additionally or alternatively, certain steps may be omitted, multiple steps combined into one step to perform, and/or one step decomposed into multiple steps to perform, etc., all are considered part of the present disclosure.
It should be understood that the present disclosure disclosed and defined herein extends to all alternative combinations of two or more of the individual features mentioned or evident from the text and/or drawings. All of these different combinations constitute various alternative aspects of the present disclosure. Embodiments of the present disclosure describe the best mode known for carrying out the disclosure and will enable one skilled in the art to utilize the disclosure.
Claims (9)
1. A network link monitoring method applied to a passive optical network PON system, the method comprising:
Respectively arranging network probes at two ends of a target network link, and sending an Internet packet explorer to an opposite end and each node on a first node transmission path through the network probes so as to acquire delay information of each section of routing path in the first node transmission path; the first node transmission path is used for indicating a transmission path of information to be transmitted on the target network link;
Respectively acquiring first delay information from an initial node to a destination node, second delay information from the initial node to an intermediate node and third delay information from the intermediate node to the destination node in the first node transmission path; the intermediate node is a routing node located between an initial node and a destination node in the transmission path of the first node;
summing the second delay information and the third delay information, comparing the sum result with the first delay information, and determining the equipment processing delay of the intermediate node;
And determining the network transmission condition of each section of routing path based on the equipment processing time delay.
2. The method according to claim 1, wherein the method further comprises:
respectively sending route tracking commands to an opposite end and an Optical Line Terminal (OLT) through the network probe so as to acquire two second node transmission paths;
and determining the position of the OLT in the target network link in response to the comparison result of the two second node transmission paths so as to determine the first node transmission path.
3. The method of claim 2, wherein the determining the location of the OLT in the target network link in response to the comparison of the two second node transmission paths comprises:
Comparing the two second node transmission paths, and determining the difference node starting positions of the two second node transmission paths; the difference node is a node with different routing paths in the two second node transmission paths;
And determining the initial position of the difference node as the position of the OLT in the target network link.
4. The method according to claim 1, wherein the method further comprises:
acquiring a plurality of groups of time delay data in the transmission path of the first node in a preset time period; each group of time delay data comprises first time delay information, second time delay information and third time delay information;
determining a first delay information average value, a second delay information average value and a third delay information average value in the plurality of groups of delay data;
and determining the equipment processing time delay of the corresponding intermediate node by using the first time delay information average value, the second time delay information average value and the third time delay information average value.
5. The method of claim 1, wherein prior to determining the device processing latency of the intermediate node, the method further comprises: and respectively carrying out data filtering processing on the first delay information, the second delay information and the third delay information.
6. A network link monitoring device applied to a passive optical network PON system, the device comprising:
the detection module is used for respectively arranging network probes at two ends of a target network link, and sending an Internet packet explorer to an opposite end and each node on a first node transmission path through the network probes so as to acquire delay information of each section of routing path in the first node transmission path; the first node transmission path is used for indicating a transmission path of information to be transmitted on the target network link;
The first determining module is used for respectively acquiring first delay information from a starting node to a destination node, second delay information from the starting node to an intermediate node and third delay information from the intermediate node to the destination node in the first node transmission path; the intermediate node is a routing node located between an initial node and a destination node in the transmission path of the first node; summing the second delay information and the third delay information, comparing the sum result with the first delay information, and determining the equipment processing delay of the intermediate node;
And the second determining module is used for determining the network transmission condition of each section of routing path based on the equipment processing time delay.
7. The apparatus of claim 6, wherein the apparatus further comprises:
The tracking module is used for respectively sending route tracking commands to the opposite end and the Optical Line Terminal (OLT) through the network probe so as to acquire two second node transmission paths;
And the third determining module is used for determining the position of the OLT in the target network link in response to the comparison result of the two second node transmission paths so as to determine the first node transmission path.
8. A communication device, comprising: a processor; and
A memory for storing executable instructions of the processor; wherein the processor is configured to perform the method of any of claims 1-5 via execution of the executable instructions.
9. A computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the method of any of claims 1-5.
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