CN106850337B - A kind of network quality detection method and device - Google Patents

Abstract

The invention discloses a network quality detection method, comprising: sending a detection task, where the detection task is used to instruct a collection device to collect a parameter set of a first network in sections, where the parameter set represents a transmission parameter of the first network; The first network is an end-to-end network; a parameter set collected by the collection device is received; the network quality of the first network is analyzed by using the parameter set, and a network quality detection result of the first network is obtained . The invention also discloses a network quality detection device.

Description

A kind of network quality detection method and device

technical field

The present invention relates to the field of communications, and in particular, to a network quality detection method and device.

Background technique

In an end-to-end video service system, there are two main factors that affect the user's playback experience: 1. Stream transmission delay and damage; 2. Interaction delay. These two factors constitute the video service quality.

The traditional method of measuring the video service quality from the content distribution network (CDN) to the terminal has certain defects: some methods have poor accuracy, and some methods are difficult to implement and have poor flexibility.

In addition, there is currently no effective measurement solution for the quality of the network service path between the CDN and the terminal.

SUMMARY OF THE INVENTION

In order to solve the existing technical problems, embodiments of the present invention provide a network quality detection method and device.

The technical solution of the embodiment of the present invention is realized as follows:

An embodiment of the present invention provides a network quality detection method, which is applied to a server, and the method includes:

sending a detection task, where the detection task is used to instruct the collection device to collect a parameter set of the first network in sections, where the parameter set represents a transmission parameter of the first network; the first network is an end-to-end network;

receiving a parameter set collected by the collection device;

Using the parameter set, the network quality of the first network is analyzed to obtain a network quality detection result of the first network.

In the above solution, the collection device is a terminal, and the receiving the parameter set collected by the collection device includes:

Receive the first parameter and the second parameter sent by the terminal; the first parameter represents the end-to-end signaling response delay in the first network; the second parameter represents the end-to-end data packet in the first network Transmission delay; wherein, the signaling response delay is obtained according to Real Time Streaming Protocol (RTSP) delay and traceroute delay;

Correspondingly, the first parameter and the second parameter are analyzed to obtain a network quality detection result of the first network.

In the above scheme, the method also includes:

According to the network topology structure of the first network and each hop routing gateway information in the traceroute routing information, determine the network topology path information of the first network corresponding to the terminal;

When the network topology path information indicates that there are at least two end-to-end routing paths, take the IP address as the dimension, aggregate and analyze the first parameters collected by the terminal for each routing path, and determine at least two routing paths The routing point with the largest and smallest transmission delay in the

Aggregate and analyze the second parameters collected by the terminal for each routing path, and determine the network segment with the largest and smallest transmission delay between routes in at least two routing paths;

Based on the determined network segment and routing point, and in combination with the routing service information of the first network, the routing information of the optimal service path and the worst service path of the terminal is determined.

In the above scheme, the method also includes:

According to the network topology structure of the first network and each hop routing gateway information in the traceroute routing information, determine the network topology path information of the first network corresponding to the terminal;

When the network topology path information indicates that there is one end-to-end routing path, a time-sharing dynamic baseline model is established according to the first parameter and the second parameter collected within the preset time period of the terminal; the model reflects the network with different service times segment quality;

And the problem point and time when the network quality of the first network is abnormal is determined on the model.

In the above solution, the collection device includes a first CDN node, a second CDN node, and a terminal; the network between the first CDN node and the terminal is the first network; the second CDN node is an upper-level node of the first CDN node;

The receiving the parameter set collected by the collecting device includes:

receiving the third parameter sent by the second CDN node;

receiving the fourth parameter and the fifth parameter sent by the first CDN node;

Receive the sixth parameter sent by the terminal; the third parameter and the fourth parameter represent the service quality indicator of the link of the second CDN node facing the first CDN node; the fifth parameter and the sixth parameter represent the link of the first CDN node facing the terminal service quality indicators;

Correspondingly, the third parameter, the fourth parameter, the fifth parameter and the sixth parameter are analyzed to obtain the network quality detection result of the first network.

In the above solution, the third parameter, the fourth parameter, the fifth parameter and the sixth parameter are analyzed to obtain the network quality detection result of the first network, including:

Using the third parameter, the fourth parameter, the fifth parameter and the sixth parameter, combined with the set threshold and the historical trend of the network service link, the network quality detection result of the first network is obtained.

In the above solution, sending detection tasks includes:

When the playback record of the terminal is abnormal, a detection task is sent.

An embodiment of the present invention further provides a network quality detection method, which is applied to a terminal, and the method includes:

Receive a detection task; the detection task is used to instruct the terminal to collect a parameter set of the first network in sections, where the parameter set represents the transmission parameters of the first network; the first network is the end-to-end network where the terminal is located network;

In response to the detection task, a first parameter and a second parameter are collected; the first parameter represents the end-to-end signaling response delay in the first network; the second parameter represents the mid-to-end of the first network. The data packet transmission delay of the terminal; wherein, the signaling response delay is obtained according to the RTSP delay and the traceroute delay;

The first parameter and the second parameter are issued.

In the above scheme, the collection of the first parameter includes:

Send an RTSP request to the first CDN node; the first CDN node is the opposite end of the terminal;

and send a traceroute request to the first CDN node;

Determine the RTSP delay according to the sent RTSP request and the receiving status of the RTSP response; and determine the traceroute delay according to the sent traceroute request and the receiving status of the traceroute response;

The first parameter is obtained by using RTSP delay and traceroute delay.

In the above solution, the RTSP delay and the traceroute delay are used to obtain the first parameter, including:

The first parameter is obtained by calculating the difference between the RTSP delay and the traceroute delay.

In the above scheme, the collection of the second parameter includes:

The second parameter is obtained by collecting the delay of the IP packet from the first CDN node to the terminal.

An embodiment of the present invention further provides a network quality detection method, which is applied to a collection device, and the method includes:

receiving a detection task; the detection task is used to instruct the collection device to collect a parameter set of the first network in sections, where the parameter set represents a transmission parameter of the first network;

In response to the detection task, collect the service quality index of the corresponding link according to its position in the first network and the direction of the end-to-end network service link;

Issue the collected service quality indicators.

In the above solution, the collection of quality of service indicators of the corresponding link includes:

Obtain the IP address and port of the service link;

Use IP address and port to capture data packets;

The captured data packets are analyzed to obtain the service quality index of the corresponding link.

In the above solution, when the collection device is a terminal, the IP address and port are used to capture data packets, including:

Use the IP address and port to capture data packets in the incoming direction of the terminal; wherein,

The first network is the end-to-end network where the terminal is located; the obtained service quality indicator is the sixth parameter.

In the above solution, when the collection device is the first CDN node, the use of the IP address and port to capture data packets includes:

Use the IP address and port to capture data packets in the inbound and outbound directions of the first CDN node; wherein,

The network between the first CDN node and the terminal is the first network, and the obtained service quality index is the fourth parameter and the fifth parameter; the fifth parameter and the sixth parameter represent the service quality index of the first CDN node facing the terminal link.

In the above solution, when the collection device is the second CDN node, the use of the IP address and port to capture data packets includes:

Using the IP address and port, the data packet is captured in the outbound direction of the second CDN node; wherein,

The second CDN node is an upper-level node of the first CDN node, and the obtained service quality index is the third parameter; the third parameter and the fourth parameter represent the service quality index of the second CDN node facing the link of the first CDN node.

The embodiment of the present invention also provides a network quality detection device, including:

a first sending unit, configured to send a detection task, where the detection task is used to instruct the collection device to collect a parameter set of the first network in sections, where the parameter set represents the transmission parameters of the first network; the first network is end-to-end network;

a first receiving unit, configured to receive the parameter set collected by the collection device;

An analysis unit, configured to use the parameter set to analyze the network quality of the first network to obtain a network quality detection result of the first network.

In the above scheme, the first receiving unit is specifically used for:

Receive the first parameter and the second parameter sent by the terminal; the first parameter represents the end-to-end signaling response delay in the first network; the second parameter represents the end-to-end data packet in the first network Transmission delay; wherein, the signaling response delay is obtained according to the real-time streaming protocol RTSP delay and the traceroute delay;

The analyzing unit is configured to analyze the first parameter and the second parameter to obtain a network quality detection result of the first network.

In the above scheme, the analysis unit is also used for:

According to the network topology structure of the first network and each hop routing gateway information in the traceroute routing information, determine the network topology path information of the first network corresponding to the terminal;

When the network topology path information indicates that there are at least two end-to-end routing paths, according to the network topology structure of the first network, with the IP address as the dimension, the first parameter for each routing path collected by the terminal is performed. Aggregate and analyze to determine the routing point with the largest and smallest transmission delay in at least two routing paths;

Aggregating and analyzing the second parameters collected by the terminal for each routing path, and determining the network segment with the largest and smallest transmission delay between routes in at least two routing paths; and

Based on the determined network segment and routing point, and in combination with the routing service information of the first network, the routing information of the optimal service path and the worst service path of the terminal is determined.

In the above scheme, the analysis unit is also used for:

According to the network topology structure of the first network and each hop routing gateway information in the traceroute routing information, determine the network topology path information of the first network corresponding to the terminal;

When the network topology path information indicates that there is one end-to-end routing path, a time-sharing dynamic baseline model is established according to the first parameter and the second parameter collected within the preset time period of the terminal; the model reflects the network with different service times segment quality;

And the problem point and time when the network quality of the first network is abnormal is determined on the model.

In the above solution, the collection device includes a first CDN node, a second CDN node and a terminal; the network between the first CDN node and the terminal is the first network; the second CDN node is an upper-level node of the first CDN node; The first receiving unit is specifically used for:

receiving the third parameter sent by the second CDN node;

receiving the fourth parameter and the fifth parameter sent by the first CDN node;

Receive the sixth parameter sent by the terminal; the third parameter and the fourth parameter represent the service quality indicator of the link of the second CDN node facing the first CDN node; the fifth parameter and the sixth parameter represent the link of the first CDN node facing the terminal service quality indicators;

The analyzing unit is specifically configured to: analyze the third parameter, the fourth parameter, the fifth parameter and the sixth parameter to obtain a network quality detection result of the first network.

An embodiment of the present invention further provides a network quality detection device, including:

The second receiving unit is configured to receive a detection task; the detection task is used to instruct the terminal to collect a parameter set of the first network in sections, where the parameter set represents the transmission parameters of the first network; the first network is the the end-to-end network where the terminal is located;

A first collection unit, configured to collect a first parameter and a second parameter in response to the detection task; the first parameter represents the end-to-end signaling response delay in the first network; the second parameter represents the Describe the end-to-end packet transmission delay in the first network; wherein, the signaling response delay is obtained according to RTSP delay and traceroute delay;

The second sending unit is configured to send the first parameter and the second parameter.

In the above scheme, the first collection unit is specifically used for:

Send an RTSP request to the first CDN node; the first CDN node is the opposite end of the terminal;

and send a traceroute request to the first CDN node;

Determine the RTSP delay according to the sent RTSP request and the receiving status of the RTSP response; and determine the traceroute delay according to the sent traceroute request and the receiving status of the traceroute response;

The first parameter is obtained by using RTSP delay and traceroute delay.

In the above scheme, the first collection unit is specifically used for:

The second parameter is obtained by collecting the delay of the IP packet from the first CDN node to the terminal.

The embodiment of the present invention also provides a network quality detection device, including:

a third receiving unit, configured to receive a detection task; the detection task is used to instruct the collection device to collect a parameter set of the first network in sections, where the parameter set represents a transmission parameter of the first network;

a second collection unit, configured to respond to the detection task and collect the service quality index of the corresponding link according to its position in the first network and the direction of the end-to-end network service link;

The third sending unit is configured to send the collected service quality indicators.

In the above scheme, the second collection unit is specifically used for:

Obtain the IP address and port of the service link;

Use IP address and port to capture data packets;

The captured data packets are analyzed to obtain the service quality index of the corresponding link.

In the network quality detection method and device provided by the embodiments of the present invention, a detection task is sent, where the detection task is used to instruct a collection device to collect a parameter set of a first network in sections, where the parameter set represents a transmission parameter of the first network; The first network is an end-to-end network; a parameter set collected by the collection device is received; the network quality of the first network is analyzed by using the parameter set, and a network quality detection result of the first network is obtained , segment the network for detection, so that the network quality can be detected accurately and quickly.

Description of drawings

In the drawings, which are not necessarily to scale, like reference numerals may describe like parts in the different views. Similar reference numbers with different letter suffixes may denote different instances of similar components. The accompanying drawings generally illustrate, by way of example and not limitation, the various embodiments discussed herein.

1 is a schematic flowchart of a method for detecting network quality in an embodiment of the present invention;

FIG. 2 is a schematic flowchart of another method for network quality detection according to an embodiment of the present invention;

FIG. 3 is a schematic flowchart of another method for network quality detection according to an embodiment of the present invention;

4 is a schematic structural diagram of a network quality detection apparatus according to Embodiment 2 of the present invention;

5 is a schematic structural diagram of another network quality detection apparatus according to Embodiment 2 of the present invention;

FIG. 6 is a schematic structural diagram of another network quality detection apparatus according to the second embodiment of the present invention;

FIG. 7 is a schematic diagram of the system architecture of Embodiment 3 of the present invention;

8 is a schematic diagram of a process of collecting request routing information and time delay from a terminal to an access network of a CDN system according to Embodiment 3 of the present invention;

9 is a schematic flowchart of a method for detecting and analyzing transmission delay from a CDN system to a terminal according to Embodiment 3 of the present invention;

FIG. 10 is a schematic diagram of a process of collecting a service quality indicator of a unicast service link from a CDN system to a terminal according to Embodiment 3 of the present invention;

FIG. 11 is a schematic diagram of a unicast service link in Embodiment 3 of the present invention.

Detailed ways

The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

Traditionally, there are two main ways to measure the quality of video service from CDN to terminal:

The first way: based on the reported terminal indicators, the service quality of the CDN and the access network is calculated and summarized.

This method starts from the statistics and summary results of the data, and gives the possible reasons. This method has certain defects: First, it needs to be analyzed based on the data volume of large-scale set-top boxes. This is because the larger the set-top box data volume, the higher the analysis results The higher the reliability; second, because the analyzed data is only the data of the set-top box itself, and does not involve the data of the network, so when there are many possible reasons, the more difficult it is for users to analyze, and accurate positioning is impossible.

The second way: Capture packets on the intermediate transmission network and then perform stream matching analysis to obtain service quality.

This method is difficult to calculate, and it is difficult to match the individual code streams from the CDN to the set-top box, and the flexibility is poor.

It can be seen from the above description that the current measurement methods all have certain defects: some measurement methods are inaccurate, and some measurement methods are difficult to implement and less flexible.

In addition, at present, the quality of the network service path between the CDN and the terminal cannot be effectively measured.

Based on this, in various embodiments of the present invention: sending a detection task, where the detection task is used to instruct a collection device to collect a parameter set of the first network in sections, where the parameter set represents a transmission parameter of the first network; The first network is an end-to-end network; a parameter set collected by the collection device is received; the network quality of the first network is analyzed by using the parameter set, and a network quality detection result of the first network is obtained .

Example 1

An embodiment of the present invention provides a network quality detection method, which is applied to a server. As shown in FIG. 1 , the method includes:

Step 101: Send a detection task;

Here, the detection task is used to instruct the collection device to collect a parameter set of the first network in sections, where the parameter set represents a transmission parameter of the first network; the first network is an end-to-end network.

Wherein, in practical application, the first network may be a video service network from a CDN node to a terminal.

Step 102: Receive a parameter set collected by the collection device;

Step 103: Using the parameter set, analyze the network quality of the first network to obtain a network quality detection result of the first network.

Among them, in practical application, one manifestation of the network quality is the interaction delay (transmission delay), so it is necessary to collect the interaction delay of the network in sections to analyze the network quality.

Based on this, in an embodiment, when the collection device is a terminal, the specific implementation of step 102 includes:

The server receives the first parameter and the second parameter sent by the terminal; the first parameter represents the end-to-end signaling response delay in the first network; the second parameter represents the end-to-end data in the first network Packet transmission delay; wherein, the signaling response delay is obtained according to RTSP delay and traceroute delay.

Correspondingly, in step 103, the server analyzes the first parameter and the second parameter to obtain a network quality detection result of the first network.

In this embodiment, when there are at least two end-to-end routing paths, the routing paths may also be presented based on the collected parameter set.

Based on this, the method may also include:

The server determines the network topology path information of the first network corresponding to the terminal according to the network topology structure of the first network and each hop routing gateway information in the traceroute routing information;

When the network topology path information indicates that there are at least two end-to-end routing paths, the server uses the IP address as a dimension to aggregate and analyze the first parameters collected by the terminal for each routing path, and determine at least two routes. The routing point with the largest and smallest transmission delay in the path;

Aggregate and analyze the second parameters collected by the terminal for each routing path, and determine the network segment with the largest and smallest transmission delay between routes in at least two routing paths;

Based on the determined network segment and routing point, and in combination with the routing service information of the first network, the routing information of the optimal service path and the worst service path of the terminal is determined.

Of course, when the network topology path information indicates that there is one end-to-end routing path, the server may establish a time-sharing dynamic baseline model according to the first parameter and the second parameter collected within the preset time period of the terminal; the models reflect different quality of network segmentation at service time;

And the problem point and time when the network quality of the first network is abnormal is determined on the model.

Another manifestation of the network quality is the transmission quality of the code stream (the quality of the network service path), so it is necessary to collect the transmission quality of the network in sections to analyze the network quality.

Based on this, in an embodiment, the collection device includes a first CDN node, a second CDN node, and a terminal; the network between the first CDN node and the terminal is the first network; the second CDN node is the first CDN node the upper-level node; the specific implementation of step 102 may include:

The server receives the third parameter sent by the second CDN node;

The server receives the fourth parameter and the fifth parameter sent by the first CDN node;

The server receives the sixth parameter sent by the terminal; the third parameter and the fourth parameter represent the service quality indicator of the link of the second CDN node facing the first CDN node; the fifth parameter and the sixth parameter represent the first CDN node facing the terminal chain Road service quality indicators.

Correspondingly, in step 103, the server analyzes the third parameter, the fourth parameter, the fifth parameter and the sixth parameter to obtain a network quality detection result of the first network.

Wherein, the analyzing the third parameter, the fourth parameter, the fifth parameter and the sixth parameter to obtain the network quality detection result of the first network, including:

Using the third parameter, the fourth parameter, the fifth parameter and the sixth parameter, combined with the set threshold and the historical trend of the network service link, the network quality detection result of the first network is obtained.

For the detection of the transmission quality, the delivery of the detection task can be triggered according to the playback record of the terminal.

Based on this, in an embodiment, the specific implementation of step 101 includes:

When the playback record of the terminal is abnormal, the server sends a detection task.

Correspondingly, in order to implement the network quality detection method according to the embodiment of the present invention, a collection device needs to collect corresponding parameters.

Therefore, an embodiment of the present invention also provides a network quality detection method, which is applied to a terminal. As shown in FIG. 2 , the method includes:

Step 201: receive a detection task;

Here, the detection task is used to instruct the terminal to collect a parameter set of the first network in sections, where the parameter set represents the transmission parameters of the first network; the first network is the end-to-end network where the terminal is located.

Step 202: in response to the detection task, collect the first parameter and the second parameter;

Here, the first parameter represents the end-to-end signaling response delay in the first network; the second parameter represents the end-to-end data packet transmission delay in the first network.

Wherein, the signaling response delay is obtained according to RTSP delay and traceroute delay.

The collecting the first parameter includes:

Send an RTSP request to the first CDN node; the first CDN node is the opposite end of the terminal;

and send a traceroute request to the first CDN node;

Determine the RTSP delay according to the sent RTSP request and the receiving status of the RTSP response; and determine the traceroute delay according to the sent traceroute request and the receiving status of the traceroute response;

The first parameter is obtained by using RTSP delay and traceroute delay.

Wherein, the RTSP delay and the traceroute delay are used to obtain the first parameter, including:

The first parameter is obtained by calculating the difference between the RTSP delay and the traceroute delay.

The collecting the second parameter includes:

The second parameter is obtained by collecting the delay of the IP packet from the first CDN node to the terminal.

Step 203: Send the first parameter and the second parameter.

The embodiment of the present invention also provides a network quality detection method, which is applied to a collection device. As shown in FIG. 3 , the method further includes:

Step 301: Receive a detection task;

Here, the detection task is used to instruct the collection device to collect a parameter set of the first network in sections, where the parameter set represents a transmission parameter of the first network.

Step 302: In response to the detection task, collect the service quality indicator of the corresponding link according to its position in the first network and the direction of the end-to-end network service link;

Specifically, obtain the IP address and port of the service link;

Use IP address and port to capture data packets;

The captured data packets are analyzed to obtain the service quality index of the corresponding link.

Here, when the collection device is a terminal, the use of the IP address and port to capture data packets includes:

Use the IP address and port to capture data packets in the incoming direction of the terminal; wherein,

The first network is the end-to-end network where the terminal is located; the obtained service quality indicator is the sixth parameter.

When the collection device is the first CDN node, the use of the IP address and port to capture data packets includes:

Use the IP address and port to capture data packets in the inbound and outbound directions of the first CDN node; wherein,

The network between the first CDN node and the terminal is the first network; the obtained service quality indicators are the fourth parameter and the fifth parameter.

When the collection device is the second CDN node, the use of the IP address and port to capture data packets includes:

Using the IP address and port, the data packet is captured in the outbound direction of the second CDN node; wherein,

The second CDN node is an upper-level node of the first CDN node; the obtained service quality indicator is the third parameter.

That is, the second CDN node is a dependent node of the first CDN node.

The fifth parameter and the sixth parameter represent the service quality indicator of the first CDN node facing the terminal link; the third parameter and the fourth parameter represent the service quality indicator of the second CDN node facing the first CDN node link.

Step 303: Send the collected service quality indicators.

In the network quality detection method provided by the embodiment of the present invention, a detection task is sent, where the detection task is used to instruct a collection device to collect a parameter set of the first network in sections, where the parameter set represents the transmission parameters of the first network; the The first network is an end-to-end network; the parameter set collected by the collection device is received; the network quality of the first network is analyzed by using the parameter set, the network quality detection result of the first network is obtained, and the network quality of the first network is obtained. The network segment is detected, so that the network quality can be detected accurately and quickly.

In addition, the third parameter sent by the second CDN node is received; the fourth parameter and the fifth parameter sent by the first CDN node are received; the sixth parameter sent by the terminal is received; the third parameter and the fourth parameter represent the second CDN node The service quality index for the link of the first CDN node; the fifth parameter and the sixth parameter represent the service quality index of the first CDN node for the terminal link; correspondingly, the third parameter, the fourth parameter, the fifth parameter And the sixth parameter is analyzed to obtain the network quality detection result of the first network, and the service link segment is detected. In this way, the end-to-end network service path quality can be detected correctly and quickly.

Embodiment 2

In order to implement the method of the embodiment of the present invention, the present embodiment provides a network quality detection apparatus, which is set on a server. As shown in FIG. 4 , the apparatus includes:

The first sending unit 41 is configured to send a detection task, where the detection task is used to instruct the collection device to collect a parameter set of the first network in sections, where the parameter set represents the transmission parameters of the first network; the first network is an end-to-end network;

a first receiving unit 42, configured to receive the parameter set collected by the collection device;

The analyzing unit 43 is configured to analyze the network quality of the first network by using the parameter set to obtain a network quality detection result of the first network.

Wherein, in practical application, the first network may be a video service network from a CDN node to a terminal.

In practical application, one manifestation of network quality is the interaction delay (transmission delay), so it is necessary to collect the interaction delay of the network in sections to analyze the network quality.

Based on this, in an embodiment, the first receiving unit 42 is specifically configured to:

When the collection device is a terminal, receive the first parameter and the second parameter sent by the terminal; the first parameter represents the end-to-end signaling response delay in the first network; the second parameter represents the The end-to-end data packet transmission delay in the first network; wherein, the signaling response delay is obtained according to RTSP delay and traceroute delay;

The analyzing unit 43 is configured to analyze the first parameter and the second parameter to obtain a network quality detection result of the first network.

In this embodiment, when there are at least two end-to-end routing paths, the routing paths may also be presented based on the collected parameter set, and the analysis unit 43 is further configured to:

According to the network topology structure of the first network and each hop routing gateway information in the traceroute routing information, determine the network topology path information of the first network corresponding to the terminal;

When the network topology path information indicates that there are at least two end-to-end routing paths, according to the network topology structure of the first network, with the IP address as the dimension, the first parameter for each routing path collected by the terminal is performed. Aggregate and analyze to determine the routing point with the largest and smallest transmission delay in at least two routing paths;

Aggregating and analyzing the second parameters collected by the terminal for each routing path, and determining the network segment with the largest and smallest transmission delay between routes in at least two routing paths; and

Based on the determined network segment and routing point, and in combination with the routing service information of the first network, the routing information of the optimal service path and the worst service path of the terminal is determined.

Certainly, when the network topology path information indicates that there is one end-to-end routing path, the analysis unit 43 may establish a time-sharing dynamic baseline model according to the first parameter and the second parameter collected within the preset time period of the terminal; The above model reflects the network segmentation quality at different service times;

And the problem point and time when the network quality of the first network is abnormal is determined on the model.

Another manifestation of the network quality is the transmission quality of the code stream (the quality of the network service path), so it is necessary to collect the transmission quality of the network in sections to analyze the network quality.

Based on this, in an embodiment, the collection device includes a first CDN node, a second CDN node, and a terminal; the network between the first CDN node and the terminal is the first network; the second CDN node is the first CDN node The upper-level node; the first receiving unit 42 is specifically used for:

The server receives the third parameter sent by the second CDN node;

The server receives the fourth parameter and the fifth parameter sent by the first CDN node;

The server receives the sixth parameter sent by the terminal; the third parameter and the fourth parameter represent the service quality indicator of the link of the second CDN node facing the first CDN node; the fifth parameter and the sixth parameter represent the first CDN node facing the terminal chain Road service quality indicators;

The analyzing unit 43 is specifically configured to: analyze the third parameter, the fourth parameter, the fifth parameter and the sixth parameter to obtain a network quality detection result of the first network.

Wherein, the analyzing the third parameter, the fourth parameter, the fifth parameter and the sixth parameter to obtain the network quality detection result of the first network, including:

The analyzing unit 43 obtains the network quality detection result of the first network by using the third parameter, the fourth parameter, the fifth parameter and the sixth parameter in combination with the set threshold and the historical trend of the network service link.

For the detection of the transmission quality, the delivery of the detection task can be triggered according to the playback record of the terminal.

Based on this, in an embodiment, when the playback record of the terminal is abnormal, the first sending unit 41 sends a detection task.

In practical application, the first sending unit 41 and the first receiving unit 42 may be implemented by a processor in the network quality detection device combined with a transceiver; the analysis unit 43 may be implemented by a processor in the network quality detection device.

In order to implement the method of the embodiment of the present invention, the embodiment further provides a network quality detection apparatus, which is set at the terminal, as shown in FIG. 5 , the apparatus includes:

The second receiving unit 51 is configured to receive a detection task; the detection task is used to instruct the terminal to collect a parameter set of the first network in sections, where the parameter set represents the transmission parameters of the first network; the first network is the end-to-end network where the terminal is located;

The first collection unit 52 is configured to collect the first parameter and the second parameter in response to the detection task; the first parameter represents the end-to-end signaling response delay in the first network; the second parameter represents the The end-to-end data packet transmission delay in the first network; wherein, the signaling response delay is obtained according to RTSP delay and traceroute delay;

The second sending unit 53 is configured to send the first parameter and the second parameter.

Wherein, the first collection unit 52 is specifically used for:

Send an RTSP request to the first CDN node; the first CDN node is the opposite end of the terminal;

and send a traceroute request to the first CDN node;

Determine the RTSP delay according to the sent RTSP request and the receiving status of the RTSP response; and determine the traceroute delay according to the sent traceroute request and the receiving status of the traceroute response;

The first parameter is obtained by using RTSP delay and traceroute delay.

Wherein, the RTSP delay and the traceroute delay are used to obtain the first parameter, including:

The first collection unit 52 calculates the difference between the RTSP delay and the traceroute delay to obtain the first parameter.

The first collection unit 52 is specifically used for:

The second parameter is obtained by collecting the delay of the IP packet from the first CDN node to the terminal.

In practical applications, the second receiving unit 51 and the second sending unit 53 can be implemented by a transceiver in the network quality detection device; the first collection unit 52 can be implemented by a processor in the network quality detection device combined with the transceiver.

This embodiment also provides a network quality detection device, which is set in the collection device. As shown in FIG. 6 , the device includes:

The third receiving unit 61 is configured to receive a detection task; the detection task is used to instruct the collection device to collect a parameter set of the first network in sections, where the parameter set represents a transmission parameter of the first network;

The second collection unit 62 is configured to, in response to the detection task, collect the service quality index of the corresponding link according to its position in the first network and the direction of the end-to-end network service link;

The third sending unit 63 is configured to send the collected service quality indicators.

Wherein, the second collection unit is specifically used for:

Obtain the IP address and port of the service link;

Use IP address and port to capture data packets;

The captured data packets are analyzed to obtain the service quality index of the corresponding link.

Wherein, when the collection device is a terminal, the use of the IP address and port to capture data packets includes:

The second collection unit 62 uses the IP address and port to capture data packets in the incoming direction of the terminal; wherein,

The first network is the end-to-end network where the terminal is located; the obtained service quality indicator is the sixth parameter.

When the collection device is the first CDN node, the use of the IP address and port to capture data packets includes:

The second collection unit 62 uses the IP address and port to capture data packets in the inbound and outbound directions of the first CDN node; wherein,

The network between the first CDN node and the terminal is the first network; the obtained service quality indicators are the fourth parameter and the fifth parameter.

When the collection device is the second CDN node, the use of the IP address and port to capture data packets includes:

The second collection unit 62 uses the IP address and port to capture data packets in the outbound direction of the second CDN node; wherein,

The second CDN node is an upper-level node of the first CDN node; the obtained service quality indicator is the third parameter.

That is, the second CDN node is a dependent node of the first CDN node.

Wherein, the fifth parameter and the sixth parameter represent the service quality indicator of the first CDN node facing the terminal link; the third parameter and the fourth parameter represent the service quality indicator of the second CDN node facing the first CDN node link.

In practical application, the third receiving unit 61 and the third sending unit 63 may be implemented by a transceiver in the network quality detection apparatus; the second collection unit 62 may be implemented by a processor in the network quality detection apparatus.

Embodiment 3

Based on Embodiments 1 and 2, this embodiment describes in detail the network quality detection process of the embodiment of the present invention.

In this embodiment, the end-to-end network is a network from a CDN node to a terminal.

From the perspective of the entire networking process of the terminal video service, the involved network elements and equipment include: CDN node, bearer network, access network, and terminal equipment; based on this networking architecture, in this embodiment of the present invention, the two To establish a video network service quality index system from the CDN system to the terminal, specifically, the network service quality is detected from the two aspects of code stream transmission and interaction delay. Among them, the interaction delay refers to: the transmission delay from the CDN system to the terminal; the code stream transmission refers to: the code stream transmission within the CDN system and the comparative analysis of the code stream transmission quality from the CDN system to the terminal.

FIG. 7 is a schematic diagram of the system architecture of this embodiment. As can be seen from Figure 7, the core components include eight parts, namely: system task management module, data sending and receiving module, data analysis module, bearer network data collection module, access network data collection module, CDN node data Acquisition module and terminal data acquisition module. in,

The system task management module, data sending and receiving module, and data analysis module are deployed on the server, that is, deployed locally, while the bearer network data collection module, access network data collection module, CDN node data collection module, and terminal data collection module perform remote deploy.

The system task management module is responsible for managing and scheduling the collection tasks of each data collection module; that is, the management system and the task management and task synchronization of each data collection module;

The data sending and receiving module is used to send the collection task, and receive the data collected by each data collection module, and analyze the received collected data, so that the data analysis module can analyze;

The data analysis module mainly analyzes the network quality based on the data collected by each data collection module;

The bearer network data collection module is mainly used to collect the resources of the bearer network, including resource grouping, routing information, etc., according to which the topology structure of the bearer network can be obtained;

The access network data collection module is mainly used to collect the resources of the access network, including resource grouping, routing information, etc., according to which the topological structure of the access network can be obtained.

Here, in actual application, the method of http+json (the format of the reported collection data is json format) can be used for task distribution and data reporting. The start and stop of the collection task can use the synchronous message interface, and the report of the collected data is Asynchronous message interface can be used for processing.

Based on the system structure shown in FIG. 7 , the method for detecting and analyzing the transmission delay from the CDN system to the terminal is described below.

First, the process of collecting the request routing information and time delay from the terminal to the access network of the CDN system is described.

As shown in Figure 8, the process mainly includes:

Step 801: The system task management module issues a delay analysis task to the terminal;

Step 802: After receiving the task, the terminal data collection module of the terminal initiates an RTSP request to the CDN system, and collects the delay of the RTSP response;

Here, the collected RTSP response delay may be called RTSP delay, which may be considered as a kind of protocol signaling information.

Step 803: The terminal data collection module initiates a traceroute request to the CDN system, and collects traceroute routing information and corresponding delay;

Here, the collected traceroute routing information includes gateway jumping and other related information.

Step 804: The terminal data collection module initiates an IP packet transmission delay analysis task, specifically, records the IP packet delay from the CDN node to the terminal.

After the task is over, the collected data results are reported to the data analysis module through the data sending and receiving module to analyze the data.

As can be seen from the above description, in the process of collecting the request routing information and delay from the terminal to the access network of the CDN system, first, the terminal data collection module initiates a test request and collects basic data; Data, analyze RTSP delay, traceroute routing delay, and IP packet delay from CDN node to terminal, and finally report the delay analysis result to the data analysis module.

After the data analysis module obtains the parameters of RTSP delay, traceroute routing delay, and IP packet delay from the CDN node to the terminal reported by the terminal data acquisition module, it analyzes these parameters and analyzes the network quality of the network from the CDN system to the terminal. Test results.

Specifically, first, the data analysis module calculates the signaling response delay of the CDN system (the CDN node's response to the terminal's request) according to the traceroute routing delay and RTSP delay, and uses the IP packet delay to calculate the CDN node-to-terminal delay packet transmission delay.

Among them, the data packet transmission delay from the CDN node to the terminal = Transmission Control Protocol (TCP) chain establishment delay + IP packet transmission delay;

Signaling response delay of CDN system=RTSP delay-total delay of traceroute route.

Next, analyze the network quality detection result of the network from the CDN system to the terminal according to the calculated result;

Specifically, for the signaling response delay of the CDN system, when the signaling response delay of the CDN system shows a deterioration trend (by comparing the set threshold and the horizontal time, it can be known whether the signaling response delay of the CDN system has a deterioration trend or not ), and analyze whether it is due to the influence of the CDN system itself or the intermediate network. When the RTSP delay shows a deteriorating trend (through the set threshold and horizontal time comparison, you can know whether the RTSP delay shows a deterioration trend), indicating that the CDN system The self-load is very high, so that the response time to the terminal may be prolonged or timed out. When the RTSP delay is normal, it means that the intermediate network is the cause. You can use the routing gateway information of each hop in the traceroute route and the delay of each hop to know which section of the route is by setting the threshold and comparing the horizontal time. An exception occurred in the path.

For the data transmission delay, when the data packet transmission delay is degraded ((by comparing the set threshold and the horizontal time, it can be known whether the data packet transmission delay shows a deterioration trend)), it means that the CDN node itself serves normally and the intermediate transmission network is not Stablize.

To sum up, the method for detecting and analyzing the transmission delay from the CDN system to the terminal, as shown in Figure 9, mainly includes:

First, the terminal sends an RTSP request to the CDN node, collects RTSP delay, counts traceroute routing information from the terminal to the CDN system and the corresponding delay, and counts the data packet transmission delay from the CDN node to the terminal (step 901);

Next, compare the obtained RTSP delay, data packet transmission delay, and traceroute routing delay with threshold and horizontal time (step 902);

Finally, the analysis result of the transmission delay from the CDN system to the terminal is obtained (step 903).

In addition, in practical application, the data analysis module can also provide routing services at all levels from the CDN system to the terminal intermediate network.

Specifically, the system task management module initiates a batch delay collection process as shown in Figure 8 to the terminal to record the routing information and delay of each service path corresponding to the traceroute, RTSP delay and data packet transmission delay. The analysis module can aggregate the network topology path information from the CDN system to the terminal according to the resources collected by the bearer network data collection module, the access network data collection module and the routing gateway information of each hop in the traceroute routing information, and use the IP address as the dimension for aggregation. Analyze and compare the routing service situation of the network between the CDN system and the terminal, count the routing information of the optimal service path and the worst service path, and statistically analyze long-term data to analyze sudden changes and discrete situations and deterioration trends, thereby providing Rectification of network service quality provides reference suggestions for network tuning.

Here, the ways of statistical analysis include:

For the multi-path situation, 1. In the multi-network path, the IP address is used as the dimension, and the traceroute routing delay and RTSP delay are used for delay aggregation and attribution, and the routing point with the largest transmission delay is found to reflect the routing quality;

2. Aggregate the transmission delay (data packet transmission delay) between routes under multiple network paths, find out the network segment with the maximum delay in transmission between routes, and reflect the quality of the network segment between routes;

3. According to the above two summary data, combined with the network path information from the set-top box (terminal) to the CDN node and the CDN node, count the worst network path, routing point, and inter-route transmission network.

For a single fixed network path, establish a time-sharing dynamic baseline model, which is reflected in the quality of network segmentation at different service times, and memorize and learn its delay distribution law. Discrete problem points and times when an anomaly occurs.

Based on the system structure shown in FIG. 7 , the following describes the method for detecting and analyzing the transmission quality of the code stream (network service path quality) from the CDN system to the terminal.

Specifically, the embodiment of the present invention provides a method for monitoring network quality of a unicast service link from a CDN system to a terminal.

First, the process of collecting the service quality indicators of the unicast service link from the CDN system to the terminal is described.

As shown in Figure 10, the modules involved in this process mainly include: a system task management module, a terminal data collection module, and a CDN node data collection module. With reference to Figure 10, the process mainly includes:

First, the system task management module sends a video index collection task to the terminal, and the terminal data collection module of the terminal obtains the media IP address and port of the current service stream in real time, and reports it to the system task management module for record;

Specifically, the terminal obtains the IP address and port from the RTSP message, and reports it to the system task management module.

Next, the IP address obtained by the system task management module starts the first CDN node (service node) to send an RTSP request to the second CDN node (the dependent node of the first CDN node), and establishes a stream service connection;

After this step is completed, a network service link from the terminal to the first CDN node and the second CDN node is formed.

Then, the system task management module synchronously delivers the network quality analysis task to the terminal, the first CDN node and the second node;

Finally, the terminal data collection module of the terminal collects the network quality indicators of the terminal inbound on the service link, and the CDN node data collection module (CDN1 node data collection module) of the first CDN node collects the outbound and outbound directions of the first CDN node on the service link. For the inbound network quality indicator, the data acquisition module of the CDN node (CDN2 node data acquisition module) of the second CDN node collects the outbound network quality indicator of the second CDN node on the service link.

Here, the network quality indicators collected by the terminal and the CDN node are implemented based on tcpdump, and only the corresponding tcpdump parameters need to be obtained, but the direction of the collection of each device is different during implementation.

Specifically, as shown in FIG. 11 , the service links can be divided into: service links 111 between CDN nodes and service links 112 between CDN nodes and terminals.

Then, the collection of network quality indicators of service links between CDN nodes includes: the second CDN node uses the IP address and port (port) as the outbound tcpdump input parameters of this node, and obtains the outbound network quality indicators by capturing packets through tcpdump; The first CDN node uses the IP address and port (port) as the ingress tcpdump input parameters of the node, and obtains the ingress network quality indicator by tcpdump packet capture; Network quality index, obtains the service link network quality index between CDN nodes.

The collection of the network quality indicators of the service link between the CDN node and the terminal includes: the first CDN node uses the IP address and port (port) as the outgoing tcpdump input parameters of the node, and obtains the outgoing network quality through tcpdump packet capture. Indicator; the terminal takes the IP address and port (port) as the inbound tcpdump input parameters of the node, obtains the inbound network quality indicator by tcpdump packet capture, and combines the network quality indicators obtained by the first CDN node and the terminal to obtain the CDN Service link network quality indicator between nodes and terminals.

The network quality indicators may include parameters such as network throughput, packet loss, jitter, retransmission, and link establishment duration. The network quality indicator may be referred to as TCP-like information.

Then, the data analysis module analyzes the network quality indicators collected by each device in real time, and compares the network quality indicators horizontally in real time, so as to analyze the deterioration trend and position of the code stream network quality.

That is to say, the data analysis module compares and analyzes the historical trend of the network service quality of a single user service with the network quality indicators collected in real time, so as to analyze the deterioration situation and the deterioration position. Specifically, the collected network quality indicators (TCP link establishment time, network throughput, packet loss, jitter, retransmission, etc.) are correlated and compared with multi-dimensional data.

The comparison results are given below in combination with the scenarios.

Application Scenario 1: Terminal Start Playing Scenario

Under normal circumstances in this scenario, the client does its best to download, and the network quality indicators are as follows:

Transport layer: The TCP chain establishment time is short, and the TCP retransmission rate is very low.

Application Scenario 2: Terminal normal playback scenario

Under normal circumstances in this scenario, the client downloads at a constant speed, and the network quality indicators are as follows:

Transport layer: The TCP chain establishment time is short, the TCP retransmission rate is very low, the packet loss rate is low, and the code streams of the sender and receiver are basically the same.

Application Scenario 3: Scenario of Serious Network Packet Loss

In this scenario, the network freezes due to packet loss, and the network quality indicators are as follows:

Transport layer: high packet loss rate, large difference in sending and receiving code rate, TCP link establishment time will fluctuate, TCP retransmission rate is high and irregular fluctuations, and jitter is large.

Application Scenario 4: Insufficient Internet Speed or Speed Limit Scenario

In this scenario, due to insufficient network speed, the network quality indicators are as follows:

Transport layer: The TCP chain establishment time is relatively stable, the TCP retransmission rate is stable but not high, and the download code rate is low.

Application Scenario 5: Insufficient Server Performance of CDN Nodes

In this scenario, due to the performance problem of the CDN server, the session is not processed in a timely manner, resulting in a freeze. The network quality indicators are as follows:

Transport layer: The TCP chain establishment time is short, the TCP retransmission rate is not high, the packet loss rate is low, and the abnormal fluctuation of RTSP delay is sometimes high.

In actual application, according to the playback record of the terminal, when the playback record is abnormal, the system task management module intelligently links the terminal data acquisition module of the set-top box and the CDN node data acquisition module of the CDN node to initiate the active diagnosis process of the single-channel stream service, and The diagnosis result is given by the data analysis module, thereby providing a one-click detection and problem location mechanism for network service quality.

As can be seen from the above description, in the network quality monitoring mode of the unicast service link from the CDN system to the terminal, the terminal initiates RTSP signaling for a single video in real time to request the delivery of the code stream, and the serving CDN node initiates RTSP to the dependent CDN node Signaling request to form a real-time unicast service link. Through packet capture analysis on the service link, the inbound and outbound service quality indicators of the CDN node and the service quality indicators of the terminal are obtained, and the service quality indicators on the link are obtained. The service quality index items of the video network transmission are horizontally compared and analyzed to determine the deterioration position of the network service quality.

To sum up, the solutions provided by the embodiments of the present invention detect network segments, so that the video network quality from the CDN to the terminal can be detected more quickly and accurately.

In addition, the service link segment can also be detected, so that the end-to-end network service path quality can be detected correctly and quickly.

As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the invention may take the form of a hardware embodiment, a software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media having computer-usable program code embodied therein, including but not limited to disk storage, optical storage, and the like.

The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block in the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to the processor of a general purpose computer, special purpose computer, embedded processor or other programmable data processing device to produce a machine such that the instructions executed by the processor of the computer or other programmable data processing device produce Means for implementing the functions specified in a flow or flow of a flowchart and/or a block or blocks of a block diagram.

These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory result in an article of manufacture comprising instruction means, the instructions The apparatus implements the functions specified in the flow or flow of the flowcharts and/or the block or blocks of the block diagrams.

These computer program instructions can also be loaded on a computer or other programmable data processing device to cause a series of operational steps to be performed on the computer or other programmable device to produce a computer-implemented process such that The instructions provide steps for implementing the functions specified in the flow or blocks of the flowcharts and/or the block or blocks of the block diagrams.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention.

Claims (17)

1. A network quality detection method, characterized in that, applied to a server, the method comprising: Send a detection task, the detection task is used to instruct the collection device to collect the parameter set of the first network in sections, and the collection device includes the first content distribution network CDN node, the second CDN node and the terminal; the first CDN node and the terminal are connected. The intervening network is the first network; the second CDN node is the superior node of the first CDN node; the parameter set includes the third parameter, the fourth parameter, the fifth parameter and the sixth parameter, the third parameter and the fourth parameter The parameter represents the service quality indicator of the second CDN node facing the link of the first CDN node; the fifth parameter and the sixth parameter represent the service quality indicator of the first CDN node facing the terminal link; receiving the third parameter sent by the second CDN node; receiving the fourth parameter and the fifth parameter sent by the first CDN node; receiving the sixth parameter sent by the terminal; Using the parameter set, the network quality of the first network is analyzed to obtain a network quality detection result of the first network. 2. The method according to claim 1, wherein the collection device is a terminal, and the receiving the parameter set collected by the collection device comprises: Receive the first parameter and the second parameter sent by the terminal; the first parameter represents the end-to-end signaling response delay in the first network; the second parameter represents the end-to-end data packet in the first network Transmission delay; wherein, the signaling response delay is obtained according to the real-time streaming protocol RTSP delay and the traceroute delay; Correspondingly, the first parameter and the second parameter are analyzed to obtain a network quality detection result of the first network. 3. The method according to claim 2, wherein the method further comprises: According to the network topology structure of the first network and each hop routing gateway information in the traceroute routing information, determine the network topology path information of the first network corresponding to the terminal; When the network topology path information indicates that there are at least two end-to-end routing paths, take the IP address as the dimension, aggregate and analyze the first parameters collected by the terminal for each routing path, and determine at least two routing paths The routing point with the largest and smallest transmission delay in the Aggregate and analyze the second parameters collected by the terminal for each routing path, and determine the network segment with the largest and smallest transmission delay between routes in at least two routing paths; Based on the determined network segment and routing point, and in combination with the routing service information of the first network, the routing information of the optimal service path and the worst service path of the terminal is determined. 4. The method according to claim 2, wherein the method further comprises: According to the network topology structure of the first network and each hop routing gateway information in the traceroute routing information, determine the network topology path information of the first network corresponding to the terminal; When the network topology path information indicates that there is one end-to-end routing path, a time-sharing dynamic baseline model is established according to the first parameter and the second parameter collected within the preset time period of the terminal; the model reflects the network with different service times segment quality; And the problem point and time when the network quality of the first network is abnormal is determined on the model. 5. The method according to claim 4, wherein the third parameter, the fourth parameter, the fifth parameter and the sixth parameter are analyzed to obtain a network quality detection result of the first network, include: Using the third parameter, the fourth parameter, the fifth parameter and the sixth parameter, combined with the set threshold and the historical trend of the network service link, the network quality detection result of the first network is obtained. 6. method according to claim 4, is characterized in that, sending detection task, comprises: When the playback record of the terminal is abnormal, a detection task is sent. 7. A network quality detection method, characterized in that, applied to a collection device, the method comprising: Receive a detection task; the detection task is used to instruct the collection device to collect the parameter set of the first network in sections, and the collection device includes a first content distribution network CDN node, a second CDN node, and a terminal; the first CDN node and The network between the terminals is the first network; the second CDN node is the upper-level node of the first CDN node; the parameter set includes the third parameter, the fourth parameter, the fifth parameter and the sixth parameter, the third parameter and the The fourth parameter represents the service quality indicator of the second CDN node facing the link of the first CDN node; the fifth parameter and the sixth parameter represent the service quality indicator of the first CDN node facing the terminal link; In response to the detection task, collect the service quality index of the corresponding link according to its position in the first network and the direction of the end-to-end network service link; Issue the collected service quality indicators. 8. The method according to claim 7, wherein the collecting the quality of service index of the corresponding link comprises: Obtain the IP address and port of the service link; Use IP address and port to capture data packets; The captured data packets are analyzed to obtain the service quality index of the corresponding link. 9. The method according to claim 8, wherein when the collection device is a terminal, the use of an IP address and a port to capture data packets, comprising: Use the IP address and port to capture data packets in the incoming direction of the terminal; wherein, The first network is the end-to-end network where the terminal is located; the obtained service quality indicator is the sixth parameter. 10. The method according to claim 9, wherein, when the collection device is the first CDN node, the use of an IP address and a port to capture data packets, comprising: Use the IP address and port to capture data packets in the inbound and outbound directions of the first CDN node; wherein, The network between the first CDN node and the terminal is the first network, and the obtained service quality index is the fourth parameter and the fifth parameter; the fifth parameter and the sixth parameter represent the service quality index of the first CDN node facing the terminal link. 11. The method according to claim 10, wherein, when the collection device is a second CDN node, the use of the IP address and port to capture data packets, comprising: Using the IP address and port, the data packet is captured in the outbound direction of the second CDN node; wherein, The second CDN node is an upper-level node of the first CDN node, and the obtained service quality index is the third parameter; the third parameter and the fourth parameter represent the service quality index of the second CDN node facing the link of the first CDN node. 12. An apparatus for detecting network quality, wherein the apparatus comprises: a first sending unit, configured to send a detection task, where the detection task is used to instruct a collection device to collect a parameter set of the first network in sections, and the collection device includes a first content distribution network CDN node, a second CDN node, and a terminal; The network between the first CDN node and the terminal is the first network; the second CDN node is the upper-level node of the first CDN node; the parameter set includes the third parameter, the fourth parameter, the fifth parameter and the sixth parameter, so The third parameter and the fourth parameter represent the service quality index of the second CDN node facing the link of the first CDN node; the fifth parameter and the sixth parameter represent the service quality index of the first CDN node facing the terminal link; a first receiving unit, configured to receive the third parameter sent by the second CDN node, receive the fourth parameter and the fifth parameter sent by the first CDN node, and receive the sixth parameter sent by the terminal; An analysis unit, configured to use the parameter set to analyze the network quality of the first network to obtain a network quality detection result of the first network. 13. The apparatus according to claim 12, wherein the first receiving unit is specifically configured to: Receive the first parameter and the second parameter sent by the terminal; the first parameter represents the end-to-end signaling response delay in the first network; the second parameter represents the end-to-end data packet in the first network Transmission delay; wherein, the signaling response delay is obtained according to the real-time streaming protocol RTSP delay and the traceroute delay; The analyzing unit is configured to analyze the first parameter and the second parameter to obtain a network quality detection result of the first network. 14. The device according to claim 13, wherein the analysis unit is further configured to: According to the network topology structure of the first network and each hop routing gateway information in the traceroute routing information, determine the network topology path information of the first network corresponding to the terminal; When the network topology path information indicates that there are at least two end-to-end routing paths, according to the network topology structure of the first network, with the IP address as the dimension, the first parameter for each routing path collected by the terminal is performed. Aggregate and analyze to determine the routing point with the largest and smallest transmission delay in at least two routing paths; Aggregating and analyzing the second parameters collected by the terminal for each routing path, and determining the network segment with the largest and smallest transmission delay between routes in at least two routing paths; and Based on the determined network segment and routing point, and in combination with the routing service information of the first network, the routing information of the optimal service path and the worst service path of the terminal is determined. 15. The device according to claim 12, wherein the analysis unit is further configured to: According to the network topology structure of the first network and each hop routing gateway information in the traceroute routing information, determine the network topology path information of the first network corresponding to the terminal; When the network topology path information indicates that there is one end-to-end routing path, a time-sharing dynamic baseline model is established according to the first parameter and the second parameter collected within the preset time period of the terminal; the model reflects the network with different service times segmentation quality; And the problem point and time when the network quality of the first network is abnormal is determined on the model. 16. An apparatus for detecting network quality, wherein the apparatus comprises: a third receiving unit, configured to receive a detection task; the detection task is used to instruct a collection device to collect a parameter set of the first network in segments, and the collection device includes a first content distribution network CDN node, a second CDN node and a terminal; The network between the first CDN node and the terminal is the first network; the second CDN node is the upper-level node of the first CDN node; the parameter set includes the third parameter, the fourth parameter, the fifth parameter and the sixth parameter, so The third parameter and the fourth parameter represent the service quality index of the second CDN node facing the link of the first CDN node; the fifth parameter and the sixth parameter represent the service quality index of the first CDN node facing the terminal link; a second collection unit, configured to respond to the detection task and collect the service quality index of the corresponding link according to its position in the first network and the direction of the end-to-end network service link; The third sending unit is configured to send the collected service quality indicators. 17. The device according to claim 16, wherein the second collection unit is specifically configured to: Obtain the IP address and port of the service link; Use IP address and port to capture data packets; The captured data packets are analyzed to obtain the service quality index of the corresponding link.

Images