CN101242318A - Method and device for acquiring network connection quality of network nodes - Google Patents

Abstract

The invention provides a method and a device for acquiring network connection quality conditions of network nodes. The method mainly includes: sending a message to the target network node; receiving the message returned by the target network node; calculating the network packet loss rate and/or network delay according to the message returned by the target network node; The packet loss rate and/or network delay are graded for the quality of the network connection between the network node and the target network node. Utilizing the present invention, according to the packet loss rate and the network delay, the quality of the network connection between the terminal and the target network address can be classified and processed. Therefore, the user can obtain detailed network connection quality information between the terminal and the target network in real time.

Description

Method and device for acquiring network connection quality of network nodes

technical field

The invention relates to the field of network communication, in particular to a method and a device for acquiring network connection quality conditions of network nodes.

Background technique

With the rapid development of computer networks, the Internet (Internet) is more and more widely used. In addition to the traditional WWW, E-Mail, and FTP applications, users can also expand some new services on the Internet, such as distance education, distance learning, etc. Medical, videophone, video conferencing, video on demand, etc.

The continuous emergence of new services has put forward higher requirements on the service capabilities of the Internet. Service providers are no longer satisfied with simply delivering user packets to their destinations, but also hope to provide users with better services during the delivery process. Services, such as providing dedicated bandwidth for users, reducing message loss rate, managing and avoiding network congestion, regulating network traffic, and setting message priority.

Due to the unreliability of the Internet, users want to know the current detailed network quality and connection conditions. Especially for service providers who want to achieve the highest quality of service (QoS, Quality of Service) for the user's business, they want to know the possible impact of the current network quality status on the user's business, especially for some bandwidth, delay, delay jitter, etc. There are businesses with special requirements for transmission performance.

Contents of the invention

The purpose of the embodiments of the present invention is to provide a method and device for obtaining network connection quality of network nodes, so as to solve the problem for users to know the network quality and connection conditions of their terminals.

The purpose of the embodiments of the present invention is achieved through the following technical solutions:

A method for obtaining network connection quality conditions of network nodes, comprising:

Send a message to the target network node;

receiving the message returned by the target network node;

calculating the network packet loss rate and/or network delay according to the message returned by the target network node;

According to the network packet loss rate and/or network delay, the quality of the network connection between the network node and the target network node is graded.

A device for acquiring network connection quality conditions of network nodes, the device comprising:

A message processing module, configured to send a message to a target network node, and receive a message returned by the target network node;

A network state parameter calculation module, configured to calculate the network packet loss rate and/or network delay according to the message returned by the target network node received by the message processing module;

A network connection quality acquisition module, configured to classify the network connection quality between the network node and the target network node according to the network packet loss rate and/or network delay calculated by the network state parameter calculation module deal with.

It can be seen from the above technical solutions provided by the embodiments of the present invention that the embodiments of the present invention classify the quality of the network connection between the terminal and the target network address according to the packet loss rate and network delay. Therefore, the user can obtain detailed network connection quality information between the terminal and the target network in real time.

Description of drawings

FIG. 1 is a processing flowchart of a method for obtaining network connection quality of a network node according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of an apparatus for acquiring network connection quality of a network node according to an embodiment of the present invention.

Detailed ways

In the embodiment of the present invention, the network connection quality of the network nodes is divided into a set number of levels, and the corresponding relationship between each level and the corresponding time segment value of network delay is preset.

Send a message to the target network node, obtain the message returned by the target network node, and calculate the network packet loss rate and network delay. According to the calculated network packet loss rate and network delay, the network connection quality between the network node and the target network node is graded. Querying the corresponding relationship information according to the network delay value, obtaining the corresponding network connection quality level, and then adjusting the corresponding network connection quality level according to the network packet loss rate.

In the embodiment of the present invention, two main factors for evaluating the network connection quality of a network node are: network packet loss rate and network delay. In practical applications, the two factors can be combined to evaluate the network connection quality of the network node, or one of them can be used alone to evaluate the network connection quality of the network node. For example, in some application scenarios, network delay may be used alone to evaluate the network connection quality of network nodes.

The network packet loss rate can be calculated according to the number of Internet Control Message Protocol (ICMP, Internet Control Messages Protocol) messages sent by the terminal and the returned ICMP messages received. In practical applications, some other protocol messages may also be used to implement the embodiments of the present invention. The network node that receives the ICMP message or other protocol messages will return the ICMP message or other protocol messages to the network node that sent the message.

The specific calculation method of network packet loss rate and network delay is: network packet loss rate=(number of sent ICMP messages-number of received and returned ICMP messages)/number of sent ICMP messages. The network delay can be calculated according to the time when the terminal sends the ICMP message and the time of receiving the returned ICMP message. The specific calculation method is: network delay = time of receiving the returned ICMP message - sending the ICMP message time. In practical applications, the above-mentioned network packet loss rate and network delay may use an average value of values measured multiple times over a period of time.

At present, voice over IP (VOIP, Voice over IP) technology has been widely used. As its mainstream products, IP phones and voice gateways provide people with a new way of communication, but they are limited by the quality of network connections. As a result, the voice quality of IP phone calls cannot be guaranteed sometimes. Therefore, users hope to know the current network connection quality of their IP phone terminals in real time.

The method and device described in the embodiments of the present invention can be applied to some terminal equipment, such as: IP telephone terminal, videophone and other equipment. Of course, it can also be applied to other devices such as a voice gateway, and the method described in the embodiment of the present invention will be described below by taking an IP telephone terminal as an example.

A processing flow of the method for obtaining the network connection quality of the network node described in the embodiment of the present invention is shown in Figure 1, including:

11. Determine the IP address status of the Session Initiation Protocol (SIP, Session Initiation Protocol) server of the IP phone terminal. In this embodiment, the network node is an IP phone terminal.

If the address of the SIP server is an IP direct dial address, which is "0.0.0.0", and the IP address of the above-mentioned IP phone terminal is a private network address, then execute 12;

If the address of the SIP server is an IP direct dial address, which is "0.0.0.0", and the IP address of the above-mentioned IP phone terminal is a public network address, then execute 13;

If the address of the SIP server is the address of the proxy server, and the address of the proxy server is a private network address, then execute 14;

If the address of the SIP server is the address of the proxy server, and the address of the proxy server is the address of the public network, go to step 15.

12. The above-mentioned IP phone terminal sends an ICMP message to the local gateway, and the gateway that receives the ICMP message returns an ICMP message to the above-mentioned IP phone terminal, and the above-mentioned IP phone terminal returns an ICMP message according to the above-mentioned local gateway. Calculate network packet loss rate and network delay.

In this embodiment, the network delay can be accurate to the level of microseconds. By sending ICMP messages multiple times, the network delay can be measured several times, and then the average value can be taken. Similarly, the above-mentioned network packet loss rate may also take an average value of multiple measured values.

When the above-mentioned IP phone terminal does not receive the ICMP message returned by the local gateway, that is, the packet loss rate is 100%, and the network delay is infinite, this situation may be that the local gateway blocks the sent ICMP message. Therefore, the above-mentioned IP phone terminal sends a broadcast message, that is, sends an ICMP message to the broadcast address in the private network. If the above-mentioned IP phone terminal still does not receive the returned ICMP message at this time, it means that the IP phone terminal is not connected. In this private network, the level of the network connection quality at this time is level 0. If the IP phone terminal receives a certain number of returned ICMP messages, it stops sending broadcast ICMP messages. For example, when an IP phone terminal receives 3 to 5 returned ICMP messages, it stops sending broadcast ICMP messages to avoid congestion. Then, calculate the network delay according to the ICMP message returned above. Execute 16.

13. Select an IP address with a good connection status in the public network, such as the addresses of some websites. These websites usually do not block ICMP messages. Send an ICMP message to the address of the above public network, receive the ICMP message returned by the above public network, and calculate the network packet loss rate and network delay. Execute 16.

14. Send an ICMP message to the proxy server, and calculate the network packet loss rate and network delay according to the ICMP message returned by the proxy server.

When the above-mentioned IP telephone terminal does not receive the ICMP message returned by the proxy server, it may be that the proxy server blocks the sent ICMP message. Then, the above-mentioned IP phone terminal sends an ICMP message to the local gateway, and obtains the level of the network connection quality of the above-mentioned IP phone terminal according to the network packet loss rate and network delay of the ICMP message returned by the local gateway.

When the above-mentioned IP phone terminal does not receive the ICMP message returned by the local gateway, it sends the ICMP message to the broadcast address in the private network where the proxy server is located, and calculates the network delay according to the ICMP message returned by the broadcast address. Execute 16.

15. Send an ICMP message to the address of the proxy server, and calculate the network packet loss rate and network delay according to the ICMP message returned by the proxy server.

When the above-mentioned IP telephone terminal does not receive the ICMP message returned by the proxy server, it may be that the proxy server blocks the sent ICMP message. Therefore, select an IP address with a better connection status in the public network, send an ICMP message to the above-mentioned public network address, and calculate the network packet loss rate and network delay according to the ICMP message returned by the above-mentioned public network. Execute 16.

16. According to the calculated network packet loss rate and network delay, perform graded processing on the network connection quality of the above-mentioned IP telephone terminal.

In this embodiment, each level may represent a condition of network connection quality respectively. A specific process of how to classify can be as follows:

Divide the network connection quality situation into at least one level, for example, may be divided into 8 levels, that is, level 0, level 1, level 2, level 3, level 4, level 5, level 6 and level 7. The higher the level, the better the network connection quality. The smaller the network delay value, the higher the level. The network delay value corresponding to level 0 is infinite, indicating that the network connection of the terminal is disconnected.

A correspondence relationship between each level and a corresponding time segment value of network delay is established and stored.

According to the calculated network delay, the corresponding relationship is queried to determine which level the network connection quality of the IP phone terminal belongs to.

Then, according to the value of the network packet loss rate, adjust the level determined based on the time zone value of the network delay. The specific adjustment method can be: if the packet loss rate is 25%, reduce the existing level by 2 level; if the packet loss rate is 50%, reduce the existing level by 3 levels; if the packet loss rate is 75%, reduce the existing level by 4 levels; as long as the packet loss rate is not 100%, the existing network The lowest level of connection quality conditions is level 1.

Through the above steps 11-16, the network connection quality when the IP phone terminal is in the standby state can be known. When the IP telephone terminal is in use, it is necessary to know the quality of the network connection between the above-mentioned IP telephone terminal and a certain target IP telephone terminal, then the above-mentioned IP telephone terminal sends an ICMP message to the IP address of the target terminal, and according to the target terminal The network packet loss rate and network delay of the returned ICMP message are obtained to obtain the level information of the network connection quality between the above-mentioned IP phone terminal and the target terminal.

If the above-mentioned IP phone terminal does not receive the ICMP message returned by the target terminal, then the above-mentioned IP phone terminal makes a call to the target IP phone terminal. If the call is connected, there are three types: In this case, it can be determined that the target IP phone terminal has blocked the ICMP message. Still according to the above process, the quality of the network connection between the IP phone terminal and the external network is obtained.

If the call fails, excluding the two states of no answer and user busy, it can be determined that the network connected to the IP telephone terminal and the target IP telephone terminal is unavailable.

After obtaining the level information of the network connection quality of the IP telephone terminal, the level information may be published in a certain way to inform the user. For example, the level information of the network connection quality of the IP telephone terminal can be displayed on a liquid crystal display (LCD, Liquid Crystal Display), and the user can also be notified of the network connection between the IP telephone terminal and the external network through an indicator light, voice, etc. Connection quality condition.

The method described in the embodiment of the present invention can enable the user to acquire detailed network connection quality information in real time. It enables users to know whether the current network status will affect their communication quality.

The structural diagram of the device for obtaining the network connection quality of the network node described in the embodiment of the present invention is shown in Figure 2, specifically including the following modules:

A message processing module, configured to send a message to a target network node, and receive a message returned by the target network node;

A network state parameter calculation module, configured to calculate the network packet loss rate and network delay according to the message returned by the target network node received by the message processing module;

A network connection quality acquisition module, configured to classify the network connection quality between the network node and the target network node according to the network packet loss rate and/or network delay calculated by the network state parameter calculation module deal with.

Further, the device also includes:

The network connection quality publishing module is used to publish the level information of the network connection quality situation, and the publishing method can be: displaying the level information of the network connection quality situation on the LCD, or by means of an indicator light, voice, etc. Notify the level information of the network connection quality situation.

Further, the above-mentioned network connection quality acquisition module also includes:

The corresponding relationship storage sub-module is used to divide the network connection quality into a set number of levels, and store the corresponding relationship between each level and the corresponding time segment value of network delay.

The above device can be integrated on a network node device, for example, on an IP telephone terminal; it can also be an independent device.

The device described in the embodiment of the present invention can enable the user to acquire detailed network connection quality information in real time. It enables users to know whether the current network status will affect their communication quality.

The embodiment of the present invention is easy to implement, has good portability, can detect the current network quality state in real time, and provides a reference of network communication quality for users, especially users using IP phones for communication.

The above is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed in the present invention can easily think of changes or Replacement should be covered within the protection scope of the present invention.

Claims (11)

1. A method for obtaining network connection quality of network nodes, characterized in that, comprising: Send a message to the target network node; receiving the message returned by the target network node; calculating the network packet loss rate and/or network delay according to the message returned by the target network node; According to the network packet loss rate and/or network delay, the quality of the network connection between the network node and the target network node is graded. 2. The method according to claim 1, wherein the sending the message to the target network node, and calculating the network packet loss rate and/or network delay according to the message returned by the target network node, specifically includes: When the network node is an IP telephone terminal, and the address of the session initiation protocol SIP server of the IP telephone terminal is an IP direct dial address, and the IP address of the IP telephone terminal is a private network address, the IP telephone terminal sends The local gateway sends the Internet Control Message Protocol ICMP message, receives the ICMP message returned by the local gateway, and calculates the network packet loss rate and network delay according to the ICMP message returned by the local gateway; If the IP phone terminal does not receive the ICMP message returned by the local gateway, it sends a broadcast ICMP message to the private network where the IP phone terminal is located, and calculates the network delay according to the returned ICMP message. 3. The method according to claim 1, wherein the sending a message to the target network node, and calculating the network packet loss rate and/or network delay according to the message returned by the target network node, specifically includes: When the network node is an IP telephone terminal, and the address of the SIP server of the IP telephone terminal is an address of IP direct dialing, and the IP address of the IP telephone terminal is a public network address, the IP telephone terminal sends the IP address to the public network The IP address sends an ICMP message, receives the ICMP message returned by the IP address of the public network, and calculates the network packet loss rate and network delay according to the returned ICMP message. 4. The method according to claim 1, wherein the sending a message to the target network node, and calculating the network packet loss rate and/or network delay according to the message returned by the target network node, specifically includes: When the network node is an IP telephone terminal, the address of the SIP server of the IP telephone terminal is the address of a proxy server, and the IP address of the proxy server is a private network address, then the IP telephone terminal sends the proxy The server sends an ICMP message, receives the ICMP message returned by the proxy server, and calculates the network packet loss rate and network delay according to the ICMP message returned by the proxy server; If the IP telephone terminal does not receive the ICMP message returned by the proxy server, then the IP telephone terminal sends an ICMP message to the local gateway, receives the ICMP message returned by the local gateway, and according to the The ICMP message returned by the local gateway calculates the network packet loss rate and network delay; If the IP phone terminal does not receive the ICMP message returned by the local gateway, it sends a broadcast ICMP message to the private network where the proxy server is located, and calculates the network delay according to the returned ICMP message. 5. The method according to claim 1, wherein the sending the message to the target network node, and calculating the network packet loss rate and/or network delay according to the message returned by the target network node, specifically includes: When the network node is an IP telephone terminal, the address of the SIP server of the IP telephone terminal is the address of a proxy server, and the IP address of the proxy server is a public network address, then the IP telephone terminal sends the proxy The server sends an ICMP message, receives the ICMP message returned by the proxy server, and calculates the network packet loss rate and network delay according to the ICMP message returned by the proxy server; If the IP telephone terminal does not receive the ICMP message returned by the proxy server, then the IP telephone terminal sends the ICMP message to the IP address of the public network, receives the ICMP message returned by the IP address of the public network, and Calculate the network packet loss rate and network delay based on the returned ICMP messages. 6. The method according to claim 1, wherein the sending a message to the target network node, and calculating the network packet loss rate and/or network delay according to the message returned by the target network node, specifically includes: When the network node is an IP phone terminal, the IP phone terminal sends an ICMP message to the target IP phone terminal, receives the ICMP message returned by the target IP phone terminal, and according to the ICMP message returned by the target IP phone terminal, This document calculates the network packet loss rate and network delay. 7. The method according to any one of claims 1 to 6, characterized in that, according to the network packet loss rate and/or network delay, the network node between the network node and the target network node The network connection quality is graded, including: classify the network connection quality situation into at least one level; Establish and store the corresponding relationship between each level and the value of the corresponding network delay time segment; According to the network delay, query the corresponding relationship, and obtain the level of the network connection quality; The level of the network connection quality is adjusted according to the network packet loss rate. 8. The method according to claim 7, further comprising: Publish the level information of the network connection quality situation. 9. A device for acquiring network connection quality of network nodes, characterized in that the device includes: A message processing module, configured to send a message to a target network node, and receive a message returned by the target network node; A network state parameter calculation module, configured to calculate the network packet loss rate and/or network delay according to the message returned by the target network node received by the message processing module; A network connection quality acquisition module, configured to classify the network connection quality between the network node and the target network node according to the network packet loss rate and/or network delay calculated by the network state parameter calculation module deal with. 10. The device according to claim 9, further comprising: The network connection quality publishing module is used to publish the level information of the network connection quality situation. 11. The terminal according to claim 10, wherein the network connection quality acquiring module comprises: The corresponding relationship storage sub-module is used to divide the network connection quality into a set number of levels, and store the corresponding relationship between each level and the corresponding time segment value of network delay.

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