TWI679866B - Measurement system and measurement method for virtual private network service quality - Google Patents

Abstract

This case discloses a measurement system and method for measuring the service quality of a virtual private network, including a plurality of telecommunication network terminal devices respectively disposed on a plurality of virtual private networks, a server disposed on the telecommunication network, and a host computer. Circuits and branch circuits to connect the respective connected telecommunication network terminal equipment to the plurality of circuits of the server, respectively. The telecommunication network terminal equipment connected to the main circuit can open the service port, and the telecommunication network terminal equipment connected to the branch circuit can transmit measurement packets to the telecommunication network terminal equipment connected to the main circuit to receive the telecommunications network terminal from the main circuit. Reply packet returned by the device. The server can analyze the branch circuit network quality measurement results of the telecommunication network terminal equipment connected to the branch circuit, and obtain the virtual private network service interconnection circuit quality.

Description

Measurement system and method for virtual private network service quality

This case relates to a measurement technology for a virtual private network service quality. In particular, it relates to a measurement system and method for a multi-point-to-multipoint interconnection circuit quality of a virtual private network service.

In addition to the fixed network circuits for the general public to access the Internet, fixed-line telecom operators also provide virtual private network services as the interconnection of corporate private network circuits at multiple locations of the enterprise.

Generally speaking, an enterprise can apply for a virtual private network service circuit from a telecommunications company to each branch or service base. Then the telecommunications company installs telecommunications network terminal equipment at each enterprise's base to connect the telecommunications network as a corporate private network. And provide private network services for various corporate bases through telecommunication network terminal equipment. In addition, the circuit quality requirements of the virtual private network services used by enterprises are higher than the Internet access circuits used by the general public. Therefore, telecommunications operators will usually set higher telecommunications priorities to provide enterprise circuit use. After the construction of the private network service circuit is completed, the enterprise will build an enterprise router under the private network domain to set up the firewall L2 / L3 Tunnel required by the enterprise domain Or IPsec and other information security mechanisms, and through the enterprise router to monitor the interconnection status and quality of each private network circuit.

In addition, in order to ensure the circuit quality of providing virtual private network services, in addition to conducting circuit status monitoring on the network equipment of the telecommunications network, in order to establish circuit quality analysis close to the enterprise client, the telecommunications operator can open the telecommunications network by The servo function of the terminal equipment can be set up in the telecommunications network to establish a quality analysis server to periodically send test packets (ping) to each telecommunications network terminal equipment, thereby grasping the quality of the circuit connection.

However, such a mechanism can only confirm the connection quality between the telecommunications network and each virtual private network service circuit, but cannot obtain the interconnection quality between the circuits, and the servo function of the telecommunication network terminal equipment can be turned on 24/7. Increase the risk of cyber attacks.

Therefore, how to quickly and accurately obtain the interconnection quality between the virtual private network service circuits and reduce the risk of network attacks has become an urgent issue for the industry.

In order to achieve the above and other purposes, this case proposes a virtual private network service quality measurement system and measurement method, which can remotely start a telecommunications network terminal device to perform a quality measurement analysis of a virtual private network circuit interconnection. This measurement measures the network quality of the virtual private network circuits interconnected by the telecommunications operators at the head offices and branch offices of corporate customers.

The measurement system of the virtual private network service quality in this case includes: a plurality of circuits, including a set main circuit and at least one circuit; a plurality of telecommunication network terminal equipment, which are respectively set in a plurality of virtual private networks and are respectively The main circuit and the at least one circuit are connected, wherein a telecommunication network terminal device connected to the main circuit is used to open a service port to receive a measurement transmitted by at least one telecommunication network terminal device connected to the at least one circuit. A packet, and then return a reply packet to at least one telecommunication network terminal device connected to the at least one circuit; and a server disposed on the telecommunication network for the plurality of telecommunication network terminal devices to be connected through the plurality of circuits, respectively, The server is used to analyze at least one circuit network quality measurement result of at least one telecommunication network terminal device connected to the at least one circuit, and to obtain the virtual private network service interconnection circuit quality.

In addition, the server includes a terminal equipment network management server and a virtual private network service quality analysis server. The virtual private network service quality analysis server is used to set the main circuit and at least one circuit of the plurality of circuits. The terminal equipment network management server is used to instruct a telecommunication network terminal device connected to the main circuit to open the service port and to order at least one telecommunication network terminal device connected to the at least one circuit to a telecommunication network terminal connected to the main circuit. The device transmits the measurement packet. In addition, the terminal equipment network management server is configured to access the at least one circuit network quality measurement result to transmit the at least one circuit network quality measurement result to the virtual private network service quality analysis server, The virtual private network service quality analysis server performs integrated analysis on the at least one circuit network quality measurement result to obtain the virtual private network service interconnection circuit quality.

The method for measuring the service quality of a virtual private network in this case includes: setting one of a plurality of circuits as a main circuit and the other as at least one circuit; activating a telecommunication network terminal device connected to the main circuit A network quality measurement server function to enable a telecommunication network terminal device connected to the main circuit to open a service port; and activate a network quality measurement client function of at least one telecommunication network terminal device connected to the at least one circuit, So that at least one telecommunication network terminal device connected to the at least one circuit transmits a measurement packet to the telecommunication network terminal device connected to the main circuit, and then receives a reply packet returned by the telecommunication network terminal device connected to the main circuit ; Analyzing at least one circuit network quality measurement result of at least one telecommunication network terminal device connected to the at least one circuit, and obtaining the virtual private network service interconnection circuit quality.

In addition, activating the network quality measurement client function of the telecommunication network terminal device connected to the at least one circuit further includes: setting an opening time of the service port to stop receiving the measurement packet after the opening time ends. And the postback of the reply packet. In addition, the measurement method further includes: resetting another main circuit and at least another circuit, and then activating a network quality measurement server function of a telecommunication network terminal device connected to the other main circuit, and activating the connection to the at least another circuit. Network quality measurement client function of at least another telecommunication network terminal device of a circuit to obtain at least another circuit network quality of at least another telecommunication network terminal device connected to the at least another circuit The measurement results are further integrated and analyzed with at least one circuit network quality measurement result of at least one telecommunication network terminal device connected to the at least one circuit to obtain the virtual private network service interconnection circuit quality.

Furthermore, the quality of the virtual private network service interconnection circuit includes measurement time, network delay time, network mutation time, and packet loss rate. The service port is a User Datagram Protocol (UDP) or Internet Control Message Protocol (ICMP) service port.

Therefore, the virtual private network service quality measurement system and method in this case can provide telecommunications operators to establish a virtual private network service interconnection circuit network quality measurement mechanism to remotely activate two or more telecommunication networks. Terminal equipment that performs virtual private network service interconnect circuit quality measurements. In this case, the quality measurement is performed through the telecommunications network terminal equipment. The measurement path can cover the circuits and equipment built by all telecommunications operators in the main circuit and the branch circuits. The measurement results can provide the network quality of the virtual private network on behalf of the telecommunications operator. The telecommunication network terminal equipment is separated from the private network environment of the enterprise, so the measurement results are not affected by the corporate network environment. By setting the network quality of the main circuit telecommunication network terminal equipment to measure the server function opening time, thereby reducing the risk of network attacks that open the server function port for a long time. According to the analysis requirements of the periodic measurement and real-time measurement of the virtual private network quality analysis server, the network quality measurement of the main circuit and all branch circuit interconnection circuits is performed remotely through the network management server. In addition, this case can provide telecom operators to master the service quality of virtual private network, and also provide measurement and analysis of service level agreement (SLA) for virtual private network circuit interconnection.

10‧‧‧Telecom Network

11‧‧‧Main circuit

12‧‧‧ branches

13‧‧‧ branch circuit

14‧‧‧ branch circuits

21, 22, 23, 24‧‧‧ Telecommunication network terminal equipment

31, 32, 33, 34‧‧‧ Virtual Private Network

4‧‧‧Server

41‧‧‧Terminal equipment network management server

42‧‧‧Virtual Private Network Service Quality Analysis Server

51, 52, 53, 54 ‧ ‧ ‧ Enterprise bases

S301 ~ S305‧‧‧step

FIG. 1 is a block schematic diagram of an embodiment of a measurement system for virtual private network service quality in the present case; FIG. 2 is a specific application explanatory diagram of an embodiment of a measurement system for virtual private network service quality in the present case; and FIG. 3 is a schematic flowchart of an embodiment of a method for measuring service quality of a virtual private network in this case.

The following describes the implementation of this case through specific examples. Those skilled in the art can easily understand other advantages and effects of this case from the content disclosed herein. The structures, proportions, and sizes shown in the drawings in this specification are only used to match the content disclosed in the specification for the understanding and reading of those skilled in the art, and are not intended to limit the conditions that can be implemented in this case. Therefore, any modification, change or adjustment shall still fall within the scope covered by the technical content disclosed in this case, without affecting the efficacy and purpose that can be achieved in this case.

Please refer to FIG. 1. The measurement system of the service quality of the virtual private network in this case mainly includes a server 4, a telecommunication network terminal device 21 and 22, a main circuit 11 and a branch circuit 12.

The telecommunication network terminal devices 21 and 22 are respectively disposed on respective virtual private networks (not shown), and the server 4 is disposed on the telecommunication network (not shown). As shown in FIG. 1, a plurality of circuits are set by the server 4 as a main circuit 11 and a branch circuit 12, wherein the main circuit 11 is used to connect the telecommunications network terminal device 21 and the server 4, and the branch circuit 12 is used to connect Telecommunication network terminal equipment 22 and server 4. The number of branch circuits and telecommunication network terminal equipment connected to the branch circuits may not be limited to this figure, but may have one or more branch circuits and telecommunication network terminal equipment, that is, the enterprise has one or more in addition to the head office Corporate stronghold.

The server 4 may include a terminal equipment network management server (not shown) and a virtual private network service quality analysis server (not shown). The virtual private network service quality analysis server may be configured with a main circuit 11 and a branch circuit 12, The terminal equipment network management server may instruct the telecommunication network terminal equipment 21 connected to the main circuit 11 to open a User Datagram Protocol (UDP) or Internet Control Message Protocol (ICMP) service port, and The telecommunication network terminal device 22 connected to the branch circuit 12 is instructed to transmit a measurement packet to the telecommunication network terminal device 21 connected to the main circuit 11, and then the telecommunication network terminal device 21 connected to the main circuit 11 returns a reply packet to the connection branch circuit 12. The telecommunication network terminal device 22 enables the telecommunication network terminal device 22 to obtain a branch circuit network quality measurement result.

Furthermore, the terminal device network management server can access the branch circuit network quality measurement results to transmit the branch circuit network quality measurement results to the virtual private network service quality analysis server for virtual private network service quality analysis. The server integrates and analyzes the measurement results of the branch circuit network (one or more, if there are multiple) to obtain the virtual private network service interconnection circuit quality, that is, the interaction between the main circuit 11 and the branch circuit 12 Circuit quality, such as measurement time, network delay time, network mutation time, and packet loss rate. In addition, the telecommunication network terminal device 21 connected to the main circuit 11 can further set the opening time of the service port, so that after the end of the open time, the telecommunication network terminal device 51 connected to the main circuit 11 stops measuring the reception of the packet and responds to the packet. return.

In addition, the main circuit 11 and the branch circuit 12 can be set in reverse, that is, the telecommunication network terminal device 22 opens its service port and the telecommunication network terminal device 21 sends a measurement packet to the telecommunication network terminal device 22 to obtain the reverse direction. Circuit network quality measurement results, the terminal equipment network management server then accesses it and sends it to the virtual private network service quality analysis server for integrated analysis. To obtain the quality of the virtual private network service interconnection circuit.

Please refer to FIG. 2, which is a schematic diagram illustrating a specific embodiment of a measurement system for a virtual private network service quality in this case.

Enterprises can apply for two or more virtual private network service circuits with telecom operators as the virtual private network interconnections of corporate bases 51, 52, 53 and 54. Telecom operators install telecommunication network terminal equipment 21, 22, 23, and 24 Provides corporate virtual private networks 31, 32, 33, and 34 at telecommunication network terminal devices 21, 22, 23, and 24 at various corporate bases 51, 52, 53, and 54. Telecom network terminal equipment 21, 22, 23, and 24 and provide network management client functions such as: TR-069, SNMP or Netconf. In addition to providing virtual private network services and network management client functions, it also provides Network quality measurement server function and client function. The network quality measurement results include the measurement of network delay time, delay time variation, packet loss rate, etc. The network quality measurement mechanism can calculate the network quality by including the time and statistics of multiple ICMP or UDP packet and transmission processes.测 结果。 Test results. In addition, the related settings and result parameters of the network quality measurement server function and client function need to be integrated into the telecommunications network terminal equipment 21, 22, 23, and 24. The network management client function corresponds to the TR-069 included Data model, SNMP MIB or Yang Model. The terminal equipment network management server 41 can remotely activate the telecommunication network terminal equipment 21, 22, 23, and 24 to perform the server function and the client function of the network quality measurement through the network management mechanism. The terminal equipment network management server 41 can remotely manage the telecommunication network terminal equipment 21, 22, 23, and 24 through a network management mechanism. The terminal equipment network management server 41 connected to the telecommunications network 10 provides network management server functions such as: TR-069, Protocols such as SNMP or Netconf remotely manage telecommunication network terminal devices 21, 22, 23, and 24, and access telecommunication network terminal devices TR-069 Data model, SNMP MIB, and Yang Model and other parameters. Remotely manage telecommunication network terminals. device.

The virtual private network service quality analysis server 42 is connected to the terminal equipment network management server 41 and provides a private network service quality analysis function. The virtual private network service quality analysis server 42 records all circuit numbers of each customer who applies for a virtual private network interconnection service, and sets one of them as the main circuit 11 and the rest as branch circuits 12, 13 and 14. The virtual private network When performing the network quality measurement of the virtual private network service interconnection circuit, the service quality analysis server 42 sends the main circuit number and other branch circuit numbers to the terminal equipment network management server 41, and provides the terminal equipment network management server 41. Telecom network terminal devices 21, 22, 23, and 24 are remotely started to perform quality measurement analysis of virtual private network service interconnection circuits. The terminal device network management server 41 receives all the data from the virtual private network service quality analysis server 42. The test circuit number includes a main circuit number and more than one branch circuit number. The terminal equipment network management server 41 first remotely executes the telecommunication network terminal device 21 where the main circuit number is located to start the network quality measurement server function, and the telecommunication network terminal device 21 connected to the main circuit 11 network quality measurement server terminal The function continues to open the UDP or ICMP service port (port), and set the start time of the quality measurement server function, ready to receive telecommunications network terminal equipment quality measurement client functions from multiple branch circuits 12, 13 and 14 Measure the packet and return all the reply packets to the telecommunication network terminal equipment 22, 23 or 24 of the branch circuit 12, 13 or 14 originally transmitted, and close after the start time The closed service port stops receiving and transmitting measurement packets. After the network quality measurement server function of the telecommunication network terminal device 21 connected to the main circuit 11 is turned on, the terminal device network management server 41 continues to start all the telecommunication network terminal devices 22, 23, and 24 where all the branch circuit numbers are located. Client function for network quality measurement. The terminal equipment network management server 41 remotely activates the telecommunication network connecting the branch circuits 12, 13 and 14 to the network quality measurement client function of the terminal equipment 22, 23 and 24, and connects the telecommunication network of the branch circuits 12, 13 and 14. The network quality measurement client function of the terminal devices 22, 23, and 24 successively transmits several measurement packets to the IP and Port where the telecommunication network terminal device 21 connected to the main circuit 11 is located, and waits to receive data from the connection main circuit 11 All reply packets returned by the telecommunication network terminal device 21, thereby calculating the packet loss rate by using the number of transmitted and received packets, and calculating the network delay time and the delay time variation by using the difference between the transmitted and received packet time.

After the network measurement of all the branch circuits is completed, the terminal equipment network management server 41 remotely accesses the network quality measurement results of all the branch circuits, and then provides the network quality measurement results of all the branch circuits to the virtual private network service quality analysis. The server 42 performs network quality analysis of the virtual private network service interconnection circuit. Telecom operators can measure the network quality such as the network delay time, delay variation time, and packet loss rate between the virtual private network service interconnect circuits through the enterprise virtual private network quality analysis server. Telecom operators use the virtual private network service quality analysis server to present the network quality of all virtual private network interconnection circuits in the enterprise.

As shown in Table 1 below, including the network delay time, delay variation time, and packet of the main circuit of the enterprise virtual private network interconnection service to all branch circuits. Loss rate, etc.

As shown in Table 2 below, the measurement results of all periods from the main circuit to the individual branch circuits are listed to provide analysis of network quality degradation at different periods. The virtual private network quality analysis server can also select different circuits as the main circuit and re-perform the virtual private network interconnection circuit quality measurement, which can provide multi-point to multi-point interconnection between the virtual private network interconnection circuits of the telecommunications operator. Measurement analysis needs.

As shown in Table 3 below, it is provided to set the interconnection quality between different main circuits and other branch circuits.

Please refer to FIG. 3, which illustrates the step flow of an embodiment of the method for measuring the quality of a virtual private network service in this case. The enterprise virtual private network service quality can be accessed through periodic execution or real-time execution of a demand method.

As shown in step S301, a main circuit and at least one circuit are set. Specifically, the virtual private network service quality analysis server sends the main circuit and all branch circuit numbers to the terminal equipment network management server, thereby starting the network quality measurement of the virtual private network service interconnection circuit. In other words, the virtual private network service quality analysis server starts to perform the network quality measurement function of the virtual private network service interconnection circuit, and sends the main circuit number and other branch circuit numbers to the terminal equipment network management server, and starts the terminal equipment network management The server remotely activates the telecommunication network terminal equipment to perform network quality measurement of the virtual private network service interconnection circuit.

As shown in step S302, the terminal equipment network management server remotely activates the network quality measurement server function of the telecommunication network terminal equipment of the connected main circuit, and sets the network quality measurement server function start time. Specifically, after the terminal equipment network management server receives the virtual private network service quality analysis server and executes the quality measurement instruction of the virtual private network service interconnection circuit, it first remotely starts the main circuit telecommunication network terminal equipment network. The quality measurement server function, and the network quality measurement server function continues to open the UDP or ICMP service port (port), and set the start time of the quality measurement server function, that is, the service port opening time, ready to receive from The measurement packet of the client function of the telecommunication network terminal device with multiple branch circuits is measured, and all the reply packets are returned to the originally transmitted branch circuit telecommunication network terminal device. After the startup time expires, the service port is closed to stop receiving and transmitting measurement packets.

As shown in step S303, the terminal equipment network management server remotely activates a network quality measurement client function of at least one telecommunication network terminal equipment connected to at least one circuit. Specifically, the terminal device network management server completes the remote start After the network quality measurement server function of the main circuit telecommunication network terminal equipment is activated, the network quality measurement client function of all branch circuit telecommunication network terminal equipment is activated remotely. The network quality measurement client function successively sends several measurement packets to the IP and Port where the main circuit telecommunications network terminal equipment is located, and waits to receive all packets returned from the main circuit telecommunications network terminal equipment. Use the number of transmitted and received packets to calculate the packet loss rate, and use the time difference between the transmitted and received packets to calculate the network delay time and delay time variation.

As shown in step S304, the measurement results of at least one circuit network quality of at least one telecommunication network terminal device connected to at least one circuit are analyzed. This step includes remote access of the terminal equipment network management server to all branch circuit telecommunication network terminal equipment network quality measurement client results, and the terminal equipment network management server to transmit all branch circuit network quality measurement client results to Virtual private network service quality analysis server performs network quality measurement and analysis of interconnected circuits. Specifically, after all the branch circuits complete the network quality measurement of the virtual private network service, the terminal equipment network management server remotely accesses the network quality measurement results of all branch circuit telecommunication network terminal equipment, and then The circuit network quality measurement results are provided to the virtual private network service quality analysis server to perform network quality measurement analysis of the virtual private network service interconnection circuit.

As shown in step S305, the virtual private network service interconnection circuit quality is obtained. In other words, by performing the above steps, the telecommunication operator can measure the network quality such as the network delay time, delay variation time, and packet loss rate between the virtual private network service interconnection circuits through the enterprise virtual private network quality analysis server, such as Table 1 contains the network delay time, delay variation time, and The packet loss rate, etc., is also shown in Table 2 for the measurement results of the main circuit to the individual branch circuits at all times, and it can also be used to analyze the network quality at different time periods as shown in Table 3.

To sum up, the virtual private network service quality measurement system and method in this case can use the network management server to remotely activate the circuit terminal equipment to perform the quality measurement analysis of the virtual private network circuit interconnection, thereby measuring Telecommunications operators establish the network quality of virtual private network circuits interconnected at various service bases such as the head office and branch offices of enterprise customers. The measurement can be performed by using telecommunication network terminal equipment that provides virtual private network services of various enterprise bases, and the measurement path can cover telecommunications operators to build a virtual private network to interconnect all circuits and equipment, and the measurement results can represent telecommunications The operator provides the network quality of the virtual private network without the complex enterprise client network environment problems. In addition, considering the information security risks, the telecommunication network terminal equipment will set the startup time when the quality measurement server function is turned on. After the startup time ends, the quality measurement server function will be closed, thereby reducing the long-term opening of the server function port Cyber attacks and other risks.

The above-mentioned embodiments only exemplify the effectiveness of this case, and are not intended to limit this case. Anyone familiar with this technique can modify and change the above implementations without departing from the spirit and scope of this case. Therefore, the scope of protection of the rights in this case should be as listed in the scope of patent application mentioned later.

Claims (12)

A virtual private network service quality measurement system includes: a plurality of circuits, including a set main circuit and at least one circuit; a plurality of telecommunication network terminal equipment, which are respectively set in a plurality of virtual private networks and are respectively The main circuit and the at least one circuit are connected, wherein a telecommunication network terminal device connected to the main circuit is used to open a service port to receive a measurement transmitted by at least one telecommunication network terminal device connected to the at least one circuit. A packet, and then return a reply packet to at least one telecommunication network terminal device connected to the at least one circuit; and a server disposed on the telecommunication network for the plurality of telecommunication network terminal devices to be connected through the plurality of circuits, respectively, The server activates a network quality measurement server function of a telecommunication network terminal device connected to the main circuit, so that the telecommunication network terminal device connected to the main circuit opens the service port, and starts a connection to the at least one circuit. The network quality measurement client function of at least one telecommunication network terminal device, so that at least one telecommunication network connected to the at least one circuit The terminal device transmits the measurement packet to a telecommunication network terminal device connected to the main circuit, and the server is configured to analyze at least one circuit network quality measurement result of at least one telecommunication network terminal device connected to the at least one circuit. Get the quality of the virtual private network service interconnect circuit. The measurement system according to item 1 of the scope of patent application, wherein the server includes a terminal device network management server and a virtual private network service quality analysis server, and the virtual private network service quality analysis server is used for The plurality of circuits are configured for the main circuit and at least one circuit, and the terminal equipment network management server is used to command a telecommunications network terminal equipment connected to the main circuit to open the service port and command at least one telecommunication connected to the at least one circuit The network terminal device transmits the measurement packet to a telecommunication network terminal device connected to the main circuit. The measurement system according to item 2 of the scope of patent application, wherein the terminal equipment network management server is configured to access the at least one circuit network quality measurement result to measure the at least one circuit network quality measurement. The results are transmitted to the virtual private network service quality analysis server for the virtual private network service quality analysis server to integrate and analyze the at least one circuit network quality measurement result, and obtain the virtual private network service interaction Even circuit quality. The measurement system according to item 1 of the scope of patent application, wherein the telecommunication network terminal equipment connected to the main circuit is further used to set the opening time of the service port so that after the opening time ends, the connection to the main circuit is completed. The telecommunication network terminal device stops receiving the measurement packet and returning the reply packet. The measurement system according to item 1 of the scope of patent application, wherein the quality of the virtual private network service interconnection circuit includes measurement time, network delay time, network mutation time, and packet loss rate. The measurement system according to item 1 of the scope of the patent application, wherein the service port is a User Datagram Protocol (UDP) or Internet Control Message Protocol (ICMP) service port. A method for measuring the service quality of a virtual private network includes: setting one of a plurality of circuits as a main circuit and the remaining as at least one circuit; and activating a network of a telecommunication network terminal device connected to the main circuit. Circuit quality measurement server function to enable the telecommunication network terminal equipment connected to the main circuit to open a service port; to activate the network quality measurement client function of at least one telecommunication network terminal equipment connected to the at least one circuit; Causing at least one telecommunication network terminal device connected to the at least one circuit to transmit a measurement packet to a telecommunication network terminal device connected to the main circuit, and then receiving a reply packet returned by the telecommunication network terminal device connected to the main circuit; Analyze the network quality measurement results of at least one circuit of at least one telecommunication network terminal device connected to the at least one circuit, and obtain the virtual private network service interconnection circuit quality. The measurement method according to item 7 of the scope of patent application, wherein the at least one circuit network quality measurement result of at least one telecommunication network terminal device connected to the at least one circuit is analyzed to obtain a virtual private network service interaction The connected circuit quality further includes: accessing the at least one circuit network quality measurement result to transmit the at least one circuit network quality measurement result to a server for integration analysis, and obtaining the virtual private network service interconnection Circuit quality. The measurement method according to item 7 of the scope of patent application, wherein activating the network quality measurement client function of a telecommunication network terminal device connected to the at least one circuit further includes: setting an opening time of the service port to After the opening time ends, the receiving of the measurement packet and the return of the reply packet are stopped. The measurement method described in item 7 of the scope of patent application, further includes: resetting another main circuit and at least another circuit, and then starting the network quality measurement of the telecommunication network terminal equipment connected to the other main circuit A server function and a network quality measurement client function of at least another telecommunication network terminal device connected to the at least another circuit, so as to obtain at least another telecommunication network terminal device connected to the at least another circuit At least another circuit network quality measurement result is further integrated with at least one circuit network quality measurement result of at least one telecommunication network terminal device connected to the at least one circuit to obtain the virtual private network Service interconnect circuit quality. The measurement method according to item 7 of the scope of patent application, wherein the quality of the virtual private network service interconnection circuit includes measurement time, network delay time, network mutation time, and packet loss rate. The measurement method according to item 7 of the scope of the patent application, wherein the service port is a User Datagram Protocol (UDP) or Internet Control Message Protocol (ICMP) service port.