TW201429189A - Method and device for testing network equipment - Google Patents

Abstract

A method for testing a network equipment includes the following steps: several virtual local network area (VLAN) channels, which correspond to network test ports, are provided on a path between a first loop port and a second loop port, which are connected to each other and set to loop-enabled. A test packet is received and transmitted to the first loop port for speeding up its transmission rate. A target transmission port and a target receiving port are selected from the network test ports. The test packet is assigned to the VLAN channel corresponding to the target transmission port. The speeded-up test packets are transmitted to a network equipment for test connected to the target transmission port through the corresponding VLAN channel. A reply packet corresponding to the test packet is received from the network equipment for test connected to the target receiving port. A test result is generated by analyzing the transmission and receiving steps.

Description

Test method and device for detecting network equipment

The present invention relates to a test method and system for detecting a network device, and more particularly to a test method and system for detecting a network device by using a virtual area network channel.

With the rapid development of communication networks, the Internet has become a part of people's lives, and it has become an indispensable medium for people to exchange, acquire and send information. Therefore, network communication devices such as modems, hubs, switches, and routers are everywhere.

All kinds of network communication equipment must undergo repeated testing from design, development to production. Among them, in the process of testing network communication equipment, a professional packet test instrument is indispensable. However, such test instruments are not expensive, increasing the cost of development and production of network communication equipment.

Accordingly, one aspect of the present invention is to provide a test method for detecting a network device for assisting packet testing by a virtual area network channel. The test method consists of the following steps:

(a) providing a first loop, a second loop, and a number of network test ports. The first loop 埠 and the second loop 埠 are connected to each other and are set to be self-loop.

(b) providing a plurality of virtual area network channels on the path of the first loop and the second loop, wherein each virtual area network channel corresponds to one of the network test ports.

(c) receiving and transmitting the packet to be tested to the first loop.

(d) From the network test, selecting at least one target transmission test port and at least one target receiving test port, and allocating the test packet to the virtual area network channel corresponding to the target transmission test port.

(e) Accelerating the transmission rate of the packet to be tested by interconnecting and self-looping the first loop 埠 and the second loop 埠.

(f) transmitting the self-test-accelerated packet to the network device under test connected to the target transmission test terminal through the virtual local area network channel corresponding to the target transmission test.

(g) receiving, from the target receiving test device, the network device to be tested, and receiving at least one related packet corresponding to the packet to be tested.

(h) Obtain test results based on the results of steps (f) and (g).

Another aspect of the present invention is to provide a test apparatus for detecting a network device. The test device includes a first loop, a second loop, a plurality of network test ports, and a processing component. The second loop is electrically connected to the first loop, and the processing components are electrically connected to the first loop 埠, the second loop 埠, and the network test port, respectively. The processing component comprises a channel providing module, a packet processing module, a setting module, a self-loop module, a transmitting module, a receiving module and a result obtaining module. The channel provides modules on the path of the first loop and the second loop, providing a plurality of virtual area network channels. Wherein each virtual area network channel corresponds to one of the network tests port. The packet processing module receives at least one packet to be tested and transmits the packet to be tested to the first loop. The setting module is selected from the network test, selecting at least one target transmission test port and at least one target receiving test port, and allocating the test packet to the virtual area network channel corresponding to the target transmission test port. The self-loop module sets the first loop 埠 and the second loop 为 to be self-loop, and transmits the packet to be tested to the first loop 自 and the second loop of the self-loop to accelerate the packet to be tested. Transfer rate. The transmitting module transmits the packet to be tested after the self-loop acceleration to the virtual area network channel corresponding to the target transmission test, and transmits it to one of the network devices to be tested connected to the target transmission test terminal. The receiving module receives the network device to be tested connected to the test packet from the target, and receives at least one related packet corresponding to the packet to be tested. The result obtaining module obtains the test result of the network device to be tested according to one of the information to be tested and the information received by one of the related packets.

The spirit and scope of the present invention will be described in the following detailed description of the preferred embodiments of the present invention, which can be modified and modified by the teachings of the present invention. The spirit and scope of the present invention.

1 is a flow chart of a test method for detecting a network device in accordance with an embodiment of the present invention. In the test method, the packet test is assisted by the virtual local area network channel. The test method can be implemented via a computer program. The computer program can be stored in a computer readable recording medium, and the computer can execute the test method after reading the recording medium. The computer readable recording medium can be read only memory, flash memory, floppy disk, hard disk, optical disk, A pen drive, a tape, a network accessible database, or a computer readable by the art can easily think of a computer-readable recording medium having the same function.

Figure 2 is a schematic illustration of a system to which the test method of the present invention is applied. Please refer to both Figure 1 and Figure 2. The testing method 100 includes the following steps: In step 110, a first loop 201, a second loop 202, and a plurality of network test ports 203, 204 are provided. The first loop 201 and the second loop 202 are connected to each other and set to be self-loop. The first loop 201, the second loop 202, and the network test ports 203, 204 may be provided by a switch chip 200.

In step 120, a plurality of virtual area network channels 301, 302, 303 are provided on the path of the first loop 201 and the second loop 202. The virtual area network channels 301, 302, and 303 correspond to one of the network test ports. In this embodiment, the virtual local area network channel 301 corresponds to the network test port 203, the virtual area network channel 302 corresponds to the network test port 204, and the virtual area network channel 303 corresponds to the network test port 204. In other words, one virtual area network channel can be associated with one network test, and multiple virtual area network channels can be corresponding to the same network test.

In step 130, the packet to be tested is received and transmitted to the first loop 201. In some embodiments of the present invention, a packet to be tested may be generated by the processing element 205 of the switch chip 200 itself to receive at least one packet to be tested in step 130. In still other embodiments of the invention, the packet to be tested may be received from other devices (step 130). In addition, before step 130, the content of the packet to be tested may be preset, such as the purpose of the packet to be tested or the source of the media access control address (MAC address), the Internet Protocol address (Internet Protocol) Address, IP Address), the value of the virtual local area network or other types of packet content.

In step 140, from the network test ports 203, 204, at least one target transfer test port and at least one target receive test port are selected, and the packet to be tested is allocated to the virtual area network channel corresponding to the target transfer test port. For example, if the network test port 203 is selected as the target transfer test port in step 140, the test packet to be tested is allocated to the virtual area network channel 301 corresponding to the target transfer test port 203. In addition, the network test 埠 203 that has been set as the target transmission test 可 can be further set as the target reception test 埠.

In step 150, the transmission rate of the packet to be tested is accelerated by the first loop 埠 201 and the second loop 埠 202 that are connected to each other and are self-looped.

In step 160, the virtual local area network channel 301 corresponding to the network test port 203 is selected (transmitted as the target transmission test device), and the one to be transmitted from the ring-accelerated packet to the target transmission test port 203 is transmitted. Network device 400 is measured. The network device 400 to be tested may be a switch, a router, other types of network communication devices, or other electronic devices that can transmit or receive network packets.

In step 170, the network device 400 to be tested connected to the network test port 203 (selected as the target receiving test device) receives at least one related packet related to the packet to be tested. In some embodiments of the present invention, the related packet may be a packet generated after the packet to be tested is executed. In other embodiments of the present invention, the related packet may be a packet to be tested after being transferred. However, in other embodiments, the other network test port 204 may also be set as the target receiving test in step 140, and is not limited to the disclosure. Moreover, in some embodiments of step 170, the access control list may be further (access control list, ACL), filtering the received related packets.

In step 180, the test result of the network device to be tested is obtained according to the execution results of step 160 and step 170. For example, in step 180, the number of packets to be tested transmitted in step 160, the number of bytes, the actual transmission rate, the number of error packets, other related information when transmitting the packet, or a combination thereof may be analyzed, and The number of relevant packets received in step 170, the number of bytes, the actual transmission rate, the number of error packets, other information related to receiving the packet, or a combination thereof. In this way, after the analysis of step 180, it can be determined whether the network device to be tested is working properly. In addition, the network communication device (for example, an Ethernet switch) supporting the virtual local area network channel function can realize the present invention, and can perform the packet test without an expensive packet test instrument.

In some embodiments of the present invention, the testing method 100 may further include: adding identification information of the virtual local area network channel corresponding to the target transmission test to the packet to be tested, thereby causing step 160 according to the corresponding virtual local area network channel. The identification information is found, and the virtual local area network channel corresponding to the target transmission test is found to perform the transmission of step 160. In addition, a plurality of target transmission test files may be selected in step 140. For example, if the same packet to be tested is transmitted to a plurality of different target transmission tests for testing, multiple packets to be tested may be copied, and the identification information of each target transmission test packet is added to each packet to be tested. Next, in step 160, the packet to be tested is transmitted to the plurality of target transmission test files according to the identification information of different virtual area network channels in each of the tested packets. In other embodiments of the present invention, the identification information of the virtual local area network channel corresponding to the plurality of identical or different target transmission test files may be added to multiple identical or different packets to be tested for performing. Testing is not limited to this disclosure. In this way, the same or different packet test can be performed on the network devices to be tested connected to multiple different network test terminals at the same time.

In addition, in an embodiment of step 160, before the packet to be tested is transmitted through the target transmission test port 203, the identification information of the corresponding virtual area network channel may be removed, and then the test packet to be tested is transmitted from the target test. 203 is transmitted to the network device 400 to be tested. In this way, the identification information of the virtual local area network channel can be prevented from affecting the test result.

In some embodiments of the present invention, the testing method 100 may further include: providing a plurality of Quality of Service (QoS) queues. Among them, each service quality queue corresponds to one of the network test ports 203 and 204. Thus, a target test rate set by the user can be received to control the transfer rate of the packet to be tested to the target test rate. The bandwidth can be set to the target test rate by setting the bandwidth of each service quality queue. Next, when performing the transmission of step 160, the transmission rate of the packet to be tested can be controlled to the target test rate by the service quality queue corresponding to the target transmission test. For example, the bandwidth of the service quality queue corresponding to the target transmission test is 800 Mega bits, and the transmission rate of the packet to be tested transmitted through the target transmission test is controlled by 100 Mbytes. It should be noted that the length of the packet to be tested also corresponds to the bandwidth to be set and the target transmission rate, and different packet lengths are generated. For example, a service quality queue with a bandwidth of 800 Mega bits is set, and when the target transmission rate is defined as 100 Mbytes. The length of the packet to be tested is 100 bytes. Therefore, the transfer rate of the packet to be tested transmitted through the target transfer test can be controlled to the target test rate.

Please refer to FIG. 3, which is a functional block diagram of a test apparatus according to an embodiment of the invention. The test device in the embodiment of the present invention may be an Ethernet switch. The testing device 500 includes a first loop 埠 510, a second loop 520, a plurality of network test ports 530, 540, and a processing component 550. The second loop 埠 520 is electrically connected to the first loop 埠 510 , and the processing component 550 is electrically connected to the first loop 埠 510 , the second loop 埠 520 , and the network test ports 530 , 540 , respectively. Processing component 550 can be a central processing unit (CPU), a microcontroller, other types of processing elements, or a combination thereof.

The processing component 550 includes a channel providing module 551, a packet processing module 552, a setting module 553, a self-loop module 554, a transmitting module 555, a receiving module 556, and a result obtaining module 557. The channel providing module 551 provides a plurality of virtual area network channels on the paths of the first loop 埠 510 and the second loop 520. Each virtual area network channel corresponds to one of the network tests 埠 530, 540.

The packet processing module 552 receives at least one packet to be tested and transmits the packet to be tested to the first loop 510. In some embodiments of the present invention, a packet to be tested may be generated by the processing component 550 itself for receipt by the packet processing module 552. In other embodiments of the present invention, the packet processing module 552 can receive the packet to be tested from other devices. In addition, the content of the packet to be tested may be preset through the processing component 550, such as the media access control address (MAC address) of the packet to be tested or the Internet Protocol address (Internet Protocol address). , IP address), the value of the virtual local area network, or other types of packet content.

The setting module 553 selects at least one target transmission test 埠 and at least one target reception test 自 from the network test 埠 530, 540, and the test to be tested The packet is assigned to the virtual local area network channel corresponding to the target delivery test. The setting module 553 can set the same or different network test 埠 as the target transmission test 埠 and the target reception test 埠.

The self-loop module 554 sets the first loop 埠 510 and the second loop 埠 520 as a self-loop, and transmits the packet to be tested to the first loop 自 and the second loop of the self-loop to accelerate the waiting. Measure the transfer rate of the packet. For example, the self-loop module 554 can open the self-loop function of the first loop 埠 510 and the second loop 520, respectively, and the first loop 埠 510 and the second loop 埠 520 form a closed loop. Then, after the loop module 554 transmits the packet to be tested to the first loop 埠 510, the packet to be tested can be transmitted in a closed loop formed by the first loop 埠 510 and the second loop 520. In this way, the transmission rate of the packet to be tested can be accelerated to the highest transmission rate of the first loop 埠 510 and the second loop 520.

The transmitting module 555 transmits the packet to be tested after the self-loop acceleration to the virtual area network channel corresponding to the target transmission test, and transmits it to one of the network devices to be tested connected to the target transmission test terminal. For example, in the embodiment, the setting module 553 selects the network test port 530 as the target transfer test port, and the transfer module 555 passes the self-loop accelerated test packet through the corresponding virtual area network channel. The test is transmitted to the target transmission test unit 530 and then transmitted to the network device 600 to be tested to which the target transmission test unit 530 is connected. The network device 600 to be tested may be a switch, a router, other types of network communication devices, or other electronic devices that can transmit or receive network packets.

The receiving module 556 receives the network device to be tested connected to the test packet from the target, and receives at least one related packet corresponding to the packet to be tested. In this embodiment, the setting module 553 selects the network test port 530 as the target receiving test port. The receiving module 556 receives the at least one related packet corresponding to the packet to be tested from the network device 600 to be tested connected to the target receiving test module 530. In some embodiments of the present invention, the related packet may be a packet generated by the network device 600 to be tested after receiving the packet to be tested. In other embodiments of the present invention, the related packet may be a packet to be tested after being transmitted through the network device 600 to be tested. Moreover, in some embodiments of the present invention, processing component 550 can further filter the received associated packets by an access control list (ACL).

The result obtaining module 557 analyzes the test of the network device 600 to be tested according to one of the packets to be tested and one of the related packets. For example, the result obtaining module 557 can analyze the number of the packets to be tested, the number of bytes, the actual transmission rate, the number of error packets, and other transmission packets when the transmission module 555 transmits the test packet. The information of the information or a combination thereof. And receiving, by the receiving module 556, when receiving the relevant packet, the number of received related packets, the number of bytes, the actual transmission rate, the number of error packets, other information related to receiving the packet, or the combination of the received information. In this way, the result obtaining module 557 can determine whether the network device 600 to be tested is working properly according to the analysis result. In addition, the test device 500 of the present invention can be implemented by simply supporting the network communication device of the virtual local area network channel function, and the packet test can be performed without an expensive packet test instrument.

The processing component 550 can further include an identification information processing module 559. The identification information processing module 559 adds the identification information of the virtual area network channel corresponding to the target transmission test module 530 to the packet to be tested. Therefore, the transmission module 555 can be found according to the identification information of the corresponding virtual area network channel. The target transmits a virtual local area network channel corresponding to test 530 for transmission. In addition, the setting module 553 can select a plurality of target transmission test files from the network test ports 530 and 540. For example, if the same packet to be tested is to be transmitted to a plurality of different target transmission tests for testing, the processing component 550 may copy a plurality of packets to be tested, and the identification information processing module 559 identifies each target transmission test. Information is added to each packet to be tested. Next, the transmitting module 555 can transmit the packet to be tested to the plurality of target transmission test ports according to the identification information of the different virtual area network channels in each of the tested packets. In other embodiments of the present invention, the identification information processing module 559 may also add identification information of multiple virtual area network channels corresponding to the same or different target transmission test to multiple identical or different samples to be tested. The packet is transmitted for transmission by the transmission module 555 and is not limited to the disclosure. In this way, the same or different packet test can be performed on the network devices to be tested connected to multiple different network test terminals at the same time.

In addition, the processing module 550 removes the module 560 to remove the identification information of the corresponding virtual area network channel in the packet to be tested. After the removal is complete, the removal module 560 drives the delivery module 555 to begin transmission. In this way, the identification information of the virtual local area network channel can be avoided, and the test result is affected.

In addition, the processing component 550 can further include a quality of service queue providing module 558. The Quality of Service Queue provides Module 558 with a number of Quality of Service queues. Each service quality queue corresponds to one of the network tests 埠 530, 540. Then, when the processing component 550 receives the target test rate of the packet to be tested, the service quality queue providing module 558 can set the bandwidth of the service quality queue corresponding to the target transmission test to the target test rate, and the packet to be tested is The transfer rate is controlled to the target test rate. In this way, mention Packet testing for different rates.

In addition, the testing method or device of the embodiment of the present invention can also be applied to an existing Ethernet switch device, and the network device is tested through the existing functions of the Ethernet switch device, so Reduce the costly cost of testing devices used to test network devices.

While the invention has been described above in terms of its embodiments, it is not intended to limit the invention, and various modifications and changes can be made without departing from the spirit and scope of the invention. Therefore, the scope of the invention is defined by the scope of the appended claims.

100‧‧‧Test method

110-180‧‧‧Steps

201, 202‧‧‧ Loop 埠

203, 204‧‧‧Network Test埠

205‧‧‧Processing components

301-303‧‧‧Virtual Area Network Channel

400‧‧‧Network equipment to be tested

500‧‧‧Testing device

510‧‧‧ First loop

520‧‧‧Second Loop

530, 540‧‧‧Network Test埠

550‧‧‧Processing components

551‧‧‧ channel providing module

552‧‧‧Packing Processing Module

553‧‧‧Setting module

554‧‧‧Self-loop module

555‧‧‧Transmission module

556‧‧‧ receiving module

557‧‧‧Results acquisition module

558‧‧‧Service Quality Queue Provides Module

559‧‧‧Identification Information Processing Module

560‧‧‧Remove module

600‧‧‧Network equipment to be tested

The above and other objects, features, advantages and embodiments of the present invention will become more apparent and understood.

Figure 2 is a schematic illustration of a system to which the test method of the present invention is applied.

FIG. 3 is a functional block diagram of a test apparatus according to an embodiment of the invention.

100‧‧‧Test method

110-180‧‧‧Steps

Claims (10)

A test method for detecting a network device includes: (a) providing a first loop, a second loop, and a plurality of network test ports, wherein the first loop and the second The loops are interconnected and set to be self-loops; (b) providing a plurality of virtual area network channels on the path of the first loop and the second loop, wherein each of the virtual area networks The channel channel corresponds to one of the network test ports; (c) receives and transmits a packet to be tested to the first loop; (d) from the network test ports, selects at least one target transmission test And at least one target receives the test packet, and allocates the packet to be tested to the virtual area network channel corresponding to the at least one target transmission test port; (e) the first loop by interconnecting and self-looping And transmitting, by the second loop, the transmission rate of the packet to be tested; (f) transmitting, by the at least one target, the virtual area network channel corresponding to the test packet, transmitting the packet to be tested after the self-loop acceleration to the at least a target transmission test device connected to one of the network devices to be tested; (g) from Receiving, by the at least one target, the network device to be tested connected to the test packet, receiving at least one related packet corresponding to the packet to be tested; and (h) obtaining the test according to the execution result of steps (f) and (g) Test results of network devices. The test method of claim 1, further comprising: providing a plurality of service quality queues, wherein each of the service quality teams The column corresponds to one of the network test ports; receives a target test rate of the test packet; and, when performing step (f), transmits the service quality queue corresponding to the at least one target test A bandwidth is set to the target test rate to control the transfer rate of the packet to be tested to the target test rate. The test method of claim 1, further comprising: adding identification information of the virtual area network channel corresponding to the at least one target transmission test to the packet to be tested, wherein step (f) is based on the corresponding The identification information of the virtual local area network channel is found, and the virtual local area network channel corresponding to the at least one target transmission test is found to perform the transmission of step (f). The test method of claim 3, further comprising: after removing the identification information of the virtual local area network channel corresponding to the at least one target transmission test, performing step (f). The test method of claim 1, wherein the number of the at least one target transmission test 选择 selected in the step (d) is plural, and the test method further comprises: transmitting the target to the test 埠The identification information of the virtual local area network channel is added to the to-be-tested packet, so that step (f) finds the target transmission according to the identification information corresponding to the virtual area network channels. The virtual area network channels corresponding to the test , are performed to perform the transmission of step (f). A testing device for detecting a network device includes: a first loop 埠; a second loop 埠 electrically connected to the first loop 埠; a plurality of network test ports; and a processing component, Electrically connecting the first loop 埠, the second loop 埠, and the network test ports, wherein the processing component comprises: a channel providing module, the first loop 埠 and the second loop 埠Providing a plurality of virtual area network channels, wherein each of the virtual area network channels corresponds to one of the network test ports; a packet processing module receives and transmits the test packet to the a first loop 埠; a setting module, selecting, from the network test ports, at least one target transmission test 埠 and at least one target receiving test 埠, and assigning the test packet to the at least one target transmission test 埠Corresponding to the virtual local area network channel; a self-loop module, the first loop 埠 and the second loop 埠 are set to be self-loop, and the at least one to be tested is encapsulated in the first loop and The second loop is transmitted between the turns to accelerate the test a transmission rate of the packet, the transmission module, the packet to be tested after the self-loop acceleration is transmitted to the virtual area network channel corresponding to the at least one target transmission test, and transmitted to the at least one target transmission test terminal a network to be tested Receiving a module, receiving, from the at least one target, the network device to be tested connected to the test packet, receiving at least one related packet related to the packet to be tested; and a result obtaining module, according to the packet to be tested And transmitting the information and receiving the information by one of the at least one related packet to obtain a test result of the network device to be tested. The test device of claim 6, wherein the processing component further comprises: a service quality queue providing module, providing a plurality of service quality queues, wherein each of the service quality queues corresponds to some of the network test ports The service quality queue providing module sets the bandwidth of the service quality queue corresponding to the at least one target transmission test packet when the processing component receives the target test rate of the test packet. The transfer rate is controlled to the target test rate. The test device of claim 6, wherein the processing component further comprises: an identification information processing module, wherein the identification information of the virtual area network channel corresponding to the at least one target transmission test is added to the to-be-tested packet The transmitting module finds the virtual area network channel corresponding to the at least one target transmission test port according to the identification information corresponding to the virtual area network channel for transmission. The test device of claim 8, wherein the processing component further comprises: a removal module, removing the identification information of the virtual area network channel corresponding to the test packet, and after the removal is completed, driving The transfer module starts transmitting. The test device of claim 6, wherein the number of the at least one target transmission test 选择 selected by the setting module is plural, and the processing component further comprises: an identification information processing module, and the target is transmitted The test information corresponding to the virtual area network channels is added to the test packet, and the transfer module finds the target transfer test corresponding to the corresponding virtual area network channel identification information. Virtual area network channel for transmission.