CN102984749B - For the RFC2544 consensus standard method of wireless device performance test - Google Patents

Abstract

The invention belongs to the technical field of network test and measurement, and specifically relates to an RFC2544 protocol standard method for wireless equipment performance test. The specific steps are as follows: configure the two wireless devices in bridge mode, input the traffic of the wired network tester from the wired port of one wireless device, and then transfer it to another wireless device through the bridge between the wireless devices, and transmit the traffic from the wireless device The output of the wired port returns to the wired network tester; according to the RFC that comes with the tester? 2544 protocol test configuration module, configure various parameters such as test times, test cycle, packet size, test maximum value range, initial rate, etc. in the normal way, and set the minimum packet loss rate of 1%; run the RFC2544 protocol test, the obtained The result is a standard value for wireless test equipment performance. This method is simple, accurate, and its operation will facilitate the RFC? The application of the 2544 protocol in the field of wireless equipment promotes the standardization of the development of the wireless field.

Description

RFC2544 Protocol Standard Method for Performance Testing of Wireless Devices

technical field

The invention belongs to the technical field of network test and measurement, and in particular relates to an RFC2544 protocol standard method for wireless equipment performance test.

Background technique

The TCP/IP network system is a highly heterogeneous and open complex system. Network testing and measurement are effective ways to understand network behavior and analyze network traffic. Currently, wireless network testing is a focus in the field of network testing and measurement. However, the RFC protocol for performance testing of wireless network equipment has not kept pace with the rapid development of wireless applications.

The traditional performance test method of wireless equipment is mainly carried out by using test software. However, this type of test software has major natural defects: it is greatly affected by the performance of the test host, there is no uniform standard, and it is difficult to provide stable and reliable standard test results. Moreover, the standard network performance testing protocol RFC2544 cannot be adopted in the way of testing software.

However, this type of software testing method has always been the mainstream of wireless network equipment performance testing, such as the ixchariot used in "Wireless Mesh Network Construction and Performance Testing Based on 802.11 Protocol". It is the classic representative of wireless test software.

As shown in Figure 1, this is a wireless test case. During the ixchariot test, the performance value obtained has been jittering, and accurate results cannot be obtained. Sometimes the data value even falls near 0M. Moreover, since packet creation, packet sending, and packet receiving statistics all require a lot of resources, the value is slightly lower than the real result. In the end, the average value can only be roughly taken as the performance test result.

Contents of the invention

The purpose of the present invention is to provide a kind of method simple, the result standard is reliable, can make the testing method of wireless device accurately test by RFC agreement of wired tester, is called RFC2544 protocol standard method.

IETF's RFC2544 protocol is known as the bible of network performance testing. Only by using this protocol to test the performance of wireless devices is the most convincing. Moreover, with the development of wireless communication technology, the 802.11 series of wireless network standard protocols continue to develop, especially Since the product promotion of the 802.11n protocol standard, its theoretical throughput has reached 300Mbps. For the high throughput performance of 300Mbps, small jitters in software testing may cause huge errors. Therefore, use a high-intensity tester and refer to the standard protocol of RFC2544 network performance testing to test wireless network equipment stably, reliably and accurately performance, with urgency and necessity.

A kind of RFC2544 protocol standard method of wireless equipment performance test provided by the present invention, its specific steps are as follows:

1) Configure the two wireless devices in bridge mode, input the traffic of the wired network tester from the wired port of one wireless device, and then transfer it to another wireless device through the bridge between wireless devices, and then transmit the traffic from the wired port of the wireless device to the other wireless device. output back to the wired network tester;

2) According to the RFC2544 protocol test module that comes with the limited network tester mentioned in step 1), configure the parameters in the normal way, and set the minimum packet loss rate of 1%. The parameters include the test cycle and packet size , the number of tests, the maximum range of tests and the initial rate;

3) Run the test, refer to the RFC2544 protocol to run 1 or 2 times, and the result obtained is the standard value of the performance of the wireless test equipment.

In the present invention, the test period in step 2) is 60 seconds.

In the present invention, the packet size in step 2) is 64byte, 128byte, 256byte, 512byte, 1024byte or 1518byte.

In the present invention, the wireless devices are mainly wireless APs, including APs of ARUBA Company, APs of CISCO Company, and APs of major AP manufacturers that support bridging between APs.

In the present invention, the used network tester of this test method is a formal tester, and only requires that the tester can use the configuration of the RFC2544 protocol. The current relatively well-known network testers in China include Spirent's Testcenter tester or Ixia's XM series, 400T Testers, etc., currently support the standard test of the RFC2544 protocol.

The present invention has following beneficial effects:

1) Through the use of the tester and the application of the RFC2544 standard protocol, the accuracy of the wireless device performance test is greatly improved;

2) There are also dedicated wireless testers on the market, but their prices are extremely high, and they cannot use the RFC2544 protocol, and their accuracy cannot be compared with this test method;

3) The operation of this test method will promote the application of the RFC2544 protocol in the field of wireless equipment, and promote the development of norms in the wireless field.

Description of drawings

Figure 1 is an illustration of ixchariot software testing.

FIG. 2 is a schematic diagram of a Testcenter test method for bridging between APs.

Figure 3 is a graph of the standard RFC2544 protocol throughput test report for the AP of Company A.

Figure 4 is a diagram of a test report of the standard RFC2544 protocol for the AP of Company A.

detailed description

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

Example 1

Take AP as an example for wireless devices, and take TestCenter of Shanghai Education Science Network IPv6 Laboratory Evaluation Center (jointly established with Fudan Information Office) as an example for testing instruments.

1) As shown in Figure 2, configure the two APs in bridge mode, and the two APs are bridged to each other through configuration, and connect to TestCenter in the following ways;

2) The traffic of the network tester is input from the wired port of the AP at one end, and then transmitted to the AP at the other end through the bridge between wireless, and then output from the wired port of the AP and returned to the tester;

3) According to the RFC2544 protocol test module that comes with the tester, and make corresponding configurations, configure the test cycle, packet size, test times, test maximum value range and initial rate and other parameters in the normal way, and use 1% packet loss The rate is the lowest limit (the wireless 0% packet loss rate cannot be guaranteed, which is determined by the openness of the channel and the susceptibility to interference);

4) Run the test, run 1-2 times according to the RFC2544 protocol, and the result is the standard value of the wireless test equipment performance.

The evaluation center conducted tests based on the RFC2544 protocol for the APs of three regular manufacturers. The test used the 1518-byte packet unidirectional transmission data throughput of the 802.11n protocol at the 2.4G frequency to obtain the test results.

The specific embodiment is as follows: the AP products of companies A, B, and C are respectively subjected to a throughput test complying with the RFC2544 protocol by using a network tester. Test environment: In a non-interference environment, the APs to be tested are placed close to each other, and all use the 802.11n protocol to connect wirelessly through a bridge. In the test, the packet length is 1518 bytes, the period is 60 seconds, and the packet loss rate of 1% is set as the minimum packet loss rate threshold; the measured throughput is the maximum one-way throughput. Among them, the product AP of company A is named a, and the test report results are shown in Figure 3 and Figure 4:

According to the test results of the RFC2544 protocol, the throughput rate of AP product a is 31.625%; the report in Figure 3 also has a synchronous record of the test process; similarly, the measured throughput rates of products b and c are 10.875% and 10.875% respectively. 30%.

The manufacturers of each product have accepted the test results. After comparison, both product a and product c have ideal results measured under the RFC2544 protocol, and the results measured by the RFC2544 protocol in the tester can be repeated, and the error is far smaller than the error and fluctuation of software testing. The test results of product b fluctuated slightly, but the investigation found that the company's AP products had just come out, and the fluctuations under the RFC2544 standard protocol test were still smaller than those of the software test, and the results were completely in line with their expectations.

Therefore, the invention method of RFC2544 protocol combined with network tester to test the throughput performance of AP equipment can obtain standard results accurately and stably, has good universality, and is a new advancement in throughput testing technology of wireless AP equipment.

references

Guo Yanling RFC2544 Protocol Standard Method for Performance Testing of Wireless Devices, Data Communication 2010.6.

Claims (4)

1., for a RFC2544 consensus standard method for wireless device performance test, it is characterized in that, concrete steps are as follows:

1) wireless device configuration of two same models is become bridge mode, by the wired mouthful input of the flow of cable network tester from a wireless device, be delivered on another wireless device by the bridge joint of wireless again, and get back to cable network tester from wired mouthful of output of this wireless device;

2) according to the RFC2544 protocol test module that the tester of cable network described in step 1) carries, by parameter by normal mode configuration, and be minimum restriction with 1% packet loss, wherein said parameter comprises test period, bag size, testing time, test are worth scope and initial rate most;

3) testing results, runs 1 ~ 2 time with reference to RFC2544 agreement, and namely acquired results is the standard value of the wireless device performance test of same model.

2. RFC2544 consensus standard method according to claim 1, is characterized in that, step 2) described in test period be 60 seconds.

3. RFC2544 consensus standard method according to claim 1, is characterized in that, step 2) described in bag size be 64byte, 128byte, 256byte, 512byte, 1024byte or 1518byte.

4. RFC2544 consensus standard method according to claim 1, is characterized in that: described wireless device is wireless aps; The AP of bridge joint between the support AP comprising AP and the Ge great AP manufacturer of AP, CISCO company of ARUBA company.