The Development Of A TTCN-3-based Automated Testing For VLAN

In the practical application, communication quality requirements are increasingly improved. Functionality and reliability of communication equipments have become even more important, the software testing as the last guarantee of a communication system entering the market has been paid more and more attention. A lot of software testing work also contributes to the improvement of software automation. The major communication companies have increased investment in automated development tools. TTCN-3 as the current European and American main automated testing language has a wide range of adaptability. This thesis studies the language of TTCN-3 and selects VLAN as an automated tool development object. In the end I have developed the automated test tool.The main works of this thesis are as follows:1. TTCN-3 and TCL test tool language are introduced. On a test platform the compatibility between TTCN-3 and TCL language is performed.2. Through studying the 802.1Q VLAN standard protocol, a TTCN-3 tool for VLAN protocol is achieved.3. The code of the test tool of TTCN-3 and TCL are finished, including the ASN file, the Template part, the Testcase part, the Function part of the TTCN-3 language section and the TCL language section.4. The thesis realized the compatibility between TTCN-3 and TCL language and VC project calling the network card. By calling SA and PA files, packets are grabed using PC network card for a long time and the results are achived through the judgment of the Testcase. At the same time the result of pass or fail is output to the test file.