The customer is the Eastern European subsidiary of a leading tier-1 mobile network operator (MNO) that operates GSM, UMTS and LTE-based cellular networks in Europe, Canada and US. The operator is the largest MNO in the country and one of the most significant MNOs in the region.
As part of a complex migration project we were delivering to the tier-1 MNO, DigitalRoute’s MediationZone system had to be upgraded from version 5.0 to version 5.1 and to another server. The off-line processing was handled by the FTP protocol and the whole on-line processing was based on Diameter. There were a few network elements (SGSN, GGSN, etc) that were sending messages over Diameter to the mediation solution. During the migration project, Computaris had to check if all messages were being decoded and processed in the same way on both versions of the mediation solution.
Computaris contribution and solution
Computaris captured the traffic from all the systems and stored it as PCAP files. The TOP Testing Suite Diameter plugin gave us the possibility to load Diameter messages from PCAP files directly into JMeter test plans and thus minimize the testing efforts and assure a safe migration. We commenced the process by analyzing those protocol dumps and saving filtered messages in files dedicated for specific test cases. Creating messages in the automated testing tool was just 5 clicks away and could be done extremely easy and fast.
The migration process was significantly faster and was successfully finished in due time. Furthermore, the operator is now using the automated testing tool for additional testing activities as he acknowledged its value and capability to reduce the time to market and the costs associated to testing new products, product enhancements and validation of deployment and system integration services.