Network testing supplier Viavi is claiming the “first comprehensive test suite” for O-RAN specifications. Interoperability testing will clearly be essential for operators which want to deploy multivendor networks, especially if they do not have extensive inhouse capabilities. Back in the days of WiMAX buzz, one of the benefits that platform promised was a centralized, open interoperability testing program, similar to the WiFi Alliance’s for WLAN, which would lower costs of entry for deployers and vendors. The same will be necessary to make O-RAN deployable by operators which do not have deep pockets and large teams of experts. Even for those engineering-focused MNOs, there will still be many challenges. As Viavi put it, ensuring interoperability in a multivendor RAN environment “will…