Four-year-old company Cape Networks - which was acquired by networking giant Aruba (itself a Hewlett-Packard Enterprise company) in March - was built on answering one question: what is the user experience on a network?

This is harder to do than it seems. Typically, network administrators are measuring bandwidth or throughput, which is not really taking into account how well applications are functioning. And just because the network is up, doesn't mean it's working optimally.