Changing telcos’ systems from a legacy to a virtualised model is a bit like building an autonomous car from a moving steam locomotive. In this report, we look at the relationship between NFV (Network Functions Virtualization) and OSS (Operations Support Systems), and the difficulties that operators and the developer community are facing in migrating from legacy OSS to NFV-based methods for delivering and managing communications services.
The early high hopes for SDN and NFV have given way to the realization that the road to cloud-telco ‘heaven’ is strewn with ‘infernal’ rocks and pitfalls. We present the “devil’s advocate’s” (i.e. an extremely sceptical) view of NFV set out in eight indictments. We then examine the argument for the defence.