5GTANGO 5G PPP Phase 2 project released a new blog post !
One of the biggest challenges in the Telecommunications DevOps environments is the Validation and Verification (V&V) of Virtual Network Functions (VNF) and Network Services (NS) against different execution platforms. The V&V process allows service operators to have some level of confidence in third-party hosted code so they can be sure that VNFs and NSs will behave as expected immediately after they are deployed and put into production.
Similarly to the DevOps process, V&V is well-established in the software industry, where verification relates to compliance of the System Under Test (SUT) to the requirements (functional or not), whereas validation relates to testing whether it can address a (business) need.
As the issue of validation is critical, ETSI NFV ISG has released a number of documents approaching the need and the framework for pre-deployment validation and testing, as well as interoperability and portability. The issue of verification of NFV NSs is also addressed by NFV Research Group. The current outcomes of the working group mainly focus on the problem statement and the challenging issues that the verification of NSs faces. In addition to the above, standardisation/specification groups and open source initiatives are also addressing verification and validation, such as, for example, OPNFV. In the industry sector, validation frameworks for NFV environment and VNFs have already been proposed, with some organisations offering a portfolio of products addressing this topic.
As noted 5GTANGO is effectively an elaboration of the current trend to include testing frameworks in the Devops pipeline focusing on the needs of the telecom sector.
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