What is the role of OpenStack as defined by ETSI?
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OpenStack is a cloud computing platform that provides a set of open-source tools for building and managing cloud infrastructure. The European Telecommunications Standards Institute (ETSI) is a standardization organization that defines the requirements and specifications for network functions virtualization (NFV).
According to ETSI, OpenStack has a specific role in NFV, which is to act as a Virtual Infrastructure Manager (VIM). A VIM is responsible for managing the virtualized compute, storage, and network resources required for building and running virtual network functions (VNFs).
In other words, OpenStack interacts with multivendor compute and storage resources to provide the infrastructure needed for VNFs. It provides a set of APIs for creating and managing virtual machines, storage volumes, and networks, which can be used to build VNFs. OpenStack also provides features like security, scalability, and fault tolerance, which are essential for running network functions in a production environment.
While OpenStack does have some capabilities related to SDN, such as the ability to create virtual networks and routers, it is not primarily an SDN subsystem that handles the data and control planes of network functions. That role is typically performed by a separate SDN controller.
OpenStack also has some features related to VNF management, such as the ability to monitor and scale VNFs, but it is not primarily a VNF manager that handles the lifecycle management of VNFs. That role is typically performed by a separate VNF manager.
Finally, OpenStack is not an NFV orchestrator that handles the lifecycle management of network services. That role is typically performed by a separate NFV orchestrator, which uses input from the VNF manager and other sources to coordinate the deployment and management of network services.
In summary, the role of OpenStack as defined by ETSI is to act as a VIM that interacts with multivendor compute and storage resources that are required for building VNFs.