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According to the use cases #1, #2, #3, #5, #6, #7, #8, #9 described in the ETSI GS NFV 001 and the architecture framework in ETSI GS NFV 002, the NFV cloud will be geographically distributed in multi-site, and multiple VIM instances may be deployed. And the NFV cloud will also co-exist with the non-virtualized traditional telecom network, as illustrated in the following picture.

In this project, we will focus on OpenStack as the VIM. The project is to identify the gaps and requirements for the OpenStack to support multi-site NFV cloud scenario, where VNFs deployed in multiple OpenStack instances and co-work with PNFs together. There are lots of issues need to be addressed:

• What’s the requirement for Neutron to support VNF to VNF, VNF to PNF networking mode in multi-site, L2 or L3? Through flat network or project level isolated network? With or without tunneling? etc.
• Should OpenStack help to provide VNF cross site high availability / load balance / disaster recovery / backup / restoration / migration?
• Should OpenStack to support VNF image replication in multi-site automatically.
• Should quota control be implemented for one project spread into multi-site?
• What’s the impact on OpenStack interface to support these required features?
• …