Nuage Networks has collaborated with Red Hat to certify Virtualized Services Platform (VSP) on Red Hat Enterprise Linux OpenStack Platform, using the KVM hypervisor that is distributed and supported by Red Hat. See here for additional information on this solution and its certification across OpenStack releases. This combination of VSP and KVM is covered by Red Hat's support policy for certified components, as long as VSP is deployed on a supported version of Red Hat Enterprise Linux.
Nuage Networks has also conducted tests of VSP on Red Hat Enterprise Linux OpenStack Platform using the ESXi hypervisor, and offers support for this deployment option. Customers who want to use this configuration would contact Nuage directly for troubleshooting of any Networking issues.