Аннотация
—The virtualization of SDN networks boosts flexibility in communication networks further by combining the
programmability of SDN with the flexible sharing of the infrastructure due to network virtualization. The main element
to realize this combination is the SDN network hypervisor
interacting on the control traffic between tenant SDN controllers
and the shared physical infrastructure. We outline the current
challenges of designing an SDN hypervisor, and we present
updates on HyperFLEX, a reliable and flexible SDN hypervisor,
which targets at solving the existing challenges. Furthermore, we
provide a short outlook into future research directions, such as
providing switch diversity abstraction and precise estimation of
control plane resources that are needed to realize a flexible and
efficient virtualization of SDN networks.
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