Cloud computing is emerging to host different
services on high end compute nodes of Data center with
increasing demands of social networking, video streaming, big
data processing and other internet applications. With this
approach resource sharing is achieved for compute,
networking and storage to reduce the OPEX and CAPEX.
Network Function Virtualization(NFV) is big part of cloud
computing and has evolved as a proposal from operators for
hosting network services as network functions implemented in
software, which may be launched on the Virtual machines
(VMs) dynamically based on the demand in the form of
VNFaaS. With elasticity and agility of vendor independent
network services coming up and going down in the cloud,
chaining of network services gets affected in the End-to-End
(E2E) deployment.
Software defined networking (SDN) is complimentary
technology to NFV for achieving unified network abstraction
to expand data flow control in the form of virtual switch. SDN
plays major role in the infrastructure of NFV. SDN makes
networks more flexible, dynamic and cost-efficient, while
greatly simplifying the operational complexities.
This paper's main focus is to define, review and evaluate the
architectural framework approaches of scalable compute node
with NFV and SDN for addressing various challenges on Data
center in the form of Network Security Function Virtualization
(NSFV) over Openflow infrastructure. Key challenges in data
center include network service provisioning & monitoring,
E2E Security, network function virtualization in multi-tenant
environment, software defined networking control for Service
chaining of virtual network security functions and
performance.
The main aim of this paper is to provide comprehensive global
forum for researchers to present the challenges and novel
approaches of ongoing research in the state-of-art areas of
cloud computing architectures with NFV and SDN relevance to
Datacenter