Authors :
Sushovan Banerjee; Aniket Pathak
Volume/Issue :
Volume 6 - 2021, Issue 10 - October
Google Scholar :
http://bitly.ws/gu88
Scribd :
https://bit.ly/2YKlGc1
Abstract :
SDN principles may be traced back to the
separation of the control and data planes, which was
initially utilized in the public switched telephone network
to facilitate provisioning and management long before it
was adopted by data networks. The Ethane project at
Stanford's computer sciences department gave birth to
the usage of open-source software in split control/data
plane systems. The creation of OpenFlow [1] was inspired
by Ethane's simple switch design. Network controllers can
use OpenFlow to determine the path network packets go
through a network of switches. The OpenFlow standard is
managed by the Open Networking Foundation (ONF), a
user-led organization dedicated to the development and
acceptance of software-defined networking (SDN).
OpenFlow is specified by the ONF as the first standard
communications interface defined between an SDN
architecture's control and forwarding layers. Networks in
businesses must be dependable. For many years, this has
been assumed. Flexibility was not a consideration.
Software-defined networking (SDN), on the other hand, is
transforming the way IT and administrators think about
network architecture.
The original use case for an SDN was to visualise the
network by separating the system's control plane from the
data plane where traffic flows. The data center's network
traffic is handled by a smart controller running specific
software, as well as a series of routers and switches that
forward packets of traffic. Network virtualization has
several benefits: networks may be dynamically scaled up
and down, fine-tuned for specific application use cases,
and security policies can be implemented on each
individual server. Software-defined networks (SDNs)
eliminate network hardware limits, allowing you to create
more usable and responsive network infrastructures.
While the benefits of SDNs for on-premises systems are
widely known, installing them in the cloud can provide a
significant advantage. A wise IT manager can use a
hybrid SDN and cloud architecture strategy to gain the
cost-effective agility needed to respond to the
organization's infrastructure needs while also being able
to proactively address important security risks.
The subsequent sections cover the majority of the
topics needed to comprehend this material. Readers
should feel free to look up further information in the
reference section
Keywords :
SDN, OpenFlow [1], Control and Data Plane [2], ONF [4], SDN in Cloud, hybrid SDN [19]
SDN principles may be traced back to the
separation of the control and data planes, which was
initially utilized in the public switched telephone network
to facilitate provisioning and management long before it
was adopted by data networks. The Ethane project at
Stanford's computer sciences department gave birth to
the usage of open-source software in split control/data
plane systems. The creation of OpenFlow [1] was inspired
by Ethane's simple switch design. Network controllers can
use OpenFlow to determine the path network packets go
through a network of switches. The OpenFlow standard is
managed by the Open Networking Foundation (ONF), a
user-led organization dedicated to the development and
acceptance of software-defined networking (SDN).
OpenFlow is specified by the ONF as the first standard
communications interface defined between an SDN
architecture's control and forwarding layers. Networks in
businesses must be dependable. For many years, this has
been assumed. Flexibility was not a consideration.
Software-defined networking (SDN), on the other hand, is
transforming the way IT and administrators think about
network architecture.
The original use case for an SDN was to visualise the
network by separating the system's control plane from the
data plane where traffic flows. The data center's network
traffic is handled by a smart controller running specific
software, as well as a series of routers and switches that
forward packets of traffic. Network virtualization has
several benefits: networks may be dynamically scaled up
and down, fine-tuned for specific application use cases,
and security policies can be implemented on each
individual server. Software-defined networks (SDNs)
eliminate network hardware limits, allowing you to create
more usable and responsive network infrastructures.
While the benefits of SDNs for on-premises systems are
widely known, installing them in the cloud can provide a
significant advantage. A wise IT manager can use a
hybrid SDN and cloud architecture strategy to gain the
cost-effective agility needed to respond to the
organization's infrastructure needs while also being able
to proactively address important security risks.
The subsequent sections cover the majority of the
topics needed to comprehend this material. Readers
should feel free to look up further information in the
reference section
Keywords :
SDN, OpenFlow [1], Control and Data Plane [2], ONF [4], SDN in Cloud, hybrid SDN [19]
