Software-defined networking (SDN) in ot control network by enabling enterprises and service providers to respond quickly to changing business requirements. For more details visit us: https://www.konverge.co.in/what-is-sdn-software-defined-networking-in-iot/

1. What is SDN (Software-defined Networking) in IoT?
The Internet of Things (IoT) is an emerging paradigm that appeared with the outbreak of the
number of devices connected to the Internet. It may be described as a network where everything
can interact and communicate without human involvement; this idea is one of the most well-
known technologies and a key component in the creation of apps for smart cities. The difficulties
this technology faces, such as security, prevent it from reaching its full potential. Software-defined
Networking in IoT is a potential solution to this. Let’s discuss the security problems of IoT and
SDN and know how SDN can contribute to overcoming the security challenges of IoT.
What is Software-defined Networking in IoT?
To make networks more adaptable and flexible, Software-defined Networking in IoT is an
architecture that easily abstracts many different layers of a network. SDN aims to improve
network control by enabling enterprises and service providers to respond quickly to changing
business requirements.
Different types of software-defined networking
Primarily, there are 4 types of Software-defined Networking in IoT, each with its own benefits:
1. Open SDN: Open SDN uses open protocols to control the virtual and physical devices
responsible for routing the data packets.

2. 2. API SDN: API SDN uses programming interfaces, called southbound APIs, to control data
flow to and from each device.
3. Overlay Model SDN: Overlay Model SDN creates a virtual network above existing
hardware, providing tunnels containing channels to data centers. This model then
allocates bandwidth in each channel and assigns devices to each channel.
4. Hybrid Model SDN: Hybrid Model SDN combines SDN and traditional networking,
allowing the optimal protocol to be assigned for each type of traffic. Hybrid SDN is often
used as a phase-in approach to SDN.
Why Software-defined Networking is important in IoT?
Software-defines Networking in IoT represents a substantial step forward from traditional
networking in that it enables the following:
Increased control with incredible speed and flexibility: Instead of manually programming
multiple vendor-specific hardware devices, developers can control traffic flow over a network by
programming an open standard software-based controller. Since they can select a single protocol
to communicate with any number of hardware devices through a central controller, networking
managers also have more freedom when selecting networking equipment.
Customizable network infrastructure: With a software-defined network, administrators can
centrally design network services and instantly assign virtual resources to change the network
infrastructure. This enables network administrators to prioritize applications that call for greater
availability and optimize the data flow via the network.
Robust security: A software-defined networking in IoT provides visibility across the whole
network, giving security threats a complete picture. With the proliferation of intelligent devices
that connect to the Internet, SDN offers clear advantages over traditional networking. Operators
can create separate zones for devices requiring different levels of security or immediately
quarantine compromised devices so they cannot infect the rest of the network.
The risks of software-defined networking in IoT
As we have seen, software-defined networking (SDN) can benefit an organization in many ways,
including increased agility and control, simplifying management and configuration, and providing
more robust security. The controller must maintain a secure network. Being centralized could be
a single point of failure. This potential vulnerability can be reduced by establishing controller
redundancy on the network with automatic fail-over. Although it could be expensive, doing this
to maintain business continuity is no different from adding redundancy to other network
components.
How is software-defined networking in IoT different from Traditional Networking?
The critical difference between SDN and traditional networking is infrastructure: SDN is software-
based, while traditional networking is hardware-based. Because the control panel is software

3. based, SDN is much more flexible than traditional networking. It allows administrators to control
the network, change configuration settings, provision resources, and increase network capacity
from a centralized user interface without adding more hardware.
Additionally, there are security distinctions between SDN and traditional networking. Software-
defined networking (SDN) offers superior security in many aspects because of its increased
visibility and capacity to define safe paths. However since software-defined networks rely on a
centralized controller, protecting the controller is essential to upholding the security of the
network. A possible weakness of SDN is represented by this single point of failure.
Software-defined networking in IoT and Konverge Technologies
The purpose of modernizing network infrastructure has been instrumental in the digital
transformation efforts of many organizations. (SDN) Software-defined networking in IoT provides
organizations with a greater granularity of control for modern infrastructure that is scalable,
flexible, and secure.
Find out how Konverge Technologies SDN solutions provide agility and help you modernize your
data.