Module 3.pdf - IoT(15CS81 Module 3 IP as the IoT Network...

IoT (15CS81)
KSSEM,CSE Page 1
Module 3
IP as the IoT Network Layer, The Business Case for IP, The need for Optimization, Optimizing IP for IoT,
Profiles and Compliances, Application Protocols for IoT, The Transport Layer, IoT Application
Transport Methods.
Chapter 5
IP as the IoT Network Layer
5.1 The Business Case for IP
Data flowing from or to “things” is consumed, controlled, or monitored by data center servers
either in the cloud or in locations that may be distributed or centralized.
5.1.1 The Key Advantages of Internet Protocol
One of the main differences between traditional information technology (IT) and operational
technology (OT) is the lifetime of the underlying technologies and products.
Followings are the key advantages of the IP suite for the Internet of Things:
1. Open and standards-based: TheInternet of Things creates a new paradigm in which
devices, applications,and users can leverage a large set of devices and functionalities
whileguaranteeing interchangeability and interoperability, security, andmanagement. This
calls for implementation, validation, and deployment ofopen, standards-based solutions.
While many standards developmentorganizations (SDOs) are working on Internet of
Things definitions,frameworks, applications, and technologies, none are questioning the
roleof the Internet Engineering Task Force (IETF) as the foundation forspecifying and
optimizing the network and transport layers.
2.
Versatile: Even if physical and data link layers such as Ethernet, Wi-Fi, and cellular are
widely adopted, the history of data communications demonstrates that no given wired or
wireless technology fits all deployment criteria. Furthermore, communication
technologies evolve at a pace faster than the expected 10- to 20-year lifetime of OT
solutions. So, the layered IP architecture is well equipped to cope with any type of
physical and data link layers
.
3. Ubiquitous: All recent operating system releases, from general-purpose computers and
servers to lightweight embedded systems (TinyOS, Contiki, and so on), have an
integrated dual (IPv4 and IPv6) IP stack that gets enhanced over time. In addition, IoT

IoT (15CS81)
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application protocols in many industrial OT solutions have been updated in recent years
to run over IP. While these updates have mostly consisted of IPv4 to this point, recent
standardization efforts in several areas are adding IPv6. In fact, IP is the most pervasive
protocol when you look at what is supported across the various IoT solutions and industry
verticals.
4.
Scalable: A dding huge numbers of “things” to private and public infrastructures may
require optimizations and design rules specific to the new devices. However, you should
realize that this is not very different from the recent evolution of voice and video
endpoints integrated over IP. IP has proven before that scalability is one of its strengths
.