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Non-IP
Networking (NIN)
INTRODUCTION
Networking for the age of virtualization
In traditional networking, each technology has a fixed
format for packet headers, which is the same throughout the system, and the
headers carry all the information needed to forward the packet to its
destination. Line speeds are high enough that hardware assistance in
interpreting incoming packets is needed, and new hardware is needed if a new
format is to be introduced. This is why the implementation of IPv6 has taken
more than 20 years.
Software-Defined Networking (SDN) computersmarketing recognizes that most packets are part of a “flow,” and most of the decisions the system has to make are per-flow rather than per-packet. For instance, the “next hop” from a switch towards the destination hollyhealthfitness will be the same for every packet on a flow; and packets carrying live audio or video stream will arrive at regular intervals and require to be forwarded promptly, whereas those that are part of a TCP session can join a low-priority queue, being discarded if the queue is full. Furthermore, battery-operated constrained IoT devices generally interact with a unique endpoint in their lifetime, webtechgalaxy so a “flow,” kept active for a long time, makes it possible that the messages are forwarded promptly in order to minimize the battery consumption.
Currently, traditional packet headers are used; this means that typically five separate fields in the packet header must be inspected to identify the flow, and additional healthbeautystudio protocols are needed to convey any information that isn’t included in the packet headers.
It also means that an application wishing to access a
service identified by a domain name, or a virtualized network service, has to
find an IP address that identifies the location where the service is provided.
ISG NIN is standardizing the concept of a flow, control plane
protocols for managing flows, and appropriate packet formats.
The title, Non-IP Networking, emphasizes that the technology
is not dependent on IP packet formats or protocols; however, it supports the
TCP/IP suite as well as other systems such as Information-Centric Networking
and RINA.
Packet formats are appropriate to the physical layer
technology of each link; for instance, a higher-capacity link will support more
flows. Introducing a link with a new format does not require any change to the
rest of the system.
Recognizing that networks will carry an increasing amount of
time-critical traffic – not only live audio and video but also applications
promised for 5G such as industrial automation and remote surgery – and that
traditional store-and-forward packet networks struggle to reliably achieve the
sub-millisecond latencies that some of these applications require, NIN defines
two kinds of flow. “Basic” flows provide the best-effort service with queues
that are traditional for packet networks, while “guaranteed” flows provide a
service for time-critical traffic. The two services can be multiplexed so that
all the capacity not occupied by guaranteed service data (including capacity
reserved but not used) is available to the basic service.
To provide the lowest latency, the guaranteed service can be
implemented in a way that is more like the “routers” that switch point-to-point
audio and video. It can also be carried over to other technologies such as TSN;
the latency (which will be higher in that case) is reported in the control
plane messages that set the flow up.
OUR ROLE & ACTIVITIES
NIN vision
The Industry Specification Group on Non-IP Networking (NIN)
has been set up to standardize a digital communications technology fit for the
21st century.
Our vision is a much more efficient system that is far more
responsive to its users.
We have identified a number of technical issues with the
current (TCP/IP-based) technology, which prevents it from delivering the
required levels of service without excessive complexity or, in some cases, at
all.
The new protocols will provide:
·
virtual elimination of delays in forwarding
real-world signals: not only audio and video but also tactile feedback and the
position of vehicles or industrial robots
·
multicasting of live content (such as sports
events) to an unlimited number of subscribers
·
more efficient use of spectrum and of processing
power
·
better security, both privacy, and resilience to
denial-of-service
·
better performance when accessing remote content
such as web pages
·
ways of guaranteeing network service
sustainability
·
extensibility: packet formats do not have to be
the same throughout the system, and introducing new features such as a new kind
of addressing only affects the control plane messages