networking today and the future

8/7/2019 NETWORKING TODAY AND THE FUTURE

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NETWORKING;

TODAY AND

THE FUTURE


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Wireless Networking

Computers are connected to a wireless network through wireless base stations

that allow them to connect dozens of computers at a time without having to lay

expensive physical infrastructure

Using the IEEE 802.11 wireless protocol, the base stations have a range of up

to 150 meters and will connect even when there are walls in the way

The cost of wireless networking technology would continue to fall as bandwidth

expands and doubles from the existing 11Mbps to 22 Mbps by mid 2001

Much improved security is ensured, with encryption that was on a per-user per-

session basis, as opposed to a shared-key encryption that was common to all

users in a session e.g. by using Lucents brand new AS2000 technology


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Open Sesame Concept & Protocol

The concept ofopen wireless systems refers to standards-based interface

protocols between radio base stations, mobile switches and other network-

infrastructure components

Wireless network systems are becoming very common due to high volumes of

data transfer, that is time-consuming on land-lines

The optimal network system is attained through an open, plug-and-play system

approach

There is a wide variation depending on the markets served. Some regions require

sophisticated, feature-rich applications with high bandwidth and high mobility for

both voice and data services. Other regions need only a fixed-wireless or WLL

application that provides basic POTS-like service


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Standards such as ANSI-41 are defined and widely followed in order to implement

and integrate internet solutions from multiple vendors in a single network

Similar to the ANSI-41, the A interface gives providers more flexibility to choose

between radio-base-station and mobile-switch infrastructure vendors

Standards are being forged and open-infrastructure systems are becoming areality. The ANSI-634 standard is in place today for AMPS, TDMA and CDMA

Even with an approved standard, it will be difficult to provide interoperability of

multiple-infrastructure-vendor systems. Service providers are going to drive the

evolution to open interfaces, allowing them to deploy multivendor base stations in

their networks


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Satellite-based Networks

By 2002 broadband Internet access via satellite will be price and speed competitive

with the land-based competition

It will take 600 milliseconds (approx.) to transfer the information packets over

TCP/IP, 200 milliseconds more than its land-based competition

LEOS orbit the Earth at a height of just 500 to 1,000 miles. This makes them

capable of providing smaller, more energy-efficient spot beams, and delivers latency

potentially equal to (or better than) transcontinental fiber optic cable

In order to communicate over the satellite, the TCP/IP protocol will have to be

customized


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There are physical restraints in deploying LEOS such as data latency issues

and also communication between the birds

High Altitude Long Operation (HALO) technology by Angel Technologies in

LA, uses small planes that act as LEOS but with reduced latency problems and

maintenance issues

Analysts say that satellite technology will not be available soon. The real

problem is economics. Though satellite vendors tout their abilities to bring

high-speed networking anywhere in the world, they wont be able to make a

living serving only developing nations. They need to gain revenue serving

wealthy, bandwidth-hungry places such as Silicon Valley. Unfortunately, those

areas already have plenty of terrestrial broadband options, and customers

wont necessarily flock to towers in the sky.


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Neural Networking Technology

The technology studies the target environment, becomes familiar with its daily

behavior, identifies when the system is going out of its normal operating state andnotifies network administrators

A typical prediction of a problem issued by Neugents (CAs Windows NT server-

based network agents) may look like: "At 11:00, Neugents predict a 95% probability

that server AB232 will run out of virtual memory in approximately 45 minutes."


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Analysts believe that Nugents is susceptible to failure because;

Failure to estimate the unpredictabilities, faced by a normal server

Nugents initial focus is on systems, primarily NT, with no support for the

network/application infrastructure

Nugent doesn't take into account the interdependencies of multi-level protocol

stacks involved in every networked application transaction


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Thank you for being such a good

audience !

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questions.


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networking today and the future

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