08-02-2012, 04:04 PM
INTERNET PROTOCOLS
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INTRODUCTION:
What is a Protocol? What is this stuff? Well, a Protocol is a set of rules, which is used for connecting some computers in a network. As for example a man goes to some different land and want to find his destination. Then there should be some standard pattern for such people to talk to each other or to communicate. These standard patterns are some set of rules with which you need to send your data to this distant land and talk to the person. Thus there is standard set of Protocols without which our communication is impossible for the Network Of Networks or INTERNET. These Protocols are thus called INTERNET PROTOCOLS.
At the end of 2002, an international team from California and the Netherlands sent 6.7 gigabytes of data across 6,821 miles of fiber-optic network in less than one minute. That's roughly two full-length DVD-quality movies traveling a quarter of the way around the Earth at an average speed of 923 megabits per second. Believe me that's fast.
The present version of the Protocol we are using is the Internet Protocol version 4, which is successful for many of the applications on the Internet. But with the latest trends in the technology we are about to get yet another version of the World Favorite Protocol which is the version 6. Yes, with the help of science and technology we have got a new solution to Ipv4 and probably its successor in the near future called INTERNET PROTOCOL Version 6 which is the topic of discussion below. It will change the entire meaning of Internet connecting itself with the upcoming technologies such are Internet2 and Quality Of Service (QoS). Let’s see about this version in detail now.
1.1.) WHAT’S IPV6?
IPv6 is short for "Internet Protocol Version 6". IPv6 is the "next generation" protocol designed by the IETF to replace the current version Internet Protocol, IP Version 4 ("IPv4").
Most of today's Internet uses IPv4, which is now nearly twenty years old. IPv4 has been remarkably resilient in spite of its age, but it is beginning to have problems. Most importantly, there is a growing shortage of IPv4 addresses, which are needed by all new machines added to the Internet.
IPv6 fixes a number of problems in IPv4, such as the limited number of available IPv4 addresses. It also adds many improvements to IPv4 in areas such as routing and network auto configuration. IPv6 is expected to gradually replace IPv4, with the two coexisting for a number of years during a transition period.
Some introductory information about the protocol can be found in our IPv6 FAQ. For those interested in the technical details, we have a list of IPv6 related specifications.
1.2.) WHY IPV6?
It is a problem that these features are optional for IPv4, and it is very important to include features of IPv6 into the basic spec. If you don't see why, imagine the following
story: You are very novice user of the Internet, who can hardly do if config or routing setup. You carry along your laptop, and visited some university for presentation. Just after you connected your laptop to the local network, the chairman said that there is no DHCP server available in the university, and administrator took a day-off.
