QoS and QoS in IPv6

QoS and QoS in IPv6

ABSTRACT 

It is as difficult today to predict the future of the Internet and electronic commerce Internet2 is expected to be involved in scientific and business research and development, but we simply cannot foresee all the ways in which the Internet of the future will be used or what its full impact will be. What we do know, however, is that the Internet is already transforming business, education, and entertainment, and affecting nearly every aspect of our lives. Most descriptions of the future of the Internet have focused on bandwidth. But the next-generation Internet is about much more than high-speed networks. In essence, it is about applications. The issue is not what the technology can do, but what we can do with it.
The primary aim of upgrading the internet protocol from version 4 to version 6 is to increase this address space. However, as ideas in computer science have evolved over the years since IPv4 was designed, the opportunity was taken to attend to several other concerns at the same time. One of these was the lack of QoS fields in the current header for each packet. Below we will discuss in depth what these headers look like under IPv4 and IPv6, and why these changes have been made.

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