TCP/IP already supports over 4.8 million hosts with up to 45-MBPS
             transit facilities and a wide variety of access links. Its architecture is
             evolving to support millions of end users, gigabit-per-second backbone
             links, and up to gigabit-per-second communication between individual pairs
             of end users. These three aspects of growth impose different requirements,
             but probably will evolve simultaneously.
             In the twenty- first century, Internet service may be nearly as useful
             and easy to use as a telephone service, enabling people to work with
             information resources and processors, regardless of their locations.
             Businesses and individuals can feel confident using TCP/IP now, because
             TCP/IP architecture is evolving to handle large, faster networks, that will
             continue to support today's applications, transmission media, and protocols,
             as well as new applications, transmissions media, and protocols.
             ...