TCP/IP I am sorry will go down in history as the most insecure and worst collection of protocols ever conceived.
The origins of TCP/IP are well know as it was created by the US Government and bell Labs in 1979. It was to provide a vehicle that could network US Military missile silos and internal comms. It was abandoned because the protocol was subject to potential abuse and not considered a secure comms protocol. I think you need to have a look at the beginnings of TCP/IP and realise why is was dumped. http://64.233.167.104/search?q=cache:CCf8DOW0v1QJ:csrc.nist.gov/publications/secpubs/ipext.ps+tcp/IP+fails+bell+labs&hl=en&ct=clnk&cd=5&gl=au&client=firefox-a But so much money was spent on development, Microsoft saw an instant market for its use. TCP/IP because of its flexibility provided the vehicle for the world wide web which was essentially meant to transfer information. As the web grew the issues of innate design flaws in the protocol needed patching up to provide HTTP/SSL. It is important to realise that the TCP/IP fundamentally failed as a secure comms transport because of the ability for an intermediate intercept being not only able to join the a data stream from A - B, but more over was capable of permitting a third party to escalate their own authority, despite not being a part of the communications from A - B. In Australia we will NOT use TCP/IP for government or direct Banking requirements. Thats why do don't worry about massive amounts of data being hijacked. You will recall the latest computer fraud in the USA where a merchant lost over 200.000 customer credit details etc. http://www.merchantaccountblog.com/archives/268 http://www.google.com.au/search?q=data+loss++in+us+merchant+in+2007&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:en-GB:official&client=firefox-a ALL government Mainframes and law enforcement use SNA here and we are not about to dup it in the short term. We don't have Data high jacking in this country as a result. With respect to token ring - Do not dismiss the topology as it is capable of carrying many transport layers. The issues of speed that have been tanked about are wrong. Token ring submits 1 token at a time - It does not use multiple tokens. The topology is dependant on the speed it takes from 1 token to pass the logical LAN with many Lans coming from different routers (not MAU's). Speed issues have improved out of sight since original design. The major issue early on was that the cable that token ring requires is as expensive as hell, Unshielded twisted pair is a cheap as chips. http://www.google.com.au/search?q=token+ring+multiple+protocols&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:en-GB:official&client=firefox-a Scott ;-) G T Smith wrote: > John Andersen wrote: >> On Wednesday 13 June 2007, Registration Account wrote: >>> and IBM invented >>> token ring >> Another roaring success story. Gad what a hopelessly >> complex and expensive network. The sad part is they >> "invented" it while the unix world was happily running >> TCP/IP. > > >
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