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. > > You're confusing stack levels. TCP/IP runs fine over token ring as it does over most other network technologies. Also, years ago, token ring had many performance advantages over the ethernet of the day. For example, with ethernet, collisions had a significant limiting effect on usable bandwidth. Token rings are also deterministic, which means you knew the maximum time for the data to be transferred. This is important in some critical situations. The change to ethernet switches eliminated or greatly reduced those advantages.
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