[e2e] Protocols breaking the end-to-end argument

John Kristoff jtk at depaul.edu
Wed Oct 28 05:21:20 PDT 2009

On Wed, Oct 28, 2009 at 06:44:23AM -0400, Dave CROCKER wrote:
> >etc.) when it was still half-duplex thin-net, which was replaced
> >by 10-megabit twisted-pair into hubs, *then* 100-megabit
> >twisted-pair into switches.
> Yup.  "Ethernet" collision-free switches came quite a bit after real 
> ethernet dominated LANs.

10 Mb/s Etherhet LAN switches arrived even before 100 Mb/s Ethernet
was available, largely thanks to Kalpana (eventually bought by Cisco).
In addition to hubs and other reasons, switches really helped answer
criticisms of competing technologies such as Token Ring, eventually
leading to Ethernet becoming the RS-232 of LAN technology.


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