[ih] ARPA initial IMP-IMP line speed

[kent at icann.org]

On Tue, Feb 24, 2004 at 09:39:40PM +0000, David L. Mills wrote:
> Chris,
> 
> The IMP interface is described in BBN Report 1822, which I have. There
> were companion documents for the Digital Equipment IMP-11A interface for
> the PDP-11 Unibus which I don't have. My first ARPAnet connection at
> COMSAT Labs was a 4800-bps analog link to BBN; later I connected with
> 56-kbps DDS and IMP 29 at Mitre. Toward the end of ARPAlife I connected
> from UDel via 56-kbps DDS to IMP 112 somewhere in WashDC. Scary to think
> now I have 100-Mbps desktop-desktop just about anywhere in Internet2.
> How the heck did we get along with only a 50-kbps network?

I wasn't closely connected at the time, and my memory is dim, but I
always thought that the early long line arpanet connections were all 56
kbs.  Where does 50 kbs come from? 

Kent

-- 
Kent Crispin 
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