Re: Rumors about the death of the ARPANET


CERF@A.ISI.EDU
20 Mar 1988 22:28-EST


Frank,

DS-3 is a reality for many people who either mux it down to manageable
bandwidth channels or build special interfaces that can push/pull data
at 45 Mbit/sec.

About your earlier messages concerning trusting local I/O and not doing
checksums end to end (by implication) - we have tried that in the past and
been burned - what is different today? Fiber? The problem is that the end
to end channel may still contain some weakness in terms of S/N and bit
error rate. I'd rather see silicon checksums to speed them up than doing
away with them because they take time...

Vint



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