ATM Wide-Area Networks (was: sell shell accounts?)
smd at chops.icp.net
Wed Jul 24 00:29:44 UTC 1996
| At a certain point, some of these arguments about ATM efficiency sound a bit
| like saying FDDI is terrible because 4B/5B encoding is
| only 80% efficient.
But FDDI has a *great* admission-control scheme.
However, I almost concede your point. :) [*]
| I think a more interesting measure of the value of ATM
| versus other wide-area technologies is some sort of
| measure of throughput per dollar.
P.S.: [*] almost, because in an application where one is
using ATM as a single point-to-point PVC along a
long-haul trunk that is to be used essentially exclusively
for IP traffic, the cell tax seems really excessive.
Given the movement towards cisco's packet-over-SONET,
should that work and should others implement similar and
preferably interoperable point-to-point interfaces, I will
have to withdraw my almost-concession, except in cases
where people _really_ want to do point-to-multipoint stuff.
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