Cell Relay Archive

[ays@hooked.net (Alan Y. Schaevitz)]

In article <32B00D79.41C6@icg.tu-graz.ac.at>, Herwig Rehatschek
<herwig@icg.tu-graz.ac.at> wrote:

> Hello ATM experts,
> 
> does anyone happen to know if the ATM AAL2 specification is already
> finished? 
> 
> And if yes, are there any firms offering switching HW/ adapter cards for
> this layer?

AAL2 has not been touched and probably won't be, either.  There is work in
progress for a new AAL type, currently called AAL-CU (for Cell Unit, I
believe) that is designed for low speed, time sensitive traffic such as
compressed voice/video as well as non-compressed voice and that allows
multiple connections to share the same ATM cell payload (to avoid the
wasted padding required when there is only one user's traffic in a payload
and that user doesn't want the delay inherent in waiting to fill up a
payload).  It may eventually be called AAL6 rather than AAL2.
Alan
-- 
Alan Schaevitz        There are three types of people in the world.
AYS Associates        Those who can count,
ays@hooked.net        and those who can't.