Cell Relay Archive

[pguillem@my-dejanews.com]

That is true, but there still exists the problem of requiring different QoS
with voice than with data.  You can have lots of jitter in data, but you can
not allow any information to be lost, where as voice is the opposite.  So this
may cause a problem even if AAL2 will allow data to be multiplexed with voice
in this way.  Could you supply a link where more info on the new AAL2 can be
found?

Thanks.

In article <72ppln$qo1$1@nnrp1.dejanews.com>,
  albert.e.manfredi@boeing.com wrote:
> There is a new AAL going through the standardization process, AAL2, which
> pretty much addresses this need. By adding overhead inside each cell, the idea
> is to allow ATM to carry multiple non-CBR voice channels in each cell.
>
> The motivator for AAL2 is to multiplex several voice conversations into each
> cell, for cellular phones and such, but I suppose it could also be used in
> other ways. Last I saw, AAL2 was moving along swiftly in the standardization
> process.
>
> Bert
> manfredi@arl.bna.boeing.com
>
> In article <72pfkt$h51$1@nnrp1.dejanews.com>,
>   pguillem@my-dejanews.com wrote:
> > To the best of my knowledge, you can not do this with ATM for the following
> > reasons. - each connection in ATM has its own VPI/VCI (Connection number).
> > If you mix two connections together, the ATM network can not distinguish the
> > two. However, if some application on top of ATM has already mixed the data
> > and has made one connection for the entire thing, it may be possible, as
long
> > as it can unmix it on the receiving end. - different traffic types will have
> > different QoS, so mixing traffic types may result in unsatisfactory QoS.
> >
> > These are just a couple of things that are off the top of my head, there may
> > be other issues as well.  Either way, it is not the ATM network that would
> > allow such a service, it would be the end applications that would do the
> > mixing and unmixing of the data.  However, you may run into problems trying
> > to guarantee QoS.
> >
> > In article <72o8i8$u51$1@debris.uits.indiana.edu>,
> >   Koh Boon Ho <koh@rndtm.net.my> wrote:
> > > Hi,
> > >   Just want to know whether can I edit or manipulate the ATM cell to fit
> > > certain data, such as edit or modify the data in a cell ? Example, certain
> > > bytes for certain data, let say, in a cell, bytes 1-30 is for voice and
> > > 31-48 is for video or others. Can I do that ? Hope to get help from any
> > > expert in the ATM network.
> > >   Thank you.
> > >
> > > Regards,
> > >    Peter Koh.
>
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