Cell Relay Archive

["Albert Manfredi" <albert.e.manfredi@boeing.com>]

"anouch" <anouch_atm@yahoo.com> wrote:

> This will work as long as the de-jitter buffer at the far end is
big
> enough to absorb the jitter and this may be true almost in all
cases
> provided that the number of switches passed through is limited.
> Because a regular traffic entering a network becomes bursty at the
> egress and the more switches in the path, the more bursty will be
the
> traffic at the exit without correcting irregularities at each
node.
> I believe the "deterministic" way to bound the end-to-end jitter
is to
> "control" it at each node and not just to "accomodate" with it.

I think I agree here. In part also because if the supposedly CBR
traffic becomes very bursty in the core network, through no fault of
the source device, it might be policed out of existence. I suppose
this would depend on where the traffic is being policed. No? This
discussion happened some time ago in the diffserv wg of the IETF.

Bert
albert.e.manfredi@boeing.com