Cell Relay Archive

["Rhodes" <jeffrey.rhodes@worldnet.att.net>]

albert.e.manfredi@boeing.com wrote in message
<7g5aj6$i92$1@nnrp1.dejanews.com>...
>In article <7g57hh$fcb$1@nnrp1.dejanews.com>,
>  jcrhodes <jeffrey.rhodes@attws.com> wrote:
>
>> No, the original note (mine) claims that a voice call on the sync network
will
>> "sound" better when its control channel is in meltdown, I do not believe
that
>> async networks will be able to establish such a track record for voice
calls,
>> let alone "sound" OK when the control traffic is interfering with the
DATA
>> traffic. IOW, I make the case that async networks will ALWAYS be
dependent on
>> sync networks for "real time" communications, whenever the async networks
get
>> into trouble from "data storms".  ;-)
>
>I know a lot of people that will argue this point, though. They will argue
>that when sync networks stop working because they are overloaded (i.e. they
>accept no more calls), the async nets will instead continue to function,
even
>if at a much lower rate for the users.

OK, I accept the fact that people will argue about this. I have worked with
the existing PSTN/ISDN of synchronous circuits controlled by common channel
signaling for sixteen years and I say the track records indicate just the
opposite of what you claim: the sync network will maintain service longer
than async nets, is better suited for storms of service requests and ALWAYS
"sounds" good to facilitate human conversation, not to mention analog modems
trying to disguise low bandwidth data ...

>It cuts both ways. An overloaded sync net will continue to provide good
>service only for those who already have a connection. An async net will
>instead "more democratically" degrade for everyone as usage becomes
>excessive.

You have established an important point for the async network managers to
consider: they'll need an existing sync network connection BEFORE the
earthquake or volcano explodes ;-)

>--
>Bert
>manfredi@arl.bna.boeing.com
>
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