RE: Dumb question - what do the codec command do on dial peer

From: Hunt Lee (Hunt.Lee@telecom.co.nz)
Date: Wed Aug 04 2004 - 22:14:50 GMT-3

Okay. Thanks for your explanation.

But if the command increases both 'bandwidth' & 'delay', what's the
point of the IOS command?

I'm sure if it is a lose-lose situation, nobody will ever want to use
that command, right?

Thanks,
L.

-----Original Message-----
From: Edwards, Andrew M [mailto:andrew.m.edwards@boeing.com]
Sent: Thursday, 5 August 2004 12:20 p.m.
To: Hunt Lee; Joe Rinehart
Cc: ccielab@groupstudy.com
Subject: RE: Dumb question - what do the codec command do on dial peer
actually represent?

The default BW for G.729ar8 is 8 kbits per second.

The default byte count per sample for 729ar8 I believe is 30 bytes

The larger the number of bytes encoded per sample will translate into
larger delays between packets (e.g. longer to process)
  
I am sure there is more too it, but that's the general idea (at least
that's how I understand it). The deeper understanding is how the
encoded sample size has an effect on setting up traffic shaping on a WAN
such that you do not starve out voice packets because of the added delay
of encoding more bytes per sample.

andy

-----Original Message-----
From: Hunt Lee [mailto:Hunt.Lee@telecom.co.nz]
Sent: Wednesday, August 04, 2004 2:38 PM
To: Joe Rinehart
Cc: ccielab@groupstudy.com
Subject: RE: Dumb question - what do the codec command do on dial peer
actually represent?

Hi Joe,

Thanks for your reply.

But my question is say since the default bandwidth for G.729 is 8bytes,
now I have increase the bandwidth per call to 10bytes.

By increasing to 10bytes, does it increase the delay or decrease the
delay per call?

Thanks,
L.

-----Original Message-----
From: Joe Rinehart [mailto:jjrinehart@hotmail.com]
Sent: Thursday, 5 August 2004 9:36 a.m.
To: Hunt Lee
Subject: Re: Dumb question - what do the codec command do on dial peer
actually represent?

chooses the dial peer codec and the packet size
----- Original Message -----
From: "Hunt Lee" <Hunt.Lee@telecom.co.nz>
To: <ccielab@groupstudy.com>
Sent: Wednesday, August 04, 2004 2:26 PM
Subject: Dumb question - what do the codec command do on dial peer
actually represent?

> Hi guys,
>
>
>
> What does this command do?
>
>
>
> 'codec g729ar8 bytes 10'
>
>
>
> I look it up on CCO and any books I can find, yet I still don't quite
> understand what it achieve.
>
>
>
> Greatly appreciated if anyone can shed some light on this.
>
>
>
> Cheers,
>
> L.
>
>
>
>
>
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