Re: ip precedence under VoIP peer

From: pbubienczyk@szczesliwice.pl
Date: Fri Aug 06 2004 - 04:36:35 GMT-3


Bob

   I think that ip precedence sets ToS bits in IP packet for all VoIP
communication, as stated in DQOS book:
   " Prior to IOS Releases 12.2(2)XB and 12.2(2)T the ip precedence command was
used to mark all VoIP traffic with an IP precedence value. After these IOS
releases, you can use the ip qos dscp command to separate and individually mark
the voice signaling and voice payload traffic. "

   And command reference (12.2) not states precisely that it is used only for
voice payload and not for signaling. (they are talking about voip data packets).

rgds - pb

Quoting Bob Sinclair <bsin@cox.net>:

> Jongsoo,
>
> A close reading of the command reference seems to indicate that the ip
> precedence command sets precedence only for voice data, as opposed to voice
> control/signalling.
>
> BTW: This command has been replaced in 12.2T with the command -ip qos
> dscp- This command specifically breaks down marking for -media-
> and -signallng-.
>
> Also note that in later versions of 12.2T voice data is marked dscp EF and
> voice sigalling is marked AF31 by default.
>
> HTH,
>
> Bob Sinclair
> CCIE #10427, CISSP, MCSE
> www.netmasterclass.net
>
>
> ----- Original Message -----
> From: <jongsoo.kim@intelsat.com>
> To: <ccielab@groupstudy.com>
> Sent: Thursday, August 05, 2004 7:03 PM
> Subject: ip precedence under VoIP peer
>
>
> > Just make sure
> >
> > If I set ip precedence 5 under dial-peer VoIP and let's say VoIP
> connection is established,
> > then does this command make IP precedence of voice traffic and control to
> set as 5 or just voice traffic( I think this is right)?
> >
> > Also, precedence bit of both direction will be set to 5( I think this is
> right)? or only one direction?
> >
> > Thnaks folks
> >
> > Jongsoo
> >
> > _______________________________________________________________________
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