[cisco-voip] RE: RE: [c-nsp] Voice preference !!!

[Walenta, Phil]

Actually, if you're using 12.3 code, Media is automatically set to DSCP
ef, and control is set to af31.
 
See the following config snippet I use for most of my voice installs:
 
! The ### should be replaced with suitable numbers for the bandwidth

! available at the site

!

class-map match-all VOICE

 match ip dscp ef

!

class-map match-all VOICE-CONTROL

 match ip dscp af31

!

!

policy-map WAN-EDGE

 class VOICE

  priority ### 

 class VOICE-CONTROL

  bandwidth ###

class class-default

  fair-queue

  random-detect dscp-based

!

!

! Once these maps are built, they must be applied to the outbound

! side of the serial/ATM interface

!

interface ATM3/0.60 point-to-point

 ip address 10.200.60.1 255.255.255.252

 pvc PVCNAME 0/60

  service-policy output WAN-EDGE

!

! Each VoIP Dial peer must have the following two statements executed

! to ensure proper packet marking for QoS.  These are the defaults for
12.3.11T.

!

dial-peer voice 4100 voip

 ip qos dscp af31 signaling

 ip qos dscp ef media

!

! MGCP should have the following two commands executed to ensure

! proper packet marking for QoS.  These are the defaults for 12.3.11T.

!

mgcp ip qos dscp af31 signaling 

mgcp ip qos dscp ef media


________________________________

From: cisco-voip-bounces at puck.nether.net
[mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Voll, Scott
Sent: Monday, May 09, 2005 10:11 AM
To: Gangasagar Amula
Cc: cisco-voip at puck.nether.net
Subject: [cisco-voip] RE: RE: [c-nsp] Voice preference !!!



What VGW are you using and what protocol?

 

MGCP, H323, Sip, etc 

 

Scott

 

________________________________

From: Gangasagar Amula [mailto:sagar_cisco at rediffmail.com] 
Sent: Saturday, May 07, 2005 1:24 AM
To: Voll, Scott
Cc: cisco-nsp at puck.nether.net
Subject: Re: RE: [c-nsp] Voice preference !!!

 


We are using FXS / E&M.....
Do they give ip precedence automactically.... 





On Fri, 06 May 2005 Voll,Scott wrote :
>Kind of personal preference.  What are you using for Voice? Ie CM or
PBX  Does it automagically set a dscp or IP precedence?  Then use it,
other wise your choice.
>
>Scott
>
>
>-----Original Message-----
> From: cisco-nsp-bounces at puck.nether.net
[mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Gangasagar Amula
>Sent: Thursday, May 05, 2005 11:42 PM
>To: cisco-nsp at puck.nether.net
>Subject: [c-nsp] Voice preference !!!
>
>
>Dear All,
>
>I want to give more preference to voice packets more than data
packets....
>
>Our links max b.w. is 64 kbps....
>
>how to go ahead.....
>
>shld we use....
>"ip precedence 5 "
>or
>" ip qos dscp cs5 media "
>
>Which is better ?
>
>
>Regards,
>Sagar.
>_______________________________________________
>cisco-nsp mailing list  cisco-nsp at puck.nether.net
>https://puck.nether.net/mailman/listinfo/cisco-nsp
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