[cisco-voip] DSCP

[Voll, Scott]

At least it wasn't just me.  

 

Thanks

 

Scott

 

PS.  Back to QoS

 

________________________________

From: Philip Walenta [mailto:pwalenta at wi.rr.com] 
Sent: Monday, October 31, 2005 11:14 AM
To: Voll, Scott; 'Wes Sisk'
Cc: 'ci >> "cisco-voip at puck-nether.net"'
Subject: RE: [cisco-voip] DSCP

 

Scott, 

 

CS3 != IP Prec 3 when it comes to ACL's.  In your policy map, you can do
a match dscp c3 in addition to match ip prec 3.  For the time being, I'd
keep both until all the Cisco products default to CS3.

 

This specification cam out late last year I believe, and was written
into the Cisco SRND that came out this past summer.  There was no
announcment, I caught it when I did a CM 4.1 install and noticed the
DSCP value of CS3.  When I inquired about it, I got the answer I just
gave you and an apology for not making it more publicly known.

 

Hope this helps.


Phil

	 

	
________________________________


	From: cisco-voip-bounces at puck.nether.net
[mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Voll, Scott
	Sent: Monday, October 31, 2005 10:59 AM
	To: Wes Sisk
	Cc: ci >> "cisco-voip at puck-nether.net"
	Subject: RE: [cisco-voip] DSCP

	So if my ACL specifies IP Precedence 3 will it match CS3?

	 

	And do you have a time frame in which this changed?  Was
something announced so the little people like me would know this?

	 

	Thanks

	 

	Scott

	 

	
________________________________


	From: Wes Sisk [mailto:wsisk at cisco.com] 
	Sent: Sunday, October 30, 2005 2:14 PM
	To: Voll, Scott
	Cc: ci >> "cisco-voip at puck-nether.net"
	Subject: Re: [cisco-voip] DSCP

	 

	it changed after some ITU folks changed their minds.  CS3 is the
new ordained marking.  LLQ matches whatever you specify in your ACL.
	
	/Wes
	
	Voll, Scott wrote: 

	What DSCP does CM 4.1.3 use for VoIP and Control on 7940/60 with
firmware 7.2?

	 

	I thought it was EF for Voice and AF31 for Control but in the
setting --> network settings --> 53 DSCP for Call Control is CS3.

	 

	I understand CS3 is Precedence 3 but does LLQing see it as the
same?

	 

	Thanks

	 

	Scott

	 
	 
	 
	
	
	
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