[cisco-voip] A simple QOS implementation for VOIP?

[Turpin, Mark]

John,

Depending on your requirements, there are a multitude of options.  I would suggest starting with the QOS SRND and take a look at the section in the end dealing with connections like Cable Modems.

http://www.cisco.com/univercd/cc/td/doc/solution/esm/qossrnd.pdf

-Mark

--

MARK TURPIN  |  Systems Engineer  |  CCIE 21649 |  Insight Networking | www.insight.com
Single Number Reach: +1-314-656-2315   f. +1-314-656-2355  mark.turpin at insight.com 
 
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-----Original Message-----
From: cisco-voip-bounces at puck.nether.net [mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of John Lange
Sent: Tuesday, June 09, 2009 3:45 PM
To: Cisco VOIP
Subject: [cisco-voip] A simple QOS implementation for VOIP?

I'm trying to create a relatively simplistic QOS implementation that
simply prioritizes all traffic to and from a voip server.

The device is a Cisco 871 connected to a typical cable modem with a
theoretical speed limit of 1 mb/s upload but measured at about .65 mb/s.

This is the config I've come up with. I've tested it and it seems to be
doing something but I'm not 100% convinced this is correct.

Is this the right methodology? And if so, is the shape average in the
correct place?

-----

class-map match-any voip1
 match access-group name host-voip1

policy-map policy-qos1
 class voip1
    priority percent 60
 class class-default
    shape average 650000

interface FastEthernet4
 service-policy output policy-qos1

ip access-list extended host-voip1
 permit ip host <voip server IP> any
 permit ip any host <voip server IP>


-- 
John Lange
http://www.johnlange.ca

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