[c-nsp] QoS for VoIP to specific proxy

[Church, Charles]

Nick,

	You can use a class-map to match that traffic using an
access-list.  If you really want to be specific, you can do a match-all,
and match it to 'protocol' as well.  Then define a policy-map that
prioritizes that class to a certain speed.  Then attach the output
policy to the interface.  I think you can only apply a priority policy
to a physical interface, versus a subint or a virtual one.  You can't
enforce prioritization towards you.  It's up to the other providers.  If
they're respecting IP PREC or DSCP, you're probably all set.  Otherwise,
you can control it a bit with input policies to limit non-VoIP traffic
(using shaping), but it's far from an exact science. 

Chuck 

-----Original Message-----
From: cisco-nsp-bounces at puck.nether.net
[mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Nick Voth
Sent: Monday, July 21, 2008 4:09 PM
To: cisco-nsp at puck.nether.net
Subject: [c-nsp] QoS for VoIP to specific proxy


Hello folks,

Please pardon me asking what I'm sure has been answered before. I've
looked
through the archives and the Cisco site, but I'm still confused about
what I
need to do.

I have a client who's Cisco 1841 CPE router needs to simply prioritize
SIP
traffic to and from a specific VoIP proxy.

Let's say the VoIP proxy is 209.120.xxx.xxx

The customer's current config on their 1841 is below. Can someone give
me an
idea of how I can accomplish this? Remember, I just basically need
priority
queuing of any traffic to and from that VoIP proxy listed above

Thanks very much for any help!

-Nick Voth

---------Customer's CPE config------------>>>>
interface FastEthernet0/0
 ip address 67.101.xxx.xxx 255.255.255.248
 duplex auto
 speed auto
 no keepalive
!
!
interface Serial0/0/0
 no ip address
 encapsulation frame-relay IETF
 no ip mroute-cache
 service-module t1 timeslots 1-24
 service-module t1 fdl both
 frame-relay lmi-type ansi
!
interface Serial0/0/0.1 point-to-point
 frame-relay interface-dlci 16 ppp Virtual-Template1
!
interface Virtual-Template1
 ip address negotiated
 ppp chap hostname xxxxx
 ppp chap password 7 01465656080E535773
 ppp ipcp dns request
 ppp ipcp route default
 ppp ipcp address accept
----------


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