[c-nsp] QoS for VoIP to specific proxy

[Nick Voth]

Thanks very much Charles. I'll use this as a template.

-Nick


> From: "Church, Charles" <cchurc05 at harris.com>
> Date: Mon, 21 Jul 2008 16:15:06 -0500
> To: Nick Voth <nvoth at estreet.com>, <cisco-nsp at puck.nether.net>
> Conversation: [c-nsp] QoS for VoIP to specific proxy
> Subject: RE: [c-nsp] QoS for VoIP to specific proxy
> 
> 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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