Re: Voice Traffic

From: Adam Booth <adam.booth_at_gmail.com>
Date: Mon, 6 Sep 2010 09:11:44 +1000

Hi Karim,

Looking at the supplied configuration, since the wan interface is an
ethernet subinterface (fa0/0.99) and shaping to 5Mbps is required; I think a
parent policy map is required to shape to 5Mbps which then calls the policy
that you are describing as a child policy.

Cheers,
Adam

On Mon, Sep 6, 2010 at 9:04 AM, karim jamali <karim.jamali_at_gmail.com> wrote:

> Hi Kazi,
>
> I guess you are looking for LLQ solution and what it does is the following:
> 1.Gives priority to voice traffic by putting it inside a priority queue
> which gets serviced first.
> 2.You wouldn't want your voice traffic to kill other applications, thus you
> will need to put an upper limit to this prioritized traffic, i.e. you are
> saying I will guarantee voice is service first with an upper limit of
> 1Mbps,
> if this limit is exceeded, well it depends on how the link is doing, if it
> is fine than than you will still have it working perfectly, if the link is
> congested, you are only guaranteed up to 1Mbps of excellent service, more
> than that you will lose the guarantee.
>
> Steps:
> 1.You will need to match the traffic which I guess is the RTP (udp 16384
> 32767)
> 2. Make a class-map (which matches traffic) and point to this ACL (RTP)
> 3. Build a policy-map (what to do with the matched traffic) and assign a
> priority <value> the value is the upper limit.
> 4.Apply the policy to the WAN interface and you are good to go.
>
> Use the command show policy-map interface <name> to check that there are
> packet matches and that policy is working as expected.
>
> HTH,
>
> Regards,
>
> Regards,
>
> On Sun, Sep 5, 2010 at 2:08 PM, Kazi Junaid <junaidkazi76_at_gmail.com>
> wrote:
>
> > Hi
> >
> > I am connecting 10 branch offices over MPLS cloud from service provider.
> We
> > plan to run Voice over the MPLS Link.
> > HeadOffice got 5MB link, how do I prioritize voice traffic and reserve
> > bandwidth for voice when there is link congestion. If there is no voice
> > traffic then all available bandwidth to be use by Data.
> >
> > Here is my HQ MPLS Router config
> >
> > int f 0/0.99
> > desc connected to MPLS_Cloud
> > encapsulation dot1Q 99
> > ip address 172.30.10.198 255.255.255.252
> >
> > int fa 0/1
> > desc connected to Core
> > ip address 10.1.150.2 255.255.255.252
> >
> > router ospf 1
> > network 10.1.150.0 0.0.0.3 area 0
> >
> > router bgp 69025
> > no synchronization
> > bgp log-neighbor-changes
> > redistribute ospf 1
> > neighbor 172.30.10.197 remote-as 69000
> > no auto-summary
> >
> >
> >
> > thanks
> > JK
> >
> >
> > Blogs and organic groups at http://www.ccie.net
> >
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> >
> >
> >
> >
> >
>
>
> --
> KJ
>
>
> Blogs and organic groups at http://www.ccie.net
>
> _______________________________________________________________________
> Subscription information may be found at:
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Received on Mon Sep 06 2010 - 09:11:44 ART

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