From: mani poopal (mani_ccie@yahoo.com)
Date: Wed Aug 25 2004 - 17:19:25 GMT-3
Hi Dave,
I am not sure about this config, but when you configure CIR=LLQ for all voip traffic. All voip traffic will be placed in strict priority queue, in case of congestion and if you have lots of voice traffic. Other data traffic will be denied access trough the frame link. Now for your qestion, Unless you change the Tc value(from 125ms), it the enough traffic is not sent, you can burst the traffic witin the 1 second interval(Bc=number of bits=CIR*Tc where Tc=0.125 seconds)
Mani
Dave Meyer <dave.meyer@db.com> wrote:
Hi Mani,
If I use a CIR=LLQ to for the voice( and not allowing to burst ) do I
waste the potential BW of the link ?
" The Frame Relay excess burst (Be) value is not set and therefore defaults
to 0, preventing any bursting over CIR. This is the recommended
configuration for traffic shaping when carrying VoIP "
Regards,
Dave
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Architecture & Engineering
Work: (973) 682-4435
Cell: (973)907-4963
mani poopal
08/25/2004 03:20 PM
To: Dave Meyer/NewYork/DBNA/DeuBa@DBNA, ccielab@groupstudy.com
cc:
Subject: Re: OT - Frame relay QOS
Hi Dave,
If you have enough bandwidth under CIR by using LLQ(under class based WFQ)
the bandwidth is guaranteed for VoIP traffic. You can also use ip rtp
priotiy 16384 16383 command instead of LLQ(this method is not preferred
method by cisco)
Mani
Dave Meyer wrote:
Just wanted to get some opinions on this.........
Currently have FR circuits with 0 CIR & would like to implement VOIP.
If we purchased a CIR = amount we expect to reserve for VOIP ( no
signaling) , and assigned the appropriate LLQ,
would we expect the voice traffic to be guaranteed by the CIR ?
Regards,
Dave
______________________________________________
Architecture & Engineering
Work: (973) 682-4435
Cell: (973)907-4963
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