One thing stands out in your frame relay VOIP map class and that's the frame
relay
CIR. The docs are pretty misleading but what you really want for your CIR
is 1.536M, in
other words your line spead and the min CIR is really your CIR. The way you
have it
configed your are not allowing anything above 768K.
Dave
John Neiberger wrote:
> I've been playing around with FRTS, LLQ, along with some BBQ lately and
> I'm having some issues. As soon as I apply FRTS to a router, the router
> performance goes down the tubes. Latency through the router increases
> *greatly* and I can see no reason for it. I've made these changes
> thanks to an engineer at Cisco who forwarded a document to me that
> explains how to configure all of the above for VoIP.
>
> Have any of you noticed anything like this? I know this is a really
> vague problem but I thought I'd throw it out there anyway. Here are the
> relevant portions of the config:
>
> class-map match-any voicecalls
> match ip precedence 4
> match access-group 140
> class-map match-all VoIP-Control
> match access-group name VoIP-Control
> !
> !
> policy-map voice
> class voicecalls
> priority 256
> class VoIP-Control
> bandwidth 8
> class class-default
> fair-queue
> !
> interface Serial0/0.18 point-to-point
> ip address 10.12.24.70 255.255.255.0
> frame-relay interface-dlci 18
> class VoIP
> !
> ! Four other PVCs snipped. Only 0/0.18 has the frame relay class
> VoIP attached.
> !
> map-class frame-relay VoIP
> no frame-relay adaptive-shaping
> frame-relay cir 768000
> frame-relay bc 3000
> frame-relay be 0
> frame-relay mincir 768000
> service-policy output voice
> frame-relay fragment 320
>
> When I apply "frame-relay traffic-shaping" to Serial0/0, that's when
> things get really weird. I start getting a bunch of output drops on
> that interface even though there's hardly any traffic at all going
> through. Latency increases unbelievably and becomes really variable and
> unpredictable.
>
> BTW, this is a full T-1. Any ideas?
>
> thanks,
> John (just kidding about the BBQ)
--
David Madland
CCIE# 2016
Senior Network Engineer
Qwest Communications
612-664-3367
Message Posted at:
http://www.groupstudy.com/form/read.php?f=7&i=20032&t=20018
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