To Group:

I am working with a client who is having problems with Video Conference 
using Polycom Equipment. The problem is jitter and audio drops. 

The solution that has been suggested to us by Cisco Low Latency Queueing
(LLQ)
over Frame Relay. 

I'm not sure the release but I was told this is a new feature for Frame
Relay.
We were instructed to upgrade to 12.2.6a IP Plus Feature Set...

We did this..

This particular client has one DLCI on the physical interface, the port
speed of the interface
is 768kb. This is the same for both sites that have the video equipment. 

Here's the configuration I put together.


access-list 101 permit tcp any any range 3230 3231
access-list 101 permit udp any any range 3230 3235


class-map match-all video
match access-group 101


Policy-map video-police
class video
priority 540
class class-default
fair-queue 64


map-class frame-relay video-data
no frame-relay adaptive-shaping
frame-relay cir 768000
frame-relay bc 7680
frame-relay be 0
service-policy out video-police
frame-relay fragment 1280

****Applied to these two commands to physical interface.

frame-relay traffic-shaping
frame-relay class video-data

Here's the error we are getting.

I/f Serial0/0 DLCI 400 class video requested bandwidth 540 (kbps)
Not Available
Removing service policy from map-class

We even tried this on a router not connected to the network at all. When you
do a show 
run after the error the service-policy statement is removed from the
map-class configuration.

Does anyone have experience with LLQ or have any suggestions.

Stephen Manuel




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