I´ve an escenario with some cisco access switches and cisco router that support connectivity for IP telephony. But the PBX is Nortel. Suppose i am trying to manage voice and signaling traffic with the recommended values (CoS5 and CoS3), and that i´m changing DSCP values on access port so i can use DSCP 24 for signaling and DSCP 46 for voice (not trusting DSCP but remarking with a policy MAP). Then on switches i´ve the following congestion managemente config:
But with this config, the PBX is generating a lot of QoS error logs related to delay and jitter. Because of this i want to change how Signaling (DSCP 24 - CoS 3) will be managed by switches. Could i use this config instead?
Ok. Let me proccess this to see if I understand it!
You´re telling me to manage priority for signaling only in the input priority queue (2) (does it matter if i put cos 3 in queue 2 for output?) while voice will be manage here an also y in the ouput priority queue (1)???? So the hole thing could look like this?
no auto qos voip trust queue-set 1 srr-queue bandwidth share 1 70 25 5 srr-queue bandwidth shape 3 0 0 0 service-policy input QoS-SW3560 priority-queue out
Now, taking into consideration other comments you have done, what will take precedence for this interface configuration? the queue-set 1 or the priority queue out? should i remove one? and, This whole config looks ok to you?
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