I am in desperate need of direction/assistance. In trying to achieve my aim, I keep going around in circles, not getting any closer.
I have a Catalyst 3850 with several VLAN Trunk Ports with multiple VLANs on each.
I need to apply shaping to the egress of each VLAN for two traffic classes: Voice and a single Data class
I wish to apply a guaranteed non buffered queue for the Voice and
A Shape Average queue for the data class
Each time I try a config I get the following error notification:
% Queuing actions supported only with dscp/cos/qos-group/precedence based classification!!!
I assume I am omitting a step but am lost.
Are there any step by step tutorials available that would cover setting up such a Config?
I am desperate for assistance.
I don't really "know" a 3850's QoS features, especially regarding shaping. I "know" the earlier 3750 had both an inexact port "shaping" feature, and supported egress queue "shaping", but it also supported only 4 egress queues, one of which could be configured PQ.
I believe [?] the 3850 supports 8 egress queues, of which 1 (maybe 2?) can be PQ. Don't know what, "shaping" it supports. (Its QoS features should be documented in the configuration manual and guide for your IOS version.)
What you might be able to do, is direct all your VLAN VoIP traffic to a single egress PQ and direct VLAN data traffic to up to 7 other queues, which support "shaping" per queue. (They should support relative dequeuing priorities.)
If you identify the IOS being used, version and feature set, I could look over the documentation and, possibly, assist you further.
From a quick read of the user guide, the 3850 supports 8 egress queues, two of which can be configured as PQs, shaping on egress queues (but on physical ports).
What might work, assuming you don't need more than 8 classes, is to logically (using QoS groups) classify all traffic, VoIP to be directed to your physical (trunk) port's PQ, and up to 7 VLANs into physical (trunk) port queues, each shaped as desired.
8 per physical port.