I have a 3560 layer 3 switch that has polycom voip phones and workstations connected to it
The network is partitioned into vlans but the polycom voip phones and workstations reside on the same vlan
I would like to implement QoS on an interface basis and give the voice packet priority
For the time being we do not have any plans to create a voice vlan just for the phones since we do not have a lot of voip phones but the requirement for QoS is very urgent.
I'm looking for a basic QoS setup that will give the voice traffic priority
I have just globally enabled mls qos on the switch and looked at some interface configuration options but I'm not sure which one to use with respect to the most common settings when using non Cisco gear and I'm not sure if I need to configure any outgoing queues or if the default queue is fine.
I'm looking for a basic configuration example on interface g0/10 one vlan both voip and desktop connect to g0/10 voip device is non-cisco
A link on QoS would also be helpful to reinforce the example provided and education on other types of examples
Be aware that enabling QoS on a 3560/3750 sets up four egress queues per interface, each of which gets 25% of the scheduler. Queue One is also by default shaped to 25% and by default CoS-5 & DSCP 46 Map to this queue (usually what RTP frames are marked with). This is usually fine on a single VoIP call (i.e. attached to an IP Phone) but if it's a link that aggregates multiple VoIP calls it may cause problems. I am not sure if the latest code enables the strict-priority queue with Auto-QoS, but it didn't when I last looked at it. Personally I wouldn't use Auto-QoS, however it's your choice.
I suggest you have a read of the QoS SRND as this has example configs you can use as a base for most switch types:
When you enable QoS globally queueing is enabled on all interfaces, this is not configurable on a per-interface basis. You can enable the 'trust' state per-interface, however the egress queueing is derived from the QoS value (CoS or DSCP) of the frame to be transmitted.
We are pleased to announce availability of Beta software for 16.6.3. 16.6.3 will be the second rebuild on the 16.6 release train targeted towards Catalyst 9500/9400/9300/3850/3650 switching platforms. We are looking for early feedback from custome...