I'm new ro QOS, and is implementing a IP telephony solution for a customer. We have got a Catalyst 4510, where the phones are connected, and then the PC's are connected to the phones.
I have configured the "auto qos voip ciscophone" on the interfaces connected to the Cisco phones (7941's). However, we are experiencing a big performance descrease on the PC's (about 1/2 or 1/3 the performance or so), when the "auto qos voip ciscophone" is configured on the interfaces. When I remove the auto qos from the interfaces, everything works at normal speed.
Is it a bad idea to configure the "auto qos voip ciscophone" on the interfaces, when the PC's are connected to the phones?