Cisco Systems 3560 Manual De Usuario

If you entered the auto qos voip trust command, the switch 
automatically sets the ingress classification to trust the CoS 
value received in the packet on a nonrouted port by using the 
mls qos trust cos command or to trust the DSCP value 
received in the packet on a routed port by using the mls qos 
trust dscp command.

Switch(config-if)# mls qos trust cos

Switch(config-if)# mls qos trust dscp

If you entered the auto qos voip cisco-phone command, the 
switch automatically enables the trusted boundary feature, 
which uses the CDP to detect the presence or absence of a 
Cisco IP Phone.

Switch(config-if)# mls qos trust device cisco-phone

If you entered the auto qos voip cisco-softphone command, 
the switch automatically creates class maps and policy maps.

Switch(config)# mls qos map policed-dscp 24 26 46 to 

Switch(config)# class-map match-all 

Switch(config-cmap)# match ip dscp ef

Switch(config)# class-map match-all 

Switch(config-cmap)# match ip dscp cs3 af31

Switch(config)# policy-map AutoQoS-Police-SoftPhone

Switch(config-pmap)# class AutoQoS-VoIP-RTP-Trust

Switch(config-pmap-c)# set dscp ef

Switch(config-pmap-c)# police 320000 8000 

Switch(config-pmap)# class 

Switch(config-pmap-c)# set dscp cs3

Switch(config-pmap-c)# police 32000 8000 

After creating the class maps and policy maps, the switch 
automatically applies the policy map called 
AutoQoS-Police-SoftPhone to an ingress interface on which 
auto-QoS with the Cisco SoftPhone feature is enabled.

Switch(config-if)# service-policy input