Brocade Network OS Command Reference v4.1.0 - Manual (Page 625)

Network OS Command Reference 587
53-1003115-01
qos trust cos
2
qos trust cos
Specifies the interface QoS trust Class of Service (CoS) mode for incoming traffic.
Synopsis qos trust cos
no qos trust cos
Operands None
Defaults The QoS trust mode set to the untrusted state.
Command Modes Interface subtype configuration mode
Description Use this command to specify the interface ingress QoS trust CoS mode, which controls user
priority mapping of incoming traffic. The untrusted mode overrides all incoming priority markings
with the Interface Default CoS. The CoS mode sets the user priority based on the incoming CoS
value, if the incoming packet is not priority tagged, then fallback is to the Interface Default CoS
value.
Usage Guidelines When a CEE map is applied on an interface, the qos trust cos command is not allowed. The CEE
map always puts the interface in the CoS trust mode.
Enter no qos trust cos to return to the default.
Examples To set the interface QoS to the CoS trust mode for a specific 10-gigabit Ethernet interface:
switch(config)# interface tengigabitethernet 178/0/9
switch(conf-if-te-178/0/9)# qos trust cos
To return the interface QoS to the default value or to the untrusted state:
switch(config)# interface tengigabitethernet 178/0/9
switch(conf-if-te-178/0/9)# no qos trust cos
When a CEE map is applied, the switch does not allow the qos trust cos command and displays
the following error:
switch(conf-if-te-0/1)# cee demo
switch(conf-if-te-0/1)# qos trust cos
% Error: QoS is not in non-CEE Provisioning mode
See Also interface qos cos, show qos maps