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QoS Commands
qos trust (Interface)
SPS208G/SPS224G4/SPS2024 Command Line Interface Reference Guide 299
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Command Mode
Global Configuration mode
User Guidelines
Packets entering a quality of service (QoS) domain are classified at the edge of
the QoS domain. When packets are classified at the edge, the switch port within
the QoS domain can be configured to one of the trusted states because there is no
need to classify the packets at every device in the domain.
A switch port on an inter-QoS domain boundary can be configured to the DSCP
trust state, and, if the DSCP values are different between the QoS domains, the
DSCP to DSCP mutation map can be applied.
Use this command to specify whether the port is trusted and which fields of the
packet to use to classify traffic.
When the system is configured as trust DSCP, traffic is mapped to a queue
according to the DSCP-queue map.
Example
The following example configures the system to the DSCP trust state.
Console(config)# qos trust dscp
qos trust (Interface)
The qos trust Interface Configuration (Ethernet, port-channel) mode command
enables each port trust state while the system is in the basic QoS mode. Use the
no form of this command to disable the trust state on each port.
Syntax
qos trust
no qos trust