Dell PowerConnect 6024 Command Line Interface (CLI) Guide (.htm) - Page 313
trust, Policy-map Class Configuration mode
View all Dell PowerConnect 6024 manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 313 highlights
trust The trust policy-map class configuration command configures the trust state. The trust state selects the value QoS uses as the source of the internal DSCP value from the packet. To return to the default trust state, use the no form of this command. Syntax trust [cos | dscp | tcp-udp-port] no trust • cos-QoS sets the queue according to CoS to Queue Map. • dscp-QoS derives the internal DSCP value by using the DSCP value from the ingress packet. • tcp-udp-port-QoS derives the internal DSCP value by using the destination port value from the ingress packet, and the tcp-udp-port-to-DSCP-map. Default Configuration By default, the port is not trusted. If the trust keyword is alone then the default value is dscp. Command Mode Policy-map Class Configuration mode User Guidelines This command is used to distinguish the quality of service (QoS) trust behavior for certain traffic from others. For example, incoming traffic with certain DSCP values can be trusted. A class-map can be configured to match and trust the DSCP values in the incoming traffic. NOTE: Policy-maps that contain set or trust commands, or have ACL classification, cannot be attached to an egress interface by using the service-policy interface configuration command. Trust values set with this command supersede trust values set on specific interfaces with the qos trust (Interface) interface configuration command. If specifying trust cos, QoS maps a packet to a queue using the received or default port CoS value and the CoS-to-queue map. If specifying trust dscp, QoS maps the packet by using the DSCP value from the ingress packet. If specifying tcp-udp-port, QoS maps the packet to a queue by using the TCP\UDP port value from the ingress packet and the tcp-udp-port-to-queue map. QoS Commands 313