Dell PowerConnect 6024 User's Guide (.htm) - Page 437
Setting the Trust Mode, Disabling Trust Mode for Interfaces:
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TCP/UDP Port - Sets trust mode to TCP/UDP Port on the device. The TCP/UDP Port mapping determines the packet queue. Always Rewrite DSCP - Rewrites the packet DSCP tag according to the QoS DSCP Rewriting configuration. Always Rewrite DSCP can only be checked if the Trust Mode is DSCP. Disable Trust Mode on Interface - Disables the trust mode for the select port or LAG. Interface - Port or LAG on which trust mode is disabled. Setting the Trust Mode 1 Open the Basic QoS Settings page. 2 Select a Trust Mode. 3 If the Trust Mode is DSCP, check Always Rewrite DSCP so that the DSCP tags are rewritten as mapped. 4 Click Apply Changes. The Trust Mode is selected, and the device is updated. Disabling Trust Mode for Interfaces: 1 Open the Basic QoS Settings page. 2 Click Show All to display the Basic QoS Settings Table page. 3 Check Disable Trust Mode for all interfaces on which Trust Mode should be disabled. 4 Click Apply Changes. Defining Basic QoS Settings Using the CLI Commands Table 10-9. Basic QoS Settings CLI Commands CLI Command qos trust cos | dscp | tcp-udp-port qos trust qos dscp-mutation Description In the global context, this command is used to configure the system to basic mode and the trust state. In the interface configuration context, this command is used to enable each port trust state. Applies the DSCP mutation map to a system DSCP trusted port (always rewrites DSCP on this port). The following is an example of the CLI commands: console(config)# qos trust dscp console(config)# qos dscp-mutation Configuring Quality of Service 447
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