Quality of Service
QoS Basic Mode
430 Cisco 350, 350X and 550X Series Managed Switches, Firmware Release 2.4, ver 0.4
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enabled, the device uses the new DSCP values for egress queuing. It also replaces the original
DSCP values in the packets with the new DSCP values.
NOTE The frame is mapped to an egress queue using the new, rewritten value, and not
by the original DSCP value.
STEP 4 If Override Ingress DSCP was enabled, click DSCP Override Table to reconfigure DSCP.
(See DSCP Override Table).
STEP 5 DSCP In displays the DSCP value of the incoming packet that needs to be re-marked to an
alternative value. Select the DSCP Out value to indicate the outgoing value is mapped.
STEP 6 Click Apply. The Running Configuration file is updated with the new DSCP values.
Interface Settings
The Interface Settings page enables configuring QoS on each port of the device, as follows:
• QoS State Disabled on an Interface—All inbound traffic on the port is mapped to the
best effort queue and no classification/prioritization takes place.
• QoS State of the Port is Enabled—Port prioritize traffic on ingress is based on the
system wide configured trusted mode, which is either CoS/802.1p trusted mode or
DSCP trusted mode.
To enter QoS settings per interface:
STEP 1 Click Quality of Service > QoS Basic Mode > Interface Settings.
STEP 2 Select Port or LAG to display the list of ports or LAGs.
QoS State displays whether QoS is enabled on the interface.
STEP 3 Select an interface, and click Edit.
STEP 4 Select the Port or LAG interface.
STEP 5 Click to enable or disable QoS State for this interface.
STEP 6 Click Apply. The Running Configuration file is updated.
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