In a few cases, such as 001010 and 001100, a default DSCP policy (implied by the DSCP standards for Assured-Forwarding and Expedited-Forwarding) is used. You can change the priorities for the default policies by using the qos dscp-map
command.codepoint
priority
0 - 7
The currently configured DSCP policies (codepoint and associated 802.1p priority) are not enabled until you configure a global or classifier-based QoS policy to mark matching packets or configure a global IP-Diffserv classifier.
The default DSCP policy table displays the switch's default codepoint-priority assignments. If you change the priority of any codepoint to a non-default value and then enter the write memory
command, the switch will list the non-default setting in the show config
display.
The default configuration has the following DSCP-priority settings:
Codepoint | Default Priority |
---|---|
001100 | 1 |
001101 | No-override |
001110 | 2 |
If you reconfigure these three codepoints to a priority of 3 and then enter the write memory
command, the switch displays the changes in the show config
listing: