Modify QoS Trust Settings Window
This window is only available for Catalyst 2950 and Catalyst 3550 switches.
It appears when you select one or more interfaces and click Modify in
the QoS Trust Settings window. Use it to change the specifications about the
marker
CoS,
DSCP, or IP precedence
you
trust in the incoming packets.
Follow these steps:
- To change the marker you trust, select a different marker from the Trust
State list, or select Not Trusted to specify no trust setting.
You can perform this step with a Catalyst 2950 switch only if it runs the
enhanced software image.
- If you selected Trust CoS, you can choose a default CoS value for
the CoS Default field. This value is used when an incoming packet has
no CoS value. Check the CoS Override box if you want the default to
replace all CoS values in incoming packets.
You can perform this step with all Catalyst 2950 switches.
- If you selected Trust DSCP and you want to map incoming DSCP values
to a different set of DSCP values, select a mutation table from the DSCP
Mutation Table list. Select Default if you do not want to change
incoming DSCP values.
You define the mutation tables in the list in the QoS
Maps window.
- When you finish with the window, click OK. You return to the QoS
Trust Settings window.