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Configuring Quality of Service 447
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
The following is an example of the CLI commands:
console(config)# qos trust dscp
console(config)# qos dscp-mutation
Table 10-9. Basic QoS Settings CLI Commands
CLI Command Description
qos trust cos | dscp |
tcp-udp-port
In the global context, this command is
used to configure the system to basic
mode and the trust state.
qos trust In the interface configuration context,
this command is used to enable each port
trust state.
qos dscp-mutation Applies the DSCP mutation map to a
system DSCP trusted port (always
rewrites DSCP on this port).