Disabling Dscp Rewrite; Enabling Port-Based Or Vlan-Based Qos - Cisco WS-C6506 Software Manual

Configuring QoS on the Switch
This example shows how to enable DSCP rewrite:
Console> (enable) set qos dscp-rewrite enable
DSCP rewrite has been globally enabled.
Console> (enable)

Disabling DSCP Rewrite

Only PFC3 supports the configuration commands in this section.
Note
To disable DSCP rewrite, which uses the received DSCP value as the egress DSCP value, perform this
task in privileged mode:
Task
Disable DSCP rewrite on the switch.
This example shows how to disable DSCP rewrite:
Console> (enable) set qos dscp-rewrite disable
DSCP rewrite has been globally disabled.
Console> (enable)

Enabling Port-Based or VLAN-Based QoS

Supervisor Engine 1 with a Layer 2 Switching Engine does not support the commands in this section.
Note
By default, QoS uses the ACLs that are attached to the ports. On a per-port basis, you can configure QoS
to use the ACLs that are attached to a VLAN. To enable VLAN-based QoS on a port, perform this task
in privileged mode:
Task
Step 1 Enable VLAN-based QoS on a port.
Step 2 Verify the configuration.
For more information, see the
This example shows how to enable the VLAN-based QoS on a port:
Console> (enable) set port qos 1/1-2 vlan-based
Hardware programming in progress...
QoS interface is set to vlan-based for ports 1/1-2.
Console> (enable)
Changing a port from port-based to VLAN-based QoS detaches all ACLs from the port. Any ACLs that
are attached to the VLAN apply to the port immediately (for more information, see the
ACL to an Interface" section on page
Catalyst 6500 Series Switch Software Configuration Guide—Release 8.7
52-40
Command
set qos dscp-rewrite disable
Command
set port qos mod/port {port-based | vlan-based}
show port qos mod/port
"Attaching ACLs" section on page
52-56).
Chapter 52 Configuring QoS
52-26.
"Attaching an
OL-8978-04