Configuring The Cos Value For A Port - Cisco WS-X6066-SLB-APC - Content Switching Module Software Manual

Chapter 41 Configuring QoS
This example shows how to configure port 1/1 with the trust-cos keyword:
Console> (enable) set port qos 1/1 trust trust-cos
Port 1/1 qos set to trust-cos
Console> (enable)
Only ISL or 802.1Q frames carry CoS values. Configure ports with the trust-cos keyword only when
Note
the received traffic is ISL or 802.1Q frames carrying CoS values that you know to be consistent with
network policy or to trust a configured port CoS value.

Configuring the CoS Value for a Port

Whether or not QoS uses the CoS value applied with the
Note
trust state of the port and the trust state of the traffic received through the port. The
command does not configure the trust state of the port or the trust state of the traffic received through
the port. To use the CoS value applied with the
that matches the ingress traffic; or for a port that receives no tagged traffic, configure the port to trust
CoS.
Unmarked frames from ports configured as trusted and all frames from ports configured as untrusted are
assigned the CoS value specified with this command.
To configure the CoS value for a port, perform this task in privileged mode:
Task
Step 1
Configure the CoS value for a port.
Step 2 Verify the configuration.
This example shows how to configure the port CoS value to 3 for port 1/1:
Console> (enable) set port qos 1/1 cos 3
Port 1/1 qos cos set to 3
Console> (enable)
To revert to the default CoS value for a port, perform this task in privileged mode:
Task
Step 1
Revert to the default CoS value for a port.
Step 2 Verify the configuration.
This example shows how to revert to the default CoS value for port 1/1:
Console> (enable) clear port qos 1/1 cos
Port 1/1 qos cos setting cleared.
Console> (enable)
78-13315-02
set port qos ... cos
set port qos ... cos
Command
set port qos cos cos-value
show port qos
Command
clear port qos cos
show port qos
Catalyst 6000 Family Software Configuration Guide—Releases 6.3 and 6.4
Configuring QoS
command depends on the
set port qos ... cos
command, configure a trust-CoS ACL
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