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Cisco Catalyst Blade Switch 3020 for HP Software Configuration Guide
OL-8915-03
Chapter 32 Configuring QoS
Configuring Auto-QoS
To display the QoS commands that are automatically generated when auto-QoS is enabled or disabled,
enter the
debug auto qos
privileged EXEC command
before
enabling auto-QoS. For more information,
see the
debug autoqos
command in the command reference
or this release.
To disable auto-QoS on a port, use the
no auto qos voip
interface configuration command. Only the
auto-QoS-generated interface configuration commands for this port are removed. If this is the last port
on which auto-QoS is enabled and you enter the
no auto qos voip
command, auto-QoS is considered
disabled even though the auto-QoS-generated global configuration commands remain (to avoid
disrupting traffic on other ports affected by the global configuration).
You can use the
no mls qos
global configuration command to disable the auto-QoS-generated global
configuration commands. With QoS disabled, there is no concept of trusted or untrusted ports because
the packets are not modified (the CoS, DSCP, and IP precedence values in the packet are not changed).
Traffic is switched in pass-through mode (packets are switched without any rewrites and classified as
best effort without any policing).
This example shows how to enable auto-QoS and to trust the QoS labels received in incoming packets
when the switch or router connected to a port is a trusted device:
Switch(config)#
interface gigabitethernet0/1
Switch(config-if)#
auto qos voip trust
Step 4
end
Return to privileged EXEC mode.
Step 5
show auto qos interface
interface-id
Verify your entries.
This command displays the auto-QoS command on the interface on
which auto-QoS was enabled. You can use the
show running-config
privileged EXEC command to display the auto-QoS configuration
and the user modifications.
Command
Purpose
