Cisco Catalyst 3120 Software Manual page 738

Catalyst blade switch for hp

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Table of Contents

Configuring Auto-QoS

When you enable auto-QoS by using the auto qos voip cisco-phone, the auto qos voip cisco-softphone,

or the auto qos voip trust interface configuration command, the switch automatically generates a QoS

configuration based on the traffic type and ingress packet label and applies the commands listed in

Generated Auto-QoS Configuration

The switch automatically enables standard QoS and configures

the CoS-to-DSCP map (maps CoS values in incoming packets

to a DSCP value).

The switch automatically maps CoS values to an ingress queue

and to a threshold ID.

The switch automatically maps CoS values to an egress queue

and to a threshold ID.

Cisco Catalyst Blade Switch 3120 for HP Software Configuration Guide

If the packet does not have a DSCP value of 24, 26, or 46 or is out of profile, the switch changes the

DSCP value to 0. The switch configures ingress and egress queues on the port according to the

When you enter the auto qos voip trust interface configuration command on a port connected to the

interior of the network, the switch trusts the CoS value for nonrouted ports or the DSCP value for

routed ports in ingress packets (the assumption is that traffic has already been classified by other

edge devices). The switch configures the ingress and egress queues on the port according to the

For information about the trusted boundary feature, see the

Ensure Port Security" section on page

to the port.

Automatically Generated Command

Switch(config)# mls qos

Switch(config)# mls qos map cos-dscp 0 8 16 26 32 46

Switch(config)# no mls qos srr-queue input cos-map