33-23
Catalyst 2975 Switch Software Configuration Guide
OL-19720-02
Chapter 33 Configuring QoS
Configuring Auto-QoS
•
Auto-QoS migration happens after a new device is connected when the
auto qos srnd4
global
configuration command is enabled.
Note
If an interface previously configured with legacy auto-QoS migrates to enhanced auto-QoS, voice
commands and configuration are updated to match the new global QoS commands.
Auto-QoS configuration migration from enhanced auto-QoS to legacy auto-QoS can occur only when
you disable all existing auto-QoS configurations from the interface.
Global Auto-QoS Configuration
Table 33-5
Generated Auto-QoS Configuration
Description
Automatically Generated Command {voip}
Enhanced Automatically Generated
Command{Video|Trust|Classify}
The switch automatically enables
standard QoS and configures the
CoS-to-DSCP map (maps CoS
values in incoming packets to a
DSCP value).
Switch(config)#
mls qos
Switch(config)#
mls qos map cos-dscp
0 8 16 26 32 46 48 56
Switch(config)#
mls qos
Switch(config)#
mls qos map cos-dscp 0
8 16 24 32 46 48 56
The switch automatically maps
CoS values to an ingress queue
and to a threshold ID.
Switch(config)#
no mls qos srr-queue
input cos-map
Switch(config)#
mls qos srr-queue
input cos-map queue 1 threshold 2 1
Switch(config)#
mls qos srr-queue
input cos-map queue 1 threshold 3 0
Switch(config)#
mls qos srr-queue
input cos-map queue 2 threshold 1 2
Switch(config)#
mls qos srr-queue
input cos-map queue 2 threshold 2 4 6
7
Switch(config)#
mls qos srr-queue
input cos-map queue 2 threshold 3 3 5
Switch(config)#
no mls qos srr-queue
input cos-map
Switch(config)#
mls qos srr-queue
input cos-map queue 1 threshold 2 3
Switch(config)#
mls qos srr-queue
input cos-map queue 1 threshold 3 6 7
Switch(config)#
mls qos srr-queue
input cos-map queue 2 threshold 1 4
The switch automatically maps
CoS values to an egress queue and
to a threshold ID.
Switch(config)#
no mls qos srr-queue
output cos-map
Switch(config)#
mls qos srr-queue
output cos-map queue 1 threshold 3 5
Switch(config)#
mls qos srr-queue
output cos-map queue 2 threshold 3 3
6 7
Switch(config)#
mls qos srr-queue
output cos-map queue 3 threshold 3 2
4
Switch(config)#
mls qos srr-queue
output cos-map queue 4 threshold 2 1
Switch(config)#
mls qos srr-queue
output cos-map queue 4 threshold 3 0
Switch(config)#
no mls qos srr-queue
output cos-map
Switch(config)#
mls qos srr-queue
output cos-map queue 1 threshold 3 4 5
Switch(config)#
mls qos srr-queue
output cos-map queue 2 threshold 3 6 7
Switch(config)#
mls qos srr-queue
output cos-map queue 2 threshold 1 2
Switch(config)#
mls qos srr-queue
output cos-map queue 2 threshold 2 3
Switch(config)#
mls qos srr-queue
output cos-map queue 3 threshold 3 0
Switch(config)#
mls qos srr-queue
output cos-map queue 4 threshold 3 1
