Cisco Catalyst 3750-X Command Reference Manual page 94

auto qos video
Table 2-8 Auto-QoS Configuration for the Egress Queues
Egress Queue Queue Number
Priority (shaped) 1
SRR shared 2
SRR shared 3
SRR shared 4
Command Modes
Interface configuration
Command History Release
12.2(55)SE
Usage Guidelines
Use this command to configure the QoS appropriate for video traffic within the QoS domain. The QoS
domain includes the switch, the network interior, and edge devices that can classify incoming traffic for
QoS.
Auto-QoS configures the switch for video connectivity to a Cisco TelePresence system, a Cisco IP
camera, or a Cisco digital media player.
To take advantage of the auto-QoS defaults, you should enable auto-QoS before you configure other QoS
commands. You can fine-tune the auto-QoS configuration after you enable auto-QoS.
The switch applies the auto-QoS-generated commands as if the commands were entered from the
Note
command-line interface (CLI). An existing user configuration can cause the application of the generated
commands to fail or to be overridden by the generated commands. These actions occur without warning.
If all the generated commands are successfully applied, any user-entered configuration that was not
overridden remains in the running configuration. Any user-entered configuration that was overridden can
be retrieved by reloading the switch without saving the current configuration to memory. If the generated
commands fail to be applied, the previous running configuration is restored.
If this is the first port on which you have enabled auto-QoS, the auto-QoS-generated global configuration
commands are executed followed by the interface configuration commands. If you enable auto-QoS on
another port, only the auto-QoS-generated interface configuration commands for that port are executed.
When you enable the auto-QoS feature on the first port, these automatic actions occur:
•
•
Catalyst 3750-X and 3560-X Switch Command Reference
2-62
CoS-to-Queue Map
4, 5
2, 3, 6, 7
0
1
Modification
This command was introduced.
QoS is globally enabled (mls qos global configuration command), and other global configuration
commands are added.
After auto-QoS is enabled, do not modify a policy map or aggregate policer that includes AutoQoS
in its name. If you need to modify the policy map or aggregate policer, make a copy of it, and change
the copied policy map or policer. To use the new policy map instead of the generated one, remove
the generated policy map from the interface, and apply the new policy map.
Chapter 2 Catalyst 3750-X and 3560-X Switch Cisco IOS Commands
Queue (Buffer) Size
Queue Weight for Gigabit-Capable
(Bandwidth) Ports
up to 100 percent 25 percent
10 percent 25 percent
60 percent 25 percent
20 percent 25 percent
Queue (Buffer)
Size for 10/100
Ethernet Ports
15 percent
25 percent
40 percent
20 percent
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