53-6
Catalyst 6500 Series Switch Software Configuration Guide—Release 8.7
OL-8978-04
Chapter 53 Using Automatic QoS
Using the Automatic QoS Macro on the Switch
Current QoS Default Settings
All current QoS settings are applied as described in the “Detailed Automatic QoS Configuration
Statements” section on page 53-18. Some of these QoS settings reflect the current QoS defaults. After
automatic QoS has been applied, all QoS settings, regardless of whether or not they were defaults, are
applied on the port/switch.
EtherChannel Considerations
The global automatic QoS command supports channeling. All outbound QoS is configured for all
channeling or nonchanneling interfaces. Channeling is not supported with the per-port automatic QoS
commands.
Video Traffic Considerations
The CoS and DSCP values that are associated with the video traffic are prioritized for the global QoS
settings. For more information, see the “Typical CoS and DSCP Values for Voice and Video Networks”
section on page 53-2.
Clearing the QoS Configuration
Clearing the QoS configuration resets the configuration to the default QoS values. The automatic QoS
features do not alter the default values.
PFC/PFC2 Support
No PFC or PFC2 is required for the ciscoipphone and trust cos keywords. A PFC or PFC2 is required
for the ciscosoftphone and trust dscp keywords.
1p1q0t/1p3q1t Port Support
All 1p1q0t/1p3q1t ports must either be in port-based mode or VLAN-based mode. If a change is required
(for example, if the port was configured for VLAN-based mode before you executed automatic QoS), a
syslog message displays. The message indicates that a change to an interface type was needed that
affected all ports in the module. For more information, see the “Interface Change for All Ports
Required—Warning Level” section on page 53-26.
Global Automatic QoS Macro
These sections describe the global automatic QoS macro:
• Overview, page 53-7
• Global Automatic QoS Detail Settings, page 53-7
To Next Page
Loading...
Need help?
General