Configuring Global QoS Parameters Configuring QoS
page 24-18 OmniSwitch 6600 Family Network Configuration Guide April 2006
Classifying Bridged Traffic as Layer 3
In some network configurations you may want to force the switch to classify bridged traffic as routed
(Layer 3) traffic. Typically this option is used for QoS filtering. See Chapter25, “Configuri ng ACLs,” for
more information about filtering.
If this option is enabled:
•Switch performance may be slower.
•The switch may bridge and route traffic to the same destination.
Note. When qos classifyl3 bridged is enabled, bridged IP packets are prioritized based on ToS, not
802.1p.
If qos classifyl3 bridged is enabled, the switch will classify bridged IP packets with Layer 3 (routing)
conditions. In addition, Layer 2 ACLs will be disabled for IP traffic. (This functionality is different from
the OmniSwitch 7700/7800/8800, which can apply Layer 2 ACLs to IP traffic even when qos classifyl3
bridged is enabled.) If the default routed disposition is set to deny or drop when qos classifyl3 bridged is
enabled, all bridged IP packets will be dropped.
To configure the switch to classify bridged traffic as Layer 3, use the qos classifyl3 bridged command.
-> qos classifyl3 bridged
To disable classifying bridged traffic as Layer 3, enter the no form of the command:
-> qos no classifyl3 bridged
The setting is not active until you enter the qos apply command. For more information about the qos
apply command, see “Applying the Configuration” on page 24-46.
Setting the Statistics Interval
To change how often the switch polls the network interfaces for QoS statistics, use the qos stats interval
command with the desired interval time in seconds. The default is 60 seconds. For example:
-> qos stats interval 30
Statistics are displayed through the show qos statistics command. For more information about this
command, see the OmniSwitch CLI Reference Guide.
Returning the Global Configuration to Defaults
To return the global QoS configuration to its default settings, use the qos reset command. The defaults
will then be active on the switch. For a list of global defaults, see “QoS Defaults” on page24-9.
Note. The qos reset command only affects the global configuration. It does not affect any policy configu-
ration.