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DescriptionName
The maximum transmission unit for the channel. This can be one of the
following:
• An integer between 1500 and 9216. This value corresponds to the
maximum packet size.
• fc—A predefined packet size of 2240.
• normal—A predefined packet size of 1500.
This field is always set to fc for Fibre
Channel.
Note
MTU drop-down list
If checked, the class is optimized to send packets to multiple destinations
simultaneously.
This option is not applicable to the Fibre
Channel.
Note
Multicast Optimized check box
Step 6
Click Save Changes.
Enabling a QoS System Class
The Best Effort or Fibre Channel system classes are enabled by default.
Procedure
Step 1
In the Navigation pane, click the LAN tab.
Step 2
In the LAN tab, expand LAN > LAN Cloud.
Step 3
Select the QoS System Class node.
Step 4
In the Work pane, click the General tab.
Step 5
Check the Enabled check box for the QoS system that you want to enable.
Step 6
Click Save Changes.
Disabling a QoS System Class
You cannot disable the Best Effort or Fibre Channel system classes.
All QoS policies that are associated with a disabled system class default to Best Effort or, if the disabled
system class is configured with a Cos of 0, to the Cos 0 system class.
Cisco UCS Manager GUI Configuration Guide, Release 2.0
300 OL-25712-04
Configuring System Classes