System information

Configuring the Switch
3-144
3
CLI – The following example shows how to display the WRR weights assigned to
each of the priority queues.
Layer 3/4 Priority Settings
Mapping Layer 3/4 Priorities to CoS Values
This switch supports one method of prioritizing layer 3/4 traffic to meet application
requirements. Traffic priorities can be specified in the IP header of a frame using the
number of the TCP port. When these service is enabled, the priorities are mapped to
a Class of Service value by the switch, and the traffic then sent to the corresponding
output queue.
Because different priority information may be contained in the traffic, this switch
maps priority values to the output queues in the following manner:
• The precedence for priority mapping is IP DSCP Priority, and then Default Port
Priority.
Enabling IP DSCP Priority
The switch allows you to enable or disable the IP DSCP priority.
Command Attributes
• IP DSCP Priority Status – The following options are:
- Disabled – Disables the priority service. (Default Setting: Disabled)
- IP DSCP – Maps layer 3/4 priorities using Differentiated Services Code Point
Mapping.
Web – Click Priority, IP DSCP Priority Status. Select IP DSCP from the drop down
menu, then click Apply.
Figure 3-89 IP DSCP Priority Status
Console#show queue bandwidth 4-188
Queue ID Weight
-------- ------
0 1
1 2
2 4
3 8
Console