SMC Networks 8124PL2, Management Manual

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Class of Service Configuration
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CLI – The following example shows how to assign WRR weights to each of the
priority queues.
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.
Selecting IP DSCP Priority
The switch allows you to enable or disable IP DSCP priority.
Command Attributes
• IP DSCP Priority Status – Enables the priority services . Maps layer 3/4
priorities using Differentiated Services Code Point Mapping. (Default Setting:
Disabled)
Web – Click Priority, IP DSCP Priority Status. Select IP DSCP, then click Apply.
Figure 3-95. IP DSCP Priority Status
Console(config)#queue bandwidth 1 2 4 8 4-172
Console(config)#exit
Console#show queue bandwidth
4-174
Information of Eth 1/1
Queue ID Weight
-------- ------
0 1
1 2
2 3
3 8
Information of Eth 1/2
Queue ID Weight
.
.
.