DELL 6024 User Manual

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Configuring Quality of Service
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Setting a Tail Drop Threshold 
1
Open the QoS Tail Drop page.
2
Select a threshold for each queue.
3
Click Apply Changes. 
The tail drop threshold is configured, and the device is updated.
Setting Tail Drop Parameters for an Interface: 
1
Open the QoS Tail Drop page.
2
Click Show All to display the Tail Drop Table page.
3
Select a status for each interface. 
4
Click Apply Changes. 
5
The tail drop status is defined for the interfaces.
Defining QoS Tail Drop Settings Using the CLI Commands
The following is an example of the CLI commands to define tail drop settings: 
console(config)#qos wrr-queue threshold 8 80
Defining QoS Class Maps
One IP ACL and/or one MAC ACL comprise a class map. Class maps are configured to match 
packet criteria, and are matched to packets on a first-fit basis. For example, Class Map A is assigned 
packets based only on an IP-based ACL or a MAC-based ACL. Class Map B is assigned to packets 
based on both an IP-based and a MAC-based ACL. 
Use the QoS Class Map page to enable assigning and editing class maps. To open the page, click 
Quality of Service
→ Advanced QoS Mode→ Class Map in the tree view. 
Table 10-12.
Tail Drop Settings CLI Commands
CLI Command
Description
qos wrr-queue threshold 
queue-id threshold-
percentage
Assigns tail-drop thresholds.