2-18.13 Wred - OTS ET42202M-S-PD User Manual

ET42202M-S-PD
L2+ Managed 20-port 100Base-FX/1000Base-X SFP + 4-port 10/100/1000Base-T or
100/1000Base-FX SFP Combo Optical Ethernet Switch with AC + DC inputs

2-18.13 WRED

The section allows user to configure the WRED function for the switch. This page allows you
to configure the Random Early Detection (RED) settings for queue 0 to 5.
RED cannot be applied to queue 6 and 7.
Through different RED configuration for the queues (
Weighted Random Early Detection (
The settings are global for all ports in the stack.
The displayed settings are:
Web Interface
To configure the WRED Configuration parameters in the web interface:
1. Click Configuration, WRED Configuration
2. Evoke to select enable or disable WRED
3. Key-in each Parameter value.
4. Click the save to save the setting
5. If you want to cancel the setting then you need to click the Reset button.
It will revert to previously saved values
Figure 2-18.13: The WRED Configuration
Parameter description:
Queue :
The queue number (QoS class) for which the configuration below applies.
Enable :
Evoke to enable or disable the WRED function on the switch QoS Queue.
Min. Threshold :
Controls the lower RED threshold. If the average queue filling level is below this threshold,
the drop probability is zero. This value is restricted to 0-100.
Max. DP1 :
Controls the drop probability for frames marked with Drop Precedence Level 1 when the
average queue filling level is 100%. This value is restricted to 0-100.
Max. DP2 :
Controls the drop probability for frames marked with Drop Precedence Level 2 when the
average queue filling level is 100%. This value is restricted to 0-100.
Max. DP3 :
Controls the drop probability for frames marked with Drop Precedence Level 3 when the
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QoS classes
) operation between queues.
WRED
switch.
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) it is possible to obtain
Ver.1.0