Configuring WRED

WRED is configurable on the ingress side to control when to perform a tail drop or Random Early Drop (RED). Follow these steps to configure WRED.

1. Enter configuration mode.
   

   device# configure terminal
   

2. Create a WRED profile identified as profile 1, set the thresholds, and set the drop probability.
   

   device(config)# qos red-profile 1 min-threshold 30 max-threshold 60 drop-probability 44
   

3. Verify the WRED configuration.
   

   device(config)# do show qos red profiles 1
   
   Red Profile 1
           Minimum Threshold: 30
           Maximum Threshold: 60
           Drop Probability: 44  
   

4. Return to privileged exec mode.
   

   device(config)# exit
   

5. Save the configuration.
   

   device# copy running-config startup-config
   

WRED configuration example

device# configure terminal
device(config)# qos red-profile 1 min-threshold 30 max-threshold 60 drop-probability 44
device(config)# do show qos red profiles 1
device(config)# exit
device# copy running-config startup-config