User Guide for FibeAir® IP-20 All-Outdoor Products, CeraOS 10.5
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A WRED profile can be assigned to each queue. The WRED profile assigned to the
queue determines whether or not to drop incoming frames according to the
occupancy of the queue. As the queue occupancy grows, the probability of
dropping each incoming frame increases as well. As a consequence, statistically
more TCP flows will be restrained before traffic congestion occurs.
18.4.2
Configuring WRED Profiles (CLI)
To configure a WRED profile, enter the following command in root view:
root> ethernet qos wred-profile-tbl add profile-id <profile-id>
green-min-threshold <green-min-threshold> green-max-threshold
<green-max-threshold> green-max-drop <green-max-drop> yellow-
min-threshold <yellow-min-threshold> yellow-max-threshold
<yellow-max-threshold> yellow-max-drop <yellow-max-drop>
To edit an existing WRED profile, enter the following command in root view:
root> ethernet qos wred-profile-tbl edit profile-id <profile-
id> green-min-threshold <green-min-threshold> green-max-
threshold <green-max-threshold> green-max-drop <green-max-drop>
yellow-min-threshold <yellow-min-threshold> yellow-max-
threshold <yellow-max-threshold> yellow-max-drop <yellow-max-
drop>
To display a WRED profile, enter the following command in root view:
root> ethernet qos wred-profile-tbl show profile-id <profile-
id>
To delete a WRED profile, enter the following command in root view:
root> ethernet qos wred-profile-tbl delete profile-id <profile
id>
You cannot delete a WRED profile that is assigned to a queue. You must first
remove the WRED profile from the queue by replacing it with a different WRED
profile. You can then delete the WRED profile.
Note:
Each queue always has a WRED profile assigned to it. By default,
WRED Profile 31 is assigned to every queue until a different profile is
assigned.
Table 191: WRED Profile CLI Parameters
Parameter
Input Type
Permitted Values
Description
profile-id
Number
1 - 30
A unique ID to identify the profile.
green-min-threshold
Number
0 - 8192
The minimum throughput of green
frames for queues with this profile, in
Kbytes. When this value is reached, the
system begins dropping green frames
in the queue.
green-max-threshold
Number
0 - 8192
The maximum throughput of green
frames for queues with this profile, in
Kbytes. When this value is reached, all
green frames in the queue are
dropped.