Users Guide

Syntax
[No] service-pool wred {green | weight | yellow} {pool0 number/
string| pool1 number/string}
Parameters
service-pool Define the mapping between the service class and policy-based
QoS or routing.
wred Specify WRED curve parameters for a queue.
green Specify green (low) drop precedence to a queue.
weight Specify a weight factor to a queue.
yellow Specify yellow (medium) drop precedence to a queue.
pool0 Service-pool buffer 1 (default service-pool for PFC traffic) .
pool1 Service-pool buffer 0 (default service-pool for both lossy and
lossless traffic. traffic).
number Enter a weight for the queue as a number in the range of 1 to 15.
This parameter applies only if you specify the green or yellow
drop precedence.
string Enter the WRED profile name. It is a string of up to 32
characters. Or use one of the five pre-defined WRED profile
names. Pre-defined Profiles: wred_drop, wred-ge_y,
wred_ge_g, wred_teng_y, wred_teng_. This parameter applies
only if you specify a weight factor.
Default All queues on backplane ports operate in tail-drop (best-effort traffic) mode by default.
There is no default WRED green or yellow profile. The default weight is 0.
Command Modes CONFIGURATION mode
Command History
Version Description
9.10(0.1) Introduced on the S6010-ON and S4048T-ON.
9.8(1.0) Introduced on the Z9100-ON.
9.7(0.0) Introduced on the S6000-ON.
9.3.0.0 Introduced on the S6000 and Z9000 platforms
Usage Information
You can configure only service pools 0 and 1 because the Dell Networking OS uses
only these two service pools. The pool, service0, is used for lossy queues and the pool,
service1, is used for lossless (PFC) queues in all the platforms.
You can configure the weight for the WRED average queue size for service1, which is
the only the platform in which PFC is supported for this service pool.
A WRED profile contains a set of attributes, such as the minimum and maximum
threshold values, and the maximum drop rate for the received packets. You can add or
remove WRED parameter configurations for one or more shared service pools using a
Quality of Service (QoS) 1476