Users Guide

Version Description
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 single command. The service-pool wred command is similar in usage and
working to the service-class bandwidth-percentage queue-id command.
Example
Dell(conf-wred) #wred thresh-1
Dell(conf-wred) #threshold min 100 max 200 max-drop-rate 40
Dell(conf-wred) #wred thresh-2
Dell(conf-wred) #threshold min 300 max 400 max-drop-rate 80
Dell(conf) #service-pool wred green pool0 thresh-1 pool1 thresh-2
Dell(conf) #service-pool wred yellow pool0 thresh-3 pool1 thresh-4
Dell(conf) #service-pool wred weight pool0 11 pool1 4
DSCP Color Map Commands
The DSCP color map allows you to set the number of specific DSCP values to yellow or red. Traffic marked as yellow delivers traffic to the
egress queue which will either transmit the packet if it has available bandwidth or drop the packet due to no ability to send. Traffic marked
as red (high drop precedence) is dropped.
dscp
Sets the number of specific DSCP values for a color map profile to yellow or red.
Syntax
dscp {yellow | red} [list-dscp-values]
To remove a color policy map profile, use the no dscp {yellow | red} [dscp-list] command.
Parameters
Yellow Enter the yellow keyword. Traffic marked as yellow delivers traffic to the egress queue
which either transmits the packet if it has available bandwidth or drops the packet due to
no ability to send.
Red Enter the red keyword. Traffic marked as red is dropped.
dscp-list Enter a list of IP DSCP values. The dscp-list parameter specifies the full list of IP DSCP
value(s) for the specified color. Each DSCP value in a list is separate values by commas –
no spaces (1,2,3) or indicates a list of values separated by a hyphen (1-3). Range is 0 to
63.
Defaults None
1266 Quality of Service (QoS)