Administrator Guide

wred-profile
name
(OPTIONAL) Enter the keywords wred-profile then your
WRED profile name in character format (16 character
maximum). Or use one of the pre-defined WRED profile
names.
Pre-defined Profiles: wred_drop, wred-ge_y, wred_ge_g,
wred_teng_y, wred_teng_g.
multicast-
bandwidth
percentage
(OPTIONAL) Enter the keywords multicast-bandwidth
then the bandwidth percentage. The range is from 0 to
100%.
Defaults none
Command
Modes
CONFIGURATION
Command
History
This guide is platform-specific. For command information about other platforms,
refer to the relevant Dell Networking OS Command Line Reference Guide.
The following is a list of the Dell Networking OS version history for this command.
Version
8.3.19.0
Introduced on the S4820T.
Version
8.3.8.10
Introduced on the S4810.
Version 7.5.1.0 Added support for multicast-bandwidth.
Version 7.4.1.0
and 6.5.3.0
Introduced on the E-Series.
Usage
Information
This command does not uniquely identify a queue, but rather identifies only a set of
queues. The WRED curve is applied to all eight egress Multicast queues.
Important Points to Remember — Multicast-Bandwidth Option
• A unique multicast weighted fair queuing (WFQ) setting can be applied only on
a per port-pipe basis. The minimum percentage of the multicast bandwidth
assigned to any of the ports in the port-pipe takes effect for the entire port-
pipe.
• If the percentage of multicast bandwidth is 0, control traffic going through
multicast queues are dropped.
• The no form of the command without multicast-bandwidth and wred-
profile, removes both the wred-profile and multicast-bandwidth
configuration.
• On 10-Gigabit ports only, the multicast bandwidth option works only if the total
unicast bandwidth is more than the multicast bandwidth.
• If strict priority is applied along with multicast-bandwidth, the effect of strict
priority is on all ports where unicast and multicast bandwidth are applied.
• When multicast bandwidth is assigned along with unicast bandwidth, first
multicast bandwidth is reserved for that port, then the remaining unicast
1246
Quality of Service (QoS)