Users Guide

Command History
This guide is platform-specic. For command information about other platforms, see the relevant Dell Networking
OS Command Line Reference Guide.
Version Description
9.8(0.0P5) Introduced on the S4048-ON.
9.8(0.0P2) Introduced on the S3048-ON.
8.3.19.0 Introduced on the S4820T.
8.3.8.10 Introduced on the S4810.
7.5.1.0 Added support for multicast-bandwidth.
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 identies 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 eect for
the entire port-pipe.
• If the percentage of multicast bandwidth is 0, control trac going through multicast queues are dropped.
• The no form of the command without multicast-bandwidth and wred-profile, removes both the
wred-prole and multicast-bandwidth conguration.
• 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 eect of strict priority is on all ports where
unicast and multicast bandwidth are applied.
• When multicast bandwidth is assigned along with unicast bandwidth, rst multicast bandwidth is reserved for
that port, then the remaining unicast bandwidth congured is adjusted according to the bandwidth available
after reserving for multicast bandwidth.
queue ingress
Assign a WRED Curve to all eight ingress Multicast queues or designate the percentage for the Multicast bandwidth queue.
Syntax
queue ingress multicast {linecard slot number port-set number | all} [wred-
profile name]
To return to the default, use the no queue ingress multicast {linecard slot number port-set
number | all} [wred-profile name] command.
Parameters
linecard number Enter the keyword linecard then the line card slot number.
port-set number Enter the keywords port-set then the line card’s port pipe. The range is from 0 or 1.
all Enter the keyword all to apply to all line cards.
wred-prole name (OPTIONAL) Enter the keywords wred-profile then your WRED prole name in
character format (16 character maximum). Or use one of the pre-dened WRED prole
names.
Pre-dened Proles: wred_drop, wred-ge_y, wred_ge_g, wred_teng_y, wred_teng_g.
Quality of Service (QoS) 1269