Reference Guide

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 bandwidth configured
is adjusted according to the bandwidth available after reserving for multicast
bandwidth.
Related
Commands
show queue statistics egress — displays the egress queue statistics.
queue ingress
Assign a WRED Curve to all eight ingress Multicast queues or designate the percentage for the Multicast bandwidth
queue.
S4820T
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-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.
Defaults none
Command Modes CONFIGURATION
1112