Service Manual

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.
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-specic. 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 Description
9.8(0.0) Introduced on the S3048-ON and S4048-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.
Quality of Service (QoS)
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