Juniper JUNOSE 11.1.X - QUALITY OF SERVICE CONFIGURATION GUIDE 3-21-2010, Руководство по настройке

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For compound shared shaping, explicit selection is also useful when you want queues
as the active constituents instead of the node below them. By choosing queues you
can assign appropriate priority or weights.
In the set of nodes and queues for a logical interface, only scheduler objects associated
with a scheduler profile that includes a
shared-shaping-constituent command are
considered constituents. Objects that are not explicitly selected are exempt from the
shared shaper.
To identify the constituents for simple shared shaping, include the
explicit-constituents keyword with the shared-shaping-rate simple command in
a scheduler profile that you associate with a best-effort node or queue to identify the
logical interface.
NOTE: If you explicitly specify both a node and the queues stacked above the node
as constituents in a scheduler profile, compound shared shaping uses the node as
the constituent.
For compound shared shaping, omit the simple keyword. For a compound shared
shaper, you can further designate the explicit constituents as priority or weighted.
Explicit Shared Shaping Example
In Figure 33 on page 117, two scheduler profiles are applied to scheduler objects VC
1 best effort node, VC 1 AF node, and VC 1 EF node. The shared-shaping-constituent
command in each profile specifies that the associated object is an explicit constituent
of the shared shaper.
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Explicit Constituent Selection Overview
JUNOSe 11.1.x Quality of Service Configuration Guide