Implicit Constituent Selection Overview - Juniper JUNOSE 11.1.X - QUALITY OF SERVICE CONFIGURATION GUIDE 3-21-2010 Configuration Manual

Table 11: Comparison of Implicit and Explicit Shared Shaping (continued)
Related Topics

Implicit Constituent Selection Overview

The implicit selection process for simple and compound shared shaping are the same.
The process operates according to the following rules:
1.
2.
3.
4.
The implicit selection process for compound shared shaping operates according to
the following rules:
1.
2.
Chapter 13: Configuring Implicit and Explicit Constituent Selection for Shaping
Implicit Shared Shaping
Constituents consist of all nodes and
queues for the same logical interface type.
Active constituents are automatically
selected from all constituents according
to the implicit shared shaping rules.
Implicit Constituent Selection Overview on page 109
Configuring Implicit Constituents for Simple or Compound Shared Shaping on
page 114
Explicit Constituent Selection Overview on page 115
Configuring Explicit Constituents for Simple or Compound Shared Shaping on
page 120
The point at which the scheduler profile that contains a shared-shaping-rate
command is associated with a best-effort node or best-effort queue determines
the logical interface type that the shared shaper applies to. Logical interface types
include IP, VP, VC, VLAN, S-VLAN, and so on.
All nodes and queues for the same logical interface are potential constituents.
The best-effort node is selected if you configure node-based shared shaping. The
best-effort queue is selected if you configure queue-based shared shaping. If you
configure both, then the best-effort node is selected over the best-effort queue.
Non-best-effort queues are selected.
The point at which the scheduler profile that contains a shared-shaping-rate
command is associated with a best-effort node or best-effort queue determines
the logical interface type that the shared shaper applies to. Logical interface types
include IP, VP, VC, VLAN, and S-VLAN.
All nodes and queues for the same logical interface are potential constituents.
Explicit Shared Shaping
Constituents consist of all nodes and
queues for the same logical interface type.
Active constituents are explicitly selected
from all constituents by association with
a scheduler profile that includes the
shared-shaper-constituent command.
If the scheduler profile associated with a
constituent does not include this
command, then the constituent is not
active and is not shaped by the shared
shaper.
Implicit Constituent Selection Overview
109