Juniper JUNOSE 11.1.X - QUALITY OF SERVICE CONFIGURATION GUIDE 3-21-2010, Configuration Manual

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Example: Simple Shared Shaping for ATM VPs
In the example shown in Figure 20 on page 85, VP 1 is shaped to a shared rate of 5
Mbps. The shared shaper requires that voice and video traffic be carried in queues
associated with the logical interface, which in this scenario is the VP. VP-level queuing
does not guarantee fairness to the voice and video traffic for each VC, but fairness
is not a major issue because admission control guarantees that the voice and video
queues do not become congested.
This example assumes the same traffic class and traffic-class group configurations
that are used in “Example: Simple Shared Shaping for ATM VCs” on page 83.
Figure 20: VP Shared Shaping
The following set of commands configures the shared shaper in Figure 20 on page 85.
(config)# scheduler-profile 2mbps
(config-scheduler-profile)# shaping-rate 2000000
(config-scheduler-profile)# exit
(config)# scheduler-profile 400kbps
(config-scheduler-profile)# shaping-rate 400000
(config-scheduler-profile)# exit
(config)# scheduler-profile shared-5mbps
(config-scheduler-profile)# shared-shaping-rate 5000000 simple
(config-scheduler-profile)# exit
(config)# qos-profile vp-subscriber1
(config-qos-profile)# atm-vp node scheduler-profile shared-5mbps
(config-qos-profile)# atm-vp node group AF
(config-qos-profile)# atm-vp node group EF
(config-qos-profile)# atm-vc node
(config-qos-profile)# atm-vc queue traffic-class best-effort scheduler-profile default
Example: Simple Shared Shaping for ATM VPs
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Chapter 10: Configuring Simple Shared Shaping of Traffic