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

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(config-scheduler-profile)# shaping-rate 300000
(config-scheduler-profile)# exit
(config)# scheduler-profile shared-1mbps
(config-scheduler-profile)# shared-shaping-rate 1000000 simple
(config-scheduler-profile)# exit
(config)# qos-profile subscriber-default-mode
(config-qos-profile)# atm-vc node
(config-qos-profile)# atm-vc node group AF
(config-qos-profile)# atm-vc node group EF
(config-qos-profile)# atm-vc queue traffic-class best-effort scheduler-profile
shared-1mbps
(config-qos-profile)# atm-vc queue traffic-class video scheduler-profile 300kbps
(config-qos-profile)# atm-vc queue traffic-class voice scheduler-profile 200kbps
(config-qos-profile)# exit
3.
Delete the rule in the default port type profile that creates IP best-effort queues
by default.
config)# qos-profile atm-default
(config-qos-profile)# no ip queue traffic-class best-effort
(config-qos-profile)# exit
4.
Attach the profile to the ATM subinterface for VC 3.
(config)# interface atm 11/0.10
(config-subif)# qos-profile subscriber-default-mode
(config-scheduler-profile)# exit
The qos-profile subscriber-default-mode command shown in this example is
appropriate if you have configured the SAR to be in default mode (by issuing the no
qos-mode-port command). If this QoS profile is attached in low-CDV mode, the
shaper is effective but the CDV is not correctly bounded, because the VC is not
reshaped in the SAR.
The following commands configure a QoS profile different from the one shown in
the previous example. In this example, the best-effort scheduler node for VC 3 is
shaped to a shared rate of 1 Mbps. The
qos-profile subscriber-low-cdv-mode
command is appropriate if you configure the SAR in low-CDV mode (by issuing the
qos-mode-port low-cdv command). The VC is reshaped to 1 Mbps in the SAR. If this
QoS profile is attached in the SAR default mode, the 1-Mbps shaper is disabled by
VC backpressure from the SAR.
(config)# qos-profile subscriber-low-cdv-mode
(config-qos-profile)# atm-vc node scheduler-profile shared-1mbps
(config-qos-profile)# atm-vc node group AF
(config-qos-profile)# atm-vc node group EF
(config-qos-profile)# atm-vc queue traffic-class best-effort
(config-qos-profile)# atm-vc queue traffic-class video scheduler-profile 300kbps
(config-qos-profile)# atm-vc queue traffic-class voice scheduler-profile 200kbps
(config-qos-profile)# exit
Related Topics
Configuring Simple Shared Shaping on page 81
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Simple Shared Shaping Overview on page 79
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Example: Simple Shared Shaping for ATM VCs
JUNOSe 11.1.x Quality of Service Configuration Guide