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

Page: 332 / 398

host1(config)# scheduler-profile service-provider-business
host1(config-scheduler-profile)# shaping-rate ancp-downstream -
(ancp-downstream % 2 * (1 - sp-qos-cell-mode))
TIP: To determine the expression value and the byte adjustment required, you must
account for the actual segmentation header overhead added by the DSLAM. DSLAMs
have different segmentation header overheads.
If the user packet size changes, you must change the expression value and the byte
adjustment value.
5.
To ensure that the router handles the byte adjustment value consistently for
VDSL and ADSL networks, apply the QoS parameter for frame shaping mode
globally.
host1(config)# qos-parameter frame-byte 8
NOTE: The ancp-downstream rate and sp-qos-cell-mode QoS parameters are
dynamically applied to QoS by ANCP.
Related Topics
■
Byte Adjustment for ADSL and VDSL Traffic Overview on page 293
■
qos-parameter
■
qos-parameter-define
■
qos-profile
■
scheduler-profile
■
shaping-rate
300 ■
Configuring a Parameter Definition to Adjust Frame Shaping Rates for VDSL Traffic
JUNOSe 11.1.x Quality of Service Configuration Guide