Juniper IP SERVICES - CONFIGURATION GUIDE V 11.1.X, Configuration Manual

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Use to enable the QoS adaptive mode for ANCP.
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QoS adaptive mode enables the system to shape VLAN and ATM VC downstream
rates received from ANCP by dynamically creating QoS parameter instances
associated with the ANCP (L2C) downstream application.
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Example
host1(config-l2c)# qos-adaptive-mode
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Use the no version to disable QoS adaptive mode for the system.
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See qos-adaptive-mode.
Triggering ANCP Line Configuration
Use the l2c line-configuration command to trigger line configuration to the access
node. Issuing this command sends a GSMP port management message to the access
node. This message enables the B-RAS to configure a service profile name on an
access loop.
NOTE: Before issuing the l2c line-configuration command, a profile must already
be configured locally on the access node.
l2c line-configuration
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Use to trigger a GSMP port management message to the access node. This
message enables the B-RAS to configure a service profile name on an access
loop.
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Example
host1# l2c line-configuration interface atm 2/0.11 profile1
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There is no no version.
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See l2c line-configuration.
Adjusting the Data Rate Reported by ANCP for DSL Lines
When a DSLAM calculates the data rate, it ignores additional headers on the DSL
line. When ANCP reports the upstream data rate (L2C Type 4 Sub-type 129) or the
downstream data rate (L2C Type 4 Sub-type 130), it includes the headers in its
calculation and therefore reports a slightly higher value. This discrepancy causes the
QoS shaping rate to be slightly higher than the actual rate.
You can use the adjustment-factor command to set a percentage value ANCP applies
to the data rate to generate a more accurate value that is reported to AAA whenever
AAA requests the data rate from ANCP.
ANCP does not report the calculated data rate to RADIUS or to L2TP.
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Triggering ANCP Line Configuration
JUNOSe 11.1.x IP Services Configuration Guide