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Following are the Line-Config subprofile parameters, shown with default values, for
configuring power:
[in AL-DMT/{ any-shelf any-slot 0 }:line-config]
max-aggr-power-level-up = 13
max-aggr-power-level-down = 20
max-power-spectral-density = 40
gain-default = 20-db
Parameter
max-aggr-power-level-up
max-aggr-power-level-
down
max-power-spectral-
density
gain-default
Fast and interleaved bit-rate parameters
Bit-rate parameters specify minimum, maximum, and planned upstream and
downstream bit rates for a rate-adaptive connection. Bit rates depend on the physical
interface (the line to which the central office equipment (COE) and customer
premises equipment (CPE) are connected) and the ADSL interleaved or fast channel.
The line-latency-up and line-latency-down settings in the Line-Config subprofile
(fast or interleave) determine which channel is used in each direction. For more
information, see "Line activation and DMT parameters" on page 7-2.
Fast-Path-Config subprofile
The following configuration shows the default settings for the Fast-Path-Config
subprofile. The bit-rate parameter settings indicate use of the fast channel for both
upstream and downstream traffic. Note that in the current software version, both
upstream and downstream traffic must use the same channel.
[in AL-DMT/{ any-shelf any-slot 0 }:fast-path-config]
min-bitrate-up = 128
min-bitrate-down = 128
max-bitrate-up = 1000
max-bitrate-down = 8000
Stinger® MRT Getting Started Guide
Configuring the ADSL Line Interfaces
Configuring ATM ADSL-DMT interfaces
Setting
Specifies the maximum aggregate power level on the
upstream channel. The valid range is from 0dBm to
13dBm (the default).
Specifies the maximum aggregate power level on the
downstream channel. Its valid range is from 0dBm to
20dBm (the default).
Specifies the maximum PSD in both directions. Its valid
range is from 34 to 52 in even-number increments.
The default value is 40. If you specify an odd number,
the system uses the even-number setting below that
number. The actual value used is the negative value of
the number that is specified.
Specifies the default gain value in dB (16dB or 20dB) for
automatic gain control (AGC). The optimum value for
downstream transmission is 20dB. The optimum value
for upstream transmission is 16dB (the default).
7-7
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