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Parameter
Description
Valid Options
Max SNR
Maximum downstream or upstream signal-to-noise ratio (SNR)
margin defines the amount of margin above target SNR that must
be present before power cutback occurs.
For IPTV, Calix recommends enabling power cutback by setting
maximum SNR margin to 16 dB for both upstream and
downstream directions.
For HSI, Calix recommends an additional 5 dB of margin above
target SNR before power cutback is allowed. This corresponds
to a maximum SNR margin of 10 dB for supporting HSI.
0.0-31.0
16 ‡
(dB, in 0.1 dB
increments)
Target SNR
Target downstream or upstream signal-to-noise ratio (SNR) margin
defines the SNR margin that must be available when the handshake
process is determining the capability of each subcarrier. This has a
direct impact on the attainable bitrate as a higher margin forces few
symbols per constellation.
For standard DSL deployments, Calix recommends a value of 6
dB for both upstream and downstream directions.
For IPTV, Calix recommends a value of at least 8 dB for both
upstream and downstream directions.
For bonded VDSL2 services, Calix recommends a value of 10
dB for the upstream direction.
0.0-31.0
6 ‡
(dB, in 0.1 dB
increments)
‡Default
To modify the basic parameters in a DSL template
1.
On the Navigation Tree, click
E-Series
.
2.
Click
Template
>
DSL
.
3.
In the Work area, double-click the DSL template that you want to modify.
4.
Click
Basic
to access the basic level of parameters for the DSL template.
5.
Refer to the table above for the parameter descriptions and options and set the values as
necessary.
6.
Click
Apply
.
For CLI:
set dsl-port <name> basic
set dsl-template <name> basic [dsl-bond-interface|service-type|path-
latency|fallback-vpi|fallback-vci|vdsl-profile|report-events|power-
save|power-save-timeout|description|ds-min-rate|ds-max-rate|us-min-
rate|us-max-rate|dsl-gos|eth-gos|ds-min-inp|us-min-inp|ds-intrlv-
max-latency|us-intrlv-max-latency|ds-min-snr|ds-max-snr|ds-target-
snr|us-min-snr|us-max-snr|us-target-snr|admin-state]
Modifying the Advanced DSL Port Template Parameters
Modifies the advanced parameters for a DSL Port template that can be applied to a DSL
port, replacing the DSL port settings.
The following additional parameters apply to ADSL2+ capable ports only.
