Command Reference Guide

3Com Router 5000 Family and Router 6000 Family shdsl psd ● 301
Command Reference
shdsl psd
Purpose Use the shdsl psd command to set PSD of the G.SHDSL interface working as CPE.
It is not necessarily the same as the one set at CO.
Use the undo shdsl psd command to restore the default.
Syntax shdsl psd { asymmetry | symmetry }
undo shdsl psd
Parameters asymmetry
Asymmetric mode, where different power spectral
densities (PSD) are set for the central office (CO) and
the customer premises equipment (CPE).
symmetry
Symmetric mode, where the same PSD is set for the
CO and CPE.
Power spectral density (PSD) is the amount of power per unit (density) of frequency
(spectral) as a function of the frequency. PSD describes how the power of a time
series is distributed with frequency.
Default By default, the PSD of the G.SHDSL interface is in symmetric mode.
Example Set the PSD of the G.SHDSL interface to asymmetric mode.
[3Com -Atm1/0/0] shdsl psd asymmetry
View This command can be used in the following views:
■ ATM (G.SHDSL) Interface view