138 CHAPTER 5: G.SHDSL INTERFACE CONFIGURATION COMMANDS
Example # Set the operating mode of interface ATM 5/0 to CO.
<Sysname> system-view
[Sysname] interface atm 5/0
[Sysname-Atm5/0] shdsl mode co
shdsl psd
Syntax shdsl psd { asymmetry | symmetry }
undo shdsl psd
View ATM (G.SHDSL) interface view
Parameter asymmetry: Specifies the asymmetric mode, where different power spectral
densities (PSD) are set for the central office (CO) and the customer premises
equipment (CPE).
symmetry: Specifies the symmetric mode, where the same PSD is set for the CO
and CPE.
n
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.
Description 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.
By default, the PSD of the G.SHDSL interface is in symmetric mode.
Example # Set the PSD of G.SHDSL interface ATM 5/0 to asymmetric mode.
<Sysname> system-view
[Sysname] interface atm 5/0
[Sysname-Atm5/0] shdsl psd asymmetry
shdsl rate
Syntax shdsl rate { auto | rate }
undo shdsl rate
View ATM (G.SHDSL) interface view
Parameter auto: Auto-negotiation mode
rate: Maximum single-pair rate of the G.SHDSL interface, in the range of 64 to
2,312, in units of kbps.
