3Com MSR 30 Shdsl psd, Shdsl rate, Example # Set the operating mode of interface ATM 5/0 to CO

138CHAPTER 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.