3Com MSR 50 Rate is 4,624 kbps, Single-pair interface rate to auto mode, Interface, Ratio SNR

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n	■ For four-wire (dual-pair) G.SHDSL, the interface rate is two times single-pair
	rate. For example, if you set single-pair rate to 2,312 kbps, four-wire interface
	rate is 4,624 kbps.
	■ Because four-wire G.SHDSL interfaces cannot negotiate rate, do not set their
	single-pair interface rate to auto mode.
Description	Use the shdsl rate command to set the single-pair interface rate of the SHDSL
	interface.
	Use the undo shdsl rate command to restore the default, that is, auto.
	In actual applications, likelihood exists that the maximum downlink rate could not
	reach the specified rate as restricted by ATU-C and line conditions. If you select the
	auto mode, CPE and CO can negotiate a rate commensurate with the current line
	condition during the activating process. If fixed rates are set at the two ends, the
	two parties negotiate a rate. In case the lower rate between them cannot be
	provided, the line could not be activated.
	By default, the rate of two-wire G.SHDSL interface is set to auto-negotiation
	mode; the single-pair interface rate of four-wire G.SHDSL interface is set to 2,312
	kbps (four-wire G.SHDSL interface rate is 4,624 kbps).
Example	# Configure ATM 5/0 to operate in the auto-negotiation mode.
	<Sysname> system-view
	[Sysname] interface atm 5/0
	[Sysname-Atm5/0] shdsl rate auto
shdsl snr-margin
Syntax	shdsl snr-margin[ current current-margin-value ] [ snext snext-margin-value ]
	undo shdsl snr-margin
View	ATM (G.SHDSL) interface view
Parameter	current-margin-value: Sets a target margin, in the range 0 to 10. During SHDSL
	line training, this target margin is considered in addition to the signal-to-noise
	ratio (SNR) threshold. A larger margin value means increased link stability and
	noise suppression ability.
	snext-margin-value: Sets a target margin, in the range 0 to 10. During SHDSL line
	training, this target margin is considered in addition to the SNEXT threshold. A
	larger margin value means increased link stability and noise suppression ability.
Description	Use the shdsl snr-margincommand to set a target margin to signal-to-noise
	ratio (SNR).
	Use the undo shdsl snr-margincommand to restore the default.