R0106-HP MSR Router Series Interface Command Reference(V7)

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Default
Current-margin-value is 2 and snext-margin-value is 0.
Views
EFM SHDSL_8WIRE_BIS interface view
Predefined user roles
network-admin
Parameters
current current-margin-value: Specifies the target margin for the current SNR, in the range of 0 to 10. The
default value is 2. During SHDSL line training, this target margin is considered in addition to the current
SNR threshold. A larger margin value results in increased link stability and enhanced noise suppression
ability.
snext snext-margin-value: Specifies the target margin for the lowest SNR, in the range of 0 to 10. The
default value is 0. During SHDSL line training, this target margin is considered in addition to the lowest
SNR threshold. A larger margin value results in increased link stability and enhanced noise suppression
ability.
Usage guidelines
Setting the margin can affect the maximum rate of the line. When the line condition is good, you can set
a small margin to obtain higher rates. When the line is noisy, this might cause disconnections.
Examples
# Set the SNR margin to 5 for interface EFM 2/4/0.
<Sysname> system-view
[Sysname] interface efm 2/4/0
[Sysname-EFM2/4/0] shdsl snr-margin current 5
shdsl wire
Use shdsl wire to set the wire mode for an EFM interface.
Use undo shdsl wire to restore the default.
Syntax
shdsl wire { 2 | 4-enhanced | 4-standard | 6 | 8 | auto }
undo shdsl wire
Default
The EFM SHDSL_8WIRE_BIS interface operates in eight-wire mode.
Views
EFM SHDSL_8WIRE_BIS interface view
Predefined user roles
network-admin
Parameters
2: Specifies the two-wire mode.
4-enhanced: Specifies the four-wire enhanced mode. In this mode, one pair of the four wires starts
negotiation with the remote end first, and then the other pair starts negotiation with the remote end.