VDSL C
OMMANDS
29-74show lre noise-mgn
This command displays the targeted signal-to-noise margin that VDSL
ports must achieve to successfully complete initialization.
Syntax
show lre noise-mgn [unit/port]
unit - Stack unit. (Range: 1)
port - Port number. (Range: 1-16)
Command Mode
Privileged Exec
Command Usage
Use this command without the interface parameter to show the SNR
target for all VDSL ports on the switch, or with an interfa ce to display
this information for a specific port.
Each transceiver must achieve the targeted noise margin with a Bit
Error Rate (BER) of 10-7 or better to successfully complete
initialization. This indicates the maximum amount by which the
reference crosstalk noise level can be increased during a BER test
without causing the modem to fail the BER requirement.
Example
This example shows the default noise margin targets.
Related Commands
lre noise-mgn target (29-28)
Console#show lre noise-mgn 1/1
Upstream Noise Margin Min: 5 dB
Downstream Noise Margin Min: 5 dB
Upstream Noise Margin Target: 6 dB
Downstream Noise Margin Target: 6 dB
Console#