(Optional) Setting the SNR on a G.SHDSL Interface
Context
The device supports the following SNR settings:
Uplink and downlink SNRs: When the actual SNR of the device is greater than the configured SNR, the device is activated successfully.
Lowest uplink and downlink SNRs: When the actual lowest SNR of the device is smaller than the configured lowest SNR, the device is disconnected.
Procedure
- Set the uplink and downlink SNRs on a G.SHDSL interface.
Run system-view
The system view is displayed.
Run either of the following commands to enter the G.SHDSL interface view.
- If the transmission mode is set to ATM, run:
interface atm interface-number
- If the transmission mode is set to PTM, run:
interface ethernet interface-number
- If the transmission mode is set to ATM, run:
Run shdsl current target snr margin upstream value
The uplink SNR is set.
By default, the uplink SNR on a G.SHDSL interface is 6 dB.
Run shdsl current target snr margin downstream value
The downlink SNR is set.
By default, the downlink SNR on a G.SHDSL interface is 6 dB.
- Set the lowest uplink and downlink SNRs on a G.SHDSL interface.
Run system-view
The system view is displayed.
Run either of the following commands to enter the G.SHDSL interface view.
- If the transmission mode is set to ATM, run:
interface atm interface-number
- If the transmission mode is set to PTM, run:
interface ethernet interface-number
- If the transmission mode is set to ATM, run:
Run shdsl worst case target snr margin upstream value
The lowest uplink SNR is set.
By default, the lowest uplink SNR on a G.SHDSL interface is 0 dB.
Run shdsl worst case target snr margin downstream value
The lowest downlink SNR is set.
By default, the lowest downlink SNR on a G.SHDSL interface is 0 dB.