Configuration/Port/VDSL Far-End Profile Help

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Profile

Port

The port assigned to this interface.

Rate Mode

Specifies the rate selection behavior for the line in the upstream direction.

manual: forces the rate to the configured rate

adapt-at-init: adapts the line at initialization only

dynamic: adapts the line at initialization and showtime

Default: dynamic

Maximum Power(dB)

Specifies the maximum aggregate upstream power level in the range 0 to 14.5 dBm (in 0.1dBm).

Default: 145

Maximum SNR Margin(dB)

Specifies the maximum upstream Signal/Noise Margin in units of 0.10 dB, for a range of 0 to 31.0 (in 0.1dBm).

Default: 160

Minimum SNR Margin(dB)

Specifies the minimum upstream Signal/Noise Margin in units of 0.10 dB, for a range of 0 to 31.0 dB (in 0.1dBm).

Default: 0

Target SNR Margin(dB)

Specifies the target upstream Signal/Noise Margin in units of 0.10 dB, for a range of 0 to 31.0 dB. This is the Noise Margin the transceivers must achieve with a BER of 10^-7 or better to successfully complete initialization.

Default: 60

Fast Maximum Data Rate(KB/s)

Specifies the maximum upstream fast channel data rate in steps of 1000 bits/second. The maximum aggregate upstream transmit speed of the line can be derived from the sum of maximum upstream fast and slow channel data rates.

Default: 60,000

Fast Minimum Data Rate(KB/s)

Specifies the minimum upstream fast channel data rate in steps of 1000 bits/second. The minimum aggregate upstream transmit speed of the line can be derived from the sum of minimum upstream fast and slow channel data rates.

Default: 0

Interleave Maximum Data Rate(KB/s)

Specifies the maximum upstream interleave channel data rate in steps of 1000 bits/second.

Default: 60,000

Interleave Minimum Data Rate(KB/s)

Specifies the minimum upstream interleave channel data rate in steps of 1000 bits/second.

Default: 0

Power Backoff Control

Upstream power backoff (PBO) control for this line. For transceivers which do not support upstream PBO control, this object MUST be fixed at disabled. If auto is selected, the transceiver will automatically adjust the power backoff. If manual is selected, then the transceiver will use the value from PBO Level.

disabled

auto

manual

Default:

Disabled

PBO PSD Template

The upstream PSD template to be used for the line.

Default: ansi-fftcab-m1

Downshift SNR Margin

Configured Signal/Noise Margin for rate downshift. If the noise margin falls below this level, the modem should attempt to decrease its transmit rate.

Default: 30

Upshift SNR Margin

Configured Signal/Noise Margin for rate upshift. If the noise margin rises above this level, the modem should attempt to increase its transmit rate.

Default: 90

Min Downshift Time

Minimum time (in seconds)  in seconds that the current margin is below downshiftSnrMgn before a downshift occurs.

Default: 30

Min Upshift Time

Minimum time (in seconds) in seconds that the current margin is above upshiftSnrMgn before an upshift occurs.

Default: 30

Bit Swap

Enable or disable downstream bit swap.

Default: enabled

Impulse Noise Protection

The minimum impulse noise protection for the upstream bearer channel expressed in symbols. One symbol equals 250 uS.

noProtection, halfSymbol, singleSymbol, twoSymbols, fourSymbols,

eightSymbols, sixteenSymbols

Default: twoSymbols

Max Interleaving Delay

Specifies the maximum interleave delay for the downstream slow channel.

Default: 20

PhyR Support

Enable or disable downstream PHYR.

enable

disable

Default: enable

PhyR Max INP

PHYR maximum upstream impulse noise protection. A value of 0 specifies no protection. The values 5 through 160 specify the number of symbols in 1/10 increments.

Default: 0

PhyR Min RSOverhead

PHYR minimum downstream RS overhead.

Default: 0

PhyR Rtx Ratio

PHYR minimum downstream fraction of the line rate allocated for retransmission.

Default: 0

 

April 18, 2012