Chapter 4 Status Screens
Table 8 Status > VDSL Statistics (continued)
LABEL DESCRIPTION
VDSL Port Details
These are the maximum Upstream and Downstream transfer rates for the ports that belong to this profile. Upstream traffic refers to traffic from the
Line Rate | This indicates the maximum upstream/downstream net data rate |
| currently attainable on this line. |
|
|
Actual Net Line | This indicates the actual upstream/downstream data transmission rate. |
Rate |
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|
Trellis Coding | Trellis coding is a modulation scheme which allows highly efficient |
| transmission of information over |
| telephone lines. N/A means Trellis coding is disabled or not used on the |
| |
|
|
SNR Margin | This indicates the upstream/downstream SNR margin. |
|
|
Actual Delay | This indicates the actual upstream/downstream transmission delay (in |
| milliseconds). |
|
|
Transmit | This indicates the upstream/downstream transmission power of the line. |
Power |
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|
|
Receive Power | This indicates the upstream/downstream receiving power of the line. |
|
|
Actual INP | This indicates the actual impulse noise protection (INP). |
|
|
Total | This indicates the upstream/downstream attenuation. |
Attenuation |
|
|
|
Attainable Net | This indicates the maximum upstream/downstream net data rate |
Data Rate | currently attainable on this line. |
|
|
VDSL Band | The fields in this section indicate the status for upstream bands 0, 1, 2, 3 |
Status | (U0, U1, U2, U3) and downstream bands 1, 2, 3 (D1, D2, D3). |
|
|
Line | This indicates the line attenuation status for each upstream and |
Attenuation | downstream band. NA displays when the band is not used. |
|
|
Signal | This indicates the signal attenuation status for each upstream and |
Attenuation | downstream band. NA displays when the band is not used. |
|
|
SNR Margin | This indicates the signal to noise ratio for each upstream and |
| downstream band. NA displays when the band is not used. |
|
|
Transmit | This indicates the line transmission power for each upstream and |
Power | downstream band. NA displays when the band is not used. |
|
|
Since Link time | This indicates VDSL performance information recorded since the |
| connection is up. |
|
|
FEC | This indicates the number of Forward Error Correction Seconds (FECs) |
| failures since the last reset. |
|
|
CRC | This indicates the number of CRC (Cyclic Redundant Check) error(s) |
| since the last reset. |
|
|
ES | This indicates the number of port endpoint errored seconds (ESs) since |
| the last reset. |
|
|
SES | This indicates the number of port endpoint severely errored seconds |
| (SESs) since the last reset. |
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| 63 |
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