Chapter 4 Status Screens
P-870HN-51D User’s Guide
63
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 P-870HN-51D to the
Central Organization Equipment (COE). Downstream traffic refers to traffic from the COE
to the P-870HN-51D.
Line Rate This indicates the maximum upstream/downstream net data rate
currently attainable on this line.
Actual Net Line
Rate
This indicates the actual upstream/downstream data transmission rate.
Trellis Coding Trellis coding is a modulation scheme which allows highly efficient
transmission of information over band-limited channels such as
telephone lines. N/A means Trellis coding is disabled or not used on the
P-870HN-51D.
SNR Margin This indicates the upstream/downstream SNR margin.
Actual Delay This indicates the actual upstream/downstream transmission delay (in
milliseconds).
Transmit
Power
This indicates the upstream/downstream transmission power of the line.
Receive Power This indicates the upstream/downstream receiving power of the line.
Actual INP This indicates the actual impulse noise protection (INP).
Total
Attenuation
This indicates the upstream/downstream attenuation.
Attainable Net
Data Rate
This indicates the maximum upstream/downstream net data rate
currently attainable on this line.
VDSL Band
Status
The fields in this section indicate the status for upstream bands 0, 1, 2, 3
(U0, U1, U2, U3) and downstream bands 1, 2, 3 (D1, D2, D3).
Line
Attenuation
This indicates the line attenuation status for each upstream and
downstream band. NA displays when the band is not used.
Signal
Attenuation
This indicates the signal attenuation status for each upstream and
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
Power
This indicates the line transmission power for each upstream and
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.
Table 8 Status > VDSL Statistics (continued)
LABEL DESCRIPTION
