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ALC1224 User’s Guide
ADSL Port Commands
11-5
Trellis coding helps to reduce the noise in ADSL transmissions. Trellis may reduce throughput but it makes the
connection more stable.
1
The numbers of milliseconds of interleave delay for downstream and upstream transmissions are listed. The total
output power of the transceiver varies with the length and line quality. The farther away the subscriber’s ADSL
modem or router is or the more interference there is on the line, the higher the power will be.
Current ATUR Information
contains data acquired from the ATUR (ADSL Termination Unit – Remote),
in this case the subscriber’s ADSL modem or router, during negotiation/provisioning message interchanges. This
information can help in identifying the subscriber’s ADSL modem or router. The country code is from the Vendor
ID (g.994.1). The provider code includes the Vendor ID and Version Number obtained from Vendor ID fields
(g.994.1) or R-MSGS1(T1.413).
Information obtained prior to training to steady state transition will not be valid or will be old information. Annex
A refers to POTS.
11.3.6 Lineperf
Command
Syntax:
lcman command <slot> lineperf <port>
where
<slot>
=
The number of the slot where the ALC1224 is located.
<port>
=
A port number (1 ~ 24).
This
command shows the line performance counters of an ADSL port.
An example is shown next.
Figure 11-4 Lineperf Command Example
These counters display line performance data that has been accumulated since the system started. In the list above
the definitions of near end/far end will always be relative to the ATU-C (ADSL Termination Unit-Central Office).
Downstream (ds) refers to data from the ATU-C and upstream (us) refers to data from the ATU-R. “I” stands for
interleaved and “ni” stands for non-interleaved (fast mode).
1
At the time of writing, the ALC1224 always uses Trellis coding.
adsl lineperf 11
Current performance counters:
nfebe-I/nfebe-ni : 0/1
ncrc-I/ncrc-ni : 0/208
nfecc-I/nfecc-ni : 0/1
nfec-I/nfec-ni : 0/21526
nblks-ds/nblks-us : 481208/60151
nsec-ds/nsec-us : 0/0
n-es-ds/n-es-us : 41/3
n-ses-ds/n-ses-us : 0/2
n-uas-ds/n-uas-us : 0/0
Summary of Contents for ALC1224
Page 1: ...ALC1224 ADSL Line Card Version 3 50 LK 0 LV 0 August 2004 User s Guide...
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Page 38: ...ALC1224 User s Guide 2 6 Web Configurator Introduction Figure 2 6 ALC Edit Port Setup...
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Page 129: ...Index V Part V Index This part provides an index of important terms...
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