ZyXEL Communications ALC-1024L, User Manual

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Commands with MSC
3-6 ADSL Port Commands
Figure 3-4 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).
A block is a set of consecutive bits associated with the path; each bit belongs to one and only one block.
Consecutive bits may not be contiguous in time.
Table 3-1 Line Performance Counters
LABEL DESCRIPTION
nfebe The number of far end block errors.
ncrc Near end cyclic redundancy checks.
nfecc The number of end forward error correction count.
nfec The number of end forward error count.
nblks The number of blocks transmitted.
nsec The number of seconds the connection has been up.
n-es The number of errored seconds. This is how many seconds contained at least one errored block or at
least one defect.
n-ses The number of severely errored seconds. This is how many seconds contained 30% or more errored
blocks or at least one defect. This is a subset of n-es.
n-uas The number of unavailable seconds.
3.2.7 Set ADSL Profile Command
Syntax:
lcman command 2 lineperf 12
ras>
Current line performance counters:
nfebe-I/nfebe-ni : 0/0
ncrc-I/ncrc-ni : 0/0
nfecc-I/nfecc-ni : 0/0
nfec-I/nfec-ni : 0/0
nblks-ds/nblks-us : 0/0
nsec-ds/nsec-us : 0/0
n-eb-ds/n-eb-us : 0/0
n-bbe-ds/n-bbe-us : 0/0
n-es-ds/n-es-us : 0/0
n-ses-ds/n-ses-us : 0/0
non-ses-blks-ds/non-ses-blks-us : 0/0
n-uas-ds/n-uas-us : 0/0
fe_loss_seconds/ne_loss_seconds : 0/0
fe_fec_seconds/ne_fec_seconds : 0/0
fast_trains : 0
fast_trains_fail : 0