ZyXEL Communications MSC1000G - Page 445

Chapter 12 Statistics Screens
Management Switch Card User’s Guide
445
The following table describes the labels in this screen.
Table 212 Port Statistics: DSL Line Card: Line Performance: Current
LABEL DESCRIPTION
Flush Click Flush to clear the counters.
PhysEntry
CurrSnrMgn (dB) These are the DSL line’s current downstream and upstream signal to noise margins in
decibels.
CurrAtn (dB) These are the DSL line’s current downstream and upstream line attenuation in
decibels.
CurrOutputPwr (dBm) These are the DSL line’s current downstream and upstream output powers in
decibels.
CurrAttainableRate These are the DSL line’s current downstream and upstream attainable rates in
decibels.
ChanEntry
ChanInterleaveDelay
(ms)
These are the numbers of milliseconds of interleave delay for downstream and
upstream transmissions.
SlowBurstProtect
(kbps)
This field displays the level of impulse noise (burst) protection for a slow interleaved
channel.
ChanCurrTxRate
(kbps)
These are the DSL line’s current downstream and upstream transmission rates in
decibels.
ChanPrevTxRate
(kbps)
These are the DSL line’s previous downstream and upstream transmission rates in
decibels.
PerfDataEntry
Fecs (seconds)
These are the DSL line’s downstream and upstream numbers of seconds during which
at least one FEC (Forward Error Correction) event that have occurred since the
system last started up.
Lofs (seconds) These are the DSL line’s downstream and upstream numbers of Loss of frame
Seconds that have occurred since the system last started up.
Loss (seconds) These are the DSL line’s downstream and upstream numbers of Loss of signal
Seconds that have occurred since the system last started up.
Lols (seconds) These are the DSL line’s downstream and upstream numbers of Loss of link Seconds
that have occurred since the system last started up.
Lol These are the DSL line’s downstream and upstream numbers of 1-second intervals
containing one or more Loss Of Link (LOL) failures that have occurred since the
system last started up.
Lprs (seconds) These are the DSL line’s downstream and upstream numbers of Loss of power
Seconds that have occurred since the system last started up.