ZyXEL Communications MSC1000G User Manual page 446

Chapter 12 Statistics Screens
Table 212 Port Statistics: DSL Line Card: Line Performance: Current (continued)
LABEL
Lpr
Es (seconds)
Ses (seconds)
Uas (seconds)
FulInit
FailFulInit
ChanPerfDataEntry
CorrectedBlks
UnCorrectedBlks
CodeViolations
RtxCw
RtxCorrectedCw
RtxUncorrectedCw
Leftrs (seconds)
MinEftr (kbps)
ErrFreeBits
InmPerfDataEntry
EQINP[1]~EQINP[17]
IAT[0]~IAT[7]
Symbols
Poll Interval(s)
Stop
446
DESCRIPTION
These are the DSL line's downstream and upstream numbers of 1-second intervals
containing one or more PoweR (LPR) failures that have occurred since the system last
started up.
These are the DSL line's downstream and upstream numbers of Errored Seconds that
have occurred since the system last started up.
This is 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 Es.
This is the number of Unavailable seconds (Uas).
These are the DSL line's downstream and upstream numbers of initialization traps
that have occurred since the system last started up.
These are the DSL line's downstream and upstream numbers of initialization failure
traps that have occurred since the system last started up.
These are the numbers of corrected blocks for downstream and upstream
transmissions since the system last started up.
These are the numbers of uncorrected blocks for downstream and upstream
transmissions since the system last started up.
These are the numbers of Code Violation (incorrect cyclic redundancy check) that
have occurred since the system last started up.
These are the numbers of RS (Reed-Solomon) codewords or DTUs (Data Transfer
Units) retransmitted through PhyR or G.INP retransmissions since the system last
started up.
These are the numbers of RS codewords or DTUs that have been corrected through
PhyR or G.INP retransmissions since the system last started up.
These are the numbers of RS codewords or DTUs that were not corrected successfully
through PhyR or G.INP retransmissions since the system last started up.
These are the numbers of seconds during which the Error Free Throughput went
below the pre-configured threshold since the system last started up.
These are the lowest value of the Error Free Throughput since the system last started
up.
These are the numbers of bits that passed through the alpha1/beta1 interface (bits
that are available to carry user data payload) since the system last started up.
EQINP[i] is used to compute equivalent INP anomaly and it is actually equivalent to (i
DMT symbols. For example, EQINP[17] means 17 equivalent INP anomalies and it
also means there are more than 16 DMT symbols.
The EQINP histogram shows the level of INP required to prevent data errors.
IAT[i] is used to compute the inter-arrival time which falls in the range from
(IATO+(i-1)*2^(IATS)) to ((IATO-1)+i*2^(IATS)).
IATO indicates inter-arrival time offset while IATS indicates inter-arrival time step.
They are used to determine in which bin (category) of the IAT histogram the IAT is
reported. The IAT histogram shows time intervals between the impulse noise events.
These are the numbers of DMT symbols the impulse noise protection sensor has
inspected since the system last started up.
The text box displays how often (in seconds) this screen refreshes. You may change
the refresh interval by typing a new number in the text box and then clicking Set
Interval.
Click Stop to stop port statistic polling.
Management Switch Card User's Guide