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182 A
PPENDIX
J: P
ERFORMANCE
M
ONITORING AND
L
OOPBACK
S
UPPORT ON
U
LTRA
WAN C
ONNECTORS
The statistics definitions are as follows:
ES - Errored Second = A second in which a OOF (Out of Frame) or CRC
(Cyclic Redundancy Check error) occured and a UAS has not occured.
SES - Severely Errored Second = A second in which a OOF or greater than
319 CRCs occured and a UAS has not occured.
UAS - UnAvailable Second = A second in which all of the previous 10
contiguous one-seconds were all SES or in which any of the previous 10
contiguous one-seconds were UAS and any of the previous 10
contiguous one-seconds were SES.
BES - Bursty Errored Second = A second in which more than 1, but less
than 320 CRCs occured and a UAS (see above) has not occured.
CSS - Controlled Slip Errored Second = a second in which a CoFA
(Change of Frame Alignment) occured.
LOFC - Loss Of Frame Count = number of times a OOF occurs.
EFS - Error Free Second = a second in which none of ES, SES, or UAS
occured.
ConnCouNTers
Syntax
SHow [!<path>] -PAth ConnCouNTers
Default
No Default
Description
This parameter displays the primitive line statistics of the E1/T1 line. The
statistics are collected in 96 sample intervals (15 minute samples for the
last 24 hour period) and are collected for each UltraWAN CSU/DSU
interface. The display will show the cumulative number of events since
the last FLUSH command (see below) or ReBoot command was issued
and the 96 15-minute intervals, covering the last 24 hour period.