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LTPH-UM-1031-03, Issue 3 Monitoring System Activity and Performance
H4TU-C-319 List 1 September 12, 2003 31
Table 9. Acronyms Used on the DS1 Performance History Screens
Acronym Description Acronym Description
CV-L Code Violation - Line
Total BPV count.
SES-P Severely Errored Seconds - Path
Seconds with SES or CRC(ESF) ≥320 or
FE
(a)
(SF) ≥8 (F
T
+ F
S
).
(a) FE is a frame bit error.
ES-L
(b)
(b) Line (L) refers to the AMI DS1 line used to transport the payload.
Errored Seconds - Line
Seconds with BPV ≥1.
UAS-P Unavailable Seconds - Path
A second of unavailability based on SES-P or
AIS ≥1.
SES-L Severely Errored Seconds - Line
Seconds with BPV plus EXZ ≥1544 or LOS ≥1.
PRM-NE
(c)
(c) Only displays on H4TU-R Performance History screens.
Performance Report Messaging - Near End
The PRM from CPE indicates errors, and the
signal received from the network at the
remote is error-free.
UAS-L Unavailable Seconds - Line
Seconds with LOS ≥1.
PRM-FE
(c)
Performance Report Messaging - Far End
The PRM from the network indicates errors,
and the signal received from the CPE is
error-free.
CV-P Code Violation - Path
Total count of SF frame bit (FB) errors or
CRC(ESF) errors.
B8ZSS
(d)
(d) Displays on the DS1 Current Statistics screens.
B8ZS Errored Seconds
Seconds with B8ZS detection when AMI
option is active.
ES-P
(e)
(e) Path (P) refers to the total framed payload being transported between two points.
Errored Seconds - Path
Seconds with SEF
(f)
, CRC (ESF), or
FE
(a)
(SF) ≥1.
(f) Severely Errored Frame–Two or more frame bit errors occurring in a 0.75 ms interval for SF or a 3 ms interval for ESF.
MSEC
(d)
Monitored Seconds of the current
(15-minute/1-hour/1-day) screen.