ADC Release 3.1 User Manual

Page 476

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1152700

Issue 1

February 2001

Section 2 Operations and Maintenance

Page 2-432
© 2000, ADC Telecommunications, Inc.

TAP-100

Page 13 of 23

Table 4-1. Alarm Identifications, continued

ALARM
MESSAGE

SEVERITY

IMPACT

DESCRIPTION

SUGGESTED COURSE OF ACTION

Out Of
Cell
Delineation
Threshold
Crossing
Alert

OCDThresh
oldExceede
d

Information
al Alert

Installation
Error

Can indicate line
degradation.

Could be caused by a port
failure at any ATM interface.
Verify the port is online, check
configuration, look for
indications of high BER (Bit
Error Rate), increase threshold
settings if necessary, use line
loopback to troubleshoot path
through port.

Path
Coding
Violations
Threshold
Crossing
Alert

PCVTca

Information
al Alert

Service
Degradation

T3 P-bit coding violations
threshold crossing alert.

Path code violations indicate a
parity mismatch in the SONET
or DSX path.

Examine the

physical circuit to determine

if

there are any impairments.

Payload
Label
Mismatch
Path

PLM-P

Minor

Installation
Error

Traffic in payload does not
match what the payload
label in the path layer
expected.

Check input source type and
change payload label if
needed.

P-bit
Errored
Seconds
Threshold
Crossing
Alert

PESTca

Information
al Alert

Service
Degradation

T3 P-bit errored seconds
threshold crossing alert. A
one second interval in the
transmission from the far
end originating NE has had
excessive parity errors.
PES errors have exceeded
the user definable threshold
level.

Parity bits on the incoming
DS3 line. The transmitted
signal does not match the
received signal

.

P-bit
Severely
Errored
Seconds
Threshold
Crossing
Alert

PSESTca

Information
al Alert

Service
Degradation

T3 P-bit Severely Errored
Seconds (SES) threshold
crossing alert. Excessive
one second intervals in the
transmission from the far
end originating NE have
had Parity bit errors. P-Bit
SES errors have exceeded
the user definable threshold
level.

Parity bits on the incoming
DS3 line. The transmitted
signal does not match the
received signal

at an error rate

of 1.6E-5 or worse for a period
of time less than ten seconds.

(continued)

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