ADC Release 3.1 Out Cell Delineation Threshold Crossing Alert, Payload Label Mismatch Path, Plm-P

1152700• Issue 1 • February 2001 • Section 2 Operations and Maintenance

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

Payload

Label

Mismatch

Path

PLM-P

Information al Alert

Minor

Service Degradation

Installation Error

T3 P-bit coding violations threshold crossing alert.

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

Path code violations indicate a parity mismatch in the SONET or DSX path. Examine the physical circuit to determine if there are any impairments.

Check input source type and change payload label if needed.

P-bit	Information	Service
Errored	al Alert	Degradation
Seconds
Threshold
Crossing
Alert
PESTca
P-bit	Information	Service
Severely	al Alert	Degradation
Errored
Seconds
Threshold
Crossing
Alert
PSESTca

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© 2000, ADC Telecommunications, Inc.

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.

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.

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)