ADC Release 3.1 user manual Bits

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

MONTYPE

DLP-729

Page 4 of 4

Table 729-1. T1 Multi 1 CRS Performance Monitoring Values, continued

MAX 15 MIN.	COMMENTS
THRESHOLD
	AAL 1 LAYER

Stuffing Cells

Congestion Lost Cells

AAL1 Sequence Errors

Lost Cells

Buffer

Overflow

Buffer

Underflow

9900

32BITS

31BITS

31BITS

900

Indicates a count of AIS cells inserted into the data stream for stuffing purposes in a 15-minute interval.

Indicates a count of cells discarded in a 15-minute interval.

A count of “Out of Sequence” transitions in a 15-minute interval.

A count of cells lost in a 15-minute interval.

Indicates a count of buffers that have overflowed in a 15-minute period.

Indicates a count of buffers that have under flowed in a 15-minute period.

ATM / TC

Suspect

Supp

Hdr Errs

OAM Rcvd

In Cells

Out Cells

HEC Viols

OCDs

1

3695745

3695745

3695745

3695745

3695745

3695745

900

Suspect defines counts that are suspected to have errors but may have been reset to zero by a user during the reporting period.

Suppressed intervals flag indicates that there was no data to report for an interval (all counts are zero). This saves the user from having to look at a bunch of zeros and also reduces the size of the PM data files.

Sets a count of errors in the ATM header that the system can incur before notifying the system administrator.

A count of Operation, Administration, and Maintenance cells received in a 15-minute period, used for testing purposes such as loopback request codes.

A total count of all of the cells that have been received on an interface. This is for user information and not configurable.

A total count of all of the cells that have been transmitted out from an interface. This is for user information and is not configurable.

Sets a count of Header Error Checksum violations that the system can incur before notifying the system administrator.

Sets a count of Out of Cell Delineation anomalies that the system can incur before notifying the system administrator.

*BPV (Bi-Polar Violation) = Occurrence of pulses of same polarity as the previous pulse except as part of the B8ZS substitution code.

*ExZ (Excessive Zero) = Occurrence of any zero string greater than “N” contiguous zeros, where “N” = 7 for B8ZS or 15 for AMI (Alternate Mark Inversion).

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