Verilink QPRI 2921 (880-503143-001) Product Manual Instrukcja Użytkownika Pobierz pdf (Strona 60)

Configuring the QPRI 2921 Via the NCM 2000 Craft Interface

3-26 Verilink QPRI 2921

When one of these options is selected, the previous 24 hour data is

displayed in 15 minute increments for a total of 96 blocks of time.

Press

NTER

to exit these screens.

Net Port Alarm

Threshold Status

Enter

from the

Performance/Status Menu

, Figure 3-17, to access

the

Net Port Alarm Threshold Status Menu

, Figure 3-19. This

screen shows the threshold intervals set in the

Net Port Alarm

Threshold Configuration Menu

, Figure 3-22.

It also displays the counts for each type of alarm. When the alarm

count exceeds its threshold value set in the

Net Port Alarm

Threshold Configuration Menu

, a “Y” displays after the count.

Loss of Frame Counts: An accumulation of the number of times a Loss-Of-Frame alarm is

declared.

AIS/SEF Seconds: Displays information on the AIS and SEF errors.

AIS: An unframed All-Ones bit pattern that indicates that an alarm condition exists upstream

in a circuit leading to the downstream equipment. This is also called an All-Ones Keep-Alive or

Blue Alarm Signal.

SEF: The seconds in which two or more framing bit errors occur within a 3-millisecond period.

In ESF mode, this interval may or may not coincide with an ESF multiframe.

Errored Seconds Type A: This error occurs when one Code Violation Path (CV-P) error and no

AIS defects occur in a second. Controlled Slips are not included in this parameter.

Frame Bit Error (FE): An error in the received framing bit pattern and the number of whole

seconds that a framing bit error has occurred.

Degraded Minutes (DM): This error occurs when the Bit Error Rate (BER) threshold of 10

-6

exceeded in a 60 second period.

Error Free Seconds: A second with no detected errors.

Reset Registers: Use this option to clear out all counts and reset all registers to zero for a

particular port.

Exit this screen—Exits the Performance/Status Menu (24hr T1 Performance Data Summary)

and returns to the Performance/Status Menu, Figure 3-17.

Command Description

1 2 ... 55 56 57 58 59 60 61 62 63 64 65 ... 84 85

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