Verilink QPRI 2921 (880-503143-001) Product Manual - Manual (Page 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 E
NTER to exit these screens.
Net Port Alarm
Threshold Status
Menu
Enter T 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.
Mn Loss of Frame Counts: An accumulation of the number of times a Loss-Of-Frame alarm is
declared.
Zn 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.
Qn 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.
Hn 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.
Jn Degraded Minutes (DM): This error occurs when the Bit Error Rate (BER) threshold of 10 -6 is
exceeded in a 60 second period.
In Error Free Seconds: A second with no detected errors.
Rn Reset Registers: Use this option to clear out all counts and reset all registers to zero for a
particular port.
X 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