Verilink DPRI 2922 (880-503142-001) Product Manual - Manual (Page 61)

Configuring the DPRI 2922 Via the NCM 2000 Craft Interface
Verilink DPRI 2922
3-31
Performance /
Status Menu
(24hr T1
Performance
Data Summary)
Select P for “display performance data” from the
Performance/Status Menu, Figure 3-21, to access the
Performance/Status Menu (24hr T1 Performance Data
Summary), Figure 3-22.
Figure 3-22 Performance/Status Menu (24hr T1 Performance Data Summary)
C Display counters—displays the Counter Menu, Figure 3-24, Table 3-20.
Counts the number of BPV, FE, ESF, and CRC errors:
Bipolar Violations (BPV): A violation of the T1 bipolar alternate mark inversion transmission
pattern in which consecutive ONEs (pulses) are erroneously transmitted as pulses of like
polarities. Bipolar violations normally indicate transmission errors.
Frame Bit Error (FE): The number of whole seconds in which a framing bit error has been
received.
Extended Superframe Format (ESF): This is the AT&T T1 framing standard that provides
frame synchronization, cyclic redundancy check, data checking, and link bits. This counter is
only available in ESF mode.
Cyclic Redundancy Check (CRC): An error-checking algorithm performed on data
transmissions. On a frame-by-frame basis, a numerical value is derived from the data in the
bit stream at one end of transmission. When each frame reaches the receive end, the cyclic
redundancy check is calculated again and compared with the value generated by the
transmit-side data. Discrepancies can indicate one or more transmission errors. This counter
is only available in ESF mode.
Options are:
Rn—Reset counters, which resets the counter for the indicated port number.
X—Exit this screen, which returns you to the Performance/Status Menu.
X Exit the Performance/Status Menu—Returns to the Main Menu, Figure 3-1, Table 3-2.
Command Description
[0.0.0.5] [1,2] DPRI 2922 > p
-- DPRI 2922 PERFORMANCE/STATUS MENU --
24hr T1 Performance Data Summary
ES BES SES UAS LOF LOSS AISS
PORT 1 0 0 1 81342 81340 0 68284
PORT 2 0 0 0 81361 81359 81361 0
En) Errored Seconds Un) Unavailable Seconds
Bn) Bursty Seconds Sn) Severely Errored Seconds
Ln) LOS Seconds Fn) SEF Seconds
Dn) LOF Seconds On) OOF Seconds
An) AIS Seconds Cn) Controlled Slip Seconds
Mn) Loss of Frame Counts Zn) AIS/SEF Seconds
Qn) Errored Seconds Type A Hn) Frame Errors
Jn) Degraded Minutes In) Error Free Seconds
Rn) Reset Registers X) exit this screen
[0.0.0.5] [1,2] DPRI 2922 >