R0106-HP MSR Router Series Interface Command Reference(V7)

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Table 21 Possible output error types
Field Description
FRED Receive loss of basic frame alignment, or receive frames with red alarm errors.
COFA Change of frame alignment.
SEF
Severely error frame. Four consecutive frame synchronization errors generate one
SEF.
FERR Framing Bit Error. It refers to frames with the Ft/Fs/FPS/FAS error.
CERR CRC error.
FEBE
Far end block error. This occurs when the CRC4 framing format applies on the E1
channel.
BERR PRBS bit error (pseudo-random binary sequence bit error, for test only).
BIP Bit-interleaved parity.
REI Remote error indication.
In this table, FRED, COFA, and SEF are called alarm errors (AERRs).
Examples
# Display CPOS 2/4/0 status information.
<Sysname> display controller cpos 2/4/0
Cpos2/4/0
Current state: DOWN
Description : Cpos2/4/0 Interface
Frame-format SDH,multiplex AU-4,clock master,loopback none
SD threshold: 6, SF threshold: 3
Optical:Absent
Regenerator section:
Tx: J0:"" (HEX: )
Rx: J0:"" (HEX: )
Alarm: LOS LOF OOF
Error: 0 RS_BIP
Multiplex section:
Alarm: MS_AIS MS_SF MS_SD
Error: 0 MS_BIP , 0 MS_REI
Higher order Path (VC-4-1):
Tx: J1:"", C2:0x02, S1S0:0x02
Rx: J1:"", C2:0x6d, S1S0:0x02
Alarm: HP_TIU HP_RDI HP_ERDI HP_PLM
Error: 0 HP_BIP, 0 HP_REI, 0 HP_PJE, 0 HP_NJE
CT1 1 is down
Frame-format: ESF, clock: slave, loopback: none
CT1 2 is down