R2511-HP MSR Router Series Interface Command Reference(V5)

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Field Description
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 the path information of CPOS 4/0.
<Sysname> display controller cpos 4/0
Cpos4/0 current state: DOWN
Description : Cpos4/0 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
High 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
Frame-format: ESF, clock: slave, loopback: none
CT1 3 is down
Frame-format: ESF, clock: slave, loopback: none
…
CT1 83 is down