EXFO FTB-8100 Series Transport Blazer for FTB-200 - Manual (Page 277)

SDH Tabs
SONET/SDH Application 265
Multiplex Section RX (SDH)
For STM-64: The MS-REI error is declared when either the M1 byte
located in the timeslot #7 (STM-1 channel 3) indicates that one or
more BIP violations have been detected, or the combination of the M0
and M1 bytes indicates that one or more BIP violations have been
detected. Refer to OC-192/STM-64 REI-L/MS-REI on page 386 for MS-REI
computation method.
M1 Indicates
0000 0000 0 BIP violation
0000 0001 1 BIP violation
0000 0010 2 BIP violations
: :
1111 1111 255 BIP violations
M0
Located in STM-1
channel 2 (timeslot #4)
M1
Located in STM-1
channel 3 (timeslot #7)
Indicates
0000 0000 0000 0000 0 BIP violation
0000 0000 0000 0001 1 BIP violation
0000 0000 0000 0010 2 BIP violations
: :
0000 0110 0000 0000 1536 BIP violations
0000 0110 0000 0001 0 BIP violation
: :
1111 1111 1111 1111 0 BIP violation