Juniper JUNOS 10.1 - CONFIGURATION GUIDE 1-2010 Configuration Manual page 217

NOTE: The 4-port E1 PIC supports only the following algorithms:
pseudo-2e11-o152 Pattern is 2^11 -1 (per O.152 standard)
pseudo-2e15-o151 Pattern is 2^15 - 1 (per O.151 standard)
pseudo-2e20-o151 Pattern is 2^20 - 1 (per O.151 standard)
pseudo-2e23-o151 Pattern is 2^23 (per O.151 standard)
When you issue the command from the CLI, all BERT algorithm options are
help
displayed, regardless of the PIC type, and no commit check is available. Unsupported
patterns for a PIC type can be viewed in system log messages.
NOTE: The 12-port T1/E1 Circuit Emulation (CE) PIC supports only the following
algorithms:
all-ones-repeating Repeating one bits
all-zeros-repeating Repeating zero bits
alternating-double-ones-zeros
alternating-ones-zeros
pseudo-2e11-o152 Pattern is 2^11 -1 (per O.152 standard)
pseudo-2e15-o151 Pattern is 2^15 - 1 (per O.151 standard)
pseudo-2e20-o151 Pattern is 2^20 - 1 (per O.151 standard)
pseudo-2e7 Pattern is 2^7 - 1
pseudo-2e9-o153 Pattern is 2^9 - 1 (per O.153 standard)
repeating-1-in-4 1 bit in 4 is set
repeating-1-in-8 1 bit in 8 is set
repeating-3-in-24 3 bits in 24 are set
When you issue the command from the CLI, all BERT algorithm options are
help
displayed, regardless of the PIC type, and no commit check is available. Unsupported
patterns for a PIC type can be viewed in system log messages.
NOTE: The IQE PICs support only the following algorithms:
all-ones-repeating Repeating one bits
all-zeros-repeating Repeating zero bits
alternating-double-ones-zeros
alternating-ones-zeros Alternating ones and zeros
pseudo-2e9-o153 Pattern is 2^9
pseudo-2e11-o152 Pattern is 2^11 -1 (per O.152 and O.153 (2047 type) standards)
pseudo-2e15-o151 Pattern is 2^15 -1 (per O.151 standard)
pseudo-2e20-o151 Pattern is 2^20 -1 (per O.151 standard)
pseudo-2e20-o153 Pattern is 2^20 -1 (per O.153 standard)
pseudo-2e23-o151 Pattern is 2^23 -1 (per O.151 standard)
repeating-1-in-4 1 bit in 4 is set
repeating-1-in-8 1 bit in 8 is set
repeating-3-in-24 3 bits in 24 are set
When you issue the command from the CLI, all BERT algorithm options are
help
displayed, regardless of the PIC type, and no commit check is available. Unsupported
patterns for a PIC type can be viewed in system log messages.
Chapter 3: Configuring Physical Interface Properties
Alternating pairs of ones and zeros
Alternating ones and zeros
Alternating pairs of ones and zeros
-1 (per O.153 (511 type) standard)
147
Interface Diagnostics