[Contents]
[Prev]
[Next]
[Index]
[Report an Error]
bert-algorithm
Syntax
- bert-algorithm algorithm;
Hierarchy Level
- [edit interfaces interface-name ds0-options],
- [edit interfaces interface-name e1-options],
- [edit interfaces interface-name e3-options],
- [edit interfaces interface-name t1-options],
- [edit interfaces interface-name t3-options]
Release Information
Statement introduced before JUNOS Release
7.4.
Description
Configure the pattern to send in the bit stream
during a bit error rate test (BERT). Applies to T1, E3, T3, and multichannel
DS3 interfaces, the channelized interfaces (DS3, OC12, STM1), and
channelized IQ interfaces (E1 and DS3).
Options
-
algorithm—Pattern
to send in the bit stream. There are two categories of test patterns:
pseudorandom and repetitive. Both patterns conform to CCITT/ITU O.151,
O.152, O.153, and O.161 standards. The algorithm can be one of the
following patterns:
-
all-ones-repeating—Pattern is all ones.
-
all-zeros-repeating—Pattern is all zeros.
-
alternating-double-ones-zeros—Pattern is
alternating pairs of ones and zeros.
-
alternating-ones-zeros—Pattern is alternating
ones and zeros.
-
repeating-1-in-8—1 bit in 8 is set.
-
pseudo-2e10—Pattern is 210 – 1.
-
pseudo-2e11-o152—Pattern is 211 – 1, as defined in the O152 standard.
-
pseudo-2e15-o151—Pattern is 215 – 1, as defined in the O151 standard.
-
pseudo-2e17—Pattern is 217 – 1.
-
pseudo-2e18—Pattern is 218 – 1.
-
pseudo-2e20-o151—Pattern is 220 – 1, as defined in the O151 standard.
-
pseudo-2e20-o153—Pattern is 220 – 1, as defined in the O153 standard.
-
pseudo-2e21—Pattern is 221 – 1.
-
pseudo-2e22—Pattern is 222 – 1.
-
pseudo-2e23-o151—Pattern is 29 – 1, as defined in the O151 standard.
-
pseudo-2e25—Pattern is 225 – 1.
-
pseudo-2e28—Pattern is 228 – 1.
-
pseudo-2e29—Pattern is 229 – 1.
-
pseudo-2e3—Pattern is 23 – 1.
-
pseudo-2e31—Pattern is 231 – 1.
-
pseudo-2e32—Pattern is 232 – 1.
-
pseudo-2e4—Pattern is 24 – 1.
-
pseudo-2e5—Pattern is 25 – 1.
-
pseudo-2e6—Pattern is 26 – 1.
-
pseudo-2e7—Pattern is 27 – 1.
-
pseudo-2e9-o153—Pattern is 29 – 1, as defined in the O153 standard.
-
repeating-1-in-4—One bit in four is set
to 1; the others are set to 0.
-
repeating-1-in-8—One bit in eight is set
to 1; the others are set to 0.
-
repeating-3-in-24—Three bits in twenty-four
are set to 1; the others are set to 0.
-
Default: pseudo-2e3
Usage Guidelines
See Interface Diagnostics, Configuring E3 BERT Properties, Configuring T1 BERT Properties, Configuring T3 BERT Properties, and Examples: Configuring T3 Interfaces.
Required Privilege Level
interface—To view this statement
in the configuration.
interface-control—To add this statement to
the configuration.
Related Topics
bert-error-rate, bert-period
[Contents]
[Prev]
[Next]
[Index]
[Report an Error]
