Sending Bert Patterns - Juniper JUNOSE 11.2.X PHYSICAL LAYER Configuration Manual

JunosE 11.2.x Physical Layer Configuration Guide

Sending BERT Patterns

path ds1|e1 bert
path ds3 bert
140
The router can send BERT patterns from different layers in the interface stack. For a list
of the modules that support bit error rate tests (BERTs), see ERX Module Guide, Appendix
A, Module Protocol Support.
To send BERT patterns:
Select a controller.
1.
Configure a specific layer in the interface to generate BERT patterns.
2.
For information about BERT patterns, see "References" on page 113.
Use to enable bit error rate tests using the specified pattern at the T1/E1 over
SONET/SDH VT layer.
Unlike other configuration commands, "path ds1|e1 bert" on page 140 is not stored in
NVRAM.
Specify one of the following options:
2^11—Pseudorandom test pattern, 2047 bits in length
2^15—Pseudorandom test pattern, 32,767 bits in length
2^20-O153—Pseudorandom test pattern, 1,048,575 bits in length
Specify the duration of the test in the range 1–1440 minutes.
Optionally, specify the unframed keyword to overwrite the framing bits.
Example
host1(config-controll)#path 12 ds1 1/3/4 bert pattern 2^11 interval 10 unframed
Use the no version to stop the test that is running.
See path ds1|e1 bert.
Use to enable bit error rate tests using the specified pattern at the T3 layer.
Unlike other configuration commands, "path ds3 bert" on page 140 is not stored in
NVRAM.
Specify one of the following options:
0s—Repetitive test pattern of all zeros, 00000...
1s—Repetitive test pattern of all ones, 11111...
2^9—Pseudorandom test pattern, 511 bits in length
2^11—Pseudorandom test pattern, 2047 bits in length
2^15—Pseudorandom test pattern, 32,767 bits in length
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