Juniper JUNOSE 11.2.X MULTICAST ROUTING, Configuration Manual

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host1(config)# controller t3 3/2
2.
Configure a specific layer in the interface to generate BERT patterns.
host1(config-controll)# bert pattern 2^11 interval 10
For information about BERT patterns, see “References” on page 50.
bert
•
Use to enable bit error rate tests using the specified pattern on a T3 interface.
•
Unlike other configuration commands, bert is not stored in NVRAM.
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Specify one of the following test patterns:
•
0s —Repetitive test pattern of all zeros, 00000...
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1s —Repetitive test pattern of all ones, 11111...
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2^9 —Pseudorandom test pattern, 511 bits in length
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2^11 —Pseudorandom test pattern, 2047 bits in length
•
2^15 —Pseudorandom test pattern, 32,767 bits in length
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2^20 —Pseudorandom test pattern, 1,048,575 bits in length
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2^20-QRSS —Pseudorandom QRSS test pattern, 1,048,575 bits in length
•
2^23 —Pseudorandom test pattern, 8,388,607 bits in length
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alt-0-1 —Repetitive alternating test pattern of zeros and ones, 01010101...
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Specify the duration of the test in the range 1–1440 minutes.
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Example
host1(config-controll)# bert pattern 2^11 interval 10
•
Use the no version to stop the test that is running.
•
See bert.
Enabling Local, Network, and Payload Loopback
To enable local, network, or payload loopback testing of a T3 or E3 line, use the clock
source and loopback commands from Controller Configuration mode.
1.
Change the clock source to internal.
host1(config-controll)# clock source internal module
2.
Specify a loopback.
host1(config-controll)# loopback local
61 Copyright © 2010, Juniper Networks, Inc.
Chapter 2: Configuring T3 and E3 Interfaces