Juniper JUNOSE 11.2.X MULTICAST ROUTING, Configuration Manual

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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
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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 2^15 interval 20
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Use the no version to stop the test that is running.
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See bert.
equipment loopback
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Use to enable or disable the router’s ability to enter into a loopback initiated by a remote
device connected on a channelized T3 interface.
NOTE: Remote loopback is available only on channelized T3 interfaces configured to
use C-bit framing.
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Specify one of the following loopback options:
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customer —Enables the router to enter into loopback when it receives an appropriate
signal from the remote interface
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network —Disables the router’s ability to enter into loopback when it receives an
appropriate signal from the remote interface
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Examples
host1(config-controll)# equipment customer loopback
host1(config-controll)# equipment network loopback
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Use the no version to disable the router’s ability to be placed in loopback by the remote
device.
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See equipment loopback.
loopback
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Use to configure a loopback.
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Specify one of the following loopback options.
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local —Loops the data back toward the router; on supported line modules, also sends
an alarm indication signal (AIS) out toward the network
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network —Loops the data toward the network before the framer processes the data
Copyright © 2010, Juniper Networks, Inc. 24
JunosE 11.2.x Physical Layer Configuration Guide