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NOTE: Remote loopback is available only on frame-based T3 interfaces configured
to use C-bit framing.
path ds3 loopback remote
NOTE: Remote loopback is available only on frame-based T3 interfaces configured
to use C-bit framing.
path ds3 t1 loopback remote
Use to enable or disable the router's ability to enter into a loopback initiated by
a remote device connected at the T3 layer.
Specify one of the following loopback options:
customer Enables the router to enter into loopback when it receives an
appropriate signal from the remote interface
network Disables the router's ability to enter into loopback when it receives
an appropriate signal from the remote interface; this is the default behavior
Examples
host1(config-controll)#path 12 ds3 2 equipment customer loopback
host1(config-controll)#path 12 ds3 2 equipment network loopback
Use the no version to restore the default behavior, which disables the router's
ability to be placed in loopback by a remote device. Using the no version has
the same effect as issuing the command with the network keyword.
See path ds3 equipment loopback.
Use to place a remote device, connected at the T3 layer, in loopback.
Specify the remote keyword to send a far end alarm code in the C-bit framing,
as defined in ANSI T1.404, to notify the remote end to activate or (when you
use the no version) deactivate the line loopback.
Example
host1(config)#controller sonet 5/0
host1(config-controll)#path 12 ds3 1 loopback remote
Use the no version to turn off the loopback.
See path ds3 loopback.
Use to place a remote device, connected at the T1 over T3 layer, in loopback.
Specify one of the following options:
line fdl ansi Sends a repeating 16-bit ESF data link code word (00001110
11111111) to the remote end requesting that it enter into a network line
Chapter 4: Configuring Channelized OCx/STMx Interfaces
Testing Interfaces
151
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