test interface fdl-line-loop
Syntax
Release Information
Command introduced before Junos OS Release 7.4.
Description
Send commands over the facilities data link (FDL) on a T1 interface to initiate or terminate a far-end line loopback using either an ANSI or Bellcore FDL command code. If the far end of the connection is in C-bit parity mode and it has been configured to accept line loopback requests from the near end, the far end executes the request. See the ANSI T1.107 specification for more details.
 | Note: The following restrictions apply to this command:
|
Options
ansi | — | ANSI FDL command code. |
bellcore | — | Bellcore FDL command code. |
initiate | — | Initiate the far-end line loopback. |
terminate | — | Terminate the far-end line loopback. |
t1-fpc/pic/port <:channel> | — | Name of a T1 interface. The channel number indicates a channelized interface. |
Required Privilege Level
view
List of Sample Output
test interface fdl-line-loopOutput Fields
To display the state and the number of times the interface has placed itself into remote loopback, use the show interfaces extensive command.
Sample Output
test interface fdl-line-loop
user@host> test interface fdl-line-loop ansi
initiate t1-1/0/0
