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test interface inband-payload-loop

Syntax



test interface inband-payload-loop (ansi  (initiate | terminate)
| bellcore (initiate | terminate) t1-fpc/pic/port<:channel>)

Release Information

Command introduced before JUNOS Release 7.4.

Description

Send commands on a T1 interface to initiate or terminate a far-end payload loopback using either an ANSI or Bellcore FDL command code. If the far end of the connection is in C-bit parity mode and has been configured to accept payload loopback requests from the near end, the far end executes the request.

Note: The following restrictions apply to this command:

On Channelized DS3-to-DS1 and Multichannel DS3 PICs, this command can only be initiated by T1 interfaces. These types of T1 interfaces cannot accept a request for this test sent by another router.
This command is not supported on the 4-port T1 PIC.

Options

ansi — ANSI FDL command code.

bellcore — Bellcore FDL command code.

initiate — Initiate the far-end payload loopback.

terminate — Terminate the far-end payload loopback.

t1-fpc/pic/port<:channel> — Name of a T1 interface. The channel number indicates a channelized interface.

Additional Information

See the ANSI T1.107 specification for more details.

Required Privilege Level

view

List of Sample Output

test interface inband-payload-loop

Output Fields

To display the state and the number of times the interface has placed itself into remote loopback, use the show interfaces extensive command.

test interface inband-payload-loop

user@host> test interface inband-payload-loop
ansi initiate t1-1/0/0

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