Technical Documentation

Interface Diagnostics Operational Mode Commands

Table 1 summarizes the command-line interface (CLI) commands you can use to run diagnostics on router interfaces. Commands are listed in alphabetical order.

Table 1: Interface Diagnostics Operational Mode Commands

Task

Command

Start a bit error rate test (BERT) on a DS0 interface.

test interface ds0-bert-start

Stop a BERT on a DS0 interface.

test interface ds0-bert-stop

Start a BERT on an E1 interface.

test interface e1-bert-start

Stop a BERT on an E1 interface.

test interface e1-bert-stop

Start a BERT on an E3 interface.

test interface e3-bert-start

Stop a BERT on an E3 interface.

test interface e3-bert-stop

Transmit over a facilities data link (FDL) to initiate or terminate a far-end line loopback.

test interface fdl-line-loop

Transmit over an FDL to initiate or terminate a far-end payload loopback.

test interface fdl-payload-loop

Transmit the line loopback activate code word sequence on the interface's far-end alarm and control (FEAC) channel.

test interface feac-loop-initiate

Transmit the line loopback deactivate code word sequence on the interface's FEAC channel.

test interface feac-loop-terminate

Initiate or terminate a far-end line loopback.

test interface inband-line-loop

Initiate or terminate a far-end payload loopback.

test interface inband-payload-loop

Restart auto-negotiation on a Fast Ethernet or Gigabit Ethernet interface.

test interface restart-auto-negotiation

Start a BERT on a T1 interface.

test interface t1-bert-start

Stop a BERT on a T1 interface.

test interface t1-bert-stop

Start a BERT on a T3 interface.

test interface t3-bert-start

Stop a BERT on a T3 interface.

test interface t3-bert-stop

Note: For information about how to configure interface test parameters, see the JUNOS Network Interfaces Configuration Guide. For information about related tasks performed by network operations center (NOC) personnel, see the JUNOS Interfaces Network Operations Guide.


Published: 2010-04-28