Supported Platforms
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. | |
Stop a BERT on a DS0 interface. | |
Start a BERT on an E1 interface. | |
Stop a BERT on an E1 interface. | |
Start a BERT on an E3 interface. | |
Stop a BERT on an E3 interface. | |
Transmit over a facilities data link (FDL) to initiate or terminate a far-end line loopback. | |
Transmit over an FDL to initiate or terminate a far-end payload loopback. | |
Transmit the line loopback activate code word sequence on the interface's far-end alarm and control (FEAC) channel. | |
Transmit the line loopback deactivate code word sequence on the interface's FEAC channel. | |
Initiate or terminate a far-end line loopback. | |
Initiate or terminate a far-end payload loopback. | |
Restart auto-negotiation on a Fast Ethernet or Gigabit Ethernet interface. | |
Start a BERT on a T1 interface. | |
Stop a BERT on a T1 interface. | |
Start a BERT on a T3 interface. | |
Stop a BERT on a T3 interface. |
 | Note: For information about how to configure interface test parameters, see the Junos OS Network Interfaces Library for Routing Devices. For information about related tasks performed by network operations center (NOC) personnel, see the Junos Interfaces Network Operations Guide. |
