Command introduced before JUNOS Release 7.4.
Start a bit error rate test (BERT) on a T3 interface.
interface-name — Interface name: t3-fpc/pic/port or ct3-fpc/pic/port <:channel>.
Before starting a BERT, you must disable the interface. To do this, include the disable statement at the [edit interfaces interface-name] hierarchy level. You can run a BERT on only one interface per PIC at a time.
To display the results of the BERT, use the show interfaces extensive command.