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2-66 Command Line Interface Commands Reference
Bipolar Violation Count 001
#show interface t1 1 errors current
Current Interval elapsed time 02:45
Errored Seconds 002
Unavailable Seconds 000
Severely Errored Seconds 001
Bursty Errored Seconds 001
Loss of Frame Count 000
Bipolar Violation Count 000
interface t1 id diagnostic mode { local loopback | normal | remote loopback |
send { all ones | blue alarm | loopback } }
show interface t1 id diagnostic mode
This command sets or displays the diagnostic mode for the specified T1 interface. Specifying local loopback
puts the near end in local payload loopback mode. Specifying remote loopback instructs the far end to put
itself in payload loopback mode. Specifying send all ones or send blue alarm (which are synonyms) causes the
near end to start sending an all-ones pattern, which puts the far end in the red alarm state, causing it to send
back a yellow alarm. Specifying send loopback causes the near end to begin sending loopback packets.
Specifying normal cancels the effect of any previous diagnostic mode command.
After issuing the diagnostic mode send loopback command, the loopback progress can be monitored by
issuing the loopback status command (see below).