Juniper Networks Juniper M-series M10i User Manual

Page 35

One tricolor per port:

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Off—Not enabled

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Green—Online with no alarms or failures

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Amber—Online with alarms for remote failures

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Red—Active with a local alarm; router has detected a failure

LEDs

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Alarm indication signal (AIS)

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Bipolar violations

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Excessive zeros

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Far-end block errors (FEBE, E-bit errors)

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Loss of frame (LOF), Loss of signal (LOS)

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Local and remote loopback diagnostics

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Yellow alarm bit (X-bit) disagreements

Alarms, errors, and
events

E1 PIC

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E1 PIC