Juniper Networks Juniper M-series M10i - Manual (Page 19)

One tricolor per port:
■ Off—Not enabled
■ Green—Online with no alarms or failures
■ Amber—Online with alarms for remote failures
■ Red—Active with a local alarm; router has detected a failure
LEDs
■ Alarm indication signal (AIS)
■ Excessive zeros (EXZ)
■ Far-end block error (FEBE)
■ Frame error
■ Idle code, Idle received
■ Line code violation (LCV)
■ Loss of signal (LOS)
■ Out of frame (OOF)
■ Parity bit (P-bit) disagreements
■ Path parity error
■ Yellow alarm bit (X-bit) disagreements
Alarms, errors, and
events
■ Layer 2 per-queue and per-channel packet and byte counters Instrumentation
(counters)
Channelized DS3 IQ PIC ■ 19
Channelized DS3 IQ PIC