Juniper-networks M7I Manual de usuario Pagina 58

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Flexible Frame Relay
Frame Relay
Frame Relay for CCC
Frame Relay for TCC
Frame Relay port CCC
High-Level Data Link Control (HDLC)
HDLC framing for CCC
HDLC framing for TCC
MPLS CCC
MPLS TCC
Multilink Frame Relay (MLFR) UNI NNI (MFR FRF.16)
Point-to-Point Protocol (PPP)
PPP for CCC
PPP for TCC
Standard DS3 BNC coaxial cable interfacesCables and connectors
One tricolor per port:
Off—Not enabled
Green—Online with no alarms or failures
Yellow—Online with alarms for remote failures
Red—Active with a local alarm; router has detected a failure
LEDs
DS3 alarms:
Alarm indication signal (AIS)
Loss of frame (LOF)
Loss of signal (LOS)
Phase lock loop (PLL)
Yellow alarm
DS3 error detection:
C-bit code violations (CCV)
C-bit errored seconds (CES)
C-bit severely errored framing seconds (CEFS)
CRC errors
Excessive zeros (EXZ)
Far-end block error (FEBE)
Far-end receive failure (FERF)
Line errored seconds (LES)
Parity bit (P-bit) code violations (PCV)
Parity bit (P-bit) errored seconds (PES)
Parity bit (P-bit) severely errored framing seconds (PSES)
Severely errored framing seconds (SEFS)
Unavailable seconds (UAS)
Alarms, errors, and
events
Layer 2 per-queue and per-channel packet and byte countersInstrumentation
(counters)
Copyright © 2010, Juniper Networks, Inc.58
M7i Multiservice Edge Router PIC Guide
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