Juniper Networks M120 manual Optical Interface Support for ATM2 OC12/STM4 IQ PICs

M120 Internet Router PIC Guide

Software features	■ Circuit cross-connect for leveraging ATM access networks
	■ User-configurable virtual circuit (VC) and virtual path (VP) support
	■ Support for idle cell or unassigned cell transmission
	■ OAM fault management processes alarm indication signal (AIS), remote defect indication
	(RDI), and loop cells
	■ Point-to-point and point-to-multipoint mode Layer 2 counters per VC and per VP
	■ Local and remote loopback
	■ ATM Inverse ARP, which enables routers to automatically learn the IP address of the
	router on the far end of an ATM PVC
	■ Simple Network Management Protocol (SNMP):
	■ Management Information Base (MIB) 2 (RFC 1213)
	■ ATM MIB (RFC 1695)
	■ SONET MIB

Cables and connectors

LEDs

Alarms, errors, and events

■Unspecified bit rate (UBR), non-real-time variable bit rate (VBR), and constant bit rate (CBR) traffic shaping

■Per-VC or per-VP traffic shaping

■Support for F4 OAM cells

■Support for 16-bit VCI range

■Duplex SC/PC connector (Rx and Tx)

■Optical interface support—See Table 10 on page 28

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

■Alarm indication signal (AIS-L, AIS-P)

■Bit error rate signal degrade (BERR-SD), bit error rate signal fail (BERR-SF)

■Bit interleaved parity errors B1, B2, B3

■Errored seconds (ES-S, ES-L, ES-P), far-end bit errors REI-L, REI-P (CV-LFE, CV-PFE), far-end errored seconds (ES-LFE, ES-PFE), far-end severely errored seconds (SES-LFE, SES-PFE), far-end unavailable seconds (UAS-LFE, UAS-PFE)

■Loss of cell delineation (LOC), loss of frame (LOF), loss of pointer (LOP-P), loss of signal (LOS)

■Payload mismatch (PLM-P), payload unequipped (UNEQ-P)

■Remote defect indication (RDI-L, RDI-P)

■Severely errored framing (SEF), severely errored framing seconds (SEFS-S), severely errored seconds (SES-S, SES-L, SES-P), unavailable seconds (UAS-L, UAS-P)

Table 10: Optical Interface Support for ATM2 OC12/STM4 IQ PICs

Parameter	Intermediate Reach (IR) Transceiver	Multimode Transceiver
Optical interface	Single-mode	Multimode
Transceiver type	Fixed	Fixed

28■ ATM2 OC12/STM4 IQ PICs