Juniper Networks M20 Manuel d'utilisateur télécharger pdf (Page 18)

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Circuit cross-connect (CCC) for leveraging ATM access networks

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User-configurable virtual circuit (VC) and virtual path (VP) support

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Support for idle cell or unassigned cell transmission

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OAM fault management processes alarm indication signal (AIS), remote defect indicator

(RDI) cells, and loop cells

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Point-to-point and point-to-multipoint mode Layer 2 counters per VC and per VP

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Local and remote loopback

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ATM Inverse Address Resolution Protocol (ARP), which enables routers to automatically

learn the IP address of the router on the far end of an ATM permanent virtual circuit

(PVC)

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Simple Network Management Protocol (SNMP):

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Management Information Base (MIB) 2 (RFC 1213)

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ATM MIB (RFC 1695)

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SONET MIB

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Unspecified bit rate (UBR), non-real-time variable bit rate (VBR), and constant bit rate

(CBR) traffic shaping

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Per-VC or per-VP traffic shaping

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Support for F4 OAM cells

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Support for 16 bit VCI range

Software features

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Duplex SC/PC connector (RX and TX)

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Optical interface support—See Table 6 on page 18

Cables and connectors

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-L, AIS-P)

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

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Bit interleaved parity errors B1, B2, B3

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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)

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

(LOS)

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

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

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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)

Alarms, errors, and

events

Table 6: Optical Interface Support for ATM2 OC3 IQ PICs

MultimodeIntermediate Reach (IR)Parameter

MultimodeSingle-modeOptical interface

FixedFixedTransceiver type

18 ■ ATM2 OC3/STM1 IQ PIC

M20 Internet Router PIC Guide

1 2 ... 13 14 15 16 17 18 19 20 21 22 23 ... 67 68

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Juniper Networks M20 Manuel d'utilisateur Page 18

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