M20 Internet Router PIC Guide

Channelized OC12 PIC

Software release

JUNOS 4.0 and later

Description

One OC12 port

 

Power requirement: 0.23 A @ 48 V (10.8 W)

 

12 DS3 channels

 

Supports IP version 4 (IPv4) unicast and multicast as well as MPLS, Intermediate

 

 

System-to-Intermediate System (IS-IS), Open Shortest Path First (OSPF), and Border

 

 

Gateway Protocol (BGP)

Hardware features

ASIC-based, high-performance throughput on all ports

 

Integrated DSU functionality with subrate and scrambling support for each DS3 channel

 

Class-of-service support for each DS3 channel

 

Dual-router SONET automatic protection switching (APS)

 

Rate policing on input for each DS3 channel

 

Rate shaping output for each DS3 channel

 

Packet buffering, Layer 2 parsing

Software features

M13/C-bit parity encoding

 

Full instrumentation per DS3 channel

 

DS3 diagnostics and loopback control

 

DS3 alarm and event counting and detection

 

DS3 Far-end Alarm and Control (FEAC) channel support

 

Encapsulations:

 

 

High-Level Data Link Control (HDLC)

 

 

Frame Relay

 

 

Circuit cross-connect (CCC)

 

 

Translational cross-connect (TCC)

 

 

Point-to-Point Protocol (PPP)

Cables and connectors

Duplex SC/PC connector (RX and TX)

 

Optical interface support—See Table 9 on page 29

LEDs

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

28Channelized OC12 PIC

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Juniper Networks M20 manual Channelized OC12 PIC