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■JUNOS 4.0 and laterSoftware release
■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)
Description
■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
Hardware 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)
Software features
■Duplex SC/PC connector (RX and TX)
■Optical interface support—See Table 9 on page 29
Cables and connectors
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
28 ■Channelized OC12 PIC
M20 Internet Router PIC Guide