Figure 8: Rear View Of An Ac M120 Router - Juniper M Series Monitoring And Troubleshooting Manual

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M Series and T Series Routers Monitoring and Troubleshooting Guide

The router provides multiple redundancy options and chassis configurations, enhanced

ASIC features, and chassis and Packet Forwarding Engine (PFE) scaling. PFE routing

functionality is performed by Forwarding Engine Boards (FEBs) which separate routing

ASICs from Flexible PIC Concentrators (FPCs) to provide high availability and redundancy

of the forwarding engine. The router utilizes the I-chip ASIC, which supports up to 32,000

logical interfaces depending on your configuration. The base chassis provides 120 gigabits

per second (Gbps) of midplane bandwidth between the interfaces and FEBs, and 144

Gbps, half duplex, of fabric bandwidth between the FEBs.

The M120 router accepts both AC and DC power supplies. See

Figure 9 on page

Figure 8: Rear View of an AC M120 Router

Figure 8 on page 18