M160 Internet Router Overview; Figure 10: M160 Router - Juniper M Series Monitoring And Troubleshooting Manual

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M160 Internet Router Overview

M120 Multiservice Edge Router Overview on page 17

The M160 Internet router provides a dense, highly redundant platform primarily for large

backbone core IP networks where switching fabric and Routing Engine redundancy are

required. The M160 router supports Junos OS which provides router configuration and

monitoring. (See

Figure 10 on page

The Type 1 Flexible PIC Concentrators (FPCs) for the M40e and M160 routers are

interchangeable. The M160 router supports two types of FPCs: FPC1 supports PICs,

including the single-port OC12 and Gigabit Ethernet; and FPC2 supports higher-speed

PICs, including OC48 and Tunnel Services. The router can operate with any combination

of FPC1s and FPC2s installed. For more information about supported PICs and FPCs for

each M Series router type, see the appropriate PIC installation guide.

The M160 router accepts only DC power supplies.

The M160 router can have up to four Switching and Forwarding Modules (SFMs). The

SFMs contain the Internet Processor II application-specific integrated circuit (ASIC) and

two Distributed Buffer Manager ASICs, and make forwarding decisions, distribute packets

throughout memory, and forward notification of outgoing packets.

The M160 router includes the host module that constructs routing tables, performs

system management functions, and generates the SONET/SDH clock signal for

SONET/SDH interfaces. The host module contains the Routing Engine and the

Miscellaneous Control Subsystem (MCS). The Routing Engine manages routing protocols

Chapter 1: M Series Multiservice Edge Routers