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    M160 Internet Router Overview

    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 1.)

    Figure 1: M160 Router

    M160 Router

    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 and maintains the routing tables. For a host module to function, both of these components must be installed and operational.

    PICs are available in supported media types, including Asynchronous Transfer Mode (ATM), Channelized DS3, E1, E3, T1, Ethernet, SONET/SDH, and IP services. The M160 router supports both M160 and M40e PICs. For more information about supported PICs for each M Series router type, see the appropriate PIC installation guide.

    The M160 router Internet Processor II ASIC forwards packets at a throughput rate of up to 160 Gbps. The ASIC technology provides such packet processing as route lookups, filtering, sampling, rate limiting, load balancing, buffer management, switching, and encapsulation and de-encapsulation of IP services.


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    Published: 2012-08-20