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    M40 Router Overview

    Note: See the End-of-life (EOL) and End-of-sale (EOS) Notification Policy and Procedures for the M40 router and products at End of life (EOL) indicates that the product has been removed from the price list and is no longer available for purchase. End of support (EOS) indicates that no new support contracts are available on these products and the last contract will expire on the EOS date associated with each product. For more information about EOS or EOL products, see the product support notification (PSN) hardware end-of-life announcements.

    The M40 router provides high-speed forwarding performance, packet processing, and port density for high-growth core IP networks. The M40 router supports the Junos OS, which provides router configuration and monitoring, see Figure 1.

    Figure 1: M40 Router

    M40 Router

    The M40 router includes the router-specific System Control Board (SCB). The SCB contains the Internet Processor II application-specific integrated circuit (ASIC) and performs sampling, filtering, and packet forwarding decisions. The SCB processes exception and control packets, monitors system components, and controls Flexible PIC Concentrator (FPC) resets.

    PICs are available in supported media types, including Asynchronous Transfer Mode (ATM), Channelized, DS3, E1, E3, T1, Ethernet, SONET/SDH, and IP services. The M40 router provides the bandwidth to grow networks to OC48c/STM16 speeds. The M20 and M40 FPCs and PICs are interchangeable, and most of the PICs can also be used in the M40e router. For more information about supported PICs and FPCs for each M Series router type, see the appropriate PIC installation guide.

    The M40 router Internet processor II ASIC forwards packets at a throughput rate of up to 40 Gigabits per second (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. The M40 router delivers the bandwidth required to grow networks to OC48c/STM16 speeds in a cost-effective manner.


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    Published: 2012-08-20