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    M7i Multiservice Edge Router Overview

    The M7i Multiservice Edge Router provides security and performance in small to medium Points of Presence (PoPs), as well as a carrier-class customer premise equipment (CPE) solution for managed services and campus border router applications. (See Figure 1.)

    Figure 1: M7i Router

    M7i Router

    The M7i router includes the Compact Forwarding Engine Board (CFEB) which provides route lookup, filtering, and switching on incoming data packets, then directs outbound packets to the appropriate interface for transmission to the network. It can process 16 million packets per second (Mpps). The CFEB communicates with the Routing Engine using a dedicated 100-Mbps link that transfers routing table data from the Routing Engine to the forwarding table. The link is also used to transfer routing link-state updates and other packets destined for the router from the CFEB to the Routing Engine.

    A built-in tunnel interface encapsulates arbitrary packets inside a transport protocol, providing a private, secure path through an otherwise public network. The built-in tunnel interface on the CFEB is configured the same way as a PIC. For information about configuring the built-in tunnel interface, see the Junos OS Services Interfaces Configuration Guide.

    The Adaptive Services PIC-Integrated (ASP-I) is an optional component on the CFEB which performs one or more services on traffic—Stateful firewall, Network Address Translation (NAT) or intrusion detection services (IDS)—before it reaches its destination.

    In addition to accommodating up to four PICs, the M7i router includes a built-in Fixed Interface Card (FIC) that provides two Fast Ethernet ports or one Gigabit Ethernet port, depending on which FIC or which model was ordered. For more information about Fast Ethernet and Gigabit Ethernet interfaces, see the M7i Multiservice Edge Router PIC Guide.

    The M7i router supports various PICs, including ATM, channelized, Ethernet, IP services, and SONET/SDH interfaces. For more information about supported PICs, see the M7i Multiservice Edge Router PIC Guide.

    The M7i router provides a maximum aggregate throughput of 8.4 gigabits per second (Gbps). Control operations in the router are perform Control operations in the router are performed by the Routing Engine, which runs the Junos OS operating system (OS) to handle routing protocols, traffic engineering, policy, policing, monitoring, and configuration management. Forwarding operations in the router are performed by the Packet Forwarding Engine.


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    Published: 2012-08-20