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MX2010 Modular Port Concentrator Description

The Modular Port Concentrators (MPCs) provides packet forwarding services. The MPCs install into an adapter card, which in turn connects to the backplane. Modular Interface Cards (MICs) provide the physical interfaces and install into the MPCs. The user can install up to two MICs of different media types on the same MPC as long as the MPC supports those MICs.


The MX2010 router also supports fixed-port MPCs.

MICs receive incoming packets from the network and transmit outgoing packets to the network. During this process, each MIC performs framing and high-speed signaling for its media type. Each MPC is equipped with up to four Junos Trio chipsets, which perform control functions tailored to the MPC’s media type.

The MX2010 router supports up to 10 MPCs. For power requirements, see Calculating DC Power Requirements for MX2010 Routers and Calculating AC Power Requirements for MX2010 Routers.

The router has 10 dedicated line-card slots for MPCs. MPCs install vertically in the front of the router. The dedicated slots are numbered 0 though 9 (left to right). An MPC can be installed in any line-card slot. The user can install any combination of MPC types in the router.

When an MPC slot is not occupied by an MX2000 MPC or an adapter card with MPC, a blank MX2000 panel needs to be installed.

MPCs are hot-removable and hot-insertable. When the user installs an MPC in an operating router, the CB-RE downloads the MPC software, the MPC runs its diagnostics, and enables the Packet Forwarding Engines housed on the MPC. Forwarding on other MPCs continues uninterrupted during this process.

Figure 1 shows a typical MPC supported on the MX2010 router. Figure 2 shows an MPC installed vertically in the MX2010 router. For more information about MPCs, see the MX Series Interface Module Reference.

Figure 1: Typical MPC Supported on the MX2010 RouterTypical MPC Supported on the MX2010 Router
Figure 2: MPC Installed in the MX2010 RouterMPC Installed in the MX2010 Router

MPC Components

Each MPC consists of the following components:

  • MIC card carrier, which includes two MIC slots (excludes the fixed configuration MPC).

  • Fabric interfaces.

  • Two Gigabit Ethernet interfaces that allow control information, route information, and statistics to be sent between the Routing Engine and the CPU on the MPCs.

  • Up to four Junos Trio chipsets, which perform control functions tailored to the MPC’s media type.

  • Backplane connectors and power circuitry.

  • Online button located on the craft interface, which takes the MPC online or offline when pressed.

  • OK/FAIL LED on the MPC faceplate. For more information about LEDs on the MPC faceplate, see the MX Series Interface Module Reference.