Mx240 Modular Port Concentrator (Mpc) Description - Juniper mx240 Hardware Manual

MX240 3D Universal Edge Router Hardware Guide
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MX240 Modular Port Concentrator (MPC) Description

74
The command output displays the Gigabit Ethernet interfaces that
show interfaces terse
correspond to the 20 ports located on the MIC.
user@host> show interfaces terse ge-2*
Interface
ge-2/0/0
ge-2/0/1
ge-2/0/2
ge-2/0/3
ge-2/0/4
ge-2/0/5
ge-2/0/6
ge-2/0/7
ge-2/0/8
ge-2/0/9
ge-2/1/0
ge-2/1/1
ge-2/1/2
ge-2/1/3
ge-2/1/4
ge-2/1/5
ge-2/1/6
ge-2/1/7
ge-2/1/8
ge-2/1/9
MX240 Router Hardware and CLI Terminology Mapping on page 10
Modular Port Concentrators (MPCs) provide packet forwarding services. The MPCs are
inserted into a slot in a router. Modular Interface Cards (MICs) provide the physical
interfaces and install into the MPCs. You can install up to two MICs of different media
types on the same router as long as the router supports those MICs.
A specialized fixed configuration MPC provides higher port density over MICs and combines
packet forwarding and Ethernet interfaces onto a single line card. The fixed configuration
MPC is inserted into a slot in a router and contains no slots for MICs.
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. Before transmitting outgoing data packets through the MIC interfaces,
the MPCs encapsulate the packets received. Each MPC is equipped with up to four Junos
Trio chipsets, which perform control functions tailored to the MPC's media type. The
MPCs interface with the power supplies and Switch Control Boards (SCBs). You must
install redundant SCBs to support full line-rate.
The MX240 router supports up to three MPCs. You must install a high-capacity fan tray
to use an MPC. For power requirements, see
Routers" on page 137.
The router has two dedicated line card slots for DPCs, MPCs, or FPCs. MPCs install
horizontally in the front of the router (see
numbered 1/0 supports either one line card or one SCB. The line card slots are numbered
Admin Link Proto Local
up down
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"Calculating Power Requirements for MX240
Figure 26 on page
Remote
75). One multifunction slot
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