Mpcs And Mics; Switch Fabric Boards (Sfb, Sfb2, Sfb3) - Juniper MX2020 Hardware Manual

NOTE: In the Junos OS CLI, you use the FPC syntax to configure or display information about
DPCs, and you use the PIC syntax to configure or display information about Packet Forwarding
Engines on the DPCs.
In addition to Layer 3 routing capabilities, the DPCs also have many Layer 2 functions that allow MX
Series routers to be used for many virtual LAN (VLAN) and other Layer 2 network applications.

MPCs and MICs

Modular Port Concentrators (MPCs) with Modular Interface Cards (MICs) provide packet forwarding
services and physical interfaces for MX routers. MICs install into MPCs and function similarly to PICs and
FPCs. MPCs install vertically in the MX2020, MX2010, MX2008, and MX960 router chassis, and horizontally
in the MX480 and MX240 router chassis. On MX5, MX10, MX40, MX80, and MX104 routers, MICs install
directly into the router chassis. There are also fixed-configuration MPCs, with built-in network ports and
services functionality. The maximum number of supported MPCs varies per MX router and hardware
configuration:
MX2020 router— up to 20 MPCs
MX2010 router— up to 10 MPCs
MX960 router— up to 12 MPCs
MX480 router— up to 6 MPCs
MX240 router— up to 3 MPCs
MX80 router— .
NOTE: The MX80 router is available in a modular configuration chassis (MX80) or fixed
configuration chassis (MX80-48T). Both chassis have a fixed 10-Gigabit Ethernet MIC with four
ports for uplink connections. The modular MX80 chassis has two dedicated slots for MICs. The
fixed configuration MX80 router has an additional 48 10/100/1000Base-T Ethernet ports.

Switch Fabric Boards (SFB, SFB2, SFB3)

Switch Fabric Boards (SFBs) provide increased fabric bandwidth per slot. Up to eight SFBs, SFB2s, or SFB3s
can be installed in an MX2020 or MX2010 router. The SFBs install vertically into the front of the chassis
in the slots labeled 0 through 7.
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