Fpc Components; Mx480 Flexible Pic Concentrator (Fpc) Leds - Juniper MX480 Hardware Manual

destination port. On an FPC3, two Packet Forwarding Engines receive incoming packets from the PICs
installed on the FPC and forwards them through the switch planes to the appropriate destination port.
The FPCs interface with the power supplies and SCBs.
FPCs are hot-removable and hot-insertable, as described in
When you install an FPC into a functioning router, the Routing Engine downloads the FPC software, the
FPC runs its diagnostics, and the PICs, housed on the FPC, are enabled. Forwarding continues uninterrupted
during this process. When you remove or install an FPC, packet forwarding between other DPCs or FPCs
is not affected.

FPC Components

Each FPC consists of the following components:
FPC card carrier, which includes two PIC slots
Up to two Packet Forwarding Engines, each consisting of one I-chip for Layer 3 processing and one
Layer 2 network processor
Midplane connectors and power circuitry
Processor subsystem (PMB), which includes a 1.2-GHz CPU, system controller, 1 GB of SDRAM, and
two Gigabit Ethernet interfaces
Two LEDs, located on the craft interface above the FPC, that display the status of the FPC and are
labeled OK and FAIL
FPC online/offline button, located on the craft interface above the FPC
SEE ALSO
Maintaining MX480 FPCs | 338
MX480 FPC Terminology
Troubleshooting the MX480 FPCs | 440
Replacing an MX480 FPC | 345

MX480 Flexible PIC Concentrator (FPC) LEDs

Two LEDs, located on the craft interface above the FPC, that display the status of the FPC and are labeled
OK and FAIL. For more information about the FPC LEDs located on the craft interface, see
the MX480 Craft Interface" on page
"MX480 Component Redundancy" on page
40.
121
32.
"FPC LEDs on