Figure 17: Fpc Installed In Router Chassis - Juniper M320 Hardware Manual

M320 Multiservice Edge Router Hardware Guide
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The Packet Forwarding Engine receives incoming packets from the PICs installed on the
FPC and forwards them through the switch planes to the appropriate destination port.
Each FPC contains a memory subsystem (MMB) that is managed by the Queuing and
Memory Interface ASICs.
FPCs are hot-removable and hot-insertable, as described in
Units" on page 185. 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 is not affected. For FPC replacement
instructions, see "Replacing an M320 FPC" on page

Figure 17: FPC Installed in Router Chassis

The M320 router supports the following types of FPCs (see
FPC1, Enhanced II FPC1, and Enhanced III FPC1—Rated at 4 gigabits per second (Gbps)
full duplex
FPC2, Enhanced II FPC2, and Enhanced III FPC2—Rated at 16 Gbps full duplex
"M320 Field Replaceable
227.
Figure 18 on page 51
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