Internet Router Hardware Guide

Replacing Hardware Components
Figure 86: Installing a Routing Engine
PCG 0
SFM 0
SFM 1
MCS 0
RE 0
RE 1
PCG 1
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Extractor
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Replacing Packet Forwarding Engine Components
For instructions on replacing Packet Forwarding Engine components, see the
following sections:
Replacing an FPC on page 169
Replacing a PCG on page 176
Replacing a PIC on page 179
Replace PIC Cables on page 185
Replacing an SFM on page 188
Replace an SFP on page 190
Replacing an FPC
FPCs are hot-removable and hot-inserta ble, as described in Field-Replaceable
Units (FRUs) on page 4. When you remove an FPC, forwarding operations halt
forabout200mswhilethePacketForwardingEngineflushesthesharedmemory
buffers on the remaining FPCs.
To replace an FPC, perform the following procedures:
Removing an FPC on page 170
Replacing Packet Forwarding Engine Components 169