Figure 8: Switching And Forwarding Module - Juniper Internet Router M160 Hardware Manual

NOTE: For specific information about SFM components (for example, the amount of
SSRAM and DRAM), issue the

Figure 8: Switching and Forwarding Module

Ejector handle
Ejector locking tab
FPCs, while the second forwards notification of routing decisions to the
I/O Manager ASICs.
One Internet Processor II ASIC—Performs route lookups and makes routing
decisions.
Parity-protected SSRAM—Stores the forwarding table.
Processor subsystem—Manages SFM functions and handles exception packets.
The processor has the following components:
One PowerPC 603e processor
Parity-protected Level 2 cache
Parity-protected DRAM
EEPROM—Stores the serial number and revision level.
Offline button—Prepares the SFM for removal from the router when pressed.
Two LEDs—Indicate SFM status. There is a green one labeled
one labeled . Table 7 describes the LED states.
FAIL
Ejector handles and locking tabs—Control the locking system that secures the
SFM in the chassis.
Offline button LEDs
command.
show chassis sfm detail
Packet Forwarding Engine
Hardware Component Overview
and an amber
OK
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