JUNOS Internet Software Network Operations Guide: Hardware
444 ! Understanding the FIC
Understanding the FIC
Purpose Inspect the FIC to ensure that it receives incoming packets from the network,
transmits outgoing packets to the network, provides support for Ethernet ports,
displays system alarms, and takes PICs online or offline as needed.
What Is an FIC A FIC is a component, built into the M7i router chassis, that receives incoming
packets from the network and transmits outgoing packets to the network, providing
support for Fast Ethernet ports or Gigabit Ethernet interfaces, depending on which
version of the FIC is installed in the M7i router. You also monitor the FIC to view
alarm status, and to perform some system control functions, such as taking PICs
online and offline.
There are two types of FICs: with fast Ethernet ports and with a Gigabit Ethernet
port. Figure 176 shows the FIC with Fast Ethernet ports.
Figure 176: M7i Router FIC with Fast Ethernet Ports
Figure 177 shows the FIC with a Gigabit Ethernet port.
Figure 177: M7i Router FIC with Gigabit Ethernet Port
The FIC is located on the front of the chassis to the left of the Routing Engine and is
not a field-replaceable unit (FRU). (See Figure 178.)
Figure 178: M7i Router FIC Location
PORT1 PORT0
3210
LINK ACT. LINK
g003222
MAJOR ALARM
PICS ON/OFF
MINOR ALARM
3210
g003223
MAJOR ALARM
MINOR ALARM
LINK
ACTIVITY
PICS ON/OFF
g002161
FIC
M7i front
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