Cisco Firepower 4150 Manual - Page 16

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Cisco Firepower 4150 Manual
Hardware Bypass Network Modules
Note
Figure 11: FPR4K-NM-4X100G
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3
5
7
Hardware Bypass Network Modules
Hardware bypass (also known as fail-to-wire) is a physical layer (Layer 1) bypass that allows paired interfaces
to go into bypass mode so that the hardware forwards packets between these port pairs without software
intervention. Hardware bypass provides network connectivity when there are software or hardware failures.
Hardware bypass is useful on ports where the Firepower security appliance is only monitoring or logging
traffic. The hardware bypass network modules have an optical switch that is capable of connecting the two
ports when needed. The hardware bypass network modules have built-in SFPs.
Overview
16
Make sure you have the correct firmware package and software version installed to support this network
module. For instructions on how to verify your firmware package version and to upgrade the firmware if
necessary, see the
Cisco Firepower 4100/9300 FXOS Firmware Upgrade
FXOS Compatibility
for the software compatibility matrix.
Power LED
Ethernet X/2
Ethernet X/4
Network activity LEDs
• Off—No connection or port is not in use.
• Amber—No link or network failure.
• Green—Link up.
• Green, flashing —Network activity.
Guide. See
2
Ethernet X/1
Ethernet X/3
4
Captive screw/handle
6
—
Overview
Cisco Firepower 4100/9300