Cisco Firepower 4100 Series Manuel - Page 16

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1-Gb Network Module with Hardware Bypass

Note

There are three configuration options for hardware bypass network modules:

• Passive interfaces—Connection to a single port.

• Inline interfaces—Connection to any two like ports (10 Gb to 10 Gb for example) on one network module,

• Inline with hardware bypass interfaces—Connection of a hardware bypass paired set.

Note

For More Information

1-Gb Network Module with Hardware Bypass

The following figure shows the front panel view of the 1-Gb network module with hardware bypass

(FPR-NM-8X1G-F). Pair ports 1 and 2, 3 and 4, 5 and 6, and 7 and 8 to form hardware bypass paired sets.

Overview

When the appliance switches from normal operation to hardware bypass or from hardware bypass back

to normal operation, traffic may be interrupted for several seconds. A number of factors can affect the

length of the interruption; for example, behavior of the optical link partner such as how it handles link

faults and debounce timing; spanning tree protocol convergence; dynamic routing protocol convergence;

and so on. During this time, you may experience dropped connections.

For each network segment you want to monitor passively, connect the cables to one interface. This is

how the nonhardware bypass network modules operate.

across network modules, or fixed ports.

For each network segment you want to monitor inline, connect the cables to pairs of interfaces.

For each network segment that you want to configure inline with fail-open, connect the cables to the

paired interface set.

For the 40-Gb network module, you connect the two ports to form a paired set. For the 1/10-Gb network

modules, you connect the top port to the bottom port to form a hardware bypass paired set. This allows

traffic to flow even if the security appliance fails or loses power.

If you have an inline interface set with a mix of hardware bypass and nonhardware bypass interfaces,

you cannot enable hardware bypass on this inline interface set. You can only enable hardware bypass

on an inline interface set if all the pairs in the inline set are valid hardware bypass pairs.

• See

1-Gb Network Module with Hardware Bypass , on page 16

module.

• See

40-Gb Network Module with Hardware Bypass , on page 18

network module.

• See

1-Gb SX/10-Gb SR/10-Gb LR Network Module with Hardware Bypass , on page 19

description of the 1-GB SX, 10-GB SR, and LR network modules.

• See

Install, Remove, and Replace the Network Module

single-wide network modules.

for a description of the 1-Gb network

for a description of the 40-Gb

for the procedure for removing and replacing

Overview

for a