Cisco 3100 Series Hardware Installation Manual page 26

6-Port 1-Gb SX/10-Gb SR/10-Gb LR/25-Gb SR/25-Gb LR Network Module with Hardware Bypass
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.
Note
Hardware bypass is only supported with threat defense, although you can use these modules in nonbypass
mode in threat defense or ASA.
Hardware bypass is supported only on a fixed set of ports. You can pair Port 1 with Port 2, Port 3 with Port
4, but you cannot pair Port 1 with Port 4 for example.
Note
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.
Note
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.
Note The 6-port 1-Gb SX/10-Gb SR/10-Gb LR/25-Gb SR/25-Gb LR network module is supported beginning with
FTD 7.2.3 and ASA 9.18.2.
Note
The hardware and the system support hot swapping if you are replacing a network module with the same type
of network module. If you replace the 6-port 1/10/25-Gb network module with another supported network
module, you must reboot the chassis so that the new network module is recognized. See the configuration
guide for your operating system for the detailed procedures for managing network modules.
Note Make sure you have the correct firmware package and software version installed to support this network
module. See the configuration guide for your software for the procedure to verify your firmware package and
software version. See the
Firewall ASA Compatibility
operating system and hosting environment requirements, for each supported version
The following figure shows the front panel of the 6-port 1/10/25-Gb network module.
Cisco Secure Firewall 3100 Series Hardware Installation Guide
22
Cisco Secure Firewall Threat Defense Compatibility Guide
guide, which provide Cisco software and hardware compatibility, including
Overview
and the Cisco Secure