An engineer is configuring a second Cisco FMC as a standby device but is unable to register with the active unit. What is causing this issue?
The primary FMC currently has devices connected to it.
The code versions running on the Cisco FMC devices are different
The licensing purchased does not include high availability
There is only 10 Mbps of bandwidth between the two devices.
https://www.cisco.com/c/en/us/td/docs/security/firepower/620/configuration/guide/fpmc-config-guide-v62/firepower_management_center_high_availability.html
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