Persistent CGAs is a feature of SeND.
Previously, all generated CGAs on SeND-enabled interfaces remained unchanged after a CPM switchover, but after a reboot from a saved configuration file, all CGAs were regenerated.
To keep the same CGAs after a reboot from a saved configuration file:
Save the RSA key pair used for SeND.
Save the modifiers used during the CGA generation.
To make the CGAs persistent:
Import an online or offline generated RSA key pair for SeND.
Ensure that the CompactFlash (CF) files containing an RSA key pair that is used for SeND, are synchronized to the standby CPM by making use of the HA infrastructure used for certificates.
Ensure that the configuration file is saved when one or more CGAs are generated.