Replace an ASA in a Cluster

I have a cluster active / standby with two ASA5510 and I want to change one of them, because an ASA5510 is damaged. Both have a CSC - SSM module. What should I consider?

(Licensing, Configuration,...)

In the failover configuration, make sure that both units in a failover configuration must have the same hardware configuration. They must be of the same model, have the same number and types of interfaces, the same amount of RAM and installed the same SSMs, ASA 5500 series security appliance (if any).

The two units do not have to have the same size Flash memory. If using units with memory sizes different Flash in your failover configuration, check the unit with the smaller Flash memory has enough space to accommodate the files the software image and configuration files. If it is not the case, the synchronization of the configuration of the device with the largest Flash memory to the unit with the smaller Flash memory will fail.

Tags: Cisco Security

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