ASA Clustering

[MKH]

Hello

Does the ASA 5555-X support 2-unit clusters, only? Can I cluster 4-unit by purchase license (onother from base license)?

Thank you.

[Aditya Ganjoo]

Hi,

Yes you can setup cluster on this model.

The ASA 5512-X, ASA 5515-X, ASA 5525-X, ASA 5545-X, and ASA 5555-X now  support 2-unit clusters. Clustering for 2 units is enabled by default in  the base license; for the ASA 5512-X, you need the Security Plus  license.

https://www.cisco.com/c/en/us/td/docs/security/asa/asa91/release/notes/asarn91.html#wp736630

Regards,

Aditya

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[Marvin Rhoads]

With ASA 5555-X appliances you are limited to a 2-unit cluster.

If you need higher throughput (and don't have ASA 5585-Xs), you would generally be better served by something like the Firepower 4100 series.