Cisco offers very good stability in the ASA platform. With HA configurations and clustering, you can ensure good uptime within business critical environments regardless if you use real or virtual Iron.
Take these pair of cisco NGFW ASA558-Xs, they have boast nearly 2 years of availability during the deployment and operations.
Since the PIX the cisco ASA has shown great stable hardware and are pretty much bullet proof.
NSE ( network security expert) and Route/Switching Engineer
kfelix -----a----t---- socpuppets ---dot---com
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