Important note about SSL VPN compatibility for 20.0 MR1 with EoL SFOS versions and UTM9 OS. Learn more in the release notes.

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Firewall HA, Active -Active Setup

A firewall is configured in HA, Active-Active mode, can it cater double the size of users it is designed for?

Ex. XGS3100  (2nos) configured in HA, Active-Active load balancing mode. Can it Cater 1000 concurrent users?



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  • Personally i would not recommend A-A, instead take a bigger appliance with A-P. 
    Reasoning: The license module of SFOS needs two subscriptions for A-A and one License for A-P. So to speak, you will likely be having a better offer for a A-P appliance of a bigger appliance. 

    A-A does not offer 100% more performance as it is not a full Load Balancing, instead certain tasks are being load balanced. A-P has the advantages of having still the full performance, even if one appliance is faulty. 

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