Sophos Firewall: Configure High Availability Mode Part 1 - HA Modes and Setup Prerequisites

Jay from Sophos Support goes over the fundamentals and prerequisites that you need to know before diving right into the configuration of High Availability. Afterward, check out Part 2 of the HA series covering the configuration at the following link:
https://techvids.sophos.com/watch/CXgWk46RoUrF2MXQ4fqLQW

Special thanks to Andrew Last and Emmanuel Osorio for providing technical information for this video.

Skip ahead to these sections, or use the top bar in the video:

00:00 Overview
00:51 Architecture
03:05 HA Modes
04:41 Failover Triggers
05:00 Prerequisites

High Availability Prerequisites:
https://support.sophos.com/support/s/article/KB-000035744?language=en_US#prerequisites

High Availability Licensing Requirements:
https://support.sophos.com/support/s/article/KB-000036497?language=en_US

Common High Availability Failover Triggers:
https://docs.sophos.com/nsg/sophos-firewall/18.0/Help/en-us/webhelp/onlinehelp/nsg/sfos/haStartupGuide/concepts/HAOperation.html

High Availability Startup Guide:
https://docs.sophos.com/nsg/sophos-firewall/18.0/Help/en-us/webhelp/onlinehelp/nsg/sfos/haStartupGuide/concepts/AboutHighAvailability.html

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