Sophos Firewall v18.0: 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