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In this video, Keith Barker covers Active/Standby failover. If you're looking to provide High Availability (HA) via your firewall, setting up and configuring Active/Standby failover is the only way to make sure your network is fast and reliable.
Networks should work, and they should be fast – that’s the unstated expectation of just about every user on every network.
If it’s important that a user request get satisfied, even in the face of a fault in the network, we can implement some fault tolerance by having redundant systems. And that’s what Active/Standby Failover is all about.
There are two ingredients both firewalls. The primary remains Active while the secondary goes into standby.
The active ASA is the one that does the forwarding. When users go to the Internet, that firewall is the one – in measurable terms – forwarding the packet, and maintaining the session state table so the return message can make it back.
The secondary remains ready to take over in the event that Active goes down. It checks interfaces and validates the work of the other.
Watch as Keith goes into detail on how to confirm a well-configured failover state and how to force a failover.
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