Failover is the technique of switching to a redundant backup machine when a certain node goes down. This is a very common implementation for achieving high availability and it is often mixed with different load balancing techniques such as layer 4 and layer 7 balancing.
In this video i want to go through following
Chapters
0:00 Intro
1:47 What is Failover?
3:00 ARP - Address Resolution Protocol
5:40 VIP & VRRP
12:12 High-availability Example
#KeepAlived
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