Is more related to API nodes. I think he is mostly referring to Witness Nodes which should not be public facing and thus High Availability via Load Balancer software like HAProxy is not relevant.
Consider the scenario of running 2 nodes in 2 buildings, depending on which network interfaces are active, we can switch - but yea this is going to be very ugly hack and going to be better in the case of API nodes.
Consider the scenario of running 2 nodes in 2 buildings, depending on which network interfaces are active, we can switch - but yea this is going to be very ugly hack and going to be better in the case of API nodes.