In this video we go super deep on things like symmetric routing, SNAT, hashing to support highly available NVAs in Azure.
Whiteboard - https://github.com/johnthebrit/RandomStuff/blob/master/Whiteboards/HANVAs.svg
Load Balancer Deep Dive - https://youtu.be/wJvmXM81tEI
HA Ports - https://docs.microsoft.com/en-us/azure/load-balancer/load-balancer-ha-ports-overview
NVA HA architectures - https://docs.microsoft.com/en-us/azure/architecture/reference-architectures/dmz/nva-ha?tabs=cli#load-balancer-standard-and-ha-ports
00:00 Introduction
01:38 Load Balancer functionality review
06:48 Floating IP
08:52 Next hop behavior
10:55 SDN L3 differences from a L2 physical world and numbers of NICs
14:37 Stateful HA NVAs
16:12 Internal facing NVAs
26:15 External and internal NVAs. No SNAT
32:38 With SNAT!
36:15 x-forwarded-for with SNAT
37:14 Using Floating IP
39:30 Using Route Server
44:00 Summary