Now that we know what regions and availability zones are, let’s go back to Daniel Dib’s question:
As I understand it, subnets in Azure span availability zones. Do you see any drawback to this? Does subnet matter if your VMs are in different AZs?
Wait, what? A subnet is stretched across multiple failure domains? Didn’t Ivan claim that’s ridiculous?
TL&DR: What I claimed was that a single layer-2 network is a single failure domain. Things are a bit more complex in public clouds. Keep reading and you’ll find out why.
source https://blog.ipspace.net/2021/02/vpc-subnets-aws-azure-gcp.html?utm_source=atom_feed
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