3 posts tagged with "Architecture"

I had another one of those weird problems which made me revisit the egress IP decision tree again.

I happened upon the diagram below within the pages on default outbound internet access and it seemed a little counterintuitive. The decision flow seems to suggest that a VM will use the egress IP of a NAT gateway preferably over an assigned PIP.

I had a conversation today about sharding in Azure. It's a fairly well-known thing in AWS but it's employed in Azure as well and has some important implications for workload placement in a few specific use cases. In this post, I'll explore the concept of AZ sharding, its implications for cross-subscription services, and techniques for mapping physical AZs to achieve optimal performance.