Cloud Networking Basics: VPC - AWS Vs Azure Vs Google Cloud Cables2Clouds podcast

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Cloud Networking Basics: VPC - AWS vs Azure vs Google Cloud

3d ago 40:54

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What happens when three major cloud providers each reimagine network design from scratch? You get three completely different approaches to solving the same fundamental problem.
The foundation of cloud networking begins with the virtual containers that hold your resources: AWS's Virtual Private Clouds (VPCs), Azure's Virtual Networks (VNets), and Google Cloud's VPCs (yes, the same name, very different implementation). While they all serve the same basic purpose—providing logical isolation for your workloads—their design philosophies reveal profound differences in how each provider expects you to architect your solutions.
AWS took the explicit control approach. When you create subnets within an AWS VPC, you must assign each to a specific Availability Zone. This creates a vertical architecture pattern where you're deliberately placing resources in specific physical locations and designing resilience across those boundaries. Network engineers often find this intuitive because it matches traditional fault domain thinking. However, this design means you must account for cross-AZ data transfer costs and explicit resiliency patterns.
Azure flipped the script with their horizontal approach. By default, subnets span across all AZs in a region, with Microsoft's automation handling the resilience for you. This "let us handle the complexity" philosophy makes initial deployment simpler but provides less granular control. Meanwhile, Google Cloud went global, allowing a single VPC to span regions worldwide—an approach that simplifies global connectivity but introduces new challenges for security segmentation.
These architectural differences aren't merely academic—they fundamentally change how you design for resilience, manage costs, and implement security. The cloud introduced "toll booth" pricing for data movement, where crossing availability zones or regions incurs charges that didn't exist in traditional data centers. Understanding these nuances is crucial whether you're migrating existing networks or designing new ones.
Want to dive deeper into cloud networking concepts? Let us know what topics you'd like us to cover next as we explore how traditional networking skills translate to the cloud world.

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Chapters

1. Introduction to Cloud Network Basics (00:00:00)

2. Core Concepts of VPCs and Virtual Networks (00:04:16)

3. AWS Design Philosophy: Region-Locked VPCs (00:10:01)

4. Azure vs AWS: Horizontal vs Vertical Design (00:19:10)

5. Google Cloud's Global VPC Approach (00:22:26)

6. Design Trade-offs and Cost Considerations (00:28:23)

7. Common Misconceptions and Immutable Elements (00:35:50)

8. Wrap-up and Future Topics (00:38:39)

106 episodes

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