field notes from a recovering CCIE

Decoding the Modern Network: From Enterprise to AI.

Deep technical writing on routing, cloud, and the networks that scale AI. If it moves packets around, I want to understand how it works.

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latest · cloud internals

Understanding AWS's Shift to Resilient Network Graphs (RNG)

Understanding AWS's Shift to Resilient Network Graphs (RNG)

recent

Latest writing

allcomputeconnectivitysecuritycloud internalsai networking
compute ·15 min

NICs, next-hop routing, and secondary IPs. where AWS, Azure, and GCP actually diverge

NICs, next-hop routing, and secondary IPs. where AWS, Azure, and GCP actually diverge

jun 2026 · read
connectivity ·15 min

What "private" actually means. PrivateLink, Private Link, and PSC under the hood

What "private" actually means. PrivateLink, Private Link, and PSC under the hood

jun 2026 · read
security ·15 min

Security Groups Are Not a Standard. Comparing AWS, Azure, and GCP Firewall Models

Security Groups Are Not a Standard. Comparing AWS, Azure, and GCP Firewall Models

jun 2026 · read
connectivity ·15 min

Load Balancers Across AWS, Azure, and GCP. A Practitioner's Guide

Load Balancers Across AWS, Azure, and GCP. A Practitioner's Guide

apr 2026 · read
compute ·15 min

EC2 Effective Throughput. The Full Stack of Constraints

The headline bandwidth on an EC2 instance spec sheet is a ceiling, not a guarantee. This deep-dive unpacks every layer that sits between the published number and actual throughput — ENA, ENI topology, single-flow limits, PPS enforcement, conntrack allowances, and security group rule processing — with architecture heuristics for NVAs, high-CPS microservices, and bulk transfer workloads.

apr 2026 · read
connectivity ·18 min

Route Tables in the Cloud. A Deep Dive Across AWS, Azure, and GCP

A detailed comparison of route table architecture, subnet attachment models, quotas, next-hop types, and CIDR dependencies across AWS VPC, Azure VNet, and GCP VPC — with the operator-level detail you need before you hit a limit in production.

mar 2026 · read
connectivity ·15 min

AWS Transit Gateway vs. Azure Virtual WAN vs. GCP Network Connectivity Center - A Field Architect's Comparison

A practitioner's breakdown of how the three hyperscalers' transit hub-and-spoke fabrics actually differ under the hood — regional vs. global hub scope, inter-region transitivity, third-party NVA peering, and BGP route control — checked against current vendor quotas rather than memory.

feb 2026 · read
cloud internals ·15 min

Demystifying AWS Networking A Deep Dive Under the Hood

A Deep Dive Under the Hood from an Enterprise Networking Perspective

feb 2026 · read
cloud internals ·10 min

Cloud Architecture Battlegrounds AWS vs. Azure

Cloud Architecture Battlegrounds AWS vs. Azure Networking

jan 2026 · read
ai networking ·15 min

High-Performance Fabrics InfiniBand, RoCE v2, and the Merchant Silicon Revolution

High-Performance Fabrics InfiniBand, RoCE v2, and the Merchant Silicon Revolution

jan 2026 · read