splithorizon — decoding the modern networkDeep technical writing on routing, cloud, and AI networking — by a 2× CCIE.https://splithorizon.vercel.app/What actually happens when you peer two VPCshttps://splithorizon.vercel.app/blog/vpc-peering/https://splithorizon.vercel.app/blog/vpc-peering/The transit gateway hides more than it shows. I traced a single packet end to end — here's the path the console never draws for you.Sat, 14 Mar 2026 00:00:00 GMTcloud networkingGPU fabrics don't forgive jitterhttps://splithorizon.vercel.app/blog/gpu-fabrics/https://splithorizon.vercel.app/blog/gpu-fabrics/Why collective operations collapse under microbursts, and the buffer math that keeps a training run alive.Fri, 20 Feb 2026 00:00:00 GMTai networkingCloud Architecture Battlegrounds AWS vs. Azurehttps://splithorizon.vercel.app/blog/azure_networking_ccie_deep_dive/https://splithorizon.vercel.app/blog/azure_networking_ccie_deep_dive/Cloud Architecture Battlegrounds AWS vs. Azure NetworkingFri, 06 Feb 2026 00:00:00 GMTcloud networkingDemystifying AWS Networking A Deep Dive Under the Hoodhttps://splithorizon.vercel.app/blog/aws_networking_ccie_deep_dive/https://splithorizon.vercel.app/blog/aws_networking_ccie_deep_dive/A Deep Dive Under the Hood from an Enterprise Networking PerspectiveFri, 06 Feb 2026 00:00:00 GMTcloud networkingVXLAN eVPN, explained without the hand-wavinghttps://splithorizon.vercel.app/blog/vxlan-evpn/https://splithorizon.vercel.app/blog/vxlan-evpn/Control plane, data plane, and the exact moment a MAC address becomes a route advertisement.Fri, 09 Jan 2026 00:00:00 GMTdata centerThe real cost of an overlayhttps://splithorizon.vercel.app/blog/overlay-cost/https://splithorizon.vercel.app/blog/overlay-cost/Encapsulation isn't free. Measuring the tax in latency, MTU, and the engineer-hours nobody budgets for.Fri, 12 Dec 2025 00:00:00 GMTcloud networking