Guide Series
Fortinet SDWAN
Comprehensive guides from NSE4 through NSE7. Configuration, design, and real-world SDWAN deployment with FortiGate.
Start Learning →Linux & Scripting
Linux fundamentals, server administration, Bash scripting, and automation for network engineers.
Start Learning →Python for Networks
Python programming from the ground up, focused on network automation, APIs, and tooling.
Start Learning →Cisco / Arista / Juniper
Enterprise switching and routing, spanning traditional IOS through modern cloud-native platforms.
Start Learning →AI & Automation
Practical AI guides for technical professionals — LLMs, APIs, self-hosting, and building AI-powered tools.
Start Learning →Latest from the Blog
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VeloCloud SD-WAN and Partner Gateways Part 1: MPLS-Only Site Architecture
A deep dive into how VeloCloud SD-WAN connects MPLS-only branch sites via Partner Gateways — covering the NNI, underlay BGP peering, and why MPLS-only edges present a unique onboarding challenge.
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VeloCloud SD-WAN and Partner Gateways Part 2: Onboarding an MPLS-Only Edge
A step-by-step walkthrough of how an MPLS-only VeloCloud Edge activates using a temporary internet path injected into the MPLS VRF, what changes once the VCMP tunnels are up, and how the production routing state differs from the onboarding state.
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VeloCloud SD-WAN and Partner Gateways Part 3: Taming the Default Route at the NNI
Why a 0/0 leaking from the MPLS underlay into a VeloCloud Partner Gateway is dangerous, how to filter it at the NNI, and the VeloCloud best practice approach to default route handling — with BGP policy examples.