Next-Hop.dev

  • Cisco

Building a Lightweight Network Lab with Netlab and Containerlab on Ubuntu 24.04

Build a lightweight network lab on Ubuntu using netlab, containerlab, Docker, and Cisco IOL for fast, repeatable topology deployment and testing.

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13 min read
  • BGP

Learning Byte 002: Following BGP Routes Across Multiple Autonomous Systems

Follow BGP routes across multiple autonomous systems and see how AS_PATH, route propagation, loop prevention, and best-path selection work in a real lab.

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13 min read
  • BGP

Learning Byte 001: BGP Fundamentals

Learn the core concepts behind BGP, including autonomous systems, eBGP vs. iBGP, peer communication, neighbor states, message types, route advertisements, and AS_PATH.

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14 min read
  • Automation, Python

Junos PyEZ Foundations

Learn the foundations of Junos PyEZ by connecting to Junos devices, retrieving structured operational data, and working with the results in Python.

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15 min read
  • Palo Alto

Out-of-Band Management That You’ll Actually Be Glad You Built

Console servers, a separate path, and the failure modes a dedicated OOB network quietly saves you from at 3am.

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6 min read
  • Automation

From SSH Scripts to a Real Source of Truth with NetBox

Why a database beats a folder of YAML, and a migration path you can take one device type at a time without a big-bang cutover.

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11 min read