SDN on Support Tools

Network Segmentation and Micro-segmentation Strategies: Enterprise Security Guide

Fri, 09 Oct 2026 00:00:00 -0500

Network segmentation and micro-segmentation form critical security layers in modern enterprise networks, providing granular access control and threat containment. This comprehensive guide explores advanced segmentation strategies, zero trust architectures, and production-ready implementations for enterprise environments.

QinQ (802.1ad) on Linux: Stacked VLANs for VMs and Bridges

Sat, 18 Apr 2026 00:00:00 -0500

IEEE 802.1ad (QinQ, or stacked VLANs) puts a second VLAN tag in front of the normal 802.1Q tag, so a provider or a virtualization host can carry each tenant’s full VLAN range inside one outer “service” VLAN. This page shows the Linux commands for QinQ on a plain interface, on a Linux bridge and on Open vSwitch, then covers the wider VLAN and overlay design for multi-tenant networks.

Enterprise Netplan Network Automation: Comprehensive Infrastructure as Code for Production Network Management

Tue, 22 Jul 2025 10:00:00 -0500

Enterprise network infrastructure requires sophisticated automation frameworks, declarative configuration management, and comprehensive orchestration systems to ensure consistent, reliable, and scalable network deployments across thousands of systems. This guide covers advanced Netplan implementations, enterprise network automation architectures, production configuration management, and comprehensive infrastructure as code strategies for modern data centers.