Switching

Networking · 3 min read

QinQ: IEEE 802.1Q Tunneling

2012.04.19

In situations where service providers want to offer transparent LAN services that preserve a customers VLAN tags across your Layer-2 network, this amendment to the IEEE 802.

Networking · 4 min read

Nexus 7000 vPC Features

2011.08.19

Next generation data centers across the world are taking advantage of Cisco’s Virtual PortChannel.

Networking · 2 min read

SVI Autostate

2011.03.07

Switch Virtual Interfaces, or SVIs on Cisco IOS use a feature called autostate to determine the interface availability.

Networking · 3 min read

Introduction to the Nexus 1000V

2011.02.24

The Nexus 1000V is a software-based Cisco NX-OS switch that integrates into VMware vSphere 4 and operates inside the VMware ESX hypervisor.

Networking · 4 min read

Introduction to Private VLANs

2010.06.01

The concepts behind Private VLANs are in fact rather simple, but it is quite easy to get discombobulated in the details.