L2 Basics: Configuring an EtherChannel

Today we’re going to take a look at how to configure an etherchannel between two Cisco Switches. What is an etherchannel? It’s a way of taking multiple independent links and bundling them together, so that they appear as one logical connection between two devices. Etherchannels are…

Odd Behavior of Protected Switchports

I ran into an interesting issue recently, which was caused by use of the switchport protected command…. So I use a pair of Cisco 2960-8TC-L switches at home, for both my home network and lab. A few months back I ran a bunch of ethernet cabling within my house,…

Quick Tips for Better BGP

A while back I wrote some basic information on how to get started implementing multi-homed internet using BGP. The details and configurations listed in that post are enough to get the connection up and running – but not quite in an ideal state. So today I want to share some…

BGP: Getting Started with Multi-homed Internet

A few years back I worked for an organization that had a single 100Mb Internet connection. Not bad for just typical corporate traffic, but we also hosted our production web site out of that location as well. An incident occurred where our website was down due to Internet issues during…