Virtualizing our Testlabs

Posted on by David Vassallo

The advantages of virtualizing are well known, so I won't go into much detail here. Personally, I have to use a lot of virtualization, especially when studying and testing. Nowadays we can virtualise or emulate anything. In this article I outline a menthod I used to emulate both cisco routers using GNS3, as well as … Continue reading Virtualizing our Testlabs

OSPF route failover

Posted on by David Vassallo

A colleague recently asked why, at a basic level, is dynamic routing such as OSPF useful? The very first thing that comes to mind is of course route failover. That is, when a network contains multiple routes to the same network, dynamic routing automatically will "failover" to an alternative route when the primary route is unavailable. … Continue reading OSPF route failover