Tag: Spanning-tree

This topic seems to be coming up on the practice tests pretty frequently so it’s probably worth a quick review.  There are 4 types of spanning tree protection mechanisms that… Read more »

It should be obvious by now that there are really two types of spanning-tree topologies.  One where all switches run a single spanning-tree instance (common spanning-tree) and one where a… Read more »

802.1d has some downsides to it.  Namely, it was slow to converge to a new topology taking anywhere from 30 to 50 seconds to do so.  The main aim of… Read more »

I haven’t talked about it much yet, but the actual STP convergence time is fairly slow.  This is because of the amount of time that STP spends transitioning ports from… Read more »

So once spanning-tree has done its initial build, we need to talk about what happens when the topology changes.  This happens any time that a port goes forwarding or goes… Read more »