IPv6 for future CCNAs - Part II

In our IPv6 for future CCNAs – Part I, we ended the article talking, very lightly, about IPv6 address types. Let´s go ahead and dig deeper into the concepts.

To recap, the IPv6 address types are:

IPv6 for future CCNAs – Part I

The History.

So we are running out (have ran out?) of IPv4 addresses. They have been with us since the very beginning, they were there during the 1980`s when everything was calm, and they stuck by us during the chaotic growth of the Internet during the 1990`s. There were some rumors, during the 2000`s, that they were going to run out soon, but something called Classless Inter-Domain Routing (CIDR) and Network Address Translation/Port Address Translation (NAT/PAT) saved our butts... for a while.

Spanning Tree Protocol, from a feature CCNA´s Perspective.

A little bit of history.

Before we talk about Spanning Tree Protocol, let's organize the different variants of STP. The original STP was developed by Radia Perlman while working for DCE back in 1990. At this time there were no switches yet, only bridges, but because bridges and switches technically do the same job -only switches do it more efficiently and have more features- they suffer from the same issues.