VLAN and switching

To start, we will explain some things about  the switch´s ports:

To learn more, click de image:

Now, let´s speak a little bit about the broadcast domain and how it works;

A broadcast domain is a logical division of a computer network, in which all nodes can reach each other by broadcast at the data link layer. A broadcast domain can be within the same LAN segment or it can be bridged to other LAN segments.

In terms of current popular technologies: Any computer connected to the same Ethernet repeater or switch is a member of the same broadcast domain. Further, any computer connected to the same set of inter-connected switches/repeaters is a member of the same broadcast domain. Routers and other higher-layer devices form boundaries between broadcast domains.

Next exercise will help you to understand more  about the VTP, the VLAN trunking protocol:

And now, on this simple exercise, you have to select different cards and try to link the couples. On thsi exercise you will find physical objects all linked to the VLANs such a router, a switch or a cable:

Next we have a interactive video, where you can learn more about the multiples modes of VTP  that a switch has:

To finish this post, we show you a exercise as a resume of all the theory that we have seen before, but first we have a little bit more of theory for you about the differences between the trunk and acces modes:

Trunk mode:

A trunk allows pretagged packets to passthrough without changing the tag.

Acces mode:

The access port takes the packets it receives and retags them.

The second group thanks you for all the support reading this post.

We hope you have enjoyed it and you learned more thing about the VLANs.

Thank you!