Studying

ICND 2.

VLANs

Stands for Virtual LAN.   LAN sounds a lot like LAND.   So in my mind I see a giant open field, with LEGO people all over the place.   There are vertical stacks, set up in cookie cutter fashion above and below this world.  This stack of worlds represents one device. 

There is a person standing in the middle of the field, screaming profanities constantly.  Several LEGO people are around, all griping at the person who is screaming profanities.  The man screaming profanities is broadcasting.  One person decides they don’t like the screaming and runs towards a giant elephant trunk.  This trunk leads to different areas.   As the person walks over to jump in the trunk, a large wooden chest is thrown on the guys head.  The chest is the VLAN trunking header.   As the guy jumps into the trunk, and off to a different device, he can still hear the man screaming profanities. 

As he travels through the trunk, he can see other LEGO people flying through, but can’t hear what they are saying.  Different VLANS share the same trunk, but those packets can’t communicate with each other.  As the guy pops out onto the new device, he can still hear the man screaming profanities. 

Something I used to help me remember the entire idea of VLANs.