85: George is Asleep

Here’s some of the new Networking for System Administrators, because while the Laserblasted Kickstarter ends today I am utterly sick of shilling it.

Think of the network as a conference room. At the physical layer you have a table and chairs. The room is a broadcast domain. Each chair is a host, with a unique MAC address.

As an IP network, the table can hold a number of chairs equal to a power of two. Each chair has a unique IP address. Two of the chairs, the top and bottom addresses, are ricket...