Today we'll discuss routing as it pertains to computer networking and not woodworking. We can talk about the woodworking angle another day if desired.

If you think of a computer as a house, then computer networks are like neighborhoods. If you want to visit your neighbor, you can just walk next door and knock. But let’s say you want to visit your cousin in a completely different neighborhood. Then it involves more than just walking down one street. You'll be presented with intersections where you'll need to choose directions. Network routing is a list of these directions or, more accurately, the street signs.

When you get to an intersection (router), you look up your destination on the street sign (routing table) and make the turn. Then when you get to the next intersection you repeat the process (check sign, make turn). You do this as many times as necessary until you get to the final street (destination network) where you walk up and knock on the door (destination computer).

That's routing.

Anonymous
  • Who was it that turned that sign up side down so it pointed down the wrong road?

    Biggest most recent (amongst many many others) was Verizon and Cloudflare

  • The default route from my house to get anywhere is always the same. I must go left out the driveway, then right, and once there the router must tell me which way to my destination. But until I get to that default gateway it is all the same. Everyone in my neighbor is on the same LAN, they all have to get to the same gateway to get outta Dodge.

  • Ummm,

    How many Routes to the Cloud or Data Centre will there be?

  • Of course!  I love a nice dove tail joint.  Takes me back to the days of woodworking in school, and spending hours making something to take home for your parents for it to live in the back of the cupboard because in reality it looked like a melted welly.

  • All my routers are in the 'summer' workshop (an unheated garage, in Minnesota). The 'winter' workshop is in the basement and only large enough for carving, scrollwork and an old lathe. If I had a little more room I could maybe squeeze in a router table, but would need to insulate first.