From e9870e71225111a8e0087270f9f60eea25baecca Mon Sep 17 00:00:00 2001 From: shockrahwow Date: Thu, 19 Sep 2019 10:08:26 -0700 Subject: [PATCH] naming for this lesson isn't the best --- 412/intra-net.md | 35 +++++++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) create mode 100644 412/intra-net.md diff --git a/412/intra-net.md b/412/intra-net.md new file mode 100644 index 0000000..e87f5ed --- /dev/null +++ b/412/intra-net.md @@ -0,0 +1,35 @@ +Topics: + +Focusing on what hardware(things really) is used to setup networks in different places. + +# Bridges + +Used to divide a network + + +# Ethernet networks + +> Hubs + +They basically just act as repeaters for Ethernet signals + +_With hubs we find that one message gets sent to everybody but only picked up and used by the intended receiver_ + + + +# Switches + +Associates ports w/ mac address of whatever is plugged into that port. +Reads the source/destination in the Ethernet frame header to create that association. + +This is much better because now the whole network doesn't get spammed like with hubs. +Also the collision domain lies between the switch and the host connected now. + + +# LAN Segment w/ Routers + +If we have two subnets next to each other: _routers_ allow comms between the two. + +# VLAN + +VLANs themselves are similar to subnets but really act as subnets for routers.