olemus
OSI mudeli lülikihi (kihi 2) alumine alamkiht, mis
jaotab arvutite vahel pakettide edastuse
ühist füüsilist meediumi (igal arvutil on oma MAC-aadress)
ning annab adresseerimis- ja pääsumehhanismi;
levinuim protokoll on Ethernet

piltlikult
https://i.ytimg.com/vi/2Q13ZoSQOzY/hqdefault.jpg

https://slideplayer.com/slide/8132476/25/images/3/Various+physical+layer.jpg

ülevaateid
https://en.wikipedia.org/wiki/Medium_access_control

http://ecomputernotes.com/computernetworkingnotes/communication-networks/describe-the-mac-layer-protocols

http://www.cs.unibo.it/~lbedogni/files/vario/802.15.4-summary.pdf

http://www.ieee802.org/3/as/public/0503/4d0_1_CMP.pdf

https://www.youtube.com/watch?v=aG5rO6sck1Q

turvalisus
https://arxiv.org/pdf/1501.02601.pdf