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+# Uvod u mreze
+
+# OSI model
+
+![OSI model](slides/mrezeosi/osi.jpeg)
+
+# Switch i ruter
+
+![Switch vs Router](slides/mrezeosi/switchandrouter.jpeg)
+
+# Switch
+
+- Samo gleda MAC adresu
+- MAC adresa je jedinstvena za uredjaj
+- Zna samo da prosledi paket na istoj LAN mrezi
+- Nije potrebno da se podesava, jednostavan uredjaj
+
+# Ruter
+
+- Samo gleda IP adresu
+- Jedan uredjaj moze imati vise IP adresa
+- Zna da nadje put do krajnje lokacije
+- Podesavanje je potrebno, pametan uredjaj
+
+# Primer mreze
+
+![Primer](slides/mrezeosi/network.jpeg)
+
+# Slojevi
+
+![Encapsulation](slides/mrezeosi/encapsulation.jpeg)
+
+# ARP
+
+![ARP](slides/mrezeosi/arp.jpg)
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