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content/notes/01-network and hardware protocols.md
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@ -24,4 +24,9 @@ you can configure the swtich to send the packets to only the correct address
Network Layer ≡ IP layer Network Layer ≡ IP layer
Port number distinguishes addresses at the IP layer Port number distinguishes addresses at the transport/application layer.
ARP - to find destination MAC address given IP address
- send broadcast message to everyone - who had this IP address? What is your MAC address
- the store the results of the MAC:IP pairing
-