Krunali Jainkrunali.hashnode.dev·Jan 12, 2024CCNA Key NotesProtocols Host Communications Terminology PDUs: Protocol Data Units When 2 hosts communicate with each other, they exchange the PDUs.PDU is the entire communication all the way from Layer 7 to Layer 1 of OSI stack. This further can be divided into...38 readsccnaAdd a thoughtful commentNo comments yetBe the first to start the conversation.