• _{a couple of protocols that work together at the transport and network layers of the OSI 7 layer model}
  • _{IP is a network layer protocol (layer 3 of the OSI model)}
    • _{ensures all reachable network destinations can be uniquely and correctly identified}
    • _{IP addresses in the headers of IP packets are used by routers to determine the best path to be taken by each individual packet to reach its ultimate destination}
    • _{IP allows each packet ot be processed individually within the network (connectionless)}
    • _{IP does not guarantee packets will arrive in the right order or at all (unreliable)}
  • _{TCP is a transport layer protocol (layer 4 of the OSI model)}
    • _{ensures data being sent over the network is delivered accurately}
      • _{flow control}
      • _{acknowledgment of successful receipt of packets after error checking}
      • _{retransmission of packets}
      • _{proper sequencing of packets}