BUSI 4404 Lecture Notes - Lecture 5: Address Resolution Protocol, Routing Table, Interior Gateway Routing Protocol
30 May 2017
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Document Summary
Originally developed as a single internetworking protocol by vint cerf and bob. Most common protocols of the internet and in lans, wans and backbone networks. Used in time sensitive situation for control messages, or when reliability is handled by the application layer. Ip version 4 (ipv4: most common version of ip used, 32-bit addresses, exhaustion of address space. Ip version 6 (ipv6: 128-bit addresses, slowly being adopted due to the ipv4 exhaustion. Ipv4 packet: 160-193 bits (20-24 bytes) of overhead, options field rarely used. Ipv6 packet: fixed header, 320 bits (40 bytes) of overhead. Transport layer functions: linking to the application layer. Breaking up large files into smaller segments (and putting them back together) Segments may be passed individually to application layer of after reassembly. How large the segments: size depends on the network and data link layer protocols, maximum segment size (mss) is negotiated during tcp handshake, session management.
