DOD (Department Of Defense Defense) Model: Structure can basically be seen as a concentrated version of OSI: ----------------------- ------ DOD -------------------- 1.Process / Application ----------------- ---> Application layer -----------------------------> Application / Presentation / Session2.host - to - Host- ---------------------------> Host to the host -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- -> Transport3.InetNet --------------------------------------> Network interconnects - --------------------> NetWork4.Network Access ------------------------- -> Network access layer ----------------------> Data Link / Physical ------------------ -------------------------------------------------- The protocols of the layers are basically as follows: Most are still seen, introduce a few usually not paying attention: 1. LDP: Line Printer Daemon line printer guardian; 2.Ospf: Open Shortest Path First, one Internal Gateway Agreement (Interior Gateway Protocol, IGP), a link status routing protocol for decision routes within a single autonomous system (AS). OSPF creates a link status database through the status of the network interface between the router, generates the shortest path tree, each 3.OSPF router uses these shortest path constructs routing table 4.FDDI: Fiber Distributed Data Interface, fiber distributed data interface, The FDDI protocol is applied to the LAN, and the device and / or workgroup is connected at a rate of 100 Mbps using the cable. FDDI is often used as a backbone of LAN. In addition, some protocols do not have: 1. Application layer: TFTP: Simple File Transfer Protocol 2. Network Interconnect: ARP, AddRES Resolution Protocal Address Resolution Agreement; RARP : Reverse Addres Resolution Protocal, Reverse Address Resolution Agreement; Bootp: BootP Services is Bootstrap Protocol, is a remote start-up protocol, and the DHCP service we often use is expanded by BootP services. The BOOTP protocol uses the UDP 67/68 of the TCP / IP network protocol. BootP is mainly used for clients with no disk from the server to get its own IP address, the server's IP address, startup image file name, gateway IP, etc.
