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1 - OSI Model - Coggle Diagram

- - - - Distance vector
        
        Maintains a list of destination networks along with metrics of direction and distance as measured in hops
        
        Routing Information Protocol (RIP)
        
        Interior Gateway Routing Protocol (IGRP)
        
        Enhanced Interior Gateway Routing Protocol (IGRP)
      - Link state
        
        Gather router characteristics, such as speed, latency, error rates, and actual monetary cost for use.
        
        Open Shortest Path First (OSPF)
        
        Intermediate System to Intermediate System (IS-IS)
    - - Path vector
        
        Make next hop decisions based on the entire remaining path to the destination
        
        Border Gateway Protocol (BGP)
        
        Maintains a routing table of the Autonomous Systems (AS) (collection of IP networks and routers under the control of a single organization that presents a common routing policy) across the internet.
  - - - First 3 bytes of MAC address = Organizationally Unique Identifier (OUI)
    - - Ethernet (IEEE 802.3)
  - - - Simplex = One-way communication
      - Half-duplex = Two-way communication, but only one direction can send or receive data at a time
      - Full-Duplex = Two-way communication, in which data can be sent and received in both directions simultaneously