1. Overview
   1. Features
2. 2 Types of packets
   1. Message
      1. command
         1. 1 - Request
         2. 2 - Response
      2. Max of 25 Entry for Routing Update (each 20 Bytes)
   2. Requests
      1. Full Update requests
         1. one routing entry family ID set to 0
         2. metric set 0
      2. Partial Update - List only the Network
3. Metric
   1. RIPv2 increments the metric when sending updates
   2. Install the Metric received
   3. 15 being the largest valid metric
   4. 16 considered to be infinity
   5. install equal-cost route - 4 (by default)
4. Convergence and Loop Prevention
   1. Counting to infinity
   2. Split Horizon
   3. Split Horizon with Poisoned Reverse
   4. Route Poisoning
   5. Triggered Update
   6. Timers
      1. Update (30sec.)
      2. Invalid After (180sec.)
      3. Holddown Timer (180sec.)
      4. Flushed After (240sec.)