OSPF

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Across
  1. 2. Open Shortest Path First
  2. 5. 255.255.255.255
  3. 7. Broadcast Multi-access
  4. 8. Non-Broadcast Multi-Access
  5. 10. Checks for database sync between routers
  6. 11. Discovers neighbors and builds adjacency between them
  7. 13. Backup Designated Router
Down
  1. 1. Acknowledges the other packet types
  2. 3. Point to point
  3. 4. Contains info on link cost
  4. 5. Sends specifically requested link-state records
  5. 6. 64
  6. 9. 110
  7. 12. Requests specific LS records from router to router
  8. 14. Designated Router