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