Module 3
OSPF in One Area
Neighbour, database, calculation. The sequence, then three labs where one stage of it is missing.
5 activities~79 min
In this module
- Name the three stages between two routers meeting and a route appearing
- Read an adjacency state and say what it rules out
- Advertise a LAN into OSPF without forming adjacencies on it
- Originate a default route into an OSPF domain
Activities
Lesson
How OSPF builds a routing table
What each router learns, and why it has to learn all of it.
12 min
Lab
OSPF single-area
Two routers, one area, from nothing.
20 min
Lab
OSPF passive user LAN
Advertise a LAN into the area without inviting adjacencies onto it.
20 min
Lab
OSPF default route
One router that knows the way out, telling everyone else.
20 min
Sign in to take the knowledge checks, run the labs and track your progress.
Curriculum topics
Each topic page lists every lesson, quiz and hands-on lab that covers it, plus how it maps onto the CCNA and Network+ blueprints.