Module 5
EIGRP and the Feasible Successor
A protocol that keeps a spare route verified in advance, and the one condition a spare must satisfy before it is allowed to be used.
5 activities~90 min
In this module
- Distinguish reported distance from feasible distance
- State the feasibility condition and explain what it prevents
- Explain why variance sometimes appears to do nothing
Activities
Lesson
EIGRP and the feasible successor
Two distances, one condition, and instant failover.
10 min
Lab
Bring up two EIGRP routers
The autonomous system number, and what happens when it differs.
20 min
Lab
Fix the middle router in a chain
Three routers, one of them not participating.
20 min
Lab
EIGRP multi-path
Two paths of different cost, and getting both installed.
20 min
Lab
EIGRP variance
The multiplier, and what it cannot promote.
20 min
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Curriculum topics
- Routing
- Dynamic Routing
- Troubleshooting
Each topic page lists every lesson, quiz and hands-on lab that covers it, plus how it maps onto the CCNA and Network+ blueprints.