- Read today’s lesson notes (below)
- Review yesterday’s lesson notes
- Complete today’s lab
- Read the ICND2 cram guide
Enhanced Interior Gateway Routing Protocol (EIGRP) is a proprietary Interior Gateway Protocol (IGP) that was developed by Cisco. EIGRP includes traditional Distance Vector characteristics, such as split horizon, as well as characteristics that are similar to those used by Link State routing protocols, such as incremental updates.
Although EIGRP has Link State routing protocol characteristics, EIGRP falls under the Distance Vector routing protocol classification and is referred to as an advanced Distance Vector routing protocol instead. EIGRP runs directly over IP using protocol number 88.
Today you will learn about the following:
- Cisco EIGRP overview and fundamentals
- EIGRP configuration fundamentals
- EIGRP messages
- EIGRP neighbour discovery and maintenance
- Metrics, DUAL, and the topology table
- Equal cost and unequal cost load sharing
- Default routing using EIGRP
- Split horizon in EIGRP networks
- EIGRP stub routing
- EIGRP route summarisation
- Understanding passive interfaces
- Understanding the use of the EIGRP router ID
- EIGRP logging and reporting
This lesson maps to the following CCNA syllabus requirements:
ü Configure and verify EIGRP (single AS)
ü Feasible Distance / Feasible Successor routes / Reported Distance / Advertised Distance
ü Feasibility condition
ü Metric composition
ü Router ID
ü Auto summary
ü Path selection
ü Load balancing
- Equal
- Unequal
ü Passive interfaces