Heavy Networking Heavy Networking 565: In Defense Of EIGRP
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Mar 5, 2021 Zig Zsiga, a network engineer and the voice behind Zig's Network Design Podcast, joins to discuss the merits of EIGRP. They debate whether EIGRP needs defending and highlight its ease of configuration compared to OSPF. The conversation dives into design considerations, scalability challenges, and practical applications, including home lab setups and SD-WAN integration. They also touch on IPv6 address allocation intricacies and EIGRP's role in efficient routing and convergence, making a compelling case for its continued relevance in modern networking.
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OSPF Design Challenges
- OSPF requires careful design, especially at scale, considering multi-area, ABRs, and route summarization.
- Mistakes in OSPF design, like misplacing an ISDN backup line, can lead to traffic convergence issues.
Marine's EIGRP Configuration
- A junior Marine configured EIGRP with auto-summary and many network statements, despite misconfigurations, it worked.
- This highlights EIGRP's flexibility and forgiveness, unlike OSPF, which demands careful design, especially at scale.
EIGRP Summarization
- Leverage EIGRP's interface-based summarization for flexible network design.
- Ensure your IP addressing scheme allows for effective summarization, especially with a default route.