Is EBGP Really Better than OSPF in Leaf-and-Spine Fabrics?



Using EBGP instead of an IGP (OSPF or IS-IS) in leaf-and-spine data center fabrics is becoming a best practice (read: thing to do when you have no clue what you’re doing). The usual argument defending this design choice is “BGP scales better than OSPF or IS-IS”.

from http://blog.ipspace.net/2018/06/is-ebgp-really-better-than-ospf-in-leaf.html
https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh3hWzp77aU19BzLPRmNMTRNI61uUsJndOsd6MTXfTPp-XiBwPYueYrcjiIgXLqZ0sH9Us9LR2SQZn1X6P-mb-JakKWgL8IwGor1J0-63ZZ0iz4PxWoLb5zHHVyZXIIaGN1DDnQl1m00npx/s1600/Paper.EVPN+diagrams.3.png

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