Today the topic about right way area numbering was created.
https://www.reddit.com/r/networking/comments/a0nug1/ospf_area_numbering/
And my question in the subject. Why use multiple OSPF areas in contemprorary network designs? Most L3-swithes support >10k prefixes, even low-end Mikrotik can process at least 5k routes. What's the theoretical limit for links in one area for current 1GE and greater networks?
The issue is about ISIS too.
And I know practices to use EBGP instead OSPF inter-area links.
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