It's a nice article and the animations are functional and aesthetically pleasing. I used to teach this on a whiteboard at my local community college. This is much slicker (and involves a lot less scribbling and erasing).

Spanning tree is an elegant protocol for the constraints it was invented under. Radia Perlman's poem-- particularly the last two stanzas-- also makes me very happy.

Aside: I enjoy the typographical error in the paragraph under the "Topology change notification" heading:

When a link fails, a connected fridge reachable...

Also a good opportunity to read about https://en.wikipedia.org/wiki/Radia_Perlman in general (she is mentioned in the blog of course).

This blog is an unbelievable gold mine of information about networking, Linux, and other concepts. It's what I wish my own blog was in my head, if I could somehow summon the time and creativity.

If you like watching the first animation, you can get it for the other diagrams with a well-known video game code.

Nice! Although not a fan of the sticky animation blocks since they take so much vertical space.

My old enemy.

Fantastic