Radia Perlman's spanning tree protocol gets an interactive tour

An interactive tour of the spanning tree protocol

Radia Perlman's spanning tree protocol gets an interactive tour

Vincent Bernat's interactive guide to the spanning tree protocol lets you run a real RSTP implementation in your browser. Watch bridges elect a root, assign port roles, and recover from a cut link in under a second. It covers the protocol's history, Radia Perlman's famous poem, security concerns, and why RSTP still matters despite newer alternatives like BGP EVPN VXLAN.

I think that I shall never see a graph more lovely than a tree.
  1. stmw

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

  2. Hikikomori

    My old enemy.

  3. illamint

    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.

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2026-09-11