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Алгоритм, заложенный в основу STP, был разработан в 1985 году Радией Перлман. Ей дали 1 неделю на разработку алгоритма. Она сделала это за 1 день, а в оставшееся время описала алгоритм в виде стихотворения[3]
I think that I shall never see
A graph more lovely than a tree.
A tree whose crucial property
Is loop-free connectivity.
A tree that must be sure to span
So packets can reach every LAN.
First, the root must be selected.
By ID, it is elected.
Least-cost paths from root are traced.
In the tree, these paths are placed.
A mesh is made by folks like me,
Then bridges find a spanning tree.
— Radia Joy Perlman
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