With apologies to J.R.R. Tolkien, and with sympathy for all those forced to cope with the Token Ring architecture:

Three Rings for the researchers in their ivory tower in the sky
Seven for dread IBM in its halls of stone
Nine for schools with networks doomed to die
One for the PHB who cut the budget to the bone
In the land of latency where the packetloss doth lie.
One Ring to fool them all, One Ring to crash them
One Ring to fry their NICs, and from the network smash them
In the land of latency where the packetloss doth lie.