Well spotted. Also, the four trochaic lines list the steps of the tree-building ...

elwin on July 16, 2011 | parent | context | favorite | on: Speed matters: how Ethernet went from 3Mbps to 100...

Well spotted. Also, the four trochaic lines list the steps of the tree-building process, and the iambic couplets explain the purpose of it all. She's using meter to reflect a semantic division.