Some comments on hourglasses

Rui L. Aguiar
2008 Computer communication review  
The hourglass concept has been undisputable ruler of networking visions on the last years. As network evolution is now a hot topic, this article aims to reflect on this concept, highlighting its current shortcomings, and suggesting its evolution.
doi:10.1145/1452335.1452346 fatcat:nbpcdcij7bbc7dli2kwlrqex7u