Internet Architecture (IMAGE) U.S. National Science Foundation Caption NDN keeps the hourglass-shape of the protocol architecture but changes the narrow waist from naming host/locations to naming data chunks that applications need. Credit Jeff Burke, UCLA Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.