What benefits does NDN have in supporting mobility

Abstract

Inspired by forwarding hint and previous IP mobility solutions, we adopt forwarding hint, which intent to solve scalability problem, to support producer mobility. In this paper, we point out how those new elements, such as cache, content-oriented security, content-centric data transmission, benefit mobility. We implement a prototype to analyze the benefits that NDN has in supporting mobility. Our analysis and evaluation conclude that during mapping updating delay following mobility, only popular contents can get benefits from caching while unpopular contents gain little. What's more, only if the content is able to be accessed by partial consumers, caching would amplify the benefits and extend receivers to the rest of consumers, which has significant contribution during routing convergence or mapping updating delay after mobility happens.