Content Routers: Fetching Data on Network Path
In this paper, the authors present an in-network caching architecture based on content routers to improve the traffic efficiency in the Internet. The main idea is to provide a forwarding fabric where data requests are forwarded towards the closest caches in the network path. Conversely, data chunks from the servers are cached in the content routers along the path, serving further data requests. In addition, content routers store a neighborhood mapping of available routers, leveraging resource discovery in the network proximity. Some benefits of the architecture include multi-source content retrieval, better traffic efficiency and gradual deployment.