Abstract
The major advantage of information-centric networking (ICN) lies in in-network caching. Ubiquitous cache nodes reduce the user’s download latency of content and the drain of network bandwidth, which enables efficient content distribution. Due to the huge cost of updating an entire network infrastructure, it is realistic for ICN to be integrated into an IP network, which poses new challenges to design a cache system and corresponding content router. In this paper, we firstly observed that the behavior pattern of data requests based on a name resolution system (NRS) makes an ICN cache system implicitly form a hierarchical and nested structure. We propose a complete design and an analytical model to characterize an uncooperative hierarchical ICN caching system compatible with IP. Secondly, to facilitate the incremental deployment of an ICN cache system in an IP network, we designed and implemented a cache-supported router with multi-terabyte cache capabilities. Finally, the simulation and measurement results show the accuracy of proposed analytical model, the significant gains on hit ratio, and the access latency of the hierarchical ICN cache system compared with a flat cache system based on naming routing, as well as the high performance of the implemented ICN router.
Highlights
Due to the advantages of multicasting, mobility, security, and caching, information-centric networking (ICN) is considered an effective way to improve the existing network from network architecture level [1]
The mechanism of content addressing based on a hierarchical name resolution system (NRS) makes an uncooperative ICN cache system implicitly form a hierarchical structure. As another crucial component of a caching system, an ICN router is supposed to be designed with multiple factors including IP compatibility, a communication interface with an NRS, a transparent caching function based on the chunk level rather than the packet level [13], and an ICN transport protocol stack to ensure reliable service for users
We propose a modeling approach to analysis this hierarchical cache system, which considers the correlation of arriving requests between adjacent cache nodes under different caching strategies
Summary
Due to the advantages of multicasting, mobility, security, and caching, information-centric networking (ICN) is considered an effective way to improve the existing network from network architecture level [1]. The content-centric network (CCN) [8,9], the most widely studied ICN paradigm whose routers forward user’s requests to the right port computed by content name, adopts a routing-by-name mechanism. The mechanism of content addressing based on a hierarchical NRS makes an uncooperative ICN cache system implicitly form a hierarchical structure As another crucial component of a caching system, an ICN router is supposed to be designed with multiple factors including IP compatibility, a communication interface with an NRS, a transparent caching function based on the chunk level rather than the packet level [13], and an ICN transport protocol stack to ensure reliable service for users.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
