Cache Performance Analysis of Virtualized Router on Virtual Content-Centric Networks

Abstract

Content-centric networking (CCN) is one of the major proposals for realizing information-centric networking. CCN routers cache forwarded data in a buffer memory called the ContentStore (CS). Virtual content-centric networking (VCCN), which enables the construction of multiple virtual networks (called VCCN slices) on a content-centric network, has been recently proposed. When multiple VCCN slices are constructed, the performance of each VCCN slice and that of the entire network are strongly affected by the CCN routers' CS allocation to VCCN router instances in VCCN slices. In this paper, we analyze the effects of CS allocation methods and content request patterns in VCCN slices on the performance of each VCCN slice and that of the entire network. Through several numerical examples, we show that when content request patterns are heterogeneous, a hybrid resource allocation method is effective in terms of both network fairness for VCCN slices and overall network performance.