CHESS: An application-aware space for enhanced scalable services in overlay networks

Abstract

Abstract-We introduce in this paper CHESS, an applicationaware space for enhanced scalable services in overlay networks. In this new space, the proximity of peers is determined according to a utility function that considers the network parameters (e.g., delay, bandwidth, and loss rate) impacting application performance. We motivate the need for this new notion by showing that the proximity in the delay space does not automatically lead to a proximity in another space (e.g., space of the bandwidth). For determining the proximity in CHESS, network parameters must be estimated easily and scalably. Therefore, we use the matrix factorization approach for estimating the delay and loss parameters. Besides, we propose a scalable model that estimates the bandwidth among peers using the bandwidth of the indirect paths that join them via a set of landmarks 1 . Our idea is that an indirect path shares the same tight link with the direct path with a probability that depends on the location of the corresponding landmark with respect to the direct path or any of the two peers subject to bandwidth inference. The results show that characterizing the proximity in CHESS provides a much better quality than that obtained when using the delay proximity for large file transfer applications. The whole study is supported by real measurements carried out over Planetlab.

A Survey on Video Streaming in Multipath and Multihomed Overlay Networks

“…Naturally, overlay networking is a virtual network that is built on top of another network, without any additional infrastructure usually by using software to create layers of network abstraction that can be used to run virtualized network layers to provide or support new services. The overlay network's purpose is to add missing features or improves performance [60] and security [61] without a complete redesign of the network. Examples of overlay network deployments include virtual private networks (VPNs), content delivery networks (CDNs), and voice over IP (VoIP).…”