Exploiting path diversity for networked music performance in the Publish Subscribe Internet

The high bandwidth and low delay requirements of Networked Music Performance (NMP) often lead to doubts about its feasibility in wide area networks. Multipath routing with Quality of Service (QoS) constraints is one way to meet these requirements, as it offers bandwidth aggregation while keeping latency low. However, IP does not natively support multipath QoS routing, requiring complicated extensions to network operation. In contrast, the Publish-Subscribe Internet (PSI) architecture, an Information-Centric Networking (ICN) approach, natively supports multicast, centralized path selection and source routing, all the main elements needed for multipath QoS routing. In this paper, we discuss the implementation of multipath QoS routing in PSI and experimentally evaluate its benefits for NMP services.