Jordi Ortiz | Searcharxiv

arXiv2020

SDN enabled Information Centric Networking (ICN) as a Service prefetching mechanism for HyperText Transfer Protocol (HTTP) based services. The scalable video streaming case

The importance of HTTP in today's networks isundisputed. As a solution to enhance QoS and enhance scalability CDN networks have been designed and deployed. Recently, anew paradigm known as ICN has been envisioned focusing the network routing on the content itself instead of the geographical attachment of addresses. Software Defined Networkings (SDNs) have been researched for the last 10 years as enablers of FutureInternet (FI) architectures in general and of ICN in particular. We have already proposed the Information Centric Network as a Service (ICNaaS) architecture to provide with end-to-endHTTP ICN alike transmission with HTTP in-network caching which has been thoroughly evaluated in this paper. This paper also proposes a nouveau mechanism, which we have named prefetching mechanism, to enhance data transmission rates for first requesters that can usually not benefit from previous access to the same content. To evaluate and demonstrate the possibilities offered by the proposal H.264/SVC video streaming with DASH has been employed.

cs.NI↗

arXiv2017

Deploying SDN in GÉANT production network

Since the demand for more bandwidth, agile infrastructures and services grows, it becomes challenging for Service Providers like GÉANT to manage the proprietary underlay, while keeping costs low. In such a scenario, Software Defined Networking (SDN), open hardware and open source software prove to be key components to address those challenges. After one year of development, SDX-L2 and BoD, the SDN-ization of the GÉANT Open and Bandwidth on Demand (BoD) services, have been brought to the pilot status and GÉANT is now testing the outcomes on its operational network. In this demonstration, we show BoD and SDX-L2 "going live" at the GÉANT production infrastructure. The pilots run on the same underlay infrastructure thanks to the virtualization capabilities of the network devices. Provisioning of the services is covered during the demo. In the final steps of the demonstration, we show how the infrastructure is able to automatically manage network events and how it remains operational in the case of fault events.

cs.NI↗