RT Journal Article T1 Efficient caching through stateful SDN in named data networking A1 Mahmood, Ahsan A1 Casetti, Claudio A1 Chiasserini, Carla-Fabiana A1 Giaccone, Paolo A1 Härri, Jérôme AB Named data networking (NDN) is an innovative paradigm to providecontent-based services in future networks. As compared with legacy networks,naming of network packets and in-network caching of content make NDNmore feasible for content dissemination. However, the implementation of NDNrequires drastic changes to the existing network infrastructure. One feasibleapproach is to use software-defined networking (SDN), according to which thecontrol of the network is delegated to a centralized controller, which configuresthe forwarding data plane. This approach leads to large signaling overheadand large end-to-end delays. In order to overcome these issues, we propose toenable NDN using a stateful data plane in the SDN network. In particular, werealize the functionality of an NDN node using a stateful SDN switch attachedwith a local cache for content storage and use OpenState to implement such anapproach. In our solution, no involvement of the controller is required once theOpenState switch has been configured. We benchmark the performance of oursolution against the traditional SDN approach considering several relevant metrics.Experimental results highlight the benefits of a stateful approach and ofour implementation, which avoids signaling overhead and significantly reducesend-to-end delays. PB John Wiley & Sons SN 2161-3915 YR 2018 FD 2018-01-11 LK https://hdl.handle.net/10016/27247 UL https://hdl.handle.net/10016/27247 LA eng NO This work is partially supported by the H2020 5G-TRANSFORMER project (grant no. 761536) and the H2020 HIGHTS project (grant no. 636537). EURECOM acknowledges the support of its industrial members, namely, BMW Group, IABG, Monaco Telecom, Orange, SAP, ST Microelectronics, and Symantec. DS e-Archivo RD 20 may. 2024