ETSI is organising the 1st (IPv6 over the Timeslotted Channel Hopping mode of IEEE 802.15.4e) Plugtests™ in Prague, Czech Republic from 17 to 19 July 2015 with the support of the Internet Engineering Task Force (IETF) 6TiSCH Working Group and the H2020 Festival project. This event will be co-located with the 93rd IETF meeting (20 – 24 July 2015). The 6TiSCH Plugtests™ event will focus on assessing the interoperability of different implementations based on the draft-ietf-6tisch-minimal specification.