IP multicast
EUMETCast uses the DVB-S MPEG2 stream for encapsulating IP frames (IP over DVB). At this IP layer, IP Multicast techniques are used for distributing the file based content. For this purpose, TelliCast (an IP multicast software from Newtec (formerly Tellitec)) is used. In 2014 EUMETCast was migrated to a DVB-S2 transponder, which allows for higher bandwidth rates, and in 2017 a second DVB-S2 transponder was added for the European service providing Sentinel satellite data.