Lastest information on EUREX T7Market and Reference Data Interfaces (EMDI, RDI, EOBI) Handlers is available online at OnixS website.
Programming Guide for the latest version is always available online.
Documentation uncovering aspects of Eurex T7 system documentation can be found on the T7 system documentation. It's highly recommended to get general understanding on how client systems connect to and process data sent over Eurex market data services.
Lost Multicast Packets Troubleshooting Guide represents most recent version of online guide helping to diagnose and resolve multicast packets loss.