According to their maintenance postings, RBX was an upgrade problem to the software driver of the optical fiber : "RBX: We had a problem on the optical network

According to their maintenance postings, RBX was an upgrade problem to the software driver of the optical fiber : "RBX: We had a problem on the optical network that allows RBX to be connected with the interconnection points we have in Paris, Frankfurt, Amsterdam, London, Brussels. The origin of the problem is a software bug on the optical equipment, which caused the configuration to be lost and the connection to be cut from our site in RBX. We handed over the backup of the software configuration as soon as we diagnosed the source of the problem and the DC can be reached again. The incident on RBX is fixed. With the manufacturer, we are looking for the origin of the software bug and also looking to avoid this kind of critical incident. "