The large KPN-interference that South Holland in the night of Tuesday and Wednesday hit, it was a result of the failure of cross-connect equipment, which 6200 data lines come together. KPN has no backup for this ‘cross-connects’.
The relevant cross connect equipment in the Waalhaven in Rotterdam, and went to piece during maintenance by the end of Tuesday. In the Waalhaven come 6238 lines together. The node processes every second 10Gbit of data. These nodes, of which there are about a hundred in the Netherlands, connecting each of the thousands of data lines to the central lines.
The cross connect equipment has no backup, confirms a spokeswoman for KPN opposite Tweakers.net. “The cross connects of KPN itself consist of two parts, the other work can take over. In this case, led to maintenance work on one part to a failure in the other part of the cross connect.” KPN claims that these failures rarely occur. The cross-connects are provided by Alcatel-Lucent. Work cross-connect nodes are suspended until the investigation into the failure is completed.
The fault in Zuid-Holland came on from half two in the night of Tuesday on Wednesday. The KPN-interference had large effects; metro’s reason, while emergency services together could not achieve because of the communications networks P2000 and C2000 flat layers. Wednesday, it appeared that the Ministry of Justice investigation into the failure set.