Simula is moving from the old office building in Fornebu to its new premises in downtown Oslo. The NorNet Core tunnelbox at the Simula site will therefore have a planned downtime from tomorrow to approximately Friday or possibly early next week. The downtime also affects the gatekeeper oesthorn.nntb.no, which will have no DNS for the internal .nornet domain during the tunnelbox downtime. Furthermore, since the tunnelbox connects the gatekeeper to the other sites, all other sites will not be reachable from the gatekeeper (but running as normal) as well. There may also be short network outages due to reconfiguration of the Simula networks and ISP connections during the next few days.