our provider Killer Creations have mailed me the following message
"Dear Customer
Schedule
Date: 03/06/2009
Time: 04:00 - 05:00
During the above period we will be replacing our main networking rack in Telehouse North Data Centre with a new Usystems rack. We will also be taking the opportunity to upgrade our Cisco 6509 with a new Cisco 6504-E Sup720-3BXL to further expand our network from a centralized location.
This is a fairly major upgrade due to the new router configuration but we don't expect it to take longer than 1 hour. If for any reason problems occur during the upgrade, the original configuration will be restored before 6am.
Kind regards"