[Apologies for duplicate e-mails] Dear Colleagues, On Tuesday, 12 September 2006, there will be planned maintenance on the Routing Information Service (RIS). This work will increase one of the RIS database indexes, reducing some insertion delays. At 15:45(UTC), the RIS database will stop inserting data into the database. Between 16:00 and 16:30(UTC), we will stop insertion twice, each time for several minutes. All RIS tools except the Looking Glass will be unavailable for up to 15 minutes. Data collection will continue during this period. When the system restarts, it may be a few hours until all stored updates are inserted. We thank you for your patience in this matter and apologise for any inconvenience this may cause. If you have any questions about this work, please send an e-mail to ris@ripe.net. Regards, Erik Romijn RIS Operations RIPE NCC