The NCC has recently learned about a number of European routing changes implemented around July 1st. An incomplete list of these is (in no particular order) - termination of the EASIGATE T1 link CERN-Cornell and re-homing of the link to Washington DC as an EBONE link - US connectivity from GARR/INFN to the US moved from the CERN US link to a link between Italy and ESnet in the US - intra-European connectivity to/from GARR/INFN moved to ? - several bi-lateral agreements to exchange traffic via EuropaNet - starting gateway traffic between EuropaNet and EBONE Since then the NCC has had a number of enquieries about observed routing instabilities. Partly these were due to link failures complicating the situation. The upshot of all this is that the European routing situation has changed quite a bit and you should expect instabilities and unusual routes. If you experience reachability problems or poor performance you should contact your service provider. Regards Daniel Karrenberg RIPE NCC Manager