AT&T, the IPv6 service provider for the IETF, is planning a major change in their IPv6 network on Thursday, 21 February, at 8am Eastern for one hour duration. All services are anticipated to be back up and running at 9am Eastern. We are sorry for this temporary IPv6 service interruption and for any inconvenience this may cause you. Ray Pelletier IAD _______________________________________________ Ietf@xxxxxxxx http://www.ietf.org/mailman/listinfo/ietf