It looks like there was an issue with one of the ports on one of the LNSs for a while this afternoon. We are looking in to it, but it could be some sort of attack. Obviously this is never good, but this appears to be limited to half of one LNS.
This does look like a targeted attack
It looks like, in addition to the specific port on the LNS being impacted, there may have been some more general issues for routes on one of our peering points (via which the attack came in).
It seems to have subsided now. We are trying to investigate more on this, but it does not apparent to be related to the network restructure this morning, thankfully. This customer that was the target has been contacted.