[craigj2k12]

Originally Posted by jempalmer

Why can VM not give an explanation as to why this is happening?

Mark_Wilkin on VM forum

Started off with:

10-10-2012 Link

Hi I've spoken to the Networks team about this and it appears Cogent made some changes around the 23rd of September that are adversely affecting Virgin Media users. We're making some changes to our peering links with Cogent over the next few days, could you monitor your connection and tell us if things improve?

Thanks

then

15-10-2012 Link

F002199132 - Hi we've identified an issue with our peering links to a company called Atrato who we publically peer with in Amsterdam and London. They were pushing abnormal amounts of traffic through our public peering links at LINX, overloading them. So we've shut down both of our peering links to Atrato at LINX which should resolve this issue. Meanwhile we're going to continue to investigate the root cause of this problem. Could you please continue to give us feedback on this so we can be sure the issue is resolved.

Thanks

then

25-10-2012 Link

Hi it looks like we've swapped an issue with Cogent for an issue with Telia. I'm chasing the network team to get them to get in touch with Telia but in the mean time can you all post a Traceroute, Pathping and WinMTR traces (instructions here) if you're having issues. Having a bunch of recent evidence to pass along to Telia will hopefully help push this along.

Thanks

then

26-10-2012 Link

And some even better news, we've completed some work today that's allowed us to re-open the peering link with Cogent so that should now not be overloaded. Could you check tonight and over the weekend and tell us if things have improved.

Thanks