So What Happened - Reliance Downtime New York to London

A couple of days back I was talking to a good friend and a senior person in the Industry on what would happen if the Alexandria crash of 2008 happened again and how long will it take to recover. I understand that Reliance, has built spare capacities, their new network diagram for the global foot print



You will notice that there are 3 Landing Points in the USA.

Palo Alto called PAO001 / Los Angeles LAX002 and New York NYC005

The Palo Alto to Japan Link was working fine but for some reason the link between London and New York stopped working. Also no data was available from the LA002 to Japan Route so not sure if this pop is operational.

I am also not sure why the network between NYC005 and PAO001 was not routing. Though there is no comment from Reliance about the Downtime, and since the Downtime lasted between 1345 GMT on 14th April 2010 to 1939 GMT on 14th April 2010, it should not be a Cable Cut.

I am still trying to get a word from Reliance Communication on what had happened. This is my 2 cents from the understanding of their network. Though it is quite possible that the problem is on one of the routes from New York to London and the Redundant Route is now working or it could just be a NAP / POP issue.

I will keep updating this threat as and when I recieve information. As of now the Reliance network is routing fully and traffic is moving on the New york London Link.

The Diagnosis was done using multiple points of presence and public Traceroute / Ping Servers across the Globe and also using Looking Glass Toolkit on Flag Telecom's website to ascertain the location of the outage.