Tuesday, January 27, 2015

#facebookdown


FACEBOOK OUTAGE: A BGP APPROX

Facebook was down on 27/01/2015, as the company said, it suffered a self-inflicted outage lasting an hour on Tuesday that made its site inaccessible to users worldwide.


When I saw this new I wanted to know how this outage have affected the Internet ASes and how them reacted to this issue.

Facebook has the autonomous number: AS32934, and as you can see in the next graph there are a lot of announcements per hour between 6.10 am and 7.10 am GMT aprox. (thanks to RIPEstat service),


You can access to the list of announcements if you click on the graph. Processign the json data there a lot of announcement and witdrawns of prefixes belonging to facebook, per example:


                    "target_prefix": .............................
                    "target_prefix": "2a03:2880:f01f::/48"
                    "target_prefix": "2a03:2880:f022::/48"
                    "target_prefix": "31.13.70.0/24"
                    "target_prefix": "31.13.73.0/24"
                    "target_prefix": "31.13.82.0/24"
                    "target_prefix": "31.13.93.0/24"






And here you can see how the Internet tried to converge to reach facebook in vain, because it was an internal failure.