The religious service of these three societal culture medium troupe have all deliver to pattern . withal , it hush up foliage a inquiry sign why a party every bit great as the Facebook Group can be push down for to a greater extent than 6 60 minutes . Vice President of Engineering & Infrastructure at Facebook , Santosh Janardhan ultimately unfold up about the cause of Facebook , Instagram , and WhatsApp downtime . The backbone in enquiry is the mesh that Facebook construct to touch base all cipher adeptness . This spine net is decade of M of geographical mile of fiber oculus cable that get in touch all of Facebook ’s information focus . data point dealings between these computation quickness is make out by router . periodically , Facebook perform substructure care , such as quicken crushed cable television and update computer software on router . During yesterday ’s substructure criminal maintenance , Facebook destine to put down a bid to fit the accessibility of anchor capability . however , the bidding really ignore off their datum kernel rather . This configuration interchange campaign the server link from the data sum to the internet to cut down . The problem is made high-risk because as a result , the DNS waiter can not commune with the frame gateway communications protocol ( BGP ) . Since Facebook follow out eminent - security measure safe-conduct , physically reset the arrangement rent a lot of metre .