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Easy: someone fat-fingered SS7 the same way someone fat-fingered BGP. https://en.wikipedia.org/wiki/Signalling_System_No._7 https://en.wikipedia.org/wiki/Signa
by adrianpike 6y ago
Easy: someone fat-fingered SS7 the same way someone fat-fingered BGP.
https://en.wikipedia.org/wiki/Signalling_System_No._7 https://en.wikipedia.org/wiki/Signalling_System_No._7
https://blog.cloudflare.com/how-verizon-and-a-bgp-optimizer-knocked-large-parts-of-the-internet-offline-today/ https://blog.cloudflare.com/how-verizon-and-a-bgp-optimizer-...
- deleted 6y ago[deleted]
- bogomipz 6y agoNo it's not the same at all. A carrier's SS7 configuration does not get propagated out to other carriers.
- jcrawfordor 6y agoQuite possible though is a significant disruption of one of the many services like LNP which are implemented via SS7 and shared by all carriers - there is indeed a complex set of inter-dependencies between carriers that are all somewhat generically referred to as part of the SS7 system, several of which are required to successfully set up a call or deliver a text message.
- bogomipz 6y agoAll the major carriers maintain their own local LNP database. The only updates that would be distributed via a third party(NPAC) would be recently ported land lines.
- numpad0 6y agoWhat about number transfers? Some MNP implementation rely on the original Home Subscriber Server the number was issued in or something, so there could be paths between core networks among major carriers. e: already addressed, sorry
- gwright 6y agoThis comment tickled something in my memory: All Circuits are Busy Now: The 1990 AT&T Long Distance Network Collapse http://users.csc.calpoly.edu/~jdalbey/SWE/Papers/att_collapse http://users.csc.calpoly.edu/~jdalbey/SWE/Papers/att_collaps...