Black Hole

Slang term for a router that goes down (offline) and whose absence goes undetected by other routers on the network. Packets that are forwarded to that router simply get dropped and never arrive at their destination. Black holes are unable to generate destination unreachable messages, so users are left unaware that data is being lost.

Vangie Beal
Vangie Beal
Vangie Beal is a freelance business and technology writer covering Internet technologies and online business since the late '90s.

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