e/Route poisoning

Information
has gloss	eng: Route poisoning is a method to prevent routing loops within computer networks. Distance-vector routing protocols in computer networks use route poisoning to indicate to other routers that a route is no longer reachable and should be removed from their routing tables. A variation of route poisoning is split horizon with poison reverse whereby a router sends updates with unreachable hop counts back to the sender for every route received to help prevent routing loops.
lexicalization	eng: route poisoning
instance of	(noun) code of correct conduct; "safety protocols"; "academic protocol" protocol