Andrei Agapi Ken Birman Robert M. Broberg Chase Cotton Thilo Kielmann Martin Millnert Rick Payne Robert Surton Robbert van Renesse Routers for the Cloud: Can the Internet Achieve 5-Nines Availability? 72-77 2011 15 IEEE Internet Computing 5 http://doi.ieeecomputersociety.org/10.1109/MIC.2011.122 db/journals/internet/internet15.html#AgapiBBCKMPSR11