Massive growth in backbone network traffic and increasing traffic patterns are causing significant economic challenges for service providers. The bigger the link capacity the more severe is the impact on data during the failure.
With modern 10GE, 40GE or 100GE links it is crucial that the failure detection and failure mitigation is as fast as possible to minimize the impact of a failure i.e. the time during which the data are routed to a broken link only to be discarded. Especially imported when the traffic you carry is very sensitive to traffic loss like Voice and Live or Streaming video (IPTV).