LBE (Less than Best Effort) Service
Less Than Best Effort (LBE) is a new service available on GEANT/GN2 and some of the NRENs connected to it. It uses DiffServ with the Class Selector 1 (CS=1) DSCP to mark traffic that can get by with less than the default "best effort" from the network. It can be used by high-volume, low-priority applications in order to limit their impact on other traffic.
– Main.SimonLeinen - 06 May 2005