A method for operating a drivetrain and a drivetrain (10) with a controller (36), carrying out said method are disclosed. According to one aspect of the invention, at least in one operating state, from a driving operating state, or an overrun operating state for the drivetrain, on switching between a first speed with a first gearbox input shaft (20; 22) and a second speed with a second gearbox input shaft (22; 20), a clutch device (26; 28) on the first gearbox input shaft and a clutch device (28; 26) on the second gearbox input shaft are operated and a torque generation device (12, 50), comprising a drive unit (12) is controlled, such that, at least one of the following criteria is met with relation to a switching process comprising said switching: 1) during the switching process an at least approximately constant or monotonically changing torque is exerted on the gearbox output shaft, 2) during the switching process an essentially monotonically increasing or monotonically decreasing vehicle acceleration is achieved.