This read-write TimeTicks value, though its source description is empty, is paired with the read-only stActMaxAge and represents the Max Age timer this bridge would advertise while acting as, or aspiring to be, the spanning tree root. An administrator tunes it to control how long BPDU information is considered valid before a topology recalculation is triggered network-wide. For example, the admin shortens stRootMaxAge to speed up spanning tree convergence on a network experiencing frequent link flaps.