Counts STS pointer adjustments created or absorbed on this SONET port, which occur when the frame rates of the incoming and outgoing SONET signals differ slightly. A steady baseline of pointer adjustments is normal SONET clocking behavior, but an admin watching for a sudden increase can catch a clock-synchronization problem between this node and its neighbor before it causes payload errors. If eqSonetStatsLineStsPtrAdjustments spikes after a timing source change, an admin would check whether the port's clock reference was reconfigured correctly.