[CAUSE] A tmnxBsxIsaAaGrpToSbWaSBufOvldClr is generated to indicate a prior tmnxBsxIsaAaGrpToSbWaSBufOvld notification has cleared due to one of the following reasons: 1. The weighted average shared buffer use for an ISA in the to-subscriber direction is less than or equal to a low watermark. 2. The corresponding tmnxBsxIsaAaGrpToSbWaSBufOvld notification has been disabled by raising the tmnxBsxIsaAaGrpToSubWaSBfHiWmk to maximum. [EFFECT] The buffer pool in the to-subscriber direction exits overload. ISA MDA overload cut-through ends if it was in effect and the buffer pools in both directions are no longer overloaded.