tmnxBsxIsaAaGrpActivityChange 1.3.6.1.4.1.6527.3.1.2.63.1.2.1.22

The value of tmnxBsxIsaAaGrpActivityChange indicates the last time the value of tmnxBsxGrpMdaActivityState changed to or from 'active (1)' state for an ISA-AA MDA within the group.