The value of vRtrMplsLspSwitchStbyPath specifies whether to trigger the switch from the current active standby LSP path to a new LSP path as specified by vRtrMplsLspSwitchStbyPathIndex. When SET to the value of 'doAction', if the LSP path is actively on a current standby path, signaling will be initiated to switch to the new path. If a signal is triggered while a resignaling is already in progress, the old transient state will be destroyed and a new transaction will be triggered. This variable must be set along with vRtrMplsLspSwitchStbyPathIndex to indicate the specific path index to switch to. An SNMP GET request on this object should return 'notApplicable'.