This value sets whether the protection group automatically switches traffic back to the working LSP once it is repaired, revertive(1), or stays on whichever LSP is currently active, non-revertive(2). An admin chooses non-revertive mode when they want to avoid a second traffic disruption from switching back automatically, preferring to revert manually during a maintenance window. For example, setting hpnicfMplsPsRevertiveMode to 1 means the group will automatically switch back to the working LSP after it recovers and the Wait-to-Restore timer expires.