This object is a write-triggered action that forces a manual failover or failback for a virtual router: setting it to failback(1) hands control back to this router, failover(2) hands control away to another router, and failoverWithMonitoring(3) also makes the router watch for a returning master. Administrators use it to manually intervene in VRRP state outside the protocol's normal election process, such as during planned maintenance. Reading this object always returns invalid(4) since it represents a triggered action rather than persistent state.