3.1.7.2 Sending a DHCP Failover UPDREQALL Message
When a backed-up DHCP database is restored by using the R_DhcpRestoreDatabase method ([MS-DHCPM] section 3.2.4.46), the DHCP server implementing this specification MUST transition to the RECOVER state (section 3.1.1) and send an UPDREQALL message to its failover partner server.
The behavior of the UPDREQALL message (as specified in [IETF-DHCPFOP-12] section 7.4.1) is unchanged by the extensions specified in this document.