DHCP active leasequery for live updates of binding information

You can configure active leasequery so that DHCP servers can provide an update to DHCP relay agents whenever the DHCP binding information changes. Individual and bulk leasequery provide updates only in a response to a query;subsequent changes are not reported to the relay agent until another query is made. Active leasequery also enables redundancy between relay agents to restore subscriber information if one of the peer relay agents reboots.