use-release-grace-period
Applies the grace period, which is specified by the grace-period command, to the DHCP local address pool addresses that are explicitly released by clients. When a client releases an address, the address enters the grace period and can be reassigned only to the original client. The no version restores the default, which disables the use of the grace period for explicitly released addresses.
[ no ] use-release-grace-period
DHCP Local Pool Configuration
Command introduced in JUNOSe Release 8.0.0.