ISC DHCP per class lease limit
Quote from ISC DHCP 1dhcpd.conf.5`
PER-CLASS LIMITS ON DYNAMIC ADDRESS ALLOCATION
You may specify a limit to the number of clients in a class that can be assigned leases. The effect of this will be to make it difficult for a new client in a class to get an address. Once a class with such a limit has reached its limit, the only way a new client in that class can get a lease is for an existing client to relinquish its lease, either by letting it expire, or by sending a DHCPRELEASE packet. Classes with lease limits are specified as follows: class "limited-1" { lease limit 4; } This will produce a class in which a maximum of four members may hold a lease at one time.
Often associated with cloned classes. Requested by a customer but a priori not easy to implement. Note that in Kea lease assignment is done before calling setReservedClientClasses.
Support tickets: support#18293, support#17523, support#19968
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