On Sat, 16 Jun 2001, David R Huberman wrote:
You are not really justified to assign more address space to them until they have assigned 80% of their /20. (There are real-world examples where orgs need to request additional address space at the same time as achieving 80%, but let's not let reality get in the way of textbook examples!)
The size of the additional block you assign them should closely fit the 25%-50% requirement. (Again, real world examples tend to trend to fitting the 50% requirement more than the 25% requirement, but so be it.)
David: I think my prior response answers most of this, but it should be clear that the 25%-50% "suggestion" can't be compatible with the 80% requirement. These must be refering to two totally different things, particlulary because the 50% referes to a year, and RFC2050 suggests 3 month worth of IP address for subsequent allocations. Chuck