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North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical RE: standards for giving out blocks of IP addresses
Richard: I'm glad you jumped in here to clarify things from ARIN's perspective. Regardless of what the actual policy is, I think it's important for everyone to have a reasonable expectation that it's understandable and consistant. This is particularly true when end-users are involved. If you don't mind, I'd like you to further clarify a couple points below. Chuck Scott On Mon, 18 Jun 2001, Richard Jimmerson wrote: > It is true that end-user organizations who request additional IP > address space directly form ARIN must demonstrate 80 percent of > their prior assignment has been efficiently utilized before their > new request may be considered. It is also true this is not stated > at the above referenced URL. It is stated at a different URL where > ISP guidelines for issuing additional IP address space to customers > is described (more about this below). A discussion about adding this > language to http://www.arin.net/regserv/ip-assignment.html will take > place on ARIN's public policy mailing list ([email protected]). While my focus in this discussion wasn't on allocation by ARIN directly to end users, I'm glad to hear this discussion will be taking place. > When it comes to ISPs who assign IP address space to their end-user > customers, it is expected the assignment size will be determined based > on the customer's 25 percent immediate and 50 percent one-year needs, > as described in RFC 2050. It is also stated at > http://www.arin.net/regserv/addipspace.html that ISPs need to adhere > to the following when considering requests for additional IP address > from their customers: > > "Reassignment information for prior allocations must show that each > customer meets the 80% utilization criteria and must be available via > SWIP/RWHOIS prior to your issuing them additional space." The very next bullet point after the above quote is "Customers must follow ARIN guidelines for ISPs." I can see how those two bullet points are appropriate when those customers in turn assign address space to their customers, however, it seems funny to say that true end-users should be following guidelines for ISP's. This brings up a question I have hesitated to bring into the mix. What is meant by "80% utilzation"? It would seem to me that to apply this fairly and evenly to ISP's and end-users alike, that it needs to be a consistant definition. From that, I'd expect the definition to be 80% of the end-user's address space is internally assigned to specific tasks (sub-nets, ...) rather than simply defining it as 80% of the address space is in use by hosts (broadcast addresses, ...). In other words, if an end user internally assigns a block of addresses to an application where they expect that application to immediatly consume 25% of that block and 50% in a year, then that whole block should be considered consumed when figuring the 80% utilization target. Perhaps this is the common interpretation, but I suspect some ISP's don't figure it that way. In any case, if that's how ARIN intends the consumption of end-user space to be figured, then I agree that the 80% target for additional assignments to end-users is a rational figure. It would, however, be nice if that is stated in official policy so assignments are handled in a consistant manner. Chuck
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