> On Jul 10, 2015, at 00:59 , Joe Maimon <jmai...@ttec.com> wrote: > > There has been tomes on this topic. There will continue to be many more. > > That is because many of you continue in trying to defend the following > concept. > > customer subnet bits == isp customers bits > > So now, the ISP is supposed to put some effort and gain more bits. Why not > the customer? > > Its inherently suspicious. Because its inherently wrong - for the ISP, and > possibly for the address space as well. > > Indulge me as I wax poetic. > > I venture to say that proponents want to see everyone else have the service > of their own dreams. When broadband rolled to the masses with a single ipv4 > address per subscriber, forget about routing, their hearts broke. The new > common denominator was a far cry from what their experience was. The division > of internet into different classes of netizens a bitter pill to swallow. You > are only one budget cut away from joining the ho-poloi. Its quite scary. > > Hence the determination that no user should ever have to go without enough > addresses ever again. A new common denominator, now is the time to get it > accepted! > > It will be like the old days, a class C with every leased line! Forever!
I will concur with most of this. > > And the ISPs? > > They have enough to get started and they can get more if they put the effort > in. Actually, as has been pointed out earlier by me and Valdis at least, they can get enough to last a good long time up front if they just do a little bit of napkin math before submitting their request. Here’s how it works: JimBob’s ISP and Bait shop serves their customers from 25 distinct wiring centers. They expect to deploy another 50 wiring centers over the next 5 years. Their largest wiring center supports 5,000,000 customers. Representing 5,000,000 requires 23 bits. Rounded up to a multiple of 4 becomes 24 bits. At 24 bits, 5,000,000 is < 75% of the available /48s. So 24 bits is a good number. Representing 75 wiring centers requires another 6 bits. Rounded up to a multiple of 4 becomes 8 bits. At 8 bits, 75 is < 75% of the 256 available numbers, so 8 is a good number. 24 + 8 is 32. 48 - 32 is 16. JimBob’s ISP can apply to ARIN for a /16. Other RIRs are a little different, but still usually not terribly hard to get a large allocation if it can be even remotely justified. > So all the rational and logical debate is pointless. Gut feelings, philosophy > and emotions are what is at stake and those tend not to respond well to > things like logic and reason. Perhaps. Unfortunately, I think it is more the long-prefix crowd that is going on gut feelings. Unless you can show me how there’s harm to the ISPs from /48s per end site, or any other logic to support the need to retain the concept of second-class netizens, then I think logic is on the side of a more egalitarian internet. Owen
