North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: The Gorgon's Knot. Was: Re: Verio Peering Question
At 07:09 PM 9/28/2001 -0700, Sean M. Doran wrote: >Patrick writes: > >| >Wouldn't it have been easier for small ISP to just aggregate? >| >I mean, /19s got through after all! >| >| No, it would not have helped. Assume the prospective customer has a link >| to UUNET and a /24, but wants a second link for [insert reason]. He now >| goes to SmallISP.com and asks for info on getting a second T1. Then the >| Sprint sales guy calls him and mentions that IF AND ONLY IF he buys a line >| from Sprint, will Sprint hear his /24. > >Let's see. Firstly, this is a valid point, although I wonder how >Sprint's sales person could possibly know she or he should call >the customer in the first place. Unless Sprint is known to employ >psychics, this seems like a bit of a stretch in producing a bete noire. Gimme a break. s/the Sprint sales guy calls him and/he calls a Sprint sales guy who/ Geez..... >Secondly, /24 is not a small ISP, but wants a small ISP to back-up >connectivity to UUNET. Valid goal. However, asking small ISP >to ensure the world hears the hole in UUNET's CIDR block is not >a good solution. Why not? >Instead: > > 1. this is one reason why NAT was invented in the first place, > and (hopefully) NAT is feasible for /24 (which is not an ISP) This would cause depletion of address space faster. > 2. where NAT is impractical or even undesirable, Tony Bates and > Yakov Rekhter have a solution in RFC 2260 tailor-made to this > situation This does not address performance issues. > 3. the maximum 254 things in the /24 can be renumbered > into small ISP's PA space and announced to UUWHO > with a constraining (set of) community(ies) > > (NAT, incidentally, was also invented to make renumbering easier) All this does is swap the problem around, not solve it. > 4. "creative value-added approaches to this problem are sold for $" Why bother, when ISP-X down the street will "just do it"? >If the premise that /24 is not an ISP is false, then it should >renumber anyway into PA space which is readily available and >a generally understood cost of business for transit providers/ISPs. Agreed. -- TTFN, patrick
|