PI vs PA Address Space
Karl Denninger, MCSNet karl at mcs.com
Thu May 18 22:22:21 CEST 1995
> > Eventually routers stopped being able to handle full routing > > in 16Mb of memory, and suddenly the very real cost of > > carrying routing information around became clear to a number > > of providers: how much did replacing a bunch of mostly-AGS+ > > routers with 64Mb Cisco 7000-series routers cost? > > This memory jump has occured more than once. I remember 4 and 8 meg > routers. 16 meg boxen were deamed large enough when they were created. > The leap to 64 is just another step in the process. > > > nothing longer than /18 or /19 (it's /18 now, but it's > > not entirely inflexible, and dialogues continue) will > > have global scope. > > As an aside, is anyone else besides Sprint behind this /18 > model? I know that Sean is a big proponent but I have heard > no other public comment on this. (well there was one, which > indicated that the community had reached consenses on this point, > which is why I ask.) > > > --bill My commentary? These people are NUTS. I do not, and will not, get behind this /18 model for EXISTING addresses. If someone wishes to put this forward for FUTURE assignments, and give us a cut-over date which we can announce to customers (prospective and current) then I might support THAT. This proposal, implemented retroactively, serves to promote monopoly and tying arrangements to a particular provider, is not in the public interest, violates the assumptions and *statements* made by many over the last several years, and if undertaken as a collusive effort may spawn anti-trust and restraint of trade litigation. For these reason I believe it is *highly* ill advised to attempt to retroactively change the disposition of all the Class "C"s that have previously been delegated both from providers and directly from the Internic itself. BTW, in case it matters, one of our customers has ALREADY been bit by this when they attempted to leave MCSNet and attach to Sprint with addresses delegated from a netblock which Sprint assigned to us. They were first given incorrect information by Sprint's NOC personnell and then forced to renumber not only their internal hosts, but their CUSTOMERS machines. Litigation was imminent in this case and very narrowly avoided. Do we wish to open pandora's box on this one? I say no way. Put a cut over date and proposal forward for the FUTURE. Do *NOT* attempt to change, retroactively, the routability of addresses delegated over the last "N" years or you are begging for more trouble than you can imagine. -- -- Karl Denninger (karl at MCS.Net)| MCSNet - The Finest Internet Connectivity Modem: [+1 312 248-0900] | (shell, PPP, SLIP, leased) in Chicagoland Voice: [+1 312 248-8649] | 7 POPs online through Chicago, all 28.8 Fax: [+1 312 248-9865] | Email to "info at mcs.net" for more information ISDN: Surf at Smokin' Speed | WWW: http://www.mcs.net, gopher: gopher.mcs.net
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