Did CIDR teach us nothing? was: Re: [address-policy-wg] 2006-01 Discussion Period extended until 19 June 2007 (Provider Independent (PI) IPv6 Assignments for End User Organisations)
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Sascha Lenz
slz at baycix.de
Wed May 23 11:30:40 CEST 2007
Hi, Iljitsch van Beijnum wrote: > On 23-mei-2007, at 2:50, Sascha Lenz wrote: > >> Why do we concentrate on "multihoming" now as a requirement for >> PI-addresses? That's not what "Provider Independent" means to me, even >> if this is the most likely reason for such a request. > >> What about those who just want a portable block, no renumbering? > > Why am I even bothering!? > > The IETF spent 5 years getting scalable multihoming off the ground. Then > the operator community / RIR policy makers decided shim6 wasn't good > enough before it was even finished and we need PI in IPv6 for > multihoming just like in IPv4. That was a bad decision at the wrong time > and we'll live to regret it, but it won't kill the IPv6 internet in the > immediate future. > > But now we should go back to the good old days before the invention of > CIDR where everyone gets a portable address block, no questions asked? > Unlike IPv6 PI for multihoming this will be enough to kill IPv6 really > fast if it comes into wide use, just like it almost killed IPv4 in the > early 1990s. > Come one, others here also *WERE* there back in the classful times, and screamed "we need a change!!" when their Cisco 3640s hit the end of their usefulnes - heck, even i supported the shim6 (or similiar) development. It's not only you that recognized that problem and started to fear the possible outcome, but you haven't realized that times are changing yet. I don't see any routing table problem for the forseeable future, you have plenty of time to come up with a new, scalable solution and start to deploy it. I still *DO* support *ANYTHING* that keeps the global internet routing tables small and shiny, i really do, but not to that extent that i render the Internet/IPv6 completely useless and "racist" by not allowing IPv6 provider independence. This is real-life internet free market economy nowerdays, deal with it. - I will explain to customers that renumbering is not a big deal if it really isn't in their cases - I will explain to customers that there are other possibilities for multihoming right now and see if that works for them first - I will use any possible other new solution to the problem ("shim6") if it fits the customers needs in the future - I will urge any customer to become a RIR member and explain all advantages of that to them - I will not solicit the usage of PI vs. PA or anything - I will not pass any PI requests or similar from customers if i'm not convinced that they really need it and know what they do but i will NOT deny anyone a routing-table slot just because of their size or monetary issues. So, please, continue with your quest for a better solution, i will appreciate it and bring it to use whereever applicable. P.S.: Anyone got any recent numbers about the percentage of PI announcements in the table vs. PA announcements + deaggregates? -- ======================================================================== = Sascha Lenz SLZ-RIPE slz at baycix.de = = Network Operations = = BayCIX GmbH, Landshut * PGP public Key on demand * = ========================================================================
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