nanog mailing list archives
Re: IPv6 Default Allocation - What size allocation are you giving out
From: David Conrad <drc () virtualized org>
Date: Wed, 8 Oct 2014 19:21:00 -0700
Erik, On Oct 8, 2014, at 6:18 PM, Erik Sundberg <ESundberg () nitelusa com> wrote:
I guess the idea of handing a customer /56 (256 /64s) or a /48 (65,536 /64s) just makes me cringe at the waste.
Don’t cringe. Yeah, a /48 is a crazy amount of space, but that isn’t the resource we are likely to ever need to conserve in the lifetime of IPv6 (well, modulo insane allocation policies the RIR communities could potentially create, but hopefully rational folks will stop that. Hopefully). If you’re concerned, do the math: e.g., assume a couple of orders of magnitude more allocations per year than the current IPv4 burn rate, assume an IPv6 /48 = an IPv4 /32 and then see how many decades the existing /3 of global unicast IPv6 will last. The real issue is how we’re going to scale routing. Allocating /48s to all your customers out of your /32 (or /28 or whatever the default ISP allocation is this week) won’t affect that in any significant way. And besides, allocating all your customers a standard size should make your provisioning systems a lot easier, allowing you to conserve what’s really important... Regards, -drc
Current thread:
- Re: IPv6 Default Allocation - What size allocation are you giving out, (continued)
- Re: IPv6 Default Allocation - What size allocation are you giving out Roland Dobbins (Oct 10)
- Re: IPv6 Default Allocation - What size allocation are you giving out William Herrin (Oct 09)
- Re: IPv6 Default Allocation - What size allocation are you giving out Owen DeLong (Oct 09)
- Re: IPv6 Default Allocation - What size allocation are you giving out Baldur Norddahl (Oct 09)
- Re: IPv6 Default Allocation - What size allocation are you giving out Roland Dobbins (Oct 09)
- Re: IPv6 Default Allocation - What size allocation are you giving out Tore Anderson (Oct 09)
- Re: IPv6 Default Allocation - What size allocation are you giving out Lee (Oct 11)
- Re: IPv6 Default Allocation - What size allocation are you giving out Owen DeLong (Oct 09)
- Re: IPv6 Default Allocation - What size allocation are you giving out William Herrin (Oct 09)
- Re: IPv6 Default Allocation - What size allocation are you giving out Faisal Imtiaz (Oct 09)
- Re: IPv6 Default Allocation - What size allocation are you giving out Paul S. (Oct 09)
- Re: IPv6 Default Allocation - What size allocation are you giving out Owen DeLong (Oct 09)
- Re: IPv6 Default Allocation - What size allocation are you giving out Faisal Imtiaz (Oct 09)
- Re: IPv6 Default Allocation - What size allocation are you giving out Mark Andrews (Oct 08)
- Re: IPv6 Default Allocation - What size allocation are you giving out Sam Silvester (Oct 08)