[ipv6-wg at ripe.net] Re: Re: What is a site?
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Roger Jorgensen
rogerj at jorgensen.no
Tue May 10 16:59:49 CEST 2005
As I see it, this is probably the cleanest sumary of the entire discussion so far. And the one that make most sense to. On Tue, 10 May 2005, Daniel Roesen wrote: > On Tue, May 10, 2005 at 01:21:52PM +0100, Carlos Friacas wrote: > > I also didnt get the renumbering issue... renumbering from a /56 to a /48 > > should be painless... > > It isn't. Making smaller default assingments like /56 makes only sense > if you do NOT keep a whole /48 to grow the /56 to. So essetially you'll > face networks with exceed 256 subnets which then need to renumber ALL > of them. There isn't supposed to be _additional_ space, only larger > replacement. > > And a network addressing plan designed to /56 and now approaching > limits _does_ look different to a /48 plan, so people _will_ have > to redesign their addressing plan while renumbering the whole network > from the old /56 to the new /48. This is all the hassle (even more!) > of IPv4... The whole point of /48 is to _avoid_ that as much as > possible. > > But indeed, I don't see SOHO/home networks outgrow a /56 in the > foreseeable future. If technologies come up which do mandate/foster > high amounts of subnetting even in the SOHO/home space, the default > SOHO/home assignment size can be raised again - which will introduce > some pain, but not that much. > > Giving /56s to corporate networks is IMHO just plain wrong and "IPv6 > not understood". > > And don't forget, upgrading your assignment from /56 to /48 WILL have a > price tag attached to it. ISPs _still_ try to squeeze out revenue from > artificial address space scarcity. As Tony pointed out, the business > agenda of "product differentiation" is a/the big driver of this move. > > Providing better service than the competition is just too oldschool > it seems. :-) > > > Best regards, > Daniel > > -- ------------------------------ Roger Jorgensen | rogerj at stud.cs.uit.no | - IPv6 is The Key! http://www.jorgensen.no | roger at jorgensen.no -------------------------------------------------------
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