N reasons for not deploying ipv6 (was: Re: [narten@us.ibm.com:PI addressing in IPv6 advances in ARIN])

[Kristian Larsson]

On Mon, Apr 17, 2006 at 08:09:56PM +0200, Iljitsch van Beijnum wrote:
> On 17-apr-2006, at 19:46, Eric Klein wrote:
> 
> >>That's a fairy tale. There is no country-based discrimination in  
> >>effect.
> 
> >I am not claiming that there is any discrimination going on, just  
> >that when a full class C addresses was allocated for 60k schools  
> >and an unknown number of end-users then there is a real shortage  
> >starting.
> 
> When I hold my breath that doesn't mean there is no oxygen in the  
> air... In many places it's hard to get addresses, but that's not  
> because there aren't any or they're impossible to get. Often, ISPs  
> limit address use by customers to make them buy more expensive  
> services, or to avoid having to do something they don't want to do,  
> such as pay their ISP or pay RIR fees.
> 
> >No, we are not out of addresses yet, and yes CIDR has done wonders  
> >for holding back the tide, but we do really need the additional  
> >addresses of IPv6 - not to mention the other advances that are  
> >included.
> 
> >But there is a perception (mostly in the US) that there is no  
> >problem and it will be too expensive to upgrade/replace existing  
> >hardware.
> 
> I think that's a fairy tale too. What kind of gear that you can buy  
> today can't do IPv6? And how much of that is un-upgradable? Basically  
> only stuff that has hardware support for IPv4 processing built in,  
> such as multilayer switches, some routers and some things like load  
> balancers. If you simply only buy new gear that either supports IPv6  
> or can be upgraded to support it, then it really doesn't have to cost  
> much as you'll do upgrades, reconfigurations and training sessions  
> anyway over the course of some years so adding IPv6 to that doesn't  
> make it much more expensive.
Sure, new equipment can handle v6 but most of the
already installed cannot. 
Basically all ISPs and larger companies are using
ASIC based routers and thus it is quite a lot of
equipment that is not capable of doing v6
forwarding. Not everyone have the luxury of using
all latest generation hardware ;)
 
 Kristian.