[ale] Slides from my IPv6 talk.

[Chris Woodfield]

Interesting read...thanks for posting this.

One phrase that I'll take the opportunity to comment on:

"IPv4 allocations were a paradigm of scarcity
   –Use of dense allocations to optimize utilization
  IPv6 allocations are a paradigm of abundance
   –Use of sparse allocations to optimize versatility
"

I'd add some color here to note that there was a time that the IPv6  
paradigm *was* the paradigm for IPv4 - remember "classful" networking?

My point being, IMO while the v6 address space is impossibly, hugely,  
stupendously large, large enough that no one could ever conceive of a  
time where that address space might ever become scarce, there was a  
time Way Back In The Day where exactly the same things were said about  
IPv4.

Back to the specifics of classful networking, there was a time where  
if you had 1 to 254 hosts, you got a /24 (254 addresses), and if you  
had more than 254 hosts, you got a /16 allocation (~65,000 addresses).  
And if you had more than that, you got a /8 - 1.6 million addresses.  
This is why companies like Xerox, GE, and Interop (yes, the trade show  
company) now have /8 allocations that they'll never come close to  
utilizing, but will never give up - which is part of the reason IPv4  
space is scarce today.

I know this is turning into something of a rant, but the point I'm  
trying to make is that at some point, some attention must be paid to  
efficient allocations even in the 128-bit-wide IPv6 space. If not, we  
risk being in exactly the same situation as we are today with v4 - it  
will take longer, but it will happen.

-C

On Apr 9, 2009, at 10:26 PM, Michael H. Warfield wrote:

> Hello All!
>
> 	As promised (though not as FAST as promised) here are my slides from
> the ALE talk "The Brave New World of IPv6".  They are available in 3
> formats from my sight, .odp, .ppt, and .pdf.  They are available here:
>
> 	http://www.wittsend.com/mhw/2009/IPv6-BNW-ALE-2009.odp
> 	http://www.wittsend.com/mhw/2009/IPv6-BNW-ALE-2009.ppt
> 	http://www.wittsend.com/mhw/2009/IPv6-BNW-ALE-2009.pdf
>
> 	If you are on IPv6 you can pull them from the IPv6 side of the house
> here:
>
> 	http://www.ip6.wittsend.com/mhw/2009/IPv6-BNW-ALE-2009.odp
> 	http://www.ip6.wittsend.com/mhw/2009/IPv6-BNW-ALE-2009.ppt
> 	http://www.ip6.wittsend.com/mhw/2009/IPv6-BNW-ALE-2009.pdf
>
>
> 	Enjoy!
>
> 	Regards,
> 	Mike
> -- 
> Michael H. Warfield (AI4NB) | (770) 985-6132 |  mhw at WittsEnd.com
>   /\/\|=mhw=|\/\/          | (678) 463-0932 |  http://www.wittsend.com/mhw/
>   NIC whois: MHW9          | An optimist believes we live in the  
> best of all
> PGP Key: 0xDF1DD471        | possible worlds.  A pessimist is sure  
> of it!
>
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