[ale] Slides from my IPv6 talk.

[Jeff Lightner]

Yep - I can imagine the day individuals will be running virtual servers
with 200 clients on their cell phones...

My experience has been that every increase in resource (memory, storage,
bandwidth etc...) has always been met by applications that use all of
that and wants more.   

PCs will never need more than 640k of memory...

-----Original Message-----
From: ale-bounces at ale.org [mailto:ale-bounces at ale.org] On Behalf Of
Chris Woodfield
Sent: Friday, April 10, 2009 9:20 AM
To: mhw at wittsend.com; Atlanta Linux Enthusiasts - Yes! We run Linux!
Subject: Re: [ale] Slides from my IPv6 talk.

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!
>
> _______________________________________________
> Ale mailing list
> Ale at ale.org
> http://mail.ale.org/mailman/listinfo/ale


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