On Fri, Oct 22, 2010 at 11:21:36AM -0700, Cameron Byrne wrote:
> On Fri, Oct 22, 2010 at 10:54 AM, <bmann...@vacation.karoshi.com> wrote:
> > On Fri, Oct 22, 2010 at 09:42:50AM -0700, Cameron Byrne wrote:
> >> On Thu, Oct 21, 2010 at 10:20 PM, George Bonser <gbon...@seven.com> wrote:
> >> >
> >> >
> >> >> -----Original Message-----
> >> >> From: Christopher Morrow > Sent: Thursday, October 21, 2010 9:49 PM
> >> >> To: bmanning
> >> >> Cc: NANOG
> >> >> Subject: Re: IPv4 sunset date revised : 2009-02-05
> >> >
> >> >
> >> >>
> >> >> (now I'm teasing.. .Bill where's your docs on this fantastic new
> >> >> teknowlogie?)
> >> >>
> >> >
> >> > I found it here:
> >> >
> >> > http://www.ivi2.org/
> >> >
> >> > But the readme is a bit confusing:
> >> >
> >> > http://www.ivi2.org/code/00-ivi0.5-README
> >> >
> >> > Trying to figure out how they map a /70 v6 prefix to a /30 v4 prefix
> >> > assuming the mapping is to be 1-1
> >> >
> >>
> >> Right, 1 to 1 does not solve any IPv4 exhaustion problems.
> >
> >
> > ah... but the trick is to only need enough IPv4 in the pool
> > to dynamically talk to the Internet. Native v6 to Native v6
> > never has to drop back to the Internet, It uses native v6
> > paths. So the larger the v6 uptake, the fewer Internet addreses
> > you'll need to keep around in your pool.
> >
> >
> >> Going back to the title of the thread, IVI does not help you sunset
> >> IPv4 since the same amount of IPv4 is required.
> >
> > See above.
> >
>
> So works, just not at a large scale. For larger scale, you need
> address sharing like NAT64.
depends on your definition of "large" scale.
for cernet2 ---
"The grid over IPv6 covers 20 universities distributed in 13 cities,
and
the aggregation capability is high above 15 trillion time/sec, and the
storage capability above 150TB."
"CNGI-CERNET2 backbone runs IPv6 protocol and connects 25 PoPs
distributed
in 20 cities in China with the speed of 2.5Gbps/10Gbps. Meanwhile, the
transmission
rate of Beijing-Wuhan-Guangzhou and Wuhan-Nanjing-Shanghai is 10Gbps.
Each
PoP provides the 1Gbps/2.5Gbps/10Gbps access capacity for the access
network.
"Since the opening in 2004, CNGI-CERNET2 backbone has connected more
than 200
IPv6 access networks of universities and R&D institutes in China,
supported
technical trials and application demonstration, and provided excellent
environment
for world-wide next generation Internet research."
So, yeah... for these smaller, regional networks, its a good fit. For
you big
guys, you may need something else.
--bill
