Using IPv6 with prefixes shorter than a /64 on a LAN

Sun Jan 30 17:17:04 UTC 2011

On Sun, 2011-01-30 at 17:39 +0100, Leen Besselink wrote:
> On 01/25/2011 11:06 PM, Owen DeLong wrote:
> > If IPv4 is like 640k, then, IPv6 is like having 47,223,664,828,696,452,136,959
> > terabytes of RAM. I'd argue that while 640k was short sighted, I think it is
> > unlikely we will see machines with much more than a terabyte of RAM
> > in the lifetime of IPv6.
> >
> I would be very careful with such predictions. How about 2 TB of RAM ?:
> 
> "...IBM can cram 1 TB of memory into a 4U chassis or 2 TB in an
> eight-socket box in two 4U chassis..."
> 
> http://www.theregister.co.uk/2010/04/01/ibm_xeon_7500_servers/page2.html
> http://www.theregister.co.uk/2010/04/01/ibm_xeon_7500_servers/
> 
> I don't know who will use it or how much they will need to pay for it or
> even when they will be available,
> but they are talking about it (in this case at the last CEBIT in March).
> 
> People are building some very big systems for example with lots and lots
> of virtual machines.

On dell.com you can buy a PowerEdge R910 with 1TB RAM for around $80k.

Laurent