[Beowulf] IPv6 and clusters?

Peter Kjellström cap at nsc.liu.se
Thu Jun 9 09:53:33 PDT 2011

On Thursday, June 09, 2011 03:32:35 PM Stuart Barkley wrote:
> Yesterday was IPv6 day.
> Does IPv6 have any major place in clusters?  Has anyone ever tried an
> IPv6 only cluster?

Lots and lots of cluster-related software currently requires IPv4 so I suspect 
that this would be a challenge.

One thing IPv4 makes hard (for most people) today that IPv6 will fix is to 
"afford" assigning global addresses to all nodes in a cluster (even though 
most people can live without that...).

> My thought is that IPv4 is fine for internal cluster networks using
> rfc1918 networks.  I expect the multihomed login/management nodes will
> eventually need IPv6 on the outside interfaces.
> Other thoughts?
> Stuart Barkley
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