[openib-general] IP addressing on InfiniBand networks

[Caitlin Bestler]

Site-local GIDs are just as manageable as site-local IPv6 addresses.
In fact they look just like them to /etc/hosts, NIS, DNS, etc.

The only real work required of the local network administrator(s)
is that they assign *different* site-local network IDs for IPv6 and IB.
There are 64K total available, so I doubt anyone is going to run out
of available network IDs.


On 6/28/05, James Lentini <jlentini at netapp.com> wrote:
> 
> That would require systems to be configured using IB addresses. Can
> that be made feasible in non-trivial configurations?
> 
> For example, how could name resolution be made scalable? If you want
> to resolve a hostname like foo.bar.com to an IB GID, then information
> about IB GIDs needs to added to the various name resolution systems
> (/etc/hosts, NIS, DNS,...). Adding GIDs to these databases doesn't
> seem like a prudent thing to do. GIDs come in different flavors
> (adapter specific and subnet manager assigned) none of which appear to
> be good candidates for large scale management.
> 
> On Tue, 28 Jun 2005, Christoph Hellwig wrote:
> 
> hch> On Tue, Jun 28, 2005 at 03:24:35PM -0400, James Lentini wrote:
> hch> >
> hch> > I'd like to summarize the discussion we've been having around
> hch> > addressing and start a new email thread with a more appropriate title.
> hch> >
> hch> > First off, here is there requirement we are trying to satisfy:
> hch> >
> hch> >   kDAPL consumers use an Internet Protocol (IP) addresses to
> hch> >   identify remote nodes in an interoperable way.
> hch>
> hch> I don't think that does belong into the kernel.  It's fine to do that in
> hch> userspace if you want.
> hch>
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