[openib-general] IP addressing on InfiniBand networks

[James Lentini]

Are there any tools available for a network administrator to assign a 
GID? Does OpenSM provider this capability?

On Tue, 28 Jun 2005, Caitlin Bestler wrote:

> 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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>