[AG-TECH] AG IPv6 support

[Tim Chown]

Hi,

We (Southampton) and UCL worked on IPv6 for Globus Toolkit 2, over a year
ago, and had a significant part of it working.   However we dropped this
effort when GT3 came out, and have since done work to port/validate GT3
for IPv6.  This is now working, and includes JDK1.5 testing.   This is
IP version independent, not a port to IPv6-only.

The vic and rat tools are both IPv6 capable, and have been for a number of 
years (both were developed at UCL under the MICE project, I believe). 

UCL and Southampton have some funding in the 6NET project which could be used
to demonstrate IPv6-enabled AccessGrid.   We both have existing IPv4 AG 
deployments.  We both have IPv6 multicast deployed in a production quality 
environment on 6NET (www.6net.org); both PIM-SM and SSM IPv6 applications.
We have had ~30 partner vic/rat IPv6 PIM-SM sessions.   We have used FLUTE
and DVTS for IPv6 SSM.

It seems to me that the GT2-based AG components are the main problem.  We
may be able to resurrect some of the old GT2 IPv6 work we did.   Other bits
may be more problematic.

What would be useful would be a complete architecture documentation for
an AG node/system.  Could you point us at such a document for analysis?

We should definitely discuss this in more detail once that analysis is done,
as we could be of mutual help :)

Thanks,
Tim

On Thu, Mar 04, 2004 at 10:00:32AM -0600, Ivan R. Judson wrote:
> 
> Hey Natalia,
> 
> We've discussed IPv6 support a few times now internally (and with some folks
> working on it). We are very interested in being able to use IPv6 but there
> are some fundamental issues with it that need to be addressed before we
> could move to it exclusively -- that seems to be the case with everything.
> 
> One of the biggest issues is that the Globus Toolkit 2.X doesn't know about
> IPv6. With the recent shifts in GT3/4, OGSI, and such we've pushed off
> moving to that until at least next year. Given that what we really need is
> someone to step up and offer to implement IPv6 for GT2, there are a couple
> of groups that have worked on it, but it's not clear it's complete yet. If
> someone or group of someone's was interested in trying it we'd be interested
> in helping out and hearing how things go.
> 
> Second, our media tools would need to be able to handle IPv6. This is a
> smaller but real problem, rat is (I believe) IPv6 capable, but vic is not.
> This would be a good student project, but we're currently swamping our
> students with other things.
> 
> A bigger issue is that we have not had demand large enough to undertake this
> as a core project deliverable. If it becomes important enough we'll have to
> pursue funding to create resources to do the work.
> 
> Sorry for the long answer ;)
> 
> --Ivan 
> 
> > -----Original Message-----
> > From: owner-ag-tech at mcs.anl.gov 
> > [mailto:owner-ag-tech at mcs.anl.gov] On Behalf Of natalia at cesga.es
> > Sent: Thursday, March 04, 2004 4:49 AM
> > To: ag-tech at mcs.anl.gov
> > Subject: [AG-TECH] AG IPv6 support
> > 
> > 
> > Hi,
> > 
> > 
> > We are studying right now the migration of our network to 
> > IPv6, therefore we are interested in IPv6 AG capabilities. 
> > Which is the current situation concerning this issue? When is 
> > it planned to have complete IPv6 support?.
> > 
> > 
> > Kind regards,
> > Natalia.
> > 
> > -----------------------------------
> > Natalia Costas Lago
> > mailto: natalia at cesga.es
> > 
> > Centro de Supercomputacion de Galicia (CESGA) Avenida de 
> > Vigo, s/n Campus Sur
> > 15705 Santiago de Compostela - SPAIN
> > Tel:   +34  981 56 98 10
> > Fax:  +34  981 59 46 16
> > http://www.cesga.es/
> > 
> > 
> > 
> > 
> > 
> > 
> > 
> >