IPv6

Ivan R. Judson judson at mcs.anl.gov
Wed Apr 14 13:46:46 CDT 2004


I'm happy to give up the config we have in our offices, since it's only half
deployed (the rest of the fl needs working multicast on IPv4 really badly,
as does the entire division if that's not already in place).

--Ivan 

> -----Original Message-----
> From: Caren Litvanyi [mailto:litvanyi at mcs.anl.gov] 
> Sent: Wednesday, April 14, 2004 11:24 AM
> To: Robert Olson
> Cc: Ivan R. Judson; 'Remy Evard'; ag-dev at mcs.anl.gov
> Subject: Re: IPv6
> 
> On Wed, 14 Apr 2004, Robert Olson wrote:
> 
> > At 05:07 PM 4/13/2004, Caren Litvanyi wrote:
> > >The 2621 will do v6.  I'd need to compare its performance 
> > >capabilities with your needed average packet-per-second 
> rate, though.  
> > >I bet it is not able to handle much, but I am not sure.
> > >The question is, who do you want to talk to?  If you 
> literally only 
> > >want *within* a lab, no router is needed.  We create a 
> vlan for you, 
> > >and you play in that isolated vlan sandbox.  The switches 
> won't care.
> > >When you want to test v6 AG (or any other app), with another site, 
> > >well, then we have some planning and work to do.  Getting 
> from here 
> > >to there is what requires infrastructure upgrades, or, for 
> the short- 
> > >term, engineering around the problem in one of several ways.
> > >Also, don't forget infrastructure issues like supporting v6 in DNS.
> > 
> > 
> > The first step would be to be able to talk v6 between a set 
> of hosts 
> > locally, and unicast v6 to hosts externally.
> > 
> The 'and' between these is what causes me heartburn.
> The first half of the sentence is relatively easy, but as I 
> mentioned, your current office-net configs mean some changes 
> will be required, one way or another, to get this working if 
> your offices are included.
> 
> The second half, I need to engineer around that our net 
> cannot do this in the short-medium term.  We're talking at 
> least mid 5 figures to get our net minimally routing IPv6; I 
> need to check on card compatibility issues.  I'm not sure if 
> it will work without replacing line cards.  This could take 
> up to multiple 6 figures for the full forklift.
> 
> Since I don't see that sort of money coming my way anytime 
> soon, we can work on finding some other way for now.
> 
> How to proceed?  Would you guys be able to tell me what 
> machines where will need v6 in the short-medium term?  I will 
> try to engineer it so adds/moves/changes will be fairly 
> painless, but I need a starting point.  Drop by my office 
> anytime if you want to chat about this stuff, too.
> 
> > I wonder how painful it is to use v6 without DNS..
> > 
> Yeah, my guess is you could survive without for a while.
> I simply don't have the time to work on the DNS aspect, nor 
> am I the best/most knowledgeable in that area...
> 
> Thanks,
> Caren
> 
> Caren Litvanyi
> network engineer ANL-MCS/MREN/StarLight
> litvanyi at mcs.anl.gov
> o: 630-252-6094  c: 720-839-7739
> 
> 
> 




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