[nsp] MPLS & IPv6

[Me]

Ahh, i see your point, i had misunderstood the first email.  Thanks.

On 3 
Feb 2003, Lars Erik Gullerud wrote:

> Date: 03 Feb 2003 17:41:54 +0100
> From: Lars Erik Gullerud <lerik at nolink.net>
> To: Me <smentzer at mentzer.org>
> Cc: cisco-nsp at puck.nether.net
> Subject: Re: [nsp] MPLS & IPv6
> 
> Yes, THIS is working, however it is unfortunately not what you are
> asking about. I merely stated, based on the phrasing of the original
> question, that you can do tag-switching (MPLS) and IPv6 on the same
> interface, without any hickups that we have experienced.
> 
> We are not doing IPv6 over TE tunnels, nor IPv4 for that matter, so I
> have no idea what is currently working or not there. We are only using
> MPLS to provide Ethernet-over-MPLS services, and all the PE devices for
> that are Riverstone gear. The Cisco/Juniper core are all P devices as
> far as MPLS is concerned, and do IPv4/IPv6 natively, with no TE.
> 
> However, doing IPv6 over EoMPLS tunnels does work just fine, as you
> would obviously expect - and is probably the easiest solution right now,
> since there are still a bunch of compatibility issues between the
> various vendors IPv6/ISISv6 implementations. Which is one of the reasons
> we are not actually offering IPv6 to customers yet, we are only running
> very limited trials to a few locations.
> 
> /leg
> 
> On Mon, 2003-02-03 at 16:55, Me wrote:
> > Lars, is this actually working?
> > 
> > We have a similar setup, but no IPv6 traffic will pass when using isis for 
> > ipv6, because IPv6 (according to cisco) cannot traverse TE tunnels, and 
> > is-is cannot route ipv6 over a different path than it routes ipv4.  I have 
> > been told we need to wait for 'multi-topology' is-is for that to work.  I 
> > have been using 12.0(21)ST, maybe 23S has this multi-topology is-is?
> > 
> > 
> > On 3 Feb 2003, Lars Erik Gullerud wrote:
> > 
> > > Date: 03 Feb 2003 10:04:24 +0100
> > > From: Lars Erik Gullerud <lerik at nolink.net>
> > > To: George Boulescu <george at roedu.net>
> > > Cc: cisco-nsp at puck.nether.net
> > > Subject: Re: [nsp] MPLS & IPv6
> > > 
> > > On Mon, 2003-02-03 at 09:08, George Boulescu wrote:
> > > > I was wondering if it is possible to have tag-switching and ipv6 enabled
> > > > on the same interface.
> > > > 
> > > > Anyone tried that ?
> > > 
> > > Yes. We now use it on production GSR's with 12.0(23)S1, and this works
> > > just fine, at least on the linecards we have tested this (typically
> > > those who can do dCEFv6, which is not yet all cards). Example from an
> > > engine 0 single-port GigE on one of our boxes:
> > > 
> > > interface GigabitEthernet4/0
> > >  description <XXX>
> > >  mtu 4470
> > >  ip address x.x.x.x 255.255.255.252
> > >  no ip redirects
> > >  no ip directed-broadcast
> > >  no ip proxy-arp
> > >  ip router isis <XXX>
> > >  negotiation auto
> > >  mpls traffic-eng tunnels
> > >  ipv6 address X:X:X:X:X/64
> > >  ipv6 router isis <XXX>
> > >  ip rsvp bandwidth 600000 600000
> > > 
> > > We are doing RSVP-signalled tunnels through these core boxes, for
> > > traffic between EoMPLS PE-routers (not Cisco), and native IPv4 and IPv6.
> > > Haven't had a single problem yet, apart from the usual with Cisco and
> > > IPv6. Not tried this on other platforms beside GSR yet, as Cisco for
> > > some reason haven't gotten dCEFv6 for 7500 into 12.0S (although they
> > > have it on 12.2T) or (a working) CEFv6 for 7200.
> > > 
> > > /leg
> > > 
> > > 
> > > _______________________________________________
> > > cisco-nsp mailing list  cisco-nsp at puck.nether.net
> > > http://puck.nether.net/mailman/listinfo/cisco-nsp
> > > archive at http://puck.nether.net/pipermail/cisco-nsp/
> > > 
> 
> 

-- 
-sean
Spoon!