[nsp] MPLS & IPv6

[Me]

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
> 
> 
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-- 
-sean
Spoon!