[c-nsp] 6PE: was: mpls over native ipv6?

Christian MacNevin cmacnevin at silverspringnet.com
Tue Aug 3 18:51:41 EDT 2010


Hi

I just revisited this,and yeah the only 6PE doc I've seen (here: http://www.cisco.com/en/US/products/sw/iosswrel/ps1835/products_data_sheet09186a008052edd3.html ) seems to be totally out of date.

Note that this is using 12.2(33)SRD4 on a 7200 platform (Dynamips actually).

The basic syntax there relies on the default IPv6 table passing labels like so:

Router bgp 100
Nei 1.2.3.4 remote-as 100
Address-family ipv6
Nei 1.2.3.4 activate
Nei 1.2.3.4 send-label
!

Which for me, when redistributing connected routes, dropped them for some reason.

The following, however, apparently works just fine:

Router bgp 100
Nei 1.2.3.4 remote-as 100
Address-family vpnv6
Nei 1.2.3.4 activate
!

Is there any newer source of documentation anyone knows of that works with the newer bgp/vrf syntax and more recent IOS?

Cheers
Christian







-----Original Message-----
From: Tim Durack [mailto:tdurack at gmail.com] 
Sent: Thursday, July 01, 2010 12:31 PM
To: Christian MacNevin
Cc: Chris Nicholls; cisco-nsp at puck.nether.net
Subject: Re: [c-nsp] 6PE: was: mpls over native ipv6?

On Thu, Jul 1, 2010 at 1:48 PM, Christian MacNevin
<cmacnevin at silverspringnet.com> wrote:
> Oh really? So there's still no native ipv6 MPLS?
>
> OK, well thanks to finding out about the new CLI and this doc, which seems to be making out that everything should work just fine: http://www.cisco.com/en/US/docs/ios/mpls/configuration/guide/mp_vpn_ipv4_ipv6.html
>
> I now at least have routes propagating across the core via BGP, and they have valid-looking BGP labels. But I can't ping between the damn things. This my missing LDP? And why does that doc look like it should all work just fine?
>

I ran into this about a year ago. Cisco docs say things like:

"Restrictions for Implementing IPv6 VPN over MPLS
6VPE supports an MPLS IPv4-signaled core. An MPLS IPv6-signaled core
is not supported."

I found VPNv6 has to be enabled on IPv4 peers, not IPv6. There is no
IPv6 signalled label path, due to their being no implemented LDPv6.

-- 
Tim:>



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