Re: IOS : send-label for ipv6 ??

I would add it looks like your trying to do 6PE but natively over IPv6 - not designed for that

address-family ipv6 labeled-unicast (XR)
neighbor x.x.x.x send-label (IOS)

These commands are required to run 6PE over an IPv4 core running MPLS (LDP/RSVP/BGP label distribution designs possible though I've not labbed BGP in place of the others)

You'd run these commands under the ipv4 unicast peer's config I.e you activate AFI 2 = IPv6 & SAFI 4 = NLRI with MPLS Labels RFC 3107 (so it's the same TCP session, you just activate the applicable AFI/SAFI)

So for the prefix being originated by the BGP PE the label stack will still be 4-bytes BGP label (inner) & 4-bytes LDP label (outer) for recursion towards the ipv4 BGP PE's next-hop loopback

--
BR
Tony
> On 6 Jun 2014, at 08:45, GAURAV MADAN <gauravmadan1177_at_gmail.com> wrote:
> 
> HI Team
> 
> I get the following message when i try to do a send-label for ipv6 :
> 
> R2(config-router-af)#end
> *Jun  6 06:23:49.547: %BGP-4-BGP_LABELS_NOT_SUPPORTED: BGP neighbor
> 2002:1:1:1::1 does not support sending labels
> 
> Lets say I have following scenario :
> 
> 
> R1 -------- R2 and I want BGP + label [ Let me assume that ipv4 is not
> running ] .
> 
> Ques 1 : If I have IPV4 running successfully (send label working in ipv4)
> and i just bring my ipv6 neighbor UP ; everything works fine . so can i
> safely assume that since my labels were already working for ipv4 ; hence
> just bringing ipv6 neighbor is enough
> 
> Ques 2 : same is seen in xr as well i do not have "address-family ipv6
> labeled-unicast"
> Can someone please clarify if we need to run ipv4 bgp first for BGP+label
> and then enable ipv6 ??
> 
> Regards
> Gaurav Madan
> 
> 
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