[c-nsp] Is Inter-AS option B supported on Catalyst 6500 SXI code?

[schilling]

Thanks all for the advice. I figured out with TAC.  The label is
filtered by my label advertisement filter.

Schilling

On Wed, Mar 28, 2012 at 12:49 PM, Saku Ytti <saku at ytti.fi> wrote:
> On (2012-03-27 14:00 -0400), schilling wrote:
>
>> I am trying to have catalyst 6500 w/ sup720 3BXL with 12.2(33)SXI5 to
>> support ASBR exchanging VPN-IPv4, but 6500 is not allocating labels
>> for prefixes learned from eBGP over address family vpnv4.
>>
>> Does anybody ever have this working? Any catch?
>
> Should work. Are you sure you were actually sending labels? 'send-label' in
> route-map? Also did you enable MPLS forwarding in interface via 'mpls bgp
> forwarding'
>
> In my opinion OptionB is useless, you need OptionA if full trust lacks, and
> otherwise OptC will be more convenient or just native MPLS.
> RFC4364 page 32 last sentence mandates that OptB should do RPF like label
> checking. This would guarantee that you only put shared customers at risk,
> but as this checking is non-existing in every vendor (IOS XR supposedly is
> getting it), it removes the usage case.
>
> --
>  ++ytti
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