SRv6 in FreeBSD

[Rodney W. Grimes]

> Hi Alex,
> 
> While I'm not a BSD developer, i really doubt it, considering that the 
> building blocks for SR are not there ( mpls support or just label 
> push/pop/swap).

He specifically stated SRv6 which is not MPLS based.
The building blocsk if one was to need this in a BSD are in
OpenBSD which has an MPLS implementation.

> 
> On the other hand, on SRv6 as you mentioned you rely on IPv6 headers and 
> there is a lot of conservatory about it.... ( unless you are a Cisco fan!)

:-)  The SRH is 5 years and 26 revisions into the process and has
been  "Submitted to IESG for Publication" per:
https://datatracker.ietf.org/doc/draft-ietf-6man-segment-routing-header/
so it should be possible for someone to do an implementation in FreeBSD

> 
> I'm interesting on the use case, if you don't mind... is it just service 
> chaining you application ? Usually servers are just part of an overlay ( 
> call it VXLAN,? MPLS? or something over something else...)

I would be interested to here the use cases as well.

> 
> Best regards.
> 
> Santiago
> 
> 
> On 2019-11-25 03:43, madhava gaikwad via freebsd-net wrote:
> > Hello Experts,
> > I want to know if there is any effort/planning going on to implement Segment Routing (RFC 8402?https://tools.ietf.org/html/rfc8402). I see Linux supporting it. Wondering if there is something planned on FreeBSD too.My app runs on FreeBSD and I have a use case to share information from one application gateway to another about connection identity. I thought SRv6 header can help me here.
> > Thank you.Alex.
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-- 
Rod Grimes                                                 rgrimes at freebsd.org