Re: SRv6 Capable NOS and Devices

[Jeff Tantsura <jefftant.ietf () gmail com>]

Plane IP underlay works real well, I’m yet to see tangible proof of TE in DC (outside of niche HPC/IB cases).
SR in DC - with overlay starting on the host SR-MPLSoUDP(RFC8663) is a perfect representation of a working technology 
that works in IP environment as well as allows end2end programming for MPLS WAN/DCI.
Here’s an example of end2end architecture that works really well - 
https://datatracker.ietf.org/doc/draft-bookham-rtgwg-nfix-arch/

Geneve (there are some quirks as you get into implementing it) is another example of a well designed overlay encap.


Cheers,
Jeff

> On Jan 15, 2022, at 23:54, Saku Ytti <saku () ytti fi> wrote:
>
> On Sat, 15 Jan 2022 at 19:22, Colton Conor <colton.conor () gmail com> wrote:
>
> > True, but in general MPLS is more costly. It's available on limited
> > devices, from limited vendors. Infact, many of these vendors, like
> > Extreme, charge you if you want to enable MPLS features on a box
>
> Marketing, not fundamentals. DC people are driving demand for VXLAN
> and SRv6, because they assume MPLS is something scary and complex. So
> vendors implement something scary and complex to appease DC people.
> I'm sure in some years to the future, DC people will re-invent MPLS to
> simplify their stack.
>
> -- 
>  ++ytti