Hi Jeff,

> On Nov 19, 2020, at 3:46 AM, Jeffrey (Zhaohui) Zhang 
> <zzhang=40juniper....@dmarc.ietf.org> wrote:
> 
> Hi,
> 
> It seems that the draft is about using data-plane mac learning in an 
> EVPN-like solution.


Actually the draft explicitly mention that we don’t need any EVPN routes, and 
not sure what EVPN-like solution you are referring too.

> That retains other properties of EVPN, but removes the need for advertising 
> MAC addresses, with the consequences/problems that Ali was trying to point 
> out.
> 

It will be good that you point out those specific consequences/problems.

> Leaving the pros and cons of data plane mac learning out, I want to point out 
> that the idea is actually orthogonal with SR - even if SR were not invented 
> this concept still applies.

Agreed, but SR enabled the concept, via the ability to define SRGB for services 
across the network.

> With VXLAN the source address corresponds to the "source node SID", and with 
> MPLS the "PE Distinguisher Label" in MVPN (and extended to other use cases) 
> serves the same purpose. That same "PE Distinguisher Label" concept is also 
> used in my Generic Fragmentation proposal.
> 
> With that, the discussion for this draft should be in BESS, not in SPRING.
> 

As I mentioned this is still about BGP enabled services, however we can still 
present this in SPRING.

Thanks,

Sami

> Jeffrey
> 
> Juniper Business Use Only
> 
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