[c-nsp] SD-WAN design for large scale

[Brian Turnbow]

Hi,

> > Omar: Yes, by default you will have a full mesh of tunnels. It's easy
> > to build Hub and Spoke topology if you want to. Often large
> > organizations build regional Hub and Spoke where you traverse a Hub to
> > go to another geographical region, such as EU to US etc.
> >
> Is that the case really?
> When we were reviewing sd-wan solutions from a number of vendors last
> year -my recollection is that hub and spoke or dual hub and spoke (but not
> multi-hub and spoke) was their go to topology and most of them didn't even
> considered full-mesh of tunnels between spoke sites until I asked.
> 

Yes, me too.
I think it could be interesting to see if anyone tries using a quic (or quic like) solution to replace ipsec.
It would be similar to what 128 technologies is pushing.
Moving to a session based approach instead of a tunnel based approach.

Brian