> > LL use can and should be reserved for bootstrapping and diagnostics. > > LL is used in applications already. e.g LL addresses are commonly used > to address BGP endpoints on exchanges. I don't think of BGP as operating at level 7. I don't have a problem with LL being used for a few special-purpose things that can deal with it, so long as we don't expect LL to work for all or even most apps.