Thanks for the replies so far. bgpd can handle full tables. This means that as of today ~251K prefixes demonstrably work but most of these are from peers (iBGP or eBGP) I'm interested in known limitations/expected gotchas on locally originating 50k prefixes.50K lines of
network 92.48.111.0/26 set { nexthop 92.48.95.196 community 64667:0 } in a bgpd.conf Thanks Pete