André, firstly, thanks for the write-up.
[email protected] (André Grüneberg) wrote: > The list of BGP daemons who have IPv4 AFI enabled by default spans all > those imitating Cisco IOS CLI. Those either need "no bgp default > ipv4-unicast" or "no neighbor X activate" (in ipv4 address family). I would > not call all of those BGP implementations "old". It's been BCP for a long time to explicitly insert "no neighbor X activate" in Cisco configs. Not sure we need technical provisions to help with misconfigurations, one could just tell the guys? Then IDK whether there are implementations where you can't turn v4 AFI off, in which world a technical provision would make sense. My €0.02, Elmar.
