Matthew Petach писал(а) 2022-10-11 20:33:
My point is that it's not a feature of BGP, it's a purely human
convention,
arrived at through the intersection of pain and laziness.
There's nothing inherently "right" or "wrong" about where the line was
drawn, so for networks to decide that /24 is causing too much pain,
and moving the line to /23 is no more "right" or "wong" than drawing
the line at /24. A network that *counts* on its non-connected sites
being reachable because they're over a mythical /24 limit is no more
right than a customer upset that their /25 announcements aren't being
listened to.
IMO this line wasn't arbitrary, it was (and it still is) a smallest
possible network size allocated by RIRs. So it's just a common sense to
receive everything down to /24 to have the complete data about all
Internet participants.
--
Kind regards,
Andrey
