Karl O. Pinc wrote: >> The number of networks that filter prefixes smaller than /22 don't >> appear to be that numerous IMHO, but if they do, your /24 will still >> be reachable as they'll see the larger /19 or whatever from your >> provider that it's carved out of. > > But not from the 2nd provider, which defeats the purpose: > having a reliable Internet connection no matter what.
If you're only concerned about availability, it's not so important if networks have le 22 or less as they'll still have a default route to one of their upstreams, which will accept le 24. Also, the few such providers that only accept lesser prefixes are more often than not smaller content providers, rather than eyeball networks anyway, so you don't need to be concerned about their network performance to you. -Han
