any dangers of filtering every /24 on full internet table to preserve FIB space ?

Stephane Bortzmeyer bortzmeyer at
Mon Oct 10 15:20:33 UTC 2022

On Mon, Oct 10, 2022 at 05:58:45PM +0300,
 Edvinas Kairys < at> wrote 
 a message of 35 lines which said:

> But theoretically every filtered /24 could be routed via smaller
> prefix /23 /22 /21 or etc.

I don't think this is true, even in theory, specially for legacy
prefixes. There is probably somewhere a Geoff Huston survey on /24
without a covering route.

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