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

Geoff Huston gih at apnic.net
Mon Oct 10 20:10:27 UTC 2022


> On 11 Oct 2022, at 4:23 am, Tobias Fiebig <tobias at reads-this-mailinglist.com> wrote:
> 
> Heho,
> Let alone $all the /24 assigned under the RIPE waiting list policy.
> 
> In the Geoff Huston spirit, I quickly took a look how less specifics for /24s looks in my table:
> 
[…]

> So it seems like there is a healthy amount (~260k) prefixes which lack a less specific.


I also looked using a slightly different approach - namely looking for /24s where there was no spanning aggregate that matched the /24’s AS Path. In my local table there are 224,580 of them.


Geoff





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