nanog mailing list archives

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


From: Geoff Huston <gih () apnic net>
Date: Mon, 10 Oct 2022 20:10:27 +0000



On 11 Oct 2022, at 4:23 am, Tobias Fiebig <tobias () 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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