maximum ipv4 bgp prefix length of /24 ?

Tue Oct 3 18:56:27 UTC 2023

I think it is going to have to happen.  We have several folks on the IX and various consulting clients who only need 3-6 Ips but have to burn a full /24 to participate in BGP. I wrote a blog post awhile back on this topic https://blog.j2sw.com/data-center/unpopular-opinion-bgp-should-accept-smaller-than-a-24/

Justin Wilson
j2sw at mtin.net

—
https://j2sw.com (AS399332)
https://blog.j2sw.com - Podcast and Blog

> On Sep 30, 2023, at 1:48 PM, Randy Bush <randy at psg.com> wrote:
> 
>> About 60% of the table is /24 routes.
>> Just going to /25 will probably double the table size.
> 
> or maybe just add 60%, not 100%.  and it would take time.
> 
> agree it would be quite painful.  would rather not go there.  sad to
> say, i suspect some degree of lengthening is inevitable.  we have
> ourselves to blame; but blame does not move packets.
> 
> randy, who was in the danvers cabal for the /19 agreement
> 

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