Hi. On 06/10/2023 16:00, nanog-request@nanog.org wrote:
From: Matthew Petach<mpetach@netflight.com> [...]
The IPv6 FIB is under the same pressure from more specifics. Its taken 20 years to get there, but the IPv6 FIB is now looking stable at 60% opf the total FIB size [2]. For me, thats a very surprising outcome in an essentially unmanaged system.
Were you expecting it to be lower than IPv4?
Mark.
I've dug through the mailman mirror on nanog.org, and there's currently no post by Geoff Huston saying that: https://community.nanog.org/search?q=geoff%20huston%20order%3Alatest
I read (and send) NANOG emails through the digest emails sent once a day. I noticed the same thing . I assumed it was sent directly to Mark (or the mail will enter my next digest...)
But I'll play along.
There's significantly less pressure to deaggregate IPv6 space right now, because we don't see many attacks on IPv6 number resources. Once we start to see v6 prefix hijackings, /48s being announced over /32 prefixes to pull traffic, then I think we'll see IPv6 deaggregation completely swamp IPv4 deaggregation.
How about we educate each other to not assume you must deaggregate your prefix especially with IPv6? I see 'some' (it's highly relative) networks on IPv4, they 'believe' they have to advertise every single /24 they have. And when they start with IPv6, they replicate the same mindset with a tons of /48 . You can imagine what will happen of course. A better alternative IMHO is to take advantage to the large prefix range and advertise a sub-aggregate when necessary. But absolutely not each end-node or customer prefix. -- Willy Manga @ongolaboy https://ongola.blogspot.com/