Le Mon, Nov 07, 2022 at 04:56:14PM +0100, Radu-Adrian FEURDEAN a écrit :
Hi,
On Mon, Nov 7, 2022, at 13:00, Tore Anderson wrote:
Actually, I do have some real-life experience here as I/AS39029 was part of the NIX renumbering process back in 2017. The whole operation was rather straight-forward and went very smoothly. NIX staff simply informed all members of their new IPs by e-mail and told to migrate within a certain date (different dates for NIX1 and NIX2).
Well, this seems to be the customer-side experience, not the IXP-side. Also, what I can see is that responsiveness of NOCs and peering teams of members is only getting worse with time. At France-IX, just changing a netmask (from /23 to /22) - because we have the biggest 3 out of 5 IXPs numbered from PA space - took just under 2 years to complete (23 months to be precise). More than 80% did the change in less than 3 months, but after 12 months we still had a few members that didn't change their config. OK, things end up in a slightly more violent manner with renumbering, but you sill end up with "zombie members", not all of them being small players.
/29 is way too small. It's 6 members, and that supposes that you don't have route-servers or any other internal stuff on the peering LAN. Getting from /29 to /25 that's 4 renumberings, and that may well happen within 2 years. You end up being labelled as "unstable" (read "junk" or "toy" IXP). 3 renumberings to get to /26.
NIX is (and was) a mid-sized IX, currently around 60 participants. Based on that experience I have honestly a very hard time believing that renumbering a small IX is «much more difficult [than renumbering a] data centre or an access provider».
Convincing different distinct parties to do something within a specific timeframe is always difficult. Especially when you have to deal with big companies. Pushing things too hard will only get you losing members..... I do agree that /26 is a decent minimum, and /27 is the strictest acceptable minimum (if there really isn't anything bigger left). ... or getting rid of v4 entirely, which seems to be on nobody's agenda ...
Thank you very much for your message Radu-Adrian, I was about to send something along the same line :) -- Denis Fondras / Liopen / AuvernIX Mob: +33.761.029.186