nanog mailing list archives
Re: v6 deagg
From: Mikael Abrahamsson <swmike () swm pp se>
Date: Fri, 20 Feb 2015 10:42:03 +0100 (CET)
On Fri, 20 Feb 2015, Saku Ytti wrote:
Correct solution is not to use some so called 'strict' ipv6 filters, which break Internet, by not allowing discontinuous pops having connectivity.
Before, the practical level of de-agg was at /24 for IPv4. This meant only larger organisations could do it.
With automation in the network space increasing, and with /48 being justifiable to any site, and with /48 being the typical DFZ routing filter, we now have the possibility of a lot more entities seeing IP address based multihoming and "PI" being possible.
I don't like where this is headed. There are millions of entities that are justifiable to announce a /48 into DFZ. Do we want this to happen?
By allowing it, we're not putting any pressure to invent solutions for graceful address migration with continous services, and instead putting the pressure on the DFZ infrastructure. Is this the correct tradeoff?
How many smaller than /32 in the IPv6 DFZ do we allow before we need to start to worry? In these discussions I frequently interact with people who don't want to limit things until they are actually a problem. So when will this become a problem? 100k de-agged routes? 200k? 500k? 1M?
From a technical point of view, I have little interest in my routerhandling the fact that an office at the other side of the planet shut down their router, and learning this via DFZ.
-- Mikael Abrahamsson email: swmike () swm pp se
Current thread:
- v6 deagg Randy Bush (Feb 19)
- Re: v6 deagg manning bill (Feb 19)
- Re: v6 deagg Jima (Feb 19)
- Re: v6 deagg Brent Jones (Feb 19)
- Re: v6 deagg Christopher Morrow (Feb 19)
- Re: v6 deagg Owen DeLong (Feb 24)
- Re: v6 deagg Christopher Morrow (Feb 24)
- Re: v6 deagg Jima (Feb 19)
- Re: v6 deagg manning bill (Feb 19)
- Re: v6 deagg Saku Ytti (Feb 20)
- Re: v6 deagg Mikael Abrahamsson (Feb 20)
- Re: v6 deagg Nikolay Shopik (Feb 20)
- Re: v6 deagg Jack Bates (Feb 20)
- Re: v6 deagg Måns Nilsson (Feb 21)
- Re: v6 deagg Sander Steffann (Feb 21)
- Re: v6 deagg Måns Nilsson (Feb 21)
- Re: v6 deagg Mikael Abrahamsson (Feb 20)
- Re: v6 deagg Randy Bush (Feb 23)
- Re: v6 deagg William Herrin (Feb 23)
- Re: v6 deagg Sander Steffann (Feb 24)
- Re: v6 deagg William Herrin (Feb 24)