nanog mailing list archives
RE: filtering /48 is going to be necessary
From: George Bonser <gbonser () seven com>
Date: Sat, 10 Mar 2012 03:08:46 +0000
Owen said: I'm not a big fan, either, but, I think that the concept of "be conservative in what you announce and liberal in what you accept" has to apply in this case. Since it is a common (quasi-)legitimate practice, arbitrarily filtering it is ill-advised IMHO.
While I agree in principle, 16 bits of disaggregation has the potential for a lot of mayhem and 32 bits (accepting /64 from PA) would be catastrophic. This would seem to be a case where upstream providers can assist the end user in obtaining their own PI space if they wish to multihome. It would be in the provider's interest as it would reduce the number of potential complaints from customers concerning multihoming problems. I filter /32 from PA space and am currently filtering one route but since the aggregate it is from has the same next hop and since I don't see the route from anyone else, I'm not worried about it.
Current thread:
- filtering /48 is going to be necessary Jeff Wheeler (Mar 09)
- Re: filtering /48 is going to be necessary Jeroen Massar (Mar 09)
- Re: filtering /48 is going to be necessary William Herrin (Mar 09)
- Re: filtering /48 is going to be necessary Bernhard Schmidt (Mar 09)
- Re: filtering /48 is going to be necessary PC (Mar 09)
- Re: filtering /48 is going to be necessary Bernhard Schmidt (Mar 09)
- Re: filtering /48 is going to be necessary Owen DeLong (Mar 09)
- Re: filtering /48 is going to be necessary Bernhard Schmidt (Mar 09)
- Re: filtering /48 is going to be necessary Owen DeLong (Mar 09)
- RE: filtering /48 is going to be necessary George Bonser (Mar 09)
- Re: filtering /48 is going to be necessary Owen DeLong (Mar 09)
- RE: filtering /48 is going to be necessary George Bonser (Mar 09)
- RE: filtering /48 is going to be necessary George Bonser (Mar 09)
- Re: filtering /48 is going to be necessary Owen DeLong (Mar 10)
- Re: filtering /48 is going to be necessary PC (Mar 09)
- Re: filtering /48 is going to be necessary Jimmy Hess (Mar 09)
- Re: filtering /48 is going to be necessary Sander Steffann (Mar 09)
- Re: filtering /48 is going to be necessary Jimmy Hess (Mar 09)
- Re: filtering /48 is going to be necessary George Herbert (Mar 09)
- Re: filtering /48 is going to be necessary Owen DeLong (Mar 09)
- RE: filtering /48 is going to be necessary Leo Vegoda (Mar 09)