nanog mailing list archives
Re: number of unaggregated class C's in swamp?
From: Yakov Rekhter <yakov () cisco com>
Date: Sat, 30 Sep 95 19:19:00 PDT
Dennis,
I like the idea of measuring each and every class-A-sized block against some standard separately, since a lot of the class-C space has been allocated to regional registries this way and it inconveniences those places which have done the best the least. I'm less attached to the number 1200 in particular, but I do think an explicit target should be chosen which represents both a tractable limit to design big routers for and which allows the implementation of efficient address allocation strategie
s
which won't have to be tighened over time. I do note that 1200 is close to the threatened /18 address filter, but this is mostly accidental. I'd much rather see each space filled with /14's and /20's, and even an occasional /23 or /25, as appropriate and as long as the filled block was only 1200 (or N, for some well-defined N) routes, rather than picking an arbitrary, one-size-fits-all filter limit. The latter is a sign of failure.
So, perhaps we should just look at the total amount of IP address space advertised by a provider in its routing advertisements, then divide this amount by the number of routes the provider advertises, and see whether the resulting number meets the goal. Yakov.
Current thread:
- number of unaggregated class C's in swamp?, (continued)
- number of unaggregated class C's in swamp? Mark Kent (Sep 29)
- Re: number of unaggregated class C's in swamp? Michael Dillon (Sep 29)
- Re: number of unaggregated class C's in swamp? Curtis Villamizar (Sep 29)
- number of unaggregated class C's in swamp? Mark Kent (Sep 29)
- Re: number of unaggregated class C's in swamp? Barney Wolff (Sep 29)
- Re: number of unaggregated class C's in swamp? William Allen Simpson (Sep 29)
- Re: number of unaggregated class C's in swamp? Randy Bush (Sep 29)
- Re: number of unaggregated class C's in swamp? Michael Dillon (Sep 29)
- Re: number of unaggregated class C's in swamp? William Allen Simpson (Sep 29)
- Re: number of unaggregated class C's in swamp? Dennis Ferguson (Sep 29)
- Re: number of unaggregated class C's in swamp? Michael Dillon (Sep 29)
- Re: number of unaggregated class C's in swamp? Yakov Rekhter (Sep 30)
- Re: number of unaggregated class C's in swamp? Michael Dillon (Sep 29)
- Re: number of unaggregated class C's in swamp? Dennis Ferguson (Sep 29)
- Re: number of unaggregated class C's in swamp? Noel Chiappa (Sep 29)
- Re: number of unaggregated class C's in swamp? Tim Bass (Sep 29)
- Re: number of unaggregated class C's in swamp? Michael Dillon (Sep 29)
- Re: number of unaggregated class C's in swamp? William Allen Simpson (Sep 30)
- Re: number of unaggregated class C's in swamp? Walter O. Haas (Sep 30)